]> git.lizzy.rs Git - nothing.git/blobdiff - src/main.c
Merge pull request #622 from tsoding/616
[nothing.git] / src / main.c
index 9260c237db44d236ad4842026572f05e52f09219..ba2b9488e76941aaac4004eea97c24f41f8f5892 100644 (file)
@@ -1,50 +1,72 @@
+#include <SDL2/SDL.h>
+#include <SDL2/SDL_mixer.h>
+
+#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
-#include <SDL2/SDL.h>
-#include <SDL2/SDL_mixer.h>
 
-#include "./player.h"
-#include "./platforms.h"
-#include "./error.h"
-#include "./game.h"
-#include "./lt.h"
-#include "./path.h"
+#include "game.h"
+#include "game/level/platforms.h"
+#include "game/level/player.h"
+#include "game/sound_samples.h"
+#include "game/sprite_font.h"
+#include "math/point.h"
+#include "sdl/renderer.h"
+#include "system/log.h"
+#include "system/lt.h"
+#include "system/lt/lt_adapters.h"
 
 #define SCREEN_WIDTH 800
 #define SCREEN_HEIGHT 600
-#define GAME_FPS 60
-
-/* LT module adapter for SDL_Quit */
-static void SDL_Quit_lt(void* ignored)
-{
-    (void) ignored;
-    SDL_Quit();
-}
 
 static void print_usage(FILE *stream)
 {
-    fprintf(stream, "Usage: nothing <level-file>\n");
+    fprintf(stream, "Usage: nothing [--fps <fps>] <level-file>\n");
 }
 
 int main(int argc, char *argv[])
 {
     srand((unsigned int) time(NULL));
 
-    lt_t *const lt = create_lt();
+    Lt *const lt = create_lt();
+
+    char *level_filename = NULL;
+    int fps = 30;
+
+    for (int i = 1; i < argc;) {
+        if (strcmp(argv[i], "--fps") == 0) {
+            if (i + 1 < argc) {
+                if (sscanf(argv[i + 1], "%d", &fps) == 0) {
+                    log_fail("Cannot parse FPS: %s is not a number\n", argv[i + 1]);
+                    print_usage(stderr);
+                    RETURN_LT(lt, -1);
+                }
+                i += 2;
+            } else {
+                log_fail("Value of FPS is not provided\n");
+                print_usage(stderr);
+                RETURN_LT(lt, -1);
+            }
+        } else {
+            level_filename = argv[i];
+            i++;
+        }
+    }
 
-    if (argc < 2) {
+    if (level_filename == NULL) {
+        log_fail("Path to level file is not provided\n");
         print_usage(stderr);
         RETURN_LT(lt, -1);
     }
 
     if (SDL_Init(SDL_INIT_EVERYTHING) < 0) {
-        print_error_msg(ERROR_TYPE_SDL2, "Could not initialize SDL");
+        log_fail("Could not initialize SDL: %s\n", SDL_GetError());
         RETURN_LT(lt, -1);
     }
     PUSH_LT(lt, 42, SDL_Quit_lt);
 
-    /* TODO(#128): introduce some kind of sound medium where all of the sound samples are propagated */
+    SDL_ShowCursor(SDL_DISABLE);
 
     SDL_Window *const window = PUSH_LT(
         lt,
@@ -56,7 +78,7 @@ int main(int argc, char *argv[])
         SDL_DestroyWindow);
 
     if (window == NULL) {
-        print_error_msg(ERROR_TYPE_SDL2, "Could not create SDL window");
+        log_fail("Could not create SDL window: %s\n", SDL_GetError());
         RETURN_LT(lt, -1);
     }
 
@@ -65,11 +87,11 @@ int main(int argc, char *argv[])
         SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC),
         SDL_DestroyRenderer);
     if (renderer == NULL) {
-        print_error_msg(ERROR_TYPE_SDL2, "Could not create SDL renderer");
+        log_fail("Could not create SDL renderer: %s\n", SDL_GetError());
         RETURN_LT(lt, -1);
     }
     if (SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND) < 0) {
-        print_error_msg(ERROR_TYPE_SDL2, "Could not set up blending mode for the renderer");
+        log_fail("Could not set up blending mode for the renderer: %s\n", SDL_GetError());
         RETURN_LT(lt, -1);
     }
 
@@ -79,59 +101,91 @@ int main(int argc, char *argv[])
         the_stick_of_joy = PUSH_LT(lt, SDL_JoystickOpen(0), SDL_JoystickClose);
 
         if (the_stick_of_joy == NULL) {
-            print_error_msg(ERROR_TYPE_SDL2, "Could not open 0th Stick of the Joy: %s\n");
+            log_fail("Could not open 0th Stick of the Joy: %s\n", SDL_GetError());
             RETURN_LT(lt, -1);
         }
 
