main.cpp

   1 //Lua Game Engine Framework
   2 //WIP
   3
   4 #include <iostream>
   5 #include <list>
   6 #include "lua.hpp"
   7 #include "SDL/SDL.h"
   8 #include "globals.h"
   9 #include "funcs.h"
  10 #include "funcs_input.h"
  11 #include "funcs_video.h"
  12 #include "funcs_sound.h"
  13 #include "funcs_font.h"
  14
  15 using namespace std;
  16
  17 int main(int argc, char *argv[]){
  18
  19     //init Lua
  20     lua_State *L = luaL_newstate();
  21     luaL_openlibs(L);
  22
  23     //init SDL
  24     SDL_Init(SDL_INIT_EVERYTHING);
  25
  26     //initialize audio
  27     SoundEngine::open();
  28
  29     //initialize fonts
  30     TTF_Init();
  31
  32     //load up configuration file and create screen surface
  33     screen = load_config(L);
  34     if(!screen){ //die
  35       cerr << "Error: Cannot create video surface. \n";
  36       SDL_Quit();
  37       lua_close(L);
  38       return 1;
  39     }
  40
  41     //register functions with lua
  42     lua_pushcfunction(L, l_getimage);
  43     lua_setglobal(L, "get_image");
  44
  45     lua_pushcfunction(L, l_releaseimage);
  46     lua_setglobal(L, "release_image");
  47
  48     lua_pushcfunction(L, l_flip);
  49     lua_setglobal(L, "update_screen");
  50
  51     lua_pushcfunction(L, l_blit);
  52     lua_setglobal(L, "blit");
  53
  54     lua_pushcfunction(L, l_blitframe);
  55     lua_setglobal(L, "blit_frame");
  56
  57     lua_pushcfunction(L, l_mouse_state);
  58     lua_setglobal(L, "mouse_state");
  59
  60     lua_pushcfunction(L, l_show_cursor);
  61     lua_setglobal(L, "show_cursor");
  62
  63     lua_pushcfunction(L, l_fill_screen);
  64     lua_setglobal(L, "fill_screen");
  65
  66     lua_pushcfunction(L, l_delete_image);
  67     lua_setglobal(L, "delete_image");
  68
  69     lua_pushcfunction(L, l_rotzoom);
  70     lua_setglobal(L, "rotzoom");
  71
  72     lua_pushcfunction(L, l_playsample);
  73     lua_setglobal(L, "play_sample");
  74
  75     lua_pushcfunction(L, l_playmusic);
  76     lua_setglobal(L, "play_music");
  77
  78     lua_pushcfunction(L, l_stopmusic);
  79     lua_setglobal(L, "stop_music");
  80
  81     lua_pushcfunction(L, l_load_font);
  82     lua_setglobal(L, "load_font");
  83
  84     lua_pushcfunction(L, l_close_font);
  85     lua_setglobal(L, "unload_font");
  86
  87     lua_pushcfunction(L, l_font_string_metrics);
  88     lua_setglobal(L, "rendered_string_size");
  89
  90     lua_pushcfunction(L, l_render_string);
  91     lua_setglobal(L, "render_string");
  92
  93     lua_pushcfunction(L, l_get_event);
  94     lua_setglobal(L, "get_event");
  95
  96     lua_pushcfunction(L, l_getticks);
  97     lua_setglobal(L, "get_ticks");
  98
  99     lua_pushcfunction(L, l_delay);
 100     lua_setglobal(L, "delay");
 101
 102     lua_pushcfunction(L, l_num_joysticks);
 103     lua_setglobal(L, "num_joysticks");
 104
 105     //force joystick event handling on
 106     SDL_JoystickEventState(SDL_ENABLE);
 107
 108     //open up all available joysticks
 109     std::list<SDL_Joystick*> joystick_list;
 110     for(int i=0; i < SDL_NumJoysticks(); i++){
 111         joystick_list.push_back(SDL_JoystickOpen(i));
 112         std::cout << "Opened Joystick: " << SDL_JoystickName(i) << std::endl;
 113     }
 114
 115     //load up the main script into the lua environment
 116     //and make it all happen
 117     int error_main = luaL_loadfile(L, "base/init.lua") ||
 118         lua_pcall(L, 0, 0, 0);
 119
 120     if ( error_main) { // die a horrible death b/c we can't run without that file
 121         cerr << lua_tostring(L, -1) << "\n";
 122         lua_pop(L,1);
 123
 124         //close any opened joysticks
 125         for(std::list<SDL_Joystick*>::iterator it=joystick_list.begin(); it != joystick_list.end(); it++){
 126             SDL_JoystickClose(*it);
 127         }
 128
 129         //end it all
 130         TTF_Quit();
 131         SoundEngine::close();
 132         clear_images();
 133         SDL_Quit();
 134         lua_close(L);
 135         return 1;
 136     }
 137
 138     //close any opened joysticks
 139     for(std::list<SDL_Joystick*>::iterator it=joystick_list.begin(); it != joystick_list.end(); it++){
 140         SDL_JoystickClose(*it);
 141     }
 142
 143
 144     //end fonts
 145     TTF_Quit();
 146
 147     //close audio
 148     SoundEngine::close();
 149
 150     //cleanup image store
 151     clear_images();
 152
 153     //kill sdl
 154     SDL_Quit();
 155
 156     //kill lua
 157     lua_close(L);
 158
 159     return 0;
 160 }