ejoy / ejoy2d Goto Github PK

A 2D Graphics Engine for Mobile Game

License: MIT License

Lua 1.12% Objective-C 0.38% C 97.81% C++ 0.59% Makefile 0.08% Batchfile 0.02%

ejoy2d's Issues

2.5D sprite遮挡问题

在考虑2.5d情况下，场景中多个层级（地下，地面，空中）间的的单位以及同层级间的单位遮挡问题，如果引入layer概念感觉有些麻烦，只用sprite的y坐标做比较貌似不能解决多层级概念，这里是否有必要为sprite加入z_position呢？或者有其他的什么办法。

本人新手，问题比较小白一点，还望见谅

vc下编译ejoy2d

不知道有没有人像我这样平时工作用vs，但不怎么用mingw，下面是在vs下编译ejoy2d的方法，有需要的可以看看：

前面的步骤就不说了，建工程（console程序），导入代码，下载必要的库文件，设置include路径之类的。下面的部分是解决编译连接的一些问题。

ejoy2d用了gcc的语法扩展，在vs下要用c++方式编译，在属性高级-编译为，选c++。
但这样还编不了，需要把用到的扩展语法部分改成vs可识别的，比如动态数组，vs在c++编译也不支持。
以上两步就可以编译成功，但是还不能链接，需要把lua相关的头文件引入修改为extern “C"，如下：
extern "C"
{

include <lua.h>

include <lauxlib.h>

include <lualib.h>

};

PS：ejoy2d.exe执行要在代码根目录，因为运行需要加载ejoy2d目录下的脚本

lnewlabel函数参数混乱

https://github.com/ejoy/ejoy2d/blob/master/lib/lsprite.c#L69-L73
label.space_w = (int)lua_tointeger(L, 5);
const char * align = lua_tostring(L,5);

trying to running it!

正在搭环境...

对于我这种基本写什么项目都在windows上用c++ & vs的人来说...面对云老板的这种linux正统范儿的项目，搭环境是一件困难的事，不过还是要搭~毕竟是云老板的2d engine呀.

对于上层开发人员，lua真的能像c++那样得心应手吗？

运行闪退

MinGW下运行后闪退（win7 x64）

$ ej2d.exe examples/ex01.lua
LUA_ERRERR : error in error handling

sprite的rot=450时，画不出来

把examples\ex01.lua的第22行改为

local screencoord = { x = 512, y = 384, scale = 1.2, rot = 450 }

ejoy2d千人QQ讨论群已经建立 QQ群号：119121319

群号119121319

提示如下
...WE Workspaes\Github\ejoy2d\msvc..\ejoy2d\spritepack.lua:291: Invalid stream(19): frame part need an id
stack traceback:
[C]: in function 'import'
...WE Workspaes\Github\ejoy2d\msvc..\ejoy2d\spritepack.lua:291: in function 'init'
...Workspaes\Github\ejoy2d\msvc..\ejoy2d\simplepackage.lua:46: in function 'preload'
...Workspaes\Github\ejoy2d\msvc..\ejoy2d\simplepackage.lua:81: in function 'load'
examples/ex01.lua:5: in function 'f'
[string "local path, script = ......"]:7: in main chunk

如果去掉 4861aaf，就正常了

能否支持c++编译器

主要需要进行两点修改
1.不使用void_的隐式转换
例如char_ p = malloc(xxx);改为char* p = (char*)malloc(xxx);
2.不使用new作为标识符(因为它是c++的关键字)

centos make不成功

gcc -g -Wall -Ilib -D EJOY2D_OS=LINUX -I/usr/include -I/usr/local/include -I/usr/include/freetype2 -o ej2d lib/shader.c lib/lshader.c lib/ejoy2dgame.c lib/fault.c lib/screen.c lib/texture.c lib/ppm.c lib/spritepack.c lib/sprite.c lib/lsprite.c lib/matrix.c lib/lmatrix.c lib/dfont.c lib/label.c lib/particle.c lib/lparticle.c lib/scissor.c posix/window.c posix/winfw.c posix/winfont.c -lGLEW -lGL -lX11 -lfreetype -llua -lm -Wl,-E
/tmp/ccTymNxz.o: In function ldraw': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lshader.c:41: undefined reference tolua_tounsignedx'
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lshader.c:43: undefined reference to luaL_optunsigned' /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lshader.c:46: undefined reference tolua_rawlen'
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lshader.c:58: undefined reference to lua_tonumberx' /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lshader.c:59: undefined reference tolua_tonumberx'
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lshader.c:60: undefined reference to lua_tonumberx' /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lshader.c:61: undefined reference tolua_tonumberx'
/tmp/ccTymNxz.o: In function ejoy2d_shader': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lshader.c:106: undefined reference toluaL_setfuncs'
/tmp/cc7FJCRH.o: In function ejoy2d_framework': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/ejoy2dgame.c:72: undefined reference toluaL_setfuncs'
/tmp/cc7FJCRH.o: In function checkluaversion': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/ejoy2dgame.c:78: undefined reference tolua_version'
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/ejoy2dgame.c:79: undefined reference to lua_version' /tmp/cc7FJCRH.o: In functionejoy2d_game':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/ejoy2dgame.c:97: undefined reference to lua_setglobal' /home/aispeech/test/c_lua/ejoy2d/trunk/lib/ejoy2dgame.c:104: undefined reference toluaL_requiref'
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/ejoy2dgame.c:105: undefined reference to luaL_requiref' /home/aispeech/test/c_lua/ejoy2d/trunk/lib/ejoy2dgame.c:106: undefined reference toluaL_requiref'
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/ejoy2dgame.c:107: undefined reference to luaL_requiref' /home/aispeech/test/c_lua/ejoy2d/trunk/lib/ejoy2dgame.c:108: undefined reference toluaL_requiref'
/tmp/cc7FJCRH.o:/home/aispeech/test/c_lua/ejoy2d/trunk/lib/ejoy2dgame.c:109: more undefined references to luaL_requiref' follow /tmp/cc7FJCRH.o: In functiontraceback':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/ejoy2dgame.c:138: undefined reference to luaL_traceback' /tmp/cc7FJCRH.o: In functionejoy2d_game_start':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/ejoy2dgame.c:150: undefined reference to lua_callk' /tmp/cc7FJCRH.o: In functioncall':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/ejoy2dgame.c:159: undefined reference to lua_pcallk' /tmp/ccgVdHtg.o: In functionsave_rgb':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/ppm.c:372: undefined reference to lua_tointegerx' /home/aispeech/test/c_lua/ejoy2d/trunk/lib/ppm.c:373: undefined reference tolua_tointegerx'
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/ppm.c:390: undefined reference to lua_tointegerx' /home/aispeech/test/c_lua/ejoy2d/trunk/lib/ppm.c:391: undefined reference tolua_tointegerx'
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/ppm.c:392: undefined reference to lua_tointegerx' /tmp/ccgVdHtg.o:/home/aispeech/test/c_lua/ejoy2d/trunk/lib/ppm.c:408: more undefined references tolua_tointegerx' follow
/tmp/ccgVdHtg.o: In function saveppm': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/ppm.c:443: undefined reference tolua_rawlen'
/tmp/ccgVdHtg.o: In function ejoy2d_ppm': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/ppm.c:470: undefined reference toluaL_setfuncs'
/tmp/cczIpTHp.o: In function limport': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/spritepack.c:311: undefined reference tolua_rawlen'
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/spritepack.c:335: undefined reference to lua_tointegerx' /tmp/cczIpTHp.o: In functionlpackcolor':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/spritepack.c:392: undefined reference to luaL_checkunsigned' /tmp/cczIpTHp.o: In functionejoy2d_spritepack':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/spritepack.c:598: undefined reference to luaL_setfuncs' /tmp/cczxPY6I.o: In functionlnewlabel':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:56: undefined reference to luaL_optunsigned' /tmp/cczxPY6I.o: In functionnewsprite':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:125: undefined reference to lua_setuservalue' /tmp/cczxPY6I.o: In functionlsettext':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:304: undefined reference to lua_setuservalue' /tmp/cczxPY6I.o: In functionlgettext':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:315: undefined reference to lua_getuservalue' /tmp/cczxPY6I.o: In functionlgetcolor':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:322: undefined reference to lua_pushunsigned' /tmp/cczxPY6I.o: In functionlsetcolor':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:329: undefined reference to luaL_checkunsigned' /tmp/cczxPY6I.o: In functionlgetadditive':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:337: undefined reference to lua_pushunsigned' /tmp/cczxPY6I.o: In functionlsetadditive':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:344: undefined reference to luaL_checkunsigned' /tmp/cczxPY6I.o: In functionlgetter':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:363: undefined reference to luaL_setfuncs' /tmp/cczxPY6I.o: In functionlsetter':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:381: undefined reference to luaL_setfuncs' /tmp/cczxPY6I.o: In functionlfetch':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:391: undefined reference to lua_getuservalue' /tmp/cczxPY6I.o: In functionlmount':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:405: undefined reference to lua_getuservalue' /tmp/cczxPY6I.o: In functionlmulti_draw':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:474: undefined reference to lua_rawlen' /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:487: undefined reference tolua_tounsignedx'
/tmp/cczxPY6I.o: In function lookup': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:502: undefined reference tolua_getuservalue'
/tmp/cczxPY6I.o: In function lmethod': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:649: undefined reference toluaL_setfuncs'
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:664: undefined reference to luaL_setfuncs' /tmp/cczxPY6I.o: In functionejoy2d_sprite':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lsprite.c:674: undefined reference to luaL_setfuncs' /tmp/cc7Bib02.o: In functionlnew':
/home/aispeech/test/c_lua/ejoy2d/trunk/lib/lmatrix.c:12: undefined reference to lua_rawlen' /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lmatrix.c:16: undefined reference tolua_tointegerx'
/tmp/cc7Bib02.o: In function ejoy2d_matrix': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lmatrix.c:145: undefined reference toluaL_setfuncs'
/tmp/ccZgeI3I.o: In function dict_float': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lparticle.c:12: undefined reference tolua_tonumberx'
/tmp/ccZgeI3I.o: In function dict_int': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lparticle.c:20: undefined reference tolua_tointegerx'
/tmp/ccZgeI3I.o: In function ldata': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lparticle.c:179: undefined reference tolua_pushunsigned'
/tmp/ccZgeI3I.o: In function ejoy2d_particle': /home/aispeech/test/c_lua/ejoy2d/trunk/lib/lparticle.c:197: undefined reference toluaL_setfuncs'
/tmp/cc8IUseh.o: In function traceback': /home/aispeech/test/c_lua/ejoy2d/trunk/posix/winfw.c:43: undefined reference toluaL_traceback'
/tmp/cc8IUseh.o: In function ejoy2d_win_init': /home/aispeech/test/c_lua/ejoy2d/trunk/posix/winfw.c:95: undefined reference tolua_pcallk'
collect2: ld returned 1 exit status
make: *** [ej2d] Error 1

lua安装的是5.2.3版本，其他依赖组建也已安装。

mac 能否布置环境

mac 能否布置环境风云大哥

windows下计算exe所在路径有问题

argv[0]不一定是完整路径，建议通过GetModuleFileName获取

lmatrix.c中的ltrans方法，内部将x，y值分别乘以8，这里是否应该乘上SCREEN_SCALE这个值？

一个相对游戏开发来讲较弱的需求

希望能够在shader中提供一些绘制点、线、多边形、圆形等接口，虽然这些功能对于游戏来说很少用到，不过既然是一套图形引擎，那提供这些方法应该也是合理的，另外这些接口对于应用开发来说很重要。

ejoy2d中如何实现树状结构？

类似Unity和cocos2dx中，对一个节点做变换，子节点也会跟着变，这样做UI和tween动画比较方便。
资源文件中animation是写死的，如果想在程序中动态生成应该怎么做呢，能否提供一些实现思路，谢谢。

在我机器上启动ejoy2d.exe必挂！

我这个诡异的问题:启动ejoy2d.exe会挂一直在我机器上没解决呢

运行到这行必挂在我机器上我win7 64位的系统感觉是和opengl有关

ios 字体问题

_gen_glyph 出错 w,h 为 NULL

screen.c中，screen_init方法里面SCREEN.invw = 2.0f / SCREEN_SCALE / w;是否应该把常亮2.0f替换成scale？

编译成功，但是测试自带脚本时没有任何反应

编译成功，已生成ej2d.exe,但是测试自带脚本时没有任何反应。。。原因不明。。能不能加个console，提示哪里出了问题。。系统winxp~~mingw编译

ej2d.exe error

C:\ejoy2d>ej2d.exe examples/ex01.lua
[string "local path, script = ......"]:4: attempt to concatenate local 'path' (
nil value)
stack traceback:
[string "local path, script = ......"]:4: in main chunk

window 7 64

thanks

the source still use the system Lua lib header files

since we embed the Lua lib, we should include the header files like this:

#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"

Ubuntu 14.04编译异常

发现一个问题,链接时有几个函数找不到:
/tmp/ccGBYpaA.o：在函数‘os_tmpname’中：
/home/sxf/data/workspace/Game/ejoy2d/lua/loslib.c:140: 警告： the use of tmpnam' is dangerous, better usemkstemp'
/tmp/ccfHosBu.o：在函数‘render_buffer_update’中：
/home/sxf/data/workspace/Game/ejoy2d/lib/render/render.c:175：对‘glBindVertexArrayOES’未定义的引用
/tmp/ccfHosBu.o：在函数‘render_shader_create’中：
/home/sxf/data/workspace/Game/ejoy2d/lib/render/render.c:329：对‘glGenVertexArraysOES’未定义的引用
/tmp/ccfHosBu.o：在函数‘close_shader’中：
/home/sxf/data/workspace/Game/ejoy2d/lib/render/render.c:346：对‘glDeleteVertexArraysOES’未定义的引用
/tmp/ccfHosBu.o：在函数‘apply_va’中：
/home/sxf/data/workspace/Game/ejoy2d/lib/render/render.c:549：对‘glBindVertexArrayOES’未定义的引用

好像跟OpenGL 1和2的不同实现有关, 我找到了许多类似错误的修正提示但依旧没有效果, 希望能获得帮助,谢谢!

make出错

链接官方的glew32.dll报格式不匹配
链接自己用vs2012编译的glew32.dll报下面这个错误

F:\Download\ejoy2d-master>make mingw
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
gcc -g -Wall -Ilib -D EJOY2D_OS=WINDOWS -IF:/Download/glew-1.10.0/include -IF:/D
ownload/lua-5.2.3/src -o ej2d.exe lib/shader.c lib/lshader.c lib/ejoy2dgame.c li
b/fault.c lib/screen.c lib/texture.c lib/ppm.c lib/spritepack.c lib/sprite.c lib
/lsprite.c lib/matrix.c lib/lmatrix.c lib/dfont.c lib/label.c lib/particle.c lib
/lparticle.c lib/scissor.c mingw/window.c mingw/winfw.c mingw/winfont.c -L"C:/Pr
ogram Files (x86)/Windows Kits/8.0/Lib/win8/um/x86" -lgdi32 -LF:/Download/glew-1
.10.0/bin/Release/Win32 -lglew32 -L"C:/Program Files (x86)/Windows Kits/8.0/Lib/
win8/um/x86" -lopengl32 -LF:/Download/lua-5.2.3/src -llua52
C:\Users\ADMINI~1\AppData\Local\Temp\ccqFl6OH.o: In function init_window': F:\Download\ejoy2d-master/mingw/window.c:49: undefined reference to_imp__glewI
nit@0'
collect2.exe: error: ld returned 1 exit status
Makefile:64: recipe for target 'ej2d' failed
make: *** [ej2d] Error 1

macosx编译有warning

mbp:ejoy2d jintiao$ make
gcc -g -Wall -Ilib -Ilib/render -Ilua -D EJOY2D_OS=MACOSX -I/usr/X11R6/include -I/usr/include -I/opt/X11/include/freetype2 -D MACOSX -o ej2d lib/shader.c lib/lshader.c lib/ejoy2dgame.c lib/fault.c lib/screen.c lib/texture.c lib/ppm.c lib/spritepack.c lib/sprite.c lib/lsprite.c lib/matrix.c lib/lmatrix.c lib/dfont.c lib/label.c lib/particle.c lib/lparticle.c lib/scissor.c lib/renderbuffer.c lib/lrenderbuffer.c lib/lgeometry.c lib/render/render.c lib/render/carray.c lib/render/log.c posix/window.c posix/winfw.c posix/winfont.c lua/lapi.c lua/lauxlib.c lua/lbaselib.c lua/lbitlib.c lua/lcode.c lua/lcorolib.c lua/lctype.c lua/ldblib.c lua/ldebug.c lua/ldo.c lua/ldump.c lua/lfunc.c lua/lgc.c lua/linit.c lua/liolib.c lua/llex.c lua/lmathlib.c lua/lmem.c lua/loadlib.c lua/lobject.c lua/lopcodes.c lua/loslib.c lua/lparser.c lua/lstate.c lua/lstring.c lua/lstrlib.c lua/ltable.c lua/ltablib.c lua/ltm.c lua/lundump.c lua/lutf8lib.c lua/lvm.c lua/lzio.c -L/usr/X11R6/lib -lGLEW -lGL -lX11 -lfreetype -lm -ldl
lib/lgeometry.c:55:6: warning: using integer absolute value function 'abs' when
argument is of floating point type [-Wabsolute-value]
if (abs(x1-x2) > abs(y1-y2)) {
^
lib/lgeometry.c:55:6: note: use function 'fabsf' instead
if (abs(x1-x2) > abs(y1-y2)) {
^~~
fabsf
lib/lgeometry.c:55:19: warning: using integer absolute value function 'abs' when
argument is of floating point type [-Wabsolute-value]
if (abs(x1-x2) > abs(y1-y2)) {
^
lib/lgeometry.c:55:19: note: use function 'fabsf' instead
if (abs(x1-x2) > abs(y1-y2)) {
^~~
fabsf
2 warnings generated.
lib/render/render.c:947:14: warning: comparison of constant 2 with expression of type
'enum DRAW_MODE' is always true [-Wtautological-constant-out-of-range-compare]
assert(mode < sizeof(draw_mode)/sizeof(int));
~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/assert.h:93:25: note: expanded from macro 'assert'
(__builtin_expect(!(e), 0) ? __assert_rtn(__func, FILE, LINE, #e...
^
1 warning generated.
mbp:ejoy2d jintiao$ gcc -v
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
Target: x86_64-apple-darwin14.4.0
Thread model: posix

Compile error in my ubuntu 14 enviroment.

lib/shader.c: In function ‘shader_init’:
lib/shader.c:23:27: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]

define BUFFER_OFFSET(f) ((int)&(((struct vertex *)NULL)->f))

^
lib/shader.c:102:38: note: in expansion of macro ‘BUFFER_OFFSET’
{ "position", 0, 2, sizeof(float), BUFFER_OFFSET(vp.vx) },

My gcc verion is gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)

在Mac OS X 下使用Makefile编译不过

posix/winfw.c:78:10: warning: unused variable 'buf' [-Wunused-variable]
char buf[BUFSIZE];
^
1 warning generated.
ld: unknown option: -E
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [ej2d] Error 1

我的解决方法是，去掉macosx下的链接选项，-E, 也去掉了选项-Wl,
-Wl 选项保留的话，会有警告。
warning: unknown warning option '-Wl' [-Wunknown-warning-option]

