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GNU GENERAL PUBLIC LICENSE
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Version 3, 29 June 2007
|
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|
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Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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Preamble
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||||
The GNU General Public License is a free, copyleft license for
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software and other kinds of works.
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|
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The licenses for most software and other practical works are designed
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||||
to take away your freedom to share and change the works. By contrast,
|
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the GNU General Public License is intended to guarantee your freedom to
|
||||
share and change all versions of a program--to make sure it remains free
|
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software for all its users. We, the Free Software Foundation, use the
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GNU General Public License for most of our software; it applies also to
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any other work released this way by its authors. You can apply it to
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your programs, too.
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|
||||
When we speak of free software, we are referring to freedom, not
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price. Our General Public Licenses are designed to make sure that you
|
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have the freedom to distribute copies of free software (and charge for
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them if you wish), that you receive source code or can get it if you
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want it, that you can change the software or use pieces of it in new
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free programs, and that you know you can do these things.
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|
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To protect your rights, we need to prevent others from denying you
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certain responsibilities if you distribute copies of the software, or if
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you modify it: responsibilities to respect the freedom of others.
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For example, if you distribute copies of such a program, whether
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Developers that use the GNU GPL protect your rights with two steps:
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giving you legal permission to copy, distribute and/or modify it.
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For the developers' and authors' protection, the GPL clearly explains
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Some devices are designed to deny users access to install or run
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Finally, every program is threatened constantly by software patents.
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States should not allow patents to restrict development and use of
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The precise terms and conditions for copying, distribution and
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modification follow.
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TERMS AND CONDITIONS
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0. Definitions.
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|
||||
"This License" refers to version 3 of the GNU General Public License.
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"Copyright" also means copyright-like laws that apply to other kinds of
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works, such as semiconductor masks.
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"The Program" refers to any copyrightable work licensed under this
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To "modify" a work means to copy from or adapt all or part of the work
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A "covered work" means either the unmodified Program or a work based
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To "propagate" a work means to do anything with it that, without
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infringement under applicable copyright law, except executing it on a
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distribution (with or without modification), making available to the
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To "convey" a work means any kind of propagation that enables other
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An interactive user interface displays "Appropriate Legal Notices"
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The "source code" for a work means the preferred form of the work
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A "Standard Interface" means an interface that either is an official
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The "System Libraries" of an executable work include anything, other
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"Major Component", in this context, means a major essential component
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The "Corresponding Source" for a work in object code form means all
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||||
The Corresponding Source need not include anything that users
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||||
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||||
The Corresponding Source for a work in source code form is that
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||||
same work.
|
||||
|
||||
2. Basic Permissions.
|
||||
|
||||
All rights granted under this License are granted for the term of
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||||
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|
||||
conditions are met. This License explicitly affirms your unlimited
|
||||
permission to run the unmodified Program. The output from running a
|
||||
covered work is covered by this License only if the output, given its
|
||||
content, constitutes a covered work. This License acknowledges your
|
||||
rights of fair use or other equivalent, as provided by copyright law.
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||||
|
||||
You may make, run and propagate covered works that you do not
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||||
convey, without conditions so long as your license otherwise remains
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||||
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||||
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||||
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||||
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|
||||
not control copyright. Those thus making or running the covered works
|
||||
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||||
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|
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||||
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||||
Conveying under any other circumstances is permitted solely under
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||||
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||||
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||||
|
||||
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
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||||
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||||
No covered work shall be deemed part of an effective technological
|
||||
measure under any applicable law fulfilling obligations under article
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||||
11 of the WIPO copyright treaty adopted on 20 December 1996, or
|
||||
similar laws prohibiting or restricting circumvention of such
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||||
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|
||||
|
||||
When you convey a covered work, you waive any legal power to forbid
|
||||
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|
||||
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|
||||
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|
||||
modification of the work as a means of enforcing, against the work's
|
||||
users, your or third parties' legal rights to forbid circumvention of
|
||||
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||||
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||||
4. Conveying Verbatim Copies.
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||||
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||||
You may convey verbatim copies of the Program's source code as you
|
||||
receive it, in any medium, provided that you conspicuously and
|
||||
appropriately publish on each copy an appropriate copyright notice;
|
||||
keep intact all notices stating that this License and any
|
||||
non-permissive terms added in accord with section 7 apply to the code;
|
||||
keep intact all notices of the absence of any warranty; and give all
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||||
recipients a copy of this License along with the Program.
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||||
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||||
You may charge any price or no price for each copy that you convey,
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||||
and you may offer support or warranty protection for a fee.
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||||
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||||
5. Conveying Modified Source Versions.
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||||
|
||||
You may convey a work based on the Program, or the modifications to
|
||||
produce it from the Program, in the form of source code under the
|
||||
terms of section 4, provided that you also meet all of these conditions:
|
||||
|
||||
a) The work must carry prominent notices stating that you modified
|
||||
it, and giving a relevant date.
|
||||
|
||||
b) The work must carry prominent notices stating that it is
|
||||
released under this License and any conditions added under section
|
||||
7. This requirement modifies the requirement in section 4 to
|
||||
"keep intact all notices".
|
||||
|
||||
c) You must license the entire work, as a whole, under this
|
||||
License to anyone who comes into possession of a copy. This
|
||||
License will therefore apply, along with any applicable section 7
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||||
additional terms, to the whole of the work, and all its parts,
|
||||
regardless of how they are packaged. This License gives no
|
||||
permission to license the work in any other way, but it does not
|
||||
invalidate such permission if you have separately received it.
|
||||
|
||||
d) If the work has interactive user interfaces, each must display
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||||
Appropriate Legal Notices; however, if the Program has interactive
|
||||
interfaces that do not display Appropriate Legal Notices, your
|
||||
work need not make them do so.
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||||
|
||||
A compilation of a covered work with other separate and independent
|
||||
works, which are not by their nature extensions of the covered work,
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||||
and which are not combined with it such as to form a larger program,
|
||||
in or on a volume of a storage or distribution medium, is called an
|
||||
"aggregate" if the compilation and its resulting copyright are not
|
||||
used to limit the access or legal rights of the compilation's users
|
||||
beyond what the individual works permit. Inclusion of a covered work
|
||||
in an aggregate does not cause this License to apply to the other
|
||||
parts of the aggregate.
|
||||
|
||||
6. Conveying Non-Source Forms.
|
||||
|
||||
You may convey a covered work in object code form under the terms
|
||||
of sections 4 and 5, provided that you also convey the
|
||||
machine-readable Corresponding Source under the terms of this License,
|
||||
in one of these ways:
|
||||
|
||||
a) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by the
|
||||
Corresponding Source fixed on a durable physical medium
|
||||
customarily used for software interchange.
|
||||
|
||||
b) Convey the object code in, or embodied in, a physical product
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||||
(including a physical distribution medium), accompanied by a
|
||||
written offer, valid for at least three years and valid for as
|
||||
long as you offer spare parts or customer support for that product
|
||||
model, to give anyone who possesses the object code either (1) a
|
||||
copy of the Corresponding Source for all the software in the
|
||||
product that is covered by this License, on a durable physical
|
||||
medium customarily used for software interchange, for a price no
|
||||
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|
||||
conveying of source, or (2) access to copy the
|
||||
Corresponding Source from a network server at no charge.
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||||
|
||||
c) Convey individual copies of the object code with a copy of the
|
||||
written offer to provide the Corresponding Source. This
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||||
alternative is allowed only occasionally and noncommercially, and
|
||||
only if you received the object code with such an offer, in accord
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||||
with subsection 6b.
