2 #include <SDL2/SDL_mixer.h>
10 #include "game/level/platforms.h"
11 #include "game/level/player.h"
12 #include "game/sound_samples.h"
13 #include "math/minmax.h"
14 #include "math/point.h"
15 #include "system/error.h"
16 #include "system/lt.h"
17 #include "system/lt/lt_adapters.h"
19 #define SCREEN_WIDTH 800
20 #define SCREEN_HEIGHT 600
22 static void print_usage(FILE *stream)
24 fprintf(stream, "Usage: nothing [--fps <fps>] <level-file>\n");
27 int main(int argc, char *argv[])
29 srand((unsigned int) time(NULL));
31 lt_t *const lt = create_lt();
33 char *level_filename = NULL;
36 for (int i = 1; i < argc;) {
37 if (strcmp(argv[i], "--fps") == 0) {
39 if (sscanf(argv[i + 1], "%d", &fps) == 0) {
40 fprintf(stderr, "Cannot parse FPS: %s is not a number\n", argv[i + 1]);
46 fprintf(stderr, "Value of FPS is not provided\n");
51 level_filename = argv[i];
56 if (level_filename == NULL) {
57 fprintf(stderr, "Path to level file is not provided\n");
62 if (SDL_Init(SDL_INIT_EVERYTHING) < 0) {
63 print_error_msg(ERROR_TYPE_SDL2, "Could not initialize SDL");
66 PUSH_LT(lt, 42, SDL_Quit_lt);
68 SDL_ShowCursor(SDL_DISABLE);
70 SDL_Window *const window = PUSH_LT(
75 SCREEN_WIDTH, SCREEN_HEIGHT,
76 SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE),
80 print_error_msg(ERROR_TYPE_SDL2, "Could not create SDL window");
84 SDL_Renderer *const renderer = PUSH_LT(
86 SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC),
88 if (renderer == NULL) {
89 print_error_msg(ERROR_TYPE_SDL2, "Could not create SDL renderer");
92 if (SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND) < 0) {
93 print_error_msg(ERROR_TYPE_SDL2, "Could not set up blending mode for the renderer");
97 SDL_Joystick *the_stick_of_joy = NULL;
99 if (SDL_NumJoysticks() > 0) {
100 the_stick_of_joy = PUSH_LT(lt, SDL_JoystickOpen(0), SDL_JoystickClose);
102 if (the_stick_of_joy == NULL) {
103 print_error_msg(ERROR_TYPE_SDL2, "Could not open 0th Stick of the Joy: %s\n");
107 printf("Opened Joystick 0\n");
108 printf("Name: %s\n", SDL_JoystickNameForIndex(0));
109 printf("Number of Axes: %d\n", SDL_JoystickNumAxes(the_stick_of_joy));
110 printf("Number of Buttons: %d\n", SDL_JoystickNumButtons(the_stick_of_joy));
111 printf("Number of Balls: %d\n", SDL_JoystickNumBalls(the_stick_of_joy));
113 SDL_JoystickEventState(SDL_ENABLE);
115 fprintf(stderr, "[WARNING] Could not find any Sticks of the Joy\n");
119 MIX_DEFAULT_FREQUENCY,
123 print_error_msg(ERROR_TYPE_SDL2_MIXER, "Could not initialize the audio\n");
126 PUSH_LT(lt, 42, Mix_CloseAudio_lt);
128 // ------------------------------
130 const char * sound_sample_files[] = {
131 "./sounds/nothing.wav",
132 "./sounds/something.wav"
134 const size_t sound_sample_files_count = sizeof(sound_sample_files) / sizeof(char*);
136 game_t *const game = PUSH_LT(
141 sound_sample_files_count,
145 print_current_error_msg("Could not create the game object");
149 const Uint8 *const keyboard_state = SDL_GetKeyboardState(NULL);
152 int64_t last_time = (int64_t) SDL_GetTicks();
153 const int64_t expected_delay_ms = (int64_t) (1000.0f / (float) fps);
154 while (!game_over_check(game)) {
155 const int64_t current_time = (int64_t) SDL_GetTicks();
157 if (current_time == last_time) {
158 SDL_Delay((Uint32) expected_delay_ms);
159 last_time = current_time;
163 const int64_t actual_delta_ms = current_time - last_time;
166 while (!game_over_check(game) && SDL_PollEvent(&e)) {
167 if (game_event(game, &e) < 0) {
168 print_current_error_msg("Failed handling event");
173 if (game_input(game, keyboard_state, the_stick_of_joy) < 0) {
174 print_current_error_msg("Failed handling input");
178 if (game_render(game) < 0) {
179 print_current_error_msg("Failed rendering the game");
183 int64_t effective_delta_ms = max_int64(actual_delta_ms, expected_delay_ms);
184 while (effective_delta_ms > 0) {
185 if (game_update(game, (float) min_int64(expected_delay_ms, effective_delta_ms) * 0.001f) < 0) {
186 print_current_error_msg("Failed handling updating");
190 effective_delta_ms -= expected_delay_ms;
193 if (game_sound(game) < 0) {
194 print_current_error_msg("Failed handling the sound");
198 SDL_Delay((unsigned int) max_int64(0, expected_delay_ms - actual_delta_ms));
199 last_time = current_time;