也就是将，macosx: LDFLAGS修改成
macosx : LDFLAGS += -L/usr/X11R6/lib -lGLEW -lGL -lX11 -lfreetype -llua -lm -ldl

Ubuntu 64位,编译成功,运行报错,窗口闪退

控制台输出如下:
compile failed:0:1(1): error: syntax error, unexpected NEW_IDENTIFIER
source:
precision lowp float;
varying vec2 v_texcoord;
varying vec4 v_color;
uniform sampler2D texture0;
uniform vec3 additive;

void main() {
vec4 tmp = texture2D(texture0, v_texcoord);
gl_FragColor.xyz = tmp.xyz * v_color.xyz;
gl_FragColor.w = tmp.w;
gl_FragColor *= v_color.w;
gl_FragColor.xyz += additive.xyz * tmp.w;
}

求助.谢谢.

能否为geometry绘制添加srt参数

最近加入的geometry能否绘制的时候加入srt参数，因为我用在绘制战棋的地表阴影，需要有和sprite一样的变换

在Mac OS X下运行examples/ex01.lua失败

我用命令./ej2d examples/ex01.lua运行，会失败
失败时显示cannot find glyph 10

调试进去，ex01.lua有行脚本为
obj2.label.text = string.format("AABB\n%d x %d", x2-x1, y2-y1)

这行脚本需要绘画字符串，绘画时候会调用label.c文件的label_draw函数，最终会调用winfont.c文件下的font_size函数，当字符为\n，也就是unicode为10的时候，
FT_Get_Char_Index返回0，之后，就打印出错误信息然后退出了。

一个文档的错误

id 的管理工作交给使用者，如果使用 simplepackage 模块的话，它会简单的为所有加载的包分配贴图 id 。所以 不建议 联合使用 simplepackage 和 ppm.texture ，除非你知道如何确切的管理贴图 id 。

按我的理解，这里应该是建议？

#define ⇒ enum?

Would you like to replace more defines for constant values by enumerations to stress their relationships?

ubuntu 13.04 make 报错 glew1.10

换了系统，以前的12.04能编过了，但是系统坏了，又开始配置，但是glu.h 找不到，下了一个放在 include 了

/usr/include/GL/glu.h:263:87: error: expected ‘)’ before ‘’ token
/usr/include/GL/glu.h:274:91: error: expected ‘)’ before ‘’ token
/usr/include/GL/glu.h:283:91: error: expected ‘)’ before ‘*’ token

就是几个函数申明：
263：extern void APIENTRY gluNurbsCallback (GLUnurbs* nurb, GLenum which, GLvoid (CALLBACK CallBackFunc)());
274：extern void APIENTRY gluQuadricCallback (GLUquadric quad, GLenum which, GLvoid (CALLBACK CallBackFunc)());
283：extern void APIENTRY gluTessCallback (GLUtesselator tess, GLenum which, GLvoid (CALLBACK *CallBackFunc)());

有碰见过的吗？我不是太看的出来问题在哪里。。

Android platform support.

Is there any plan to support Android?

如果进程的当前目录不是exe所在目录，会出错

第一个错误在simplepackage.lua:40
我想这里需要指定完整路径，或者统一修改下当前目录？

矩阵乘法乘反了

先确认一点哈，假设有矩阵：

| a b c |
| d e f |

那么他们对应的数组下标是：
a: 0, d: 1, b: 2, e: 3, c: 4, f: 5

如果上面的假设是正确的，那么：

https://github.com/cloudwu/ejoy2d/blob/8667d3edb86e7787d159ee545441c82254694f9a/lib/matrix.h#L8