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||||
|
||||
d) Convey the object code by offering access from a designated
|
||||
place (gratis or for a charge), and offer equivalent access to the
|
||||
Corresponding Source in the same way through the same place at no
|
||||
further charge. You need not require recipients to copy the
|
||||
Corresponding Source along with the object code. If the place to
|
||||
copy the object code is a network server, the Corresponding Source
|
||||
may be on a different server (operated by you or a third party)
|
||||
that supports equivalent copying facilities, provided you maintain
|
||||
clear directions next to the object code saying where to find the
|
||||
Corresponding Source. Regardless of what server hosts the
|
||||
Corresponding Source, you remain obligated to ensure that it is
|
||||
available for as long as needed to satisfy these requirements.
|
||||
|
||||
e) Convey the object code using peer-to-peer transmission, provided
|
||||
you inform other peers where the object code and Corresponding
|
||||
Source of the work are being offered to the general public at no
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||||
charge under subsection 6d.
|
||||
|
||||
A separable portion of the object code, whose source code is excluded
|
||||
from the Corresponding Source as a System Library, need not be
|
||||
included in conveying the object code work.
|
||||
|
||||
A "User Product" is either (1) a "consumer product", which means any
|
||||
tangible personal property which is normally used for personal, family,
|
||||
or household purposes, or (2) anything designed or sold for incorporation
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||||
into a dwelling. In determining whether a product is a consumer product,
|
||||
doubtful cases shall be resolved in favor of coverage. For a particular
|
||||
product received by a particular user, "normally used" refers to a
|
||||
typical or common use of that class of product, regardless of the status
|
||||
of the particular user or of the way in which the particular user
|
||||
actually uses, or expects or is expected to use, the product. A product
|
||||
is a consumer product regardless of whether the product has substantial
|
||||
commercial, industrial or non-consumer uses, unless such uses represent
|
||||
the only significant mode of use of the product.
|
||||
|
||||
"Installation Information" for a User Product means any methods,
|
||||
procedures, authorization keys, or other information required to install
|
||||
and execute modified versions of a covered work in that User Product from
|
||||
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|
||||
suffice to ensure that the continued functioning of the modified object
|
||||
code is in no case prevented or interfered with solely because
|
||||
modification has been made.
|
||||
|
||||
If you convey an object code work under this section in, or with, or
|
||||
specifically for use in, a User Product, and the conveying occurs as
|
||||
part of a transaction in which the right of possession and use of the
|
||||
User Product is transferred to the recipient in perpetuity or for a
|
||||
fixed term (regardless of how the transaction is characterized), the
|
||||
Corresponding Source conveyed under this section must be accompanied
|
||||
by the Installation Information. But this requirement does not apply
|
||||
if neither you nor any third party retains the ability to install
|
||||
modified object code on the User Product (for example, the work has
|
||||
been installed in ROM).
|
||||
|
||||
The requirement to provide Installation Information does not include a
|
||||
requirement to continue to provide support service, warranty, or updates
|
||||
for a work that has been modified or installed by the recipient, or for
|
||||
the User Product in which it has been modified or installed. Access to a
|
||||
network may be denied when the modification itself materially and
|
||||
adversely affects the operation of the network or violates the rules and
|
||||
protocols for communication across the network.
|
||||
|
||||
Corresponding Source conveyed, and Installation Information provided,
|
||||
in accord with this section must be in a format that is publicly
|
||||
documented (and with an implementation available to the public in
|
||||
source code form), and must require no special password or key for
|
||||
unpacking, reading or copying.
|
||||
|
||||
7. Additional Terms.
|
||||
|
||||
"Additional permissions" are terms that supplement the terms of this
|
||||
License by making exceptions from one or more of its conditions.
|
||||
Additional permissions that are applicable to the entire Program shall
|
||||
be treated as though they were included in this License, to the extent
|
||||
that they are valid under applicable law. If additional permissions
|
||||
apply only to part of the Program, that part may be used separately
|
||||
under those permissions, but the entire Program remains governed by
|
||||
this License without regard to the additional permissions.
|
||||
|
||||
When you convey a copy of a covered work, you may at your option
|
||||
remove any additional permissions from that copy, or from any part of
|
||||
it. (Additional permissions may be written to require their own
|
||||
removal in certain cases when you modify the work.) You may place
|
||||
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|
||||
for which you have or can give appropriate copyright permission.
|
||||
|
||||
Notwithstanding any other provision of this License, for material you
|
||||
add to a covered work, you may (if authorized by the copyright holders of
|
||||
that material) supplement the terms of this License with terms:
|
||||
|
||||
a) Disclaiming warranty or limiting liability differently from the
|
||||
terms of sections 15 and 16 of this License; or
|
||||
|
||||
b) Requiring preservation of specified reasonable legal notices or
|
||||
author attributions in that material or in the Appropriate Legal
|
||||
Notices displayed by works containing it; or
|
||||
|
||||
c) Prohibiting misrepresentation of the origin of that material, or
|
||||
requiring that modified versions of such material be marked in
|
||||
reasonable ways as different from the original version; or
|
||||
|
||||
d) Limiting the use for publicity purposes of names of licensors or
|
||||
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|
||||
|
||||
e) Declining to grant rights under trademark law for use of some
|
||||
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||||
|
||||
f) Requiring indemnification of licensors and authors of that
|
||||
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|
||||
it) with contractual assumptions of liability to the recipient, for
|
||||
any liability that these contractual assumptions directly impose on
|
||||
those licensors and authors.
|
||||
|
||||
All other non-permissive additional terms are considered "further
|
||||
restrictions" within the meaning of section 10. If the Program as you
|
||||
received it, or any part of it, contains a notice stating that it is
|
||||
governed by this License along with a term that is a further
|
||||
restriction, you may remove that term. If a license document contains
|
||||
a further restriction but permits relicensing or conveying under this
|
||||
License, you may add to a covered work material governed by the terms
|
||||
of that license document, provided that the further restriction does
|
||||
not survive such relicensing or conveying.
|
||||
|
||||
If you add terms to a covered work in accord with this section, you
|
||||
must place, in the relevant source files, a statement of the
|
||||
additional terms that apply to those files, or a notice indicating
|
||||
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|
||||
|
||||
Additional terms, permissive or non-permissive, may be stated in the
|
||||
form of a separately written license, or stated as exceptions;
|
||||
the above requirements apply either way.
|
||||
|
||||
8. Termination.
|
||||
|
||||
You may not propagate or modify a covered work except as expressly
|
||||
provided under this License. Any attempt otherwise to propagate or
|
||||
modify it is void, and will automatically terminate your rights under
|
||||
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|
||||
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|
||||
|
||||
However, if you cease all violation of this License, then your
|
||||
license from a particular copyright holder is reinstated (a)
|
||||
provisionally, unless and until the copyright holder explicitly and
|
||||
finally terminates your license, and (b) permanently, if the copyright
|
||||
holder fails to notify you of the violation by some reasonable means
|
||||
prior to 60 days after the cessation.
|
||||
|
||||
Moreover, your license from a particular copyright holder is
|
||||
reinstated permanently if the copyright holder notifies you of the
|
||||
violation by some reasonable means, this is the first time you have
|
||||
received notice of violation of this License (for any work) from that
|
||||
copyright holder, and you cure the violation prior to 30 days after
|
||||
your receipt of the notice.
|
||||
|
||||
Termination of your rights under this section does not terminate the
|
||||
licenses of parties who have received copies or rights from you under
|
||||
this License. If your rights have been terminated and not permanently
|
||||
reinstated, you do not qualify to receive new licenses for the same
|
||||
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|
||||
|
||||
9. Acceptance Not Required for Having Copies.
|
||||
|
||||
You are not required to accept this License in order to receive or
|
||||
run a copy of the Program. Ancillary propagation of a covered work
|
||||
occurring solely as a consequence of using peer-to-peer transmission
|
||||
to receive a copy likewise does not require acceptance. However,
|
||||
nothing other than this License grants you permission to propagate or
|
||||
modify any covered work. These actions infringe copyright if you do
|
||||
not accept this License. Therefore, by modifying or propagating a
|
||||
covered work, you indicate your acceptance of this License to do so.
|
||||
|
||||
10. Automatic Licensing of Downstream Recipients.
|
||||
|
||||
Each time you convey a covered work, the recipient automatically
|
||||
receives a license from the original licensors, to run, modify and
|
||||
propagate that work, subject to this License. You are not responsible
|
||||
for enforcing compliance by third parties with this License.
|
||||
|
||||
An "entity transaction" is a transaction transferring control of an
|
||||
organization, or substantially all assets of one, or subdividing an
|
||||
organization, or merging organizations. If propagation of a covered
|
||||
work results from an entity transaction, each party to that
|
||||
transaction who receives a copy of the work also receives whatever
|
||||
licenses to the work the party's predecessor in interest had or could
|
||||
give under the previous paragraph, plus a right to possession of the
|
||||
Corresponding Source of the work from the predecessor in interest, if
|
||||
the predecessor has it or can get it with reasonable efforts.
|
||||
|
||||
You may not impose any further restrictions on the exercise of the
|
||||
rights granted or affirmed under this License. For example, you may
|
||||
not impose a license fee, royalty, or other charge for exercise of
|
||||
rights granted under this License, and you may not initiate litigation
|
||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||
any patent claim is infringed by making, using, selling, offering for
|
||||
sale, or importing the Program or any portion of it.
|
||||
|
||||
11. Patents.
|
||||
|
||||
A "contributor" is a copyright holder who authorizes use under this
|
||||
License of the Program or a work on which the Program is based. The
|
||||
work thus licensed is called the contributor's "contributor version".
|
||||
|
||||
A contributor's "essential patent claims" are all patent claims
|
||||
owned or controlled by the contributor, whether already acquired or
|
||||
hereafter acquired, that would be infringed by some manner, permitted
|
||||
by this License, of making, using, or selling its contributor version,
|
||||
but do not include claims that would be infringed only as a
|
||||
consequence of further modification of the contributor version. For
|
||||
purposes of this definition, "control" includes the right to grant
|
||||
patent sublicenses in a manner consistent with the requirements of
|
||||
this License.
|
||||
|
||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||
patent license under the contributor's essential patent claims, to
|
||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||
propagate the contents of its contributor version.
|
||||
|
||||
In the following three paragraphs, a "patent license" is any express
|
||||
agreement or commitment, however denominated, not to enforce a patent
|
||||
(such as an express permission to practice a patent or covenant not to
|
||||
sue for patent infringement). To "grant" such a patent license to a
|
||||
party means to make such an agreement or commitment not to enforce a
|
||||
patent against the party.
|
||||
|
||||
If you convey a covered work, knowingly relying on a patent license,
|
||||
and the Corresponding Source of the work is not available for anyone
|
||||
to copy, free of charge and under the terms of this License, through a
|
||||
publicly available network server or other readily accessible means,
|
||||
then you must either (1) cause the Corresponding Source to be so
|
||||
available, or (2) arrange to deprive yourself of the benefit of the
|
||||
patent license for this particular work, or (3) arrange, in a manner
|
||||
consistent with the requirements of this License, to extend the patent
|
||||
license to downstream recipients. "Knowingly relying" means you have
|
||||
actual knowledge that, but for the patent license, your conveying the
|
||||
covered work in a country, or your recipient's use of the covered work
|
||||
in a country, would infringe one or more identifiable patents in that
|
||||
country that you have reason to believe are valid.
|
||||
|
||||
If, pursuant to or in connection with a single transaction or
|
||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||
covered work, and grant a patent license to some of the parties
|
||||
receiving the covered work authorizing them to use, propagate, modify
|
||||
or convey a specific copy of the covered work, then the patent license
|
||||
you grant is automatically extended to all recipients of the covered
|
||||
work and works based on it.
|
||||
|
||||
A patent license is "discriminatory" if it does not include within
|
||||
the scope of its coverage, prohibits the exercise of, or is
|
||||
conditioned on the non-exercise of one or more of the rights that are
|
||||
specifically granted under this License. You may not convey a covered
|
||||
work if you are a party to an arrangement with a third party that is
|
||||
in the business of distributing software, under which you make payment
|
||||
to the third party based on the extent of your activity of conveying
|
||||
the work, and under which the third party grants, to any of the
|
||||
parties who would receive the covered work from you, a discriminatory
|
||||
patent license (a) in connection with copies of the covered work
|
||||
conveyed by you (or copies made from those copies), or (b) primarily
|
||||
for and in connection with specific products or compilations that
|
||||
contain the covered work, unless you entered into that arrangement,
|
||||
or that patent license was granted, prior to 28 March 2007.
|
||||
|
||||
Nothing in this License shall be construed as excluding or limiting
|
||||
any implied license or other defenses to infringement that may
|
||||
otherwise be available to you under applicable patent law.
|
||||
|
||||
12. No Surrender of Others' Freedom.
|
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot convey a
|
||||
covered work so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you may
|
||||
not convey it at all. For example, if you agree to terms that obligate you
|
||||
to collect a royalty for further conveying from those to whom you convey
|
||||
the Program, the only way you could satisfy both those terms and this
|
||||
License would be to refrain entirely from conveying the Program.
|
||||
|
||||
13. Use with the GNU Affero General Public License.
|
||||
|
||||
Notwithstanding any other provision of this License, you have
|
||||
permission to link or combine any covered work with a work licensed
|
||||
under version 3 of the GNU Affero General Public License into a single
|
||||
combined work, and to convey the resulting work. The terms of this
|
||||
License will continue to apply to the part which is the covered work,
|
||||
but the special requirements of the GNU Affero General Public License,
|
||||
section 13, concerning interaction through a network will apply to the
|
||||
combination as such.
|
||||
|
||||
14. Revised Versions of this License.
|
||||
|
||||
The Free Software Foundation may publish revised and/or new versions of
|
||||
the GNU General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the
|
||||
Program specifies that a certain numbered version of the GNU General
|
||||
Public License "or any later version" applies to it, you have the
|
||||
option of following the terms and conditions either of that numbered
|
||||
version or of any later version published by the Free Software
|
||||
Foundation. If the Program does not specify a version number of the
|
||||
GNU General Public License, you may choose any version ever published
|
||||
by the Free Software Foundation.
|
||||
|
||||
If the Program specifies that a proxy can decide which future
|
||||
versions of the GNU General Public License can be used, that proxy's
|
||||
public statement of acceptance of a version permanently authorizes you
|
||||
to choose that version for the Program.
|
||||
|
||||
Later license versions may give you additional or different
|
||||
permissions. However, no additional obligations are imposed on any
|
||||
author or copyright holder as a result of your choosing to follow a
|
||||
later version.
|
||||
|
||||
15. Disclaimer of Warranty.
|
||||
|
||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. Limitation of Liability.
|
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGES.
|
||||
|
||||
17. Interpretation of Sections 15 and 16.
|
||||
|
||||
If the disclaimer of warranty and limitation of liability provided
|
||||
above cannot be given local legal effect according to their terms,
|
||||
reviewing courts shall apply local law that most closely approximates
|
||||
an absolute waiver of all civil liability in connection with the
|
||||
Program, unless a warranty or assumption of liability accompanies a
|
||||
copy of the Program in return for a fee.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to the public, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest
|
||||
to attach them to the start of each source file to most effectively
|
||||
state the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program does terminal interaction, make it output a short
|
||||
notice like this when it starts in an interactive mode:
|
||||
|
||||
<program> Copyright (C) <year> <name of author>
|
||||
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||
parts of the General Public License. Of course, your program's commands
|
||||
might be different; for a GUI interface, you would use an "about box".
|
||||
|
||||
You should also get your employer (if you work as a programmer) or school,
|
||||
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||
For more information on this, and how to apply and follow the GNU GPL, see
|
||||
<https://www.gnu.org/licenses/>.
|
||||
|
||||
The GNU General Public License does not permit incorporating your program
|
||||
into proprietary programs. If your program is a subroutine library, you
|
||||
may consider it more useful to permit linking proprietary applications with
|
||||
the library. If this is what you want to do, use the GNU Lesser General
|
||||
Public License instead of this License. But first, please read
|
||||
<https://www.gnu.org/licenses/why-not-lgpl.html>.
