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restructured events a bit for efficiency

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git-svn-id: svn://anubis/anaglym/trunk@110 99a6e188-d820-4881-8870-2d33a10e2619
This commit is contained in:
Josh Holtrop 2009-10-19 18:58:46 +00:00
parent 3aa41bedd8
commit 978293a57e
2 changed files with 68 additions and 18 deletions
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74
Engine.cc
View File

@ -16,6 +16,10 @@
#include <GL/glu.h>
using namespace std;
#define checkForFunction(lua_name, event) \
checkForFunctionFull(lua_name, #event, m_event_ ## event ## _present)
#define AG_EVENT_PREFIX "__ag_event_"
Engine * g_engine;
SDL_Event Engine::userEvent;
@ -45,6 +49,13 @@ Engine::Engine(const string & path)
/* setup redraw SDL event structure */
userEvent.type = SDL_USEREVENT;
userEvent.user.code = 0;
m_event_update_present = false;
m_event_key_pressed_present = false;
m_event_key_released_present = false;
m_event_mousebutton_pressed_present = false;
m_event_mousebutton_released_present = false;
m_event_mouse_motion_present = false;
}
Engine::~Engine()
@ -90,6 +101,13 @@ bool Engine::load(const char * program)
return false;
}
checkForFunction("update_event", update);
checkForFunction("key_pressed_event", key_pressed);
checkForFunction("key_released_event", key_released);
checkForFunction("mousebutton_pressed_event", mousebutton_pressed);
checkForFunction("mousebutton_released_event", mousebutton_released);
checkForFunction("mouse_motion_event", mouse_motion);
return true;
}
@ -298,10 +316,10 @@ void Engine::run()
{
goto RET;
}
key_event(event.key.keysym.sym, true);
key_pressed_event(event.key.keysym.sym);
break;
case SDL_KEYUP:
key_event(event.key.keysym.sym, false);
key_released_event(event.key.keysym.sym);
break;
case SDL_QUIT:
goto RET;
@ -325,17 +343,14 @@ void Engine::update()
doPhysics();
if (m_autoStartFrame)
startFrame();
lua_getfield(m_luaState, LUA_GLOBALSINDEX, "update_event");
if (lua_type(m_luaState, -1) == LUA_TFUNCTION)
if (m_event_update_present)
{
lua_getfield(m_luaState, LUA_GLOBALSINDEX,
AG_EVENT_PREFIX "update_event");
/* call the update function - pops the function ref from the stack */
int s = lua_pcall(m_luaState, 0, LUA_MULTRET, 0);
reportErrors(s);
}
else
{
lua_pop(m_luaState, 1);
}
if (m_autoDrawObjects)
drawObjects();
if (m_autoEndFrame)
@ -343,25 +358,50 @@ void Engine::update()
m_drawing = false;
}
void Engine::key_event(int keysym, bool pressed)
void Engine::key_pressed_event(int keysym)
{
if (pressed)
m_keysDown[sdl_keymap[keysym]] = true;
else
m_keysDown.erase(sdl_keymap[keysym]);
lua_getfield(m_luaState, LUA_GLOBALSINDEX,
pressed ? "key_pressed_event" : "key_released_event");
if (lua_type(m_luaState, -1) == LUA_TFUNCTION)
m_keysDown[sdl_keymap[keysym]] = true;
if (m_event_key_pressed_present)
{
lua_getfield(m_luaState, LUA_GLOBALSINDEX,
AG_EVENT_PREFIX "key_pressed");
lua_pushstring(m_luaState, sdl_keymap[keysym]);
/* call the key_event function
/* call the key pressed event function
* This pops the function ref and arguments from the stack */
int s = lua_pcall(m_luaState, 1, LUA_MULTRET, 0);
reportErrors(s);
}
}
void Engine::key_released_event(int keysym)
{
m_keysDown.erase(sdl_keymap[keysym]);
if (m_event_key_pressed_present)
{
lua_getfield(m_luaState, LUA_GLOBALSINDEX,
AG_EVENT_PREFIX "key_released");
lua_pushstring(m_luaState, sdl_keymap[keysym]);
/* call the key released event function
* This pops the function ref and arguments from the stack */
int s = lua_pcall(m_luaState, 1, LUA_MULTRET, 0);
reportErrors(s);
}
}
void Engine::checkForFunctionFull(const std::string & lua_fn_name,
const std::string & event_name, bool & presentFlag)
{
lua_getfield(m_luaState, LUA_GLOBALSINDEX, lua_fn_name.c_str());
if (lua_isfunction(m_luaState, -1))
{
lua_setfield(m_luaState, LUA_GLOBALSINDEX,
(AG_EVENT_PREFIX + event_name).c_str());
presentFlag = true;
}
else
{
lua_pop(m_luaState, 1);
presentFlag = false;
}
}

12
Engine.h
View File

@ -117,12 +117,15 @@ class Engine
void registerLibraries();
bool fileExists(const std::string & path);
void update();
void key_event(int keysym, bool pressed);
void key_pressed_event(int keysym);
void key_released_event(int keysym);
Object * createObject(bool is_static, GLuint display_list,
float scale = 1.0f)
{
return new Object(is_static, m_world, display_list, scale);
}
void checkForFunctionFull(const std::string & lua_fn_name,
const std::string & event_name, bool & presentFlag);
TextureCache m_textureCache;
EngineFileLoader * m_fileLoader;
@ -141,6 +144,13 @@ class Engine
bool m_autoEndFrame;
bool m_autoDrawObjects;
std::map<std::string, bool> m_keysDown;
bool m_event_update_present;
bool m_event_key_pressed_present;
bool m_event_key_released_present;
bool m_event_mousebutton_pressed_present;
bool m_event_mousebutton_released_present;
bool m_event_mouse_motion_present;
};
extern Engine * g_engine;