中矩阵的乘法计算的貌似是 mm2 * mm1，而不是 mm1 * mm2。

ios未设置系统默认字体

make不过

确定了glew1.9版本，也确定了lib的位置
make的时候还总报
好郁闷。

J:\Project\ejoy2d/lib/shader.c:58: undefined reference to __glewGenBuffers' J:\Project\ejoy2d/lib/shader.c:59: undefined reference to__glewBindBuffer'
J:\Project\ejoy2d/lib/shader.c:72: undefined reference to __glewBufferData' J:\Project\ejoy2d/lib/shader.c:74: undefined reference to__glewGenBuffers'
J:\Project\ejoy2d/lib/shader.c:75: undefined reference to __glewBindBuffer' c:\Users\xhacker\AppData\Local\Temp\ccabdE7p.o: In functioncompile':
J:\Project\ejoy2d/lib/shader.c:86: undefined reference to __glewCreateShader' J:\Project\ejoy2d/lib/shader.c:87: undefined reference to__glewShaderSource'
J:\Project\ejoy2d/lib/shader.c:88: undefined reference to __glewCompileShader' J:\Project\ejoy2d/lib/shader.c:90: undefined reference to__glewGetShaderiv'
J:\Project\ejoy2d/lib/shader.c:95: undefined reference to __glewGetShaderInfoLog' J:\Project\ejoy2d/lib/shader.c:100: undefined reference to__glewDeleteShader'
c:\Users\xhacker\AppData\Local\Temp\ccabdE7p.o: In function `link':

在ubuntu下make编译，发现一个bug

系统环境： ubuntu13.10

在编译的时候，报错
/usr/bin/ld: /usr/local/lib/liblua.a(loadlib.o): undefined reference to symbol 'dlclose@@GLIBC_2.2.5'
/lib/x86_64-linux-gnu/libdl.so.2: error adding symbols: DSO missing from command line

然后，在makefile中加入了 -ldl 这句话，就好使了。
似乎只是一个未链接库的问题。

Mac OS X 下编译时不支持通过 Homebrew 安装的 freetype2

gcc -g -Wall -Ilib -D EJOY2D_OS=MACOSX -I/usr/X11R6/include -I/usr/include -I/usr/local/include -I/usr/local/Cellar/freetype/2.5.2/include/freetype2 -D __MACOSX -o ej2d lib/shader.c lib/lshader.c lib/ejoy2dgame.c lib/fault.c lib/screen.c lib/texture.c lib/ppm.c lib/spritepack.c lib/sprite.c lib/lsprite.c lib/matrix.c lib/lmatrix.c lib/dfont.c lib/label.c lib/particle.c lib/lparticle.c lib/scissor.c posix/window.c posix/winfw.c posix/winfont.c -L/usr/X11R6/lib  -lGLEW -lGL -lX11 -lfreetype -llua -lm -Wl,-E -ldl
In file included from posix/winfont.c:7:
/usr/X11R6/include/ft2build.h:56:10: fatal error: 'freetype/config/ftheader.h' file not found
#include <freetype/config/ftheader.h>
         ^
1 error generated.
make: *** [ej2d] Error 1

需要添加一个软链接： ln -s /usr/local/include/freetype2 /usr/local/include/freetype

Fedora20 Compiler is OK!!But....

err(1): set your own vector font resource path, error occured in file posix/winfont.c, line 72

 have a look at fterrdef.h

When I try to run ex01.lua,this error happens!!!I hope this problem can be solve soon!!

windows下编译一些问题

环境什么的都配置好了，出现下面错误呢
enjoy/lib/shader.c :60:undefined reference to '_imp____glewGenBuffer'
enjoy/lib/shader.c :61:undefined reference to '_imp____glewBindBuffer'
enjoy/lib/shader.c :76:undefined reference to '_imp____glewGenBuffer'
......
求助一下哈~

mac os 10.9 编译通不过

步骤：

Install XQuartz （http://xquartz.macosforge.org/downloads/SL/XQuartz-2.7.5.dmg）
$ brew install lua52 glew freetype
make
出现以下错误

posix/winfw.c:78:10: warning: unused variable 'buf' [-Wunused-variable]
char buf[BUFSIZE];
^
1 warning generated.
In file included from posix/winfont.c:7:
/usr/X11R6/include/ft2build.h:56:10: fatal error: 'freetype/config/ftheader.h' file not found

include <freetype/config/ftheader.h>

1 error generated.