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
# Monovania
|
||||
[](https://liberapay.com/rocketnine.space)
|
||||
|
||||
Metroidvania game
|
||||
|
||||
This game was created for the [Metroidvania Month 14 Game Jam](https://itch.io/jam/metroidvania-month-14).
|
||||
|
||||
## Play
|
||||
|
||||
### Compile
|
||||
|
||||
**Note:** You will need to install the dependencies listed for [your platform](https://github.com/hajimehoshi/ebiten/blob/main/README.md#platforms).
|
||||
|
||||
Run the following command to build a `monovania` executable:
|
||||
|
||||
`go install code.rocketnine.space/tslocum/monovania@latest`
|
||||
|
||||
Run `~/go/bin/monovania` to play.
|
||||
|
||||
## Support
|
||||
|
||||
Please share issues and suggestions [here](https://code.rocketnine.space/tslocum/monovania/issues).
|
||||
|
||||
## Dependencies
|
||||
|
||||
- [ebiten](https://github.com/hajimehoshi/ebiten) - Game engine
|
||||
- [go-tiled](https://github.com/lafriks/go-tiled) - Tiled map file (.TMX) parser
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
package asset
|
||||
|
||||
import (
|
||||
"embed"
|
||||
|
||||
"github.com/hajimehoshi/ebiten/v2"
|
||||
)
|
||||
|
||||
var ImgWhiteSquare = ebiten.NewImage(16, 16)
|
||||
|
||||
//go:embed image map
|
||||
var FS embed.FS
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
These tilesets were created by Ojas Sabadra.
|
||||
|
||||
https://ojas-sabadra.itch.io/dungeon-tileset-i
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 604 B |
Binary file not shown.
|
After Width: | Height: | Size: 15 KiB |
Binary file not shown.
|
After Width: | Height: | Size: 336 B |
Binary file not shown.
|
After Width: | Height: | Size: 122 B |
Binary file not shown.
|
After Width: | Height: | Size: 32 KiB |
Binary file not shown.
|
After Width: | Height: | Size: 2.6 KiB |
|
|
@ -0,0 +1,108 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<tileset version="1.5" tiledversion="1.7.2" name="tileset" tilewidth="16" tileheight="16" tilecount="64" columns="8">
|
||||
<image source="tileset.png" width="128" height="128"/>
|
||||
<tile id="0">
|
||||
<objectgroup draworder="index" id="2">
|
||||
<object id="1" x="0" y="0" width="16" height="16"/>
|
||||
</objectgroup>
|
||||
</tile>
|
||||
<tile id="1">
|
||||
<objectgroup draworder="index" id="2">
|
||||
<object id="1" x="0" y="0" width="16" height="16"/>
|
||||
</objectgroup>
|
||||
</tile>
|
||||
<tile id="2">
|
||||
<objectgroup draworder="index" id="2">
|
||||
<object id="1" x="0" y="0" width="16" height="16"/>
|
||||
</objectgroup>
|
||||
</tile>
|
||||
<tile id="3">
|
||||
<objectgroup draworder="index" id="2">
|
||||
<object id="1" x="0" y="0" width="15" height="15"/>
|
||||
</objectgroup>
|
||||
</tile>
|
||||
<tile id="8">
|
||||
<objectgroup draworder="index" id="2">
|
||||
<object id="1" x="0" y="0" width="16" height="16"/>
|
||||
</objectgroup>
|
||||
</tile>
|
||||
<tile id="10">
|
||||
<objectgroup draworder="index" id="2">
|
||||
<object id="1" x="0" y="0" width="16" height="16"/>
|
||||
</objectgroup>
|
||||
</tile>
|
||||
<tile id="11">
|
||||
<objectgroup draworder="index" id="2">
|
||||
<object id="1" x="7" y="8" width="9" height="8"/>
|
||||
</objectgroup>
|
||||
</tile>
|
||||
<tile id="12">
|
||||
<objectgroup draworder="index" id="2">
|
||||
<object id="1" x="0" y="8" width="9" height="8"/>
|
||||
</objectgroup>
|
||||
</tile>
|
||||
<tile id="13">
|
||||
<animation>
|
||||
<frame tileid="13" duration="150"/>
|
||||
<frame tileid="14" duration="150"/>
|
||||
<frame tileid="15" duration="150"/>
|
||||
</animation>
|
||||
</tile>
|
||||
<tile id="14">
|
||||
<animation>
|
||||
<frame tileid="15" duration="150"/>
|
||||
<frame tileid="13" duration="150"/>
|
||||
<frame tileid="14" duration="150"/>
|
||||
</animation>
|
||||
</tile>
|
||||
<tile id="15">
|
||||
<animation>
|
||||
<frame tileid="15" duration="150"/>
|
||||
<frame tileid="14" duration="150"/>
|
||||
<frame tileid="13" duration="150"/>
|
||||
</animation>
|
||||
</tile>
|
||||
<tile id="16">
|
||||
<objectgroup draworder="index" id="2">
|
||||
<object id="1" x="0" y="0" width="16" height="16"/>
|
||||
</objectgroup>
|
||||
</tile>
|
||||
<tile id="17">
|
||||
<objectgroup draworder="index" id="2">
|
||||
<object id="1" x="0" y="0" width="16" height="16"/>
|
||||
</objectgroup>
|
||||
</tile>
|
||||
<tile id="18">
|
||||
<objectgroup draworder="index" id="2">
|
||||
<object id="1" x="0" y="0" width="16" height="16"/>
|
||||
</objectgroup>
|
||||
</tile>
|
||||
<tile id="19">
|
||||
<objectgroup draworder="index" id="2">
|
||||
<object id="1" x="7" y="0" width="9" height="8"/>
|
||||
</objectgroup>
|
||||
</tile>
|
||||
<tile id="20">
|
||||
<objectgroup draworder="index" id="2">
|
||||
<object id="1" x="0" y="0" width="9" height="8"/>
|
||||
</objectgroup>
|
||||
</tile>
|
||||
<wangsets>
|
||||
<wangset name="Cave" type="corner" tile="-1">
|
||||
<wangcolor name="Wall" color="#ff0000" tile="-1" probability="1"/>
|
||||
<wangtile tileid="0" wangid="0,0,0,1,0,0,0,0"/>
|
||||
<wangtile tileid="1" wangid="0,0,0,1,0,1,0,0"/>
|
||||
<wangtile tileid="2" wangid="0,0,0,0,0,1,0,0"/>
|
||||
<wangtile tileid="8" wangid="0,1,0,1,0,0,0,0"/>
|
||||
<wangtile tileid="10" wangid="0,0,0,0,0,1,0,1"/>
|
||||
<wangtile tileid="11" wangid="0,1,0,0,0,1,0,1"/>
|
||||
<wangtile tileid="12" wangid="0,1,0,1,0,0,0,1"/>
|
||||
<wangtile tileid="16" wangid="0,1,0,0,0,0,0,0"/>
|
||||
<wangtile tileid="17" wangid="0,1,0,0,0,0,0,1"/>
|
||||
<wangtile tileid="18" wangid="0,0,0,0,0,0,0,1"/>
|
||||
<wangtile tileid="19" wangid="0,0,0,1,0,1,0,1"/>
|
||||
<wangtile tileid="20" wangid="0,1,0,1,0,1,0,0"/>
|
||||
<wangtile tileid="39" wangid="0,1,0,1,0,1,0,1"/>
|
||||
</wangset>
|
||||
</wangsets>
|
||||
</tileset>
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,44 @@
|
|||
package asset
|
||||
|
||||
import (
|
||||
"image"
|
||||
_ "image/png"
|
||||
|
||||
"github.com/hajimehoshi/ebiten/v2"
|
||||
)
|
||||
|
||||
var PlayerSS = LoadPlayerSpriteSheet()
|
||||
|
||||
// PlayerSpriteSheet represents a collection of sprite images.