-        printf("Opened Joystick 0\n");
-        printf("Name: %s\n", SDL_JoystickNameForIndex(0));
-        printf("Number of Axes: %d\n", SDL_JoystickNumAxes(the_stick_of_joy));
-        printf("Number of Buttons: %d\n", SDL_JoystickNumButtons(the_stick_of_joy));
-        printf("Number of Balls: %d\n", SDL_JoystickNumBalls(the_stick_of_joy));
+        log_info("Opened Joystick 0\n");
+        log_info("Name: %s\n", SDL_JoystickNameForIndex(0));
+        log_info("Number of Axes: %d\n", SDL_JoystickNumAxes(the_stick_of_joy));
+        log_info("Number of Buttons: %d\n", SDL_JoystickNumButtons(the_stick_of_joy));
+        log_info("Number of Balls: %d\n", SDL_JoystickNumBalls(the_stick_of_joy));
 
         SDL_JoystickEventState(SDL_ENABLE);
     } else {
-        fprintf(stderr, "[WARNING] Could not find any Sticks of the Joy\n");
+        log_warn("Could not find any Sticks of the Joy\n");
     }
 
-    // ------------------------------
-
-    char *sounds_folder = PUSH_LT(lt, base_path_folder("sounds"), free);
-    if (sounds_folder == NULL) {
+    if (Mix_OpenAudio(
+            MIX_DEFAULT_FREQUENCY,
+            MIX_DEFAULT_FORMAT,
+            2,
+            1024) < 0) {
+        log_fail("Could not initialize the audio: %s\n", Mix_GetError());
         RETURN_LT(lt, -1);
     }
+    PUSH_LT(lt, 42, Mix_CloseAudio_lt);
+
+    // ------------------------------
 
-    game_t *const game = PUSH_LT(lt, create_game(argv[1], sounds_folder), destroy_game);
+    const char * sound_sample_files[] = {
+        "./sounds/nothing.wav",
+        "./sounds/something.wav"
+    };
+    const size_t sound_sample_files_count = sizeof(sound_sample_files) / sizeof(char*);
+
+    Game *const game = PUSH_LT(
+        lt,
+        create_game(
+            level_filename,
+            sound_sample_files,
+            sound_sample_files_count,
+            renderer),
+        destroy_game);
     if (game == NULL) {
-        print_current_error_msg("Could not create the game object");
         RETURN_LT(lt, -1);
     }
 
     const Uint8 *const keyboard_state = SDL_GetKeyboardState(NULL);
-    const Uint32 delay_ms = (Uint32) roundf(1000.0f / GAME_FPS);
+
+    SDL_StopTextInput();
     SDL_Event e;
+    const int64_t delta_time = (int64_t) roundf(1000.0f / 60.0f);
+    int64_t render_timer = (int64_t) roundf(1000.0f / (float) fps);
     while (!game_over_check(game)) {
+        const int64_t begin_frame_time = (int64_t) SDL_GetTicks();
+
         while (!game_over_check(game) && SDL_PollEvent(&e)) {
             if (game_event(game, &e) < 0) {
-                print_current_error_msg("Failed handling event");
                 RETURN_LT(lt, -1);
             }
         }
 
         if (game_input(game, keyboard_state, the_stick_of_joy) < 0) {
-            print_current_error_msg("Failed handling input");
             RETURN_LT(lt, -1);
         }
 
-        if (game_update(game, delay_ms) < 0) {
-            print_current_error_msg("Failed handling updating");
+        if (game_update(game, (float) delta_time * 0.001f) < 0) {
             RETURN_LT(lt, -1);
         }
 
-        if (game_render(game, renderer) < 0) {
-            print_current_error_msg("Failed rendering the game");
+        if (game_sound(game) < 0) {
             RETURN_LT(lt, -1);
         }
+
+        render_timer -= delta_time;
+        if (render_timer <= 0) {
+            if (game_render(game) < 0) {
+                RETURN_LT(lt, -1);
+            }
+            SDL_RenderPresent(renderer);
+            render_timer = (int64_t) roundf(1000.0f / (float) fps);
+        }
+
+        const int64_t end_frame_time = (int64_t) SDL_GetTicks();
+#define max_int64(a, b) (a > b ? a : b)
+        SDL_Delay((unsigned int) max_int64(10, delta_time - (end_frame_time - begin_frame_time)));
+#undef max_int64
     }
 
     RETURN_LT(lt, 0);