双屏显示器的问题

我是双显示器，在WIN7(64位) 执行实例1，例子一下占了2个屏，黑乎乎一片，刷新下桌面才恢复。

windows下基于timer的刷新不可靠

UpdateWindow之后是不是应该用如下代码刷新：
MSG msg;
while (1)
{
if (! PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
ejoy2d_win_update();
InvalidateRect(wnd, NULL , FALSE);
if (WM_QUIT == msg.message)
{
break;
}
continue;
}
TranslateMessage(&msg);
DispatchMessage(&msg);
}

在我的机器上（Win7, Intel i3）上动画不能正常播放。

WM_TIMER和WM_PAINT控制帧率的问题

windows下通过WM_TIMER和WM_PAINT控制帧率很貌似很不精确，update按道理是30fps，实际测试只有20左右。

ejoy2d在mac os x 使用xcode编译问题。

问题，修改了xcodeproj后，编译通过，X windows也能起来。运行的时候遇到如下问题。

以下是设置的截图：

linux mint下运行ej2d关闭窗口时XIO报错

错误信息如下：
XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0"
after 6922 requests (6909 known processed) with 0 events remaining.
看上去不是一个很要紧的问题，我提问的目的是想确定是我的系统问题还是ej2d的问题。谢谢。

label怎么支持字体背景色

我希望显示字体的时候加上背景色，现有的代码似乎是不支持的，想到的办法，是创建一个空的sprite，把label作为子节点，能包含的应该只有ani类型，貌似不合适的，有什么办法吗，另外TYPE_PANNEL类型是怎么用的？

linux下运行黑屏，没看到图片

环境：deepinlinux
编译报错：
gcc -g -Wall -Ilib -I/usr/include -I/usr/local/include -I/usr/include/freetype2 -o ej2d lib/shader.c lib/lshader.c lib/ejoy2dgame.c lib/fault.c lib/screen.c lib/texture.c lib/ppm.c lib/spritepack.c lib/sprite.c lib/lsprite.c lib/matrix.c lib/lmatrix.c lib/dfont.c lib/label.c lib/particle.c linux/window.c linux/winfw.c linux/winfont.c -lGLEW -lGL -lX11 -lfreetype -llua -lm -lrt
/usr/bin/ld: /usr/local/lib/liblua.a(loadlib.o): undefined reference to symbol 'dlclose@@GLIBC_2.2.5'
/usr/bin/ld: note: 'dlclose@@GLIBC_2.2.5' is defined in DSO /lib/x86_64-linux-gnu/libdl.so.2 so try adding it to the linker command line
/lib/x86_64-linux-gnu/libdl.so.2: could not read symbols: 无效的操作
collect2: 错误： ld 返回 1
make: *** [ej2d] 错误 1
然后从网上找到解决办法：添加-ldl.
gcc -g -Wall -Ilib -I/usr/include -I/usr/local/include -I/usr/include/freetype2 -o ej2d lib/shader.c lib/lshader.c lib/ejoy2dgame.c lib/fault.c lib/screen.c lib/texture.c lib/ppm.c lib/spritepack.c lib/sprite.c lib/lsprite.c lib/matrix.c lib/lmatrix.c lib/dfont.c lib/label.c lib/particle.c linux/window.c linux/winfw.c linux/winfont.c -lGLEW -lGL -lX11 -lfreetype -llua -lm -ldl
编译成功，但是运行黑色的。。。
ctrl+C关闭后，报错。
XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0"
after 1109 requests (1109 known processed) with 0 events remaining.

ejoy / ejoy2d Goto Github PK

ejoy2d's Issues

include <lua.h>

include <lauxlib.h>

include <lualib.h>

define BUFFER_OFFSET(f) ((int)&(((struct vertex *)NULL)->f))

include <freetype/config/ftheader.h>

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