|
||||
type PlayerSpriteSheet struct {
|
||||
Frame1 *ebiten.Image
|
||||
Frame2 *ebiten.Image
|
||||
}
|
||||
|
||||
// LoadPlayerSpriteSheet loads the embedded PlayerSpriteSheet.
|
||||
func LoadPlayerSpriteSheet() *PlayerSpriteSheet {
|
||||
tileSize := 16
|
||||
|
||||
f, err := FS.Open("image/ojas-dungeon/character-run.png")
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
img, _, err := image.Decode(f)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
sheet := ebiten.NewImageFromImage(img)
|
||||
|
||||
// spriteAt returns a sprite at the provided coordinates.
|
||||
spriteAt := func(x, y int) *ebiten.Image {
|
||||
return sheet.SubImage(image.Rect(x*tileSize, (y)*tileSize, (x+1)*tileSize, (y+1)*tileSize)).(*ebiten.Image)
|
||||
}
|
||||
|
||||
// Populate PlayerSpriteSheet.
|
||||
s := &PlayerSpriteSheet{}
|
||||
s.Frame1 = spriteAt(0, 0)
|
||||
s.Frame2 = spriteAt(0, 1)
|
||||
|
||||
return s
|
||||
}
|
||||
|
|
@ -0,0 +1,22 @@
|
|||
package component
|
||||
|
||||
import (
|
||||
"code.rocketnine.space/tslocum/gohan"
|
||||
)
|
||||
|
||||
type BulletComponent struct {
|
||||
}
|
||||
|
||||
var BulletComponentID = gohan.NewComponentID()
|
||||
|
||||
func (p *BulletComponent) ComponentID() gohan.ComponentID {
|
||||
return BulletComponentID
|
||||
}
|
||||
|
||||
func Bullet(e gohan.Entity) *BulletComponent {
|
||||
c, ok := e.Component(BulletComponentID).(*BulletComponent)
|
||||
if !ok {
|
||||
return nil
|
||||
}
|
||||
return c
|
||||
}
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
package component
|
||||
|
||||
import (
|
||||
"code.rocketnine.space/tslocum/gohan"
|
||||
)
|
||||
|
||||
type PositionComponent struct {
|
||||
X, Y float64
|
||||
}
|
||||
|
||||
var PositionComponentID = gohan.NewComponentID()
|
||||
|
||||
func (p *PositionComponent) ComponentID() gohan.ComponentID {
|
||||
return PositionComponentID
|
||||
}
|
||||
|
||||
func Position(e gohan.Entity) *PositionComponent {
|
||||
c, ok := e.Component(PositionComponentID).(*PositionComponent)
|
||||
if !ok {
|
||||
return nil
|
||||
}
|
||||
return c
|
||||
}
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
package component
|
||||
|
||||
import (
|
||||
"code.rocketnine.space/tslocum/gohan"
|
||||
"github.com/hajimehoshi/ebiten/v2"
|
||||
)
|
||||
|
||||
type SpriteComponent struct {
|
||||
Image *ebiten.Image
|
||||
HorizontalFlip bool
|
||||
VerticalFlip bool
|
||||
DiagonalFlip bool // TODO unimplemented
|
||||
}
|
||||
|
||||
var SpriteComponentID = gohan.NewComponentID()
|
||||
|
||||
func (p *SpriteComponent) ComponentID() gohan.ComponentID {
|
||||
return SpriteComponentID
|
||||
}
|
||||
|
||||
func Sprite(e gohan.Entity) *SpriteComponent {
|
||||
c, ok := e.Component(SpriteComponentID).(*SpriteComponent)
|
||||
if !ok {
|
||||
return nil
|
||||
}
|
||||
return c
|
||||
}
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
package component
|
||||
|
||||
import (
|
||||
"code.rocketnine.space/tslocum/gohan"
|
||||
)
|
||||
|
||||
type VelocityComponent struct {
|
||||
X, Y float64
|
||||
}
|
||||
|
||||
var VelocityComponentID = gohan.NewComponentID()
|
||||
|
||||
func (c *VelocityComponent) ComponentID() gohan.ComponentID {
|
||||
return VelocityComponentID
|
||||
}
|
||||
|
||||
func Velocity(e gohan.Entity) *VelocityComponent {
|
||||
c, ok := e.Component(VelocityComponentID).(*VelocityComponent)
|
||||
if !ok {
|
||||
return nil
|
||||
}
|
||||
return c
|
||||
}
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
package component
|
||||
|
||||
import (
|
||||
"time"
|
||||
|
||||
"code.rocketnine.space/tslocum/gohan"
|
||||
)
|
||||
|
||||
type WeaponComponent struct {
|
||||
Ammo int
|
||||
|
||||
Damage int
|
||||
|
||||
FireRate time.Duration
|
||||
LastFire time.Time
|
||||
|
||||
BulletSpeed float64
|
||||
}
|
||||
|
||||
var WeaponComponentID = gohan.NewComponentID()
|
||||
|
||||
func (p *WeaponComponent) ComponentID() gohan.ComponentID {
|
||||
return WeaponComponentID
|
||||
}
|
||||
|
||||
func Weapon(e gohan.Entity) *WeaponComponent {
|
||||
c, ok := e.Component(WeaponComponentID).(*WeaponComponent)
|
||||
if !ok {
|
||||
return nil
|
||||
}
|
||||
return c
|
||||
}
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
package entity
|
||||
|
||||
import (
|
||||
"code.rocketnine.space/tslocum/gohan"
|
||||
"code.rocketnine.space/tslocum/monovania/asset"
|
||||
"code.rocketnine.space/tslocum/monovania/component"
|
||||
)
|
||||
|
||||
func NewBullet(x, y, xSpeed, ySpeed float64) gohan.Entity {
|
||||
bullet := gohan.NewEntity()
|
||||
|
||||
bullet.AddComponent(&component.PositionComponent{
|
||||
X: x,
|
||||
Y: y,
|
||||
})
|
||||
|
||||
bullet.AddComponent(&component.VelocityComponent{
|
||||
X: xSpeed,
|
||||
Y: ySpeed,
|
||||
})
|
||||
|
||||
bullet.AddComponent(&component.SpriteComponent{
|
||||
Image: asset.ImgWhiteSquare,
|
||||
})
|
||||
|
||||
bullet.AddComponent(&component.BulletComponent{})
|
||||
|
||||
return bullet
|
||||
}
|
||||
|
|
@ -0,0 +1,35 @@
|
|||
package entity
