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https://github.com/fredrikr79/SnakeDL3.git
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style: format in 2 spaces instead
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@ -1,6 +1,6 @@
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# Common settings
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BasedOnStyle: llvm # WebKit
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TabWidth: 4
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IndentWidth: 4
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TabWidth: 2
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IndentWidth: 2
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UseTab: Never
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ColumnLimit: 80
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ColumnLimit: 100
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183
src/main.c
183
src/main.c
@ -7,140 +7,133 @@
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static SDL_Window *window = NULL;
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static SDL_Renderer *renderer = NULL;
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static int width = 640;
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static int height = 480;
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static int window_width = 640;
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static int window_height = 480;
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static int grid_width = 32;
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static int grid_height = 24;
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static Uint64 last;
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enum TILES { EMPTY, SNAKE, FRUIT };
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enum PARTS { TAIL, HEAD, BODY };
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typedef enum DIRECTION { LEFT, RIGHT, UP, DOWