src/main.c

   1 #include <SDL2/SDL.h>
   2 #include <SDL2/SDL_mixer.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <time.h>
   6
   7 #include "game.h"
   8 #include "game/level/platforms.h"
   9 #include "game/level/player.h"
  10 #include "game/sound_samples.h"
  11 #include "math/point.h"
  12 #include "system/error.h"
  13 #include "system/lt.h"
  14
  15 #define SCREEN_WIDTH 800
  16 #define SCREEN_HEIGHT 600
  17 #define GAME_FPS 60
  18
  19 /* LT module adapter for Mix_CloseAudio */
  20 static void Mix_CloseAudio_lt(void* ignored)
  21 {
  22     (void) ignored;
  23     Mix_CloseAudio();
  24 }
  25
  26 /* LT module adapter for SDL_Quit */
  27 static void SDL_Quit_lt(void* ignored)
  28 {
  29     (void) ignored;
  30     SDL_Quit();
  31 }
  32
  33 static void print_usage(FILE *stream)
  34 {
  35     fprintf(stream, "Usage: nothing <level-file>\n");
  36 }
  37
  38 int main(int argc, char *argv[])
  39 {
  40     srand((unsigned int) time(NULL));
  41
  42     lt_t *const lt = create_lt();
  43
  44     if (argc < 2) {
  45         print_usage(stderr);
  46         RETURN_LT(lt, -1);
  47     }
  48
  49     if (SDL_Init(SDL_INIT_EVERYTHING) < 0) {
  50         print_error_msg(ERROR_TYPE_SDL2, "Could not initialize SDL");
  51         RETURN_LT(lt, -1);
  52     }
  53     PUSH_LT(lt, 42, SDL_Quit_lt);
  54
  55     SDL_ShowCursor(SDL_DISABLE);
  56
  57     SDL_Window *const window = PUSH_LT(
  58         lt,
  59         SDL_CreateWindow(
  60             "Nothing",
  61             100, 100,
  62             SCREEN_WIDTH, SCREEN_HEIGHT,
  63             SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE),
  64         SDL_DestroyWindow);
  65
  66     if (window == NULL) {
  67         print_error_msg(ERROR_TYPE_SDL2, "Could not create SDL window");
  68         RETURN_LT(lt, -1);
  69     }
  70
  71     SDL_Renderer *const renderer = PUSH_LT(
  72         lt,
  73         SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC),
  74         SDL_DestroyRenderer);
  75     if (renderer == NULL) {
  76         print_error_msg(ERROR_TYPE_SDL2, "Could not create SDL renderer");
  77         RETURN_LT(lt, -1);
  78     }
  79     if (SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND) < 0) {
  80         print_error_msg(ERROR_TYPE_SDL2, "Could not set up blending mode for the renderer");
  81         RETURN_LT(lt, -1);
  82     }
  83
  84     SDL_Joystick *the_stick_of_joy = NULL;
  85
  86     if (SDL_NumJoysticks() > 0) {
  87         the_stick_of_joy = PUSH_LT(lt, SDL_JoystickOpen(0), SDL_JoystickClose);
  88
  89         if (the_stick_of_joy == NULL) {
  90             print_error_msg(ERROR_TYPE_SDL2, "Could not open 0th Stick of the Joy: %s\n");
  91             RETURN_LT(lt, -1);
  92         }
  93
  94         printf("Opened Joystick 0\n");
  95         printf("Name: %s\n", SDL_JoystickNameForIndex(0));
  96         printf("Number of Axes: %d\n", SDL_JoystickNumAxes(the_stick_of_joy));
  97         printf("Number of Buttons: %d\n", SDL_JoystickNumButtons(the_stick_of_joy));
  98         printf("Number of Balls: %d\n", SDL_JoystickNumBalls(the_stick_of_joy));
  99
 100         SDL_JoystickEventState(SDL_ENABLE);
 101     } else {
 102         fprintf(stderr, "[WARNING] Could not find any Sticks of the Joy\n");
 103     }
 104
 105     if (Mix_OpenAudio(
 106             MIX_DEFAULT_FREQUENCY,
 107             MIX_DEFAULT_FORMAT,
 108             2,
 109             1024) < 0) {
 110         print_error_msg(ERROR_TYPE_SDL2_MIXER, "Could not initialize the audio\n");
 111         RETURN_LT(lt, -1);
 112     }
 113     PUSH_LT(lt, 42, Mix_CloseAudio_lt);
 114
 115     // ------------------------------
 116
 117     const char * sound_sample_files[] = {
 118         "./sounds/nothing.wav",
 119         "./sounds/something.wav"
 120     };
 121     const size_t sound_sample_files_count = sizeof(sound_sample_files) / sizeof(char*);
 122
 123     game_t *const game = PUSH_LT(
 124         lt,
 125         create_game(
 126             argv[1],
 127             sound_sample_files,
 128             sound_sample_files_count,
 129             renderer),
 130         destroy_game);
 131     if (game == NULL) {
 132         print_current_error_msg("Could not create the game object");
 133         RETURN_LT(lt, -1);
 134     }
 135
 136     const Uint8 *const keyboard_state = SDL_GetKeyboardState(NULL);
 137     const float delay_ms = 1.0f / GAME_FPS;
 138     SDL_Event e;
 139     while (!game_over_check(game)) {
 140         while (!game_over_check(game) && SDL_PollEvent(&e)) {
 141             if (game_event(game, &e) < 0) {
 142                 print_current_error_msg("Failed handling event");
 143                 RETURN_LT(lt, -1);
 144             }
 145         }
 146
 147         if (game_input(game, keyboard_state, the_stick_of_joy) < 0) {
 148             print_current_error_msg("Failed handling input");
 149             RETURN_LT(lt, -1);
 150         }
 151
 152         if (game_render(game) < 0) {
 153             print_current_error_msg("Failed rendering the game");
 154             RETURN_LT(lt, -1);
 155         }
 156
 157         if (game_update(game, delay_ms) < 0) {
 158             print_current_error_msg("Failed handling updating");
 159             RETURN_LT(lt, -1);
 160         }
 161
 162         if (game_sound(game) < 0) {
 163             print_current_error_msg("Failed handling the sound");
 164             RETURN_LT(lt, -1);
 165         }
 166     }
 167
 168     RETURN_LT(lt, 0);
 169 }