|
||||
|
||||
import (
|
||||
"time"
|
||||
|
||||
"code.rocketnine.space/tslocum/monovania/asset"
|
||||
|
||||
"code.rocketnine.space/tslocum/gohan"
|
||||
"code.rocketnine.space/tslocum/monovania/component"
|
||||
)
|
||||
|
||||
func NewPlayer(x, y float64) gohan.Entity {
|
||||
player := gohan.NewEntity()
|
||||
|
||||
player.AddComponent(&component.PositionComponent{
|
||||
X: x,
|
||||
Y: y,
|
||||
})
|
||||
|
||||
player.AddComponent(&component.VelocityComponent{})
|
||||
|
||||
weapon := &component.WeaponComponent{
|
||||
Ammo: 1000,
|
||||
Damage: 1,
|
||||
FireRate: 100 * time.Millisecond,
|
||||
BulletSpeed: 15,
|
||||
}
|
||||
player.AddComponent(weapon)
|
||||
|
||||
player.AddComponent(&component.SpriteComponent{
|
||||
Image: asset.PlayerSS.Frame1,
|
||||
})
|
||||
|
||||
return player
|
||||
}
|
||||
|
|
@ -0,0 +1,194 @@
|
|||
package game
|
||||
|
||||
import (
|
||||
"image/color"
|
||||
"math"
|
||||
"os"
|
||||
"sync"
|
||||
|
||||
"code.rocketnine.space/tslocum/monovania/world"
|
||||
|
||||
"code.rocketnine.space/tslocum/monovania/component"
|
||||
|
||||
"code.rocketnine.space/tslocum/monovania/entity"
|
||||
|
||||
"code.rocketnine.space/tslocum/monovania/asset"
|
||||
|
||||
"code.rocketnine.space/tslocum/gohan"
|
||||
"code.rocketnine.space/tslocum/monovania/system"
|
||||
"github.com/hajimehoshi/ebiten/v2"
|
||||
"github.com/hajimehoshi/ebiten/v2/audio"
|
||||
"golang.org/x/text/language"
|
||||
"golang.org/x/text/message"
|
||||
)
|
||||
|
||||
var numberPrinter = message.NewPrinter(language.English)
|
||||
|
||||
var startButtons = []ebiten.StandardGamepadButton{
|
||||
ebiten.StandardGamepadButtonRightBottom,
|
||||
ebiten.StandardGamepadButtonRightRight,
|
||||
ebiten.StandardGamepadButtonRightLeft,
|
||||
ebiten.StandardGamepadButtonRightTop,
|
||||
ebiten.StandardGamepadButtonFrontTopLeft,
|
||||
ebiten.StandardGamepadButtonFrontTopRight,
|
||||
ebiten.StandardGamepadButtonFrontBottomLeft,
|
||||
ebiten.StandardGamepadButtonFrontBottomRight,
|
||||
ebiten.StandardGamepadButtonCenterLeft,
|
||||
ebiten.StandardGamepadButtonCenterRight,
|
||||
ebiten.StandardGamepadButtonLeftStick,
|
||||
ebiten.StandardGamepadButtonRightStick,
|
||||
ebiten.StandardGamepadButtonLeftBottom,
|
||||
ebiten.StandardGamepadButtonLeftRight,
|
||||
ebiten.StandardGamepadButtonLeftLeft,
|
||||
ebiten.StandardGamepadButtonLeftTop,
|
||||
ebiten.StandardGamepadButtonCenterCenter,
|
||||
}
|
||||
|
||||
const sampleRate = 44100
|
||||
|
||||
// game is an isometric demo game.
|
||||
type game struct {
|
||||
w, h int
|
||||
|
||||
player gohan.Entity
|
||||
|
||||
audioContext *audio.Context
|
||||
|
||||
op *ebiten.DrawImageOptions
|
||||
|
||||
disableEsc bool
|
||||
|
||||
debugMode bool
|
||||
cpuProfile *os.File
|
||||
|
||||
movementSystem *system.MovementSystem
|
||||
renderSystem *system.RenderSystem
|
||||
|
||||
sync.Mutex
|
||||
camScale float64
|
||||
|
||||
playerX, playerY float64
|
||||
}
|
||||
|
||||
// NewGame returns a new isometric demo game.
|
||||
func NewGame() (*game, error) {
|
||||
g := &game{
|
||||
camScale: 4,
|
||||
playerX: 7,
|
||||
playerY: 14,
|
||||
op: &ebiten.DrawImageOptions{},
|
||||
}
|
||||
|
||||
g.audioContext = audio.NewContext(sampleRate)
|
||||
|
||||
// TODO replace with fs embed
|
||||
g.changeMap("/home/trevor/programming/monovania/asset/map/m1.tmx")
|
||||
|
||||
spawnX, spawnY := -math.MaxFloat64, -math.MaxFloat64
|
||||
for _, grp := range world.World.ObjectGroups {
|
||||
if grp.Name == "PLAYERSPAWN" {
|
||||
for _, obj := range grp.Objects {
|
||||
spawnX, spawnY = obj.X, obj.Y-1
|
||||
}
|
||||
break
|
||||
}
|
||||
}
|
||||
if spawnX == -math.MaxFloat64 || spawnY == -math.MaxFloat64 {
|
||||
panic("world does not contain a player spawn object")
|
||||
}
|
||||
|
||||
g.player = entity.NewPlayer(spawnX, spawnY)
|
||||
|
||||
g.addSystems()
|
||||
|
||||
err := g.loadAssets()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
asset.ImgWhiteSquare.Fill(color.White)
|
||||
|
||||
return g, nil
|
||||
}
|
||||
|
||||
func (g *game) tileToGameCoords(x, y int) (float64, float64) {
|
||||
return float64(x) * 16, float64(y) * 16
|
||||
}
|
||||
|
||||
func (g *game) changeMap(filePath string) {
|
||||
world.LoadMap(filePath)
|
||||
}
|
||||
|
||||
// Layout is called when the game's layout changes.
|
||||
func (g *game) Layout(outsideWidth, outsideHeight int) (int, int) {
|
||||
s := ebiten.DeviceScaleFactor()
|
||||
w, h := int(s*float64(outsideWidth)), int(s*float64(outsideHeight))
|
||||
if w != g.w || h != g.h {
|
||||
g.w, g.h = w, h
|
||||
g.movementSystem.ScreenW, g.movementSystem.ScreenH = float64(w), float64(h)
|
||||
g.renderSystem.ScreenW, g.renderSystem.ScreenH = w, h
|
||||
}
|
||||
return g.w, g.h
|
||||
}
|
||||
|
||||
func (g *game) Update() error {
|
||||
if ebiten.IsWindowBeingClosed() {
|
||||
g.Exit()
|
||||
return nil
|
||||
}
|
||||
|
||||
err := gohan.Update()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Update camera position.
|
||||
position := component.Position(g.player)
|
||||
system.CamX, system.CamY = position.X, position.Y
|
||||
return nil
|
||||
}
|
||||
|
||||
func (g *game) Draw(screen *ebiten.Image) {
|
||||
err := gohan.Draw(screen)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
||||
func (g *game) addSystems() {
|
||||
g.movementSystem = system.NewMovementSystem() // TODO move into component
|
||||
|
||||
gohan.AddSystem(system.NewPlayerMoveSystem(g.player, g.movementSystem))
|
||||
|
||||
gohan.AddSystem(g.movementSystem)
|
||||
|
||||
gohan.AddSystem(system.NewFireWeaponSystem(g.player))
|
||||
|
||||
g.renderSystem = system.NewRenderSystem()
|
||||
gohan.AddSystem(g.renderSystem)
|
||||
|
||||
gohan.AddSystem(system.NewRenderDebugTextSystem(g.player))
|
||||
}
|
||||
|
||||
func (g *game) loadAssets() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (g *game) Exit() {
|
||||
os.Exit(0)
|
||||
}
|
||||
|
||||
func angle(x1, y1, x2, y2 float64) float64 {
|
||||
return math.Atan2(y1-y2, x1-x2)
|
||||
}
|
||||
|
||||
func deltaXY(x1, y1, x2, y2 float64) (dx float64, dy float64) {
|
||||
dx, dy = x1-x2, y1-y2
|
||||
if dx < 0 {
|
||||
dx *= -1
|
||||
}
|
||||
if dy < 0 {
|
||||
dy *= -1
|
||||
}
|
||||
return dx, dy
|
||||
}
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
module code.rocketnine.space/tslocum/monovania
|
||||
|
||||
go 1.17
|
||||
|
||||
replace code.rocketnine.space/tslocum/gohan => /home/trevor/programming/gohan
|
||||
|
||||
require (
|
||||
code.rocketnine.space/tslocum/gohan v0.0.0-20211122191828-8d4dabd62e76
|
||||
github.com/hajimehoshi/ebiten/v2 v2.2.2
|
||||
github.com/lafriks/go-tiled v0.5.0
|
||||
golang.org/x/text v0.3.7
|
||||
)
|
||||
|
||||
require (
|
||||
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20211024062804-40e447a793be // indirect
|
||||
github.com/hajimehoshi/oto/v2 v2.1.0-alpha.4 // indirect
|
||||
github.com/jezek/xgb v0.0.0-20210312150743-0e0f116e1240 // indirect
|
||||
golang.org/x/exp v0.0.0-20211122174006-ba1b3c356383 // indirect
|
||||
golang.org/x/image v0.0.0-20211028202545-6944b10bf410 // indirect
|
||||
golang.org/x/mobile v0.0.0-20211109191125-d61a72f26a1a // indirect
|
||||
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
|
||||
golang.org/x/sys v0.0.0-20211117180635-dee7805ff2e1 // indirect
|
||||
)
|
||||
|
|
@ -0,0 +1,90 @@
|
|||
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
|
||||
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
|
||||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/disintegration/imaging v1.6.2/go.mod h1:44/5580QXChDfwIclfc/PCwrr44amcmDAg8hxG0Ewe4=
|
||||
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20210727001814-0db043d8d5be/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
|
||||
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20211024062804-40e447a793be h1:Z28GdQBfKOL8tNHjvaDn3wHDO7AzTRkmAXvHvnopp98=
|
||||
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20211024062804-40e447a793be/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
|
||||
github.com/hajimehoshi/bitmapfont/v2 v2.1.3/go.mod h1:2BnYrkTQGThpr/CY6LorYtt/zEPNzvE/ND69CRTaHMs=
|
||||
github.com/hajimehoshi/ebiten/v2 v2.2.2 h1:92E+ogdNyH1P/LlvMQ7vonbFDh6bl+O7Ak+H1HX0RX8=
|
||||
github.com/hajimehoshi/ebiten/v2 v2.2.2/go.mod h1:olKl/qqhMBBAm2oI7Zy292nCtE+nitlmYKNF3UpbFn0=
|
||||
github.com/hajimehoshi/file2byteslice v0.0.0-20210813153925-5340248a8f41/go.mod h1:CqqAHp7Dk/AqQiwuhV1yT2334qbA/tFWQW0MD2dGqUE=
|
||||
github.com/hajimehoshi/go-mp3 v0.3.2/go.mod h1:qMJj/CSDxx6CGHiZeCgbiq2DSUkbK0UbtXShQcnfyMM=
|
||||
github.com/hajimehoshi/oto v0.6.1/go.mod h1:0QXGEkbuJRohbJaxr7ZQSxnju7hEhseiPx2hrh6raOI=
|
||||
github.com/hajimehoshi/oto/v2 v2.1.0-alpha.2/go.mod h1:rUKQmwMkqmRxe+IAof9+tuYA2ofm8cAWXFmSfzDN8vQ=
|
||||
github.com/hajimehoshi/oto/v2 v2.1.0-alpha.4 h1:6NIzk6tIJIOUB7mB00FtE5pz0Yt9LDBPcGirBIteJsI=
|
||||
github.com/hajimehoshi/oto/v2 v2.1.0-alpha.4/go.mod h1:rUKQmwMkqmRxe+IAof9+tuYA2ofm8cAWXFmSfzDN8vQ=
|
||||
github.com/jakecoffman/cp v1.1.0/go.mod h1:JjY/Fp6d8E1CHnu74gWNnU0+b9VzEdUVPoJxg2PsTQg=
|
||||
github.com/jezek/xgb v0.0.0-20210312150743-0e0f116e1240 h1:dy+DS31tGEGCsZzB45HmJJNHjur8GDgtRNX9U7HnSX4=
|
||||
github.com/jezek/xgb v0.0.0-20210312150743-0e0f116e1240/go.mod h1:3P4UH/k22rXyHIJD2w4h2XMqPX4Of/eySEZq9L6wqc4=
|
||||
github.com/jfreymuth/oggvorbis v1.0.3/go.mod h1:1U4pqWmghcoVsCJJ4fRBKv9peUJMBHixthRlBeD6uII=
|
||||
github.com/jfreymuth/vorbis v1.0.2/go.mod h1:DoftRo4AznKnShRl1GxiTFCseHr4zR9BN3TWXyuzrqQ=
|
||||
github.com/lafriks/go-tiled v0.5.0 h1:f2BmYuBXGZHkArJJQ6NDGLfYJFJlDme7RVDjVzqxhTU=
|
||||
github.com/lafriks/go-tiled v0.5.0/go.mod h1:Wm/iyI8TPSPWCHERNrAIRqh71ARI/liKyil/UNHg9dE=
|
||||
github.com/pkg/browser v0.0.0-20180916011732-0a3d74bf9ce4/go.mod h1:4OwLy04Bl9Ef3GJJCoec+30X3LQs/0/m4HFRt/2LUSA=
|
||||
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
|
||||
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
|
||||
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||
github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
|
||||
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
|
||||
github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
|
||||
github.com/yuin/goldmark v1.4.0/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
|
||||
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
|
||||
golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
|
||||
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
|
||||
golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
|
||||
golang.org/x/exp v0.0.0-20190731235908-ec7cb31e5a56/go.mod h1:JhuoJpWY28nO4Vef9tZUw9qufEGTyX1+7lmHxV5q5G4=
|
||||
golang.org/x/exp v0.0.0-20211122174006-ba1b3c356383 h1:zbtkDrKy8/3hWfYxyfZAtwi63LW8MyIUKVBfZItbqHc=
|
||||
golang.org/x/exp v0.0.0-20211122174006-ba1b3c356383/go.mod h1:b9TAUYHmRtqA6klRHApnXMnj+OyLce4yF5cZCUbk2ps=
|
||||
golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
|
||||
golang.org/x/image v0.0.0-20190703141733-d6a02ce849c9/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
|
||||
golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
|
||||
golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
|
||||
golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
|
||||
golang.org/x/image v0.0.0-20211028202545-6944b10bf410 h1:hTftEOvwiOq2+O8k2D5/Q7COC7k5Qcrgc2TFURJYnvQ=
|
||||
golang.org/x/image v0.0.0-20211028202545-6944b10bf410/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
|
||||
golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
|
||||
golang.org/x/mobile v0.0.0-20190415191353-3e0bab5405d6/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
|
||||
golang.org/x/mobile v0.0.0-20210902104108-5d9a33257ab5/go.mod h1:c4YKU3ZylDmvbw+H/PSvm42vhdWbuxCzbonauEAP9B8=
|
||||
golang.org/x/mobile v0.0.0-20211109191125-d61a72f26a1a h1:VGK2tvC63sblAsLlPgn0AXI/qQJfdEODdMGCJdgmCBw=
|
||||
golang.org/x/mobile v0.0.0-20211109191125-d61a72f26a1a/go.mod h1:pe2sM7Uk+2Su1y7u/6Z8KJ24D7lepUjFZbhFOrmDfuQ=
|
||||
golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
|
||||
golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
|
||||
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
|
||||
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
|
||||
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||
golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
|
||||
golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
|
||||
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
|
||||
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20190429190828-d89cdac9e872/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.0.0-20210917161153-d61c044b1678/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.0.0-20211117180635-dee7805ff2e1 h1:kwrAHlwJ0DUBZwQ238v+Uod/3eZ8B2K5rYsUHBQvzmI=
|
||||
golang.org/x/sys v0.0.0-20211117180635-dee7805ff2e1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
|
||||
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
||||
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
||||
golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
|
||||
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
|
||||
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
|
||||
golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
|
||||
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
|
||||
golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
|
||||
golang.org/x/tools v0.1.6/go.mod h1:LGqMHiF4EqQNHR1JncWGqT5BVaXmza+X+BDGol+dOxo=
|
||||
golang.org/x/tools v0.1.8-0.20211022200916-316ba0b74098/go.mod h1:LGqMHiF4EqQNHR1JncWGqT5BVaXmza+X+BDGol+dOxo=
|
||||
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
|
||||
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
|
|
@ -0,0 +1,63 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"log"
|
||||
"os"
|
||||
"os/signal"
|
||||
"syscall"
|
||||
|
||||
"code.rocketnine.space/tslocum/monovania/world"
|
||||
|
||||
"code.rocketnine.space/tslocum/monovania/game"
|
||||
"github.com/hajimehoshi/ebiten/v2"
|
||||
)
|
||||
|
||||
func main() {
|
||||
ebiten.SetWindowTitle("Monovania")
|
||||
ebiten.SetWindowResizable(true)
|
||||
ebiten.SetMaxTPS(144)
|
||||
ebiten.SetRunnableOnUnfocused(true) // Note - this currently does nothing in ebiten
|
||||
ebiten.SetWindowClosingHandled(true)
|
||||
ebiten.SetFPSMode(ebiten.FPSModeVsyncOn)
|
||||
ebiten.SetCursorShape(ebiten.CursorShapeCrosshair)
|
||||
|
||||
var fullscreen bool
|
||||
flag.BoolVar(&fullscreen, "fullscreen", false, "run in fullscreen mode")
|
||||
flag.IntVar(&world.World.Debug, "debug", 0, "print debug information")
|
||||
flag.Parse()
|
||||
|
||||
g, err := game.NewGame()
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
if fullscreen {
|
||||
ebiten.SetFullscreen(true)
|
||||
}
|
||||
|
||||
//parseFlags(g)
|
||||
|
||||
sigc := make(chan os.Signal, 1)
|
||||
signal.Notify(sigc,
|
||||
syscall.SIGINT,
|
||||
syscall.SIGTERM)
|
||||
go func() {
|
||||
<-sigc
|
||||
|
||||
g.Exit()
|
||||
}()
|
||||
|
||||
/*err = g.reset()
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
if !g.debugMode {
|
||||
g.gameStartTime = time.Time{}
|
||||
}*/
|
||||
|
||||
err = ebiten.RunGame(g)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,88 @@
|
|||
package system
|
||||
|
||||
import (
|
||||
"math"
|
||||
"time"
|
||||
|
||||
"code.rocketnine.space/tslocum/monovania/entity"
|
||||
|
||||
"code.rocketnine.space/tslocum/gohan"
|
||||
"code.rocketnine.space/tslocum/monovania/component"
|
||||
"github.com/hajimehoshi/ebiten/v2"
|
||||
)
|
||||
|
||||
func angle(x1, y1, x2, y2 float64) float64 {
|
||||
return math.Atan2(y1-y2, x1-x2)
|
||||
}
|
||||
|
||||
type fireWeaponSystem struct {
|
||||
player gohan.Entity
|
||||
}
|
||||
|
||||
func NewFireWeaponSystem(player gohan.Entity) *fireWeaponSystem {
|
||||
return &fireWeaponSystem{
|
||||
player: player,
|
||||
}
|
||||
}
|
||||
|
||||
func (_ *fireWeaponSystem) Matches(e gohan.Entity) bool {
|
||||
weapon := component.Weapon(e)
|
||||
|
||||
return weapon != nil
|
||||
}
|
||||
|
||||
func (s *fireWeaponSystem) fire(weapon *component.WeaponComponent, position *component.PositionComponent, fireAngle float64) {
|
||||
if time.Since(weapon.LastFire) < weapon.FireRate {
|
||||
return
|
||||
}
|
||||
|
||||
weapon.Ammo--
|
||||
weapon.LastFire = time.Now()
|
||||
|
||||
speedX := math.Cos(fireAngle) * -weapon.BulletSpeed
|
||||
speedY := math.Sin(fireAngle) * -weapon.BulletSpeed
|
||||
|
||||
bullet := entity.NewBullet(position.X, position.Y, speedX, speedY)
|
||||
_ = bullet
|
||||
}
|
||||
|
||||
func (s *fireWeaponSystem) Update(_ gohan.Entity) error {
|
||||
weapon := component.Weapon(s.player)
|
||||
|
||||
if weapon.Ammo <= 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
position := component.Position(s.player)
|
||||
|
||||
if ebiten.IsMouseButtonPressed(ebiten.MouseButtonLeft) {
|
||||
cursorX, cursorY := ebiten.CursorPosition()
|
||||
fireAngle := angle(position.X, position.Y, float64(cursorX), float64(cursorY))
|
||||
s.fire(weapon, position, fireAngle)
|
||||
}
|
||||
|
||||
switch {
|
||||
case ebiten.IsKeyPressed(ebiten.KeyLeft) && ebiten.IsKeyPressed(ebiten.KeyUp):
|
||||
s.fire(weapon, position, math.Pi/4)
|
||||
case ebiten.IsKeyPressed(ebiten.KeyLeft) && ebiten.IsKeyPressed(ebiten.KeyDown):
|
||||
s.fire(weapon, position, -math.Pi/4)
|
||||
case ebiten.IsKeyPressed(ebiten.KeyRight) && ebiten.IsKeyPressed(ebiten.KeyUp):
|
||||
s.fire(weapon, position, math.Pi*.75)
|
||||
case ebiten.IsKeyPressed(ebiten.KeyRight) && ebiten.IsKeyPressed(ebiten.KeyDown):
|
||||
s.fire(weapon, position, -math.Pi*.75)
|
||||
case ebiten.IsKeyPressed(ebiten.KeyLeft):
|
||||
s.fire(weapon, position, 0)
|
||||
case ebiten.IsKeyPressed(ebiten.KeyRight):
|
||||
s.fire(weapon, position, math.Pi)
|
||||
case ebiten.IsKeyPressed(ebiten.KeyUp):
|
||||
s.fire(weapon, position, math.Pi/2)
|
||||
case ebiten.IsKeyPressed(ebiten.KeyDown):
|
||||
s.fire(weapon, position, -math.Pi/2)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (_ *fireWeaponSystem) Draw(_ gohan.Entity, _ *ebiten.Image) error {
|
||||
return gohan.ErrSystemWithoutDraw
|
||||
}
|
||||
|
|
@ -0,0 +1,94 @@
|
|||
package system
|
||||
|
||||
import (
|
||||
"time"
|
||||
|
||||
"code.rocketnine.space/tslocum/monovania/world"
|
||||
|
||||
"github.com/hajimehoshi/ebiten/v2/inpututil"
|
||||
|
||||
"code.rocketnine.space/tslocum/gohan"
|
||||
"code.rocketnine.space/tslocum/monovania/component"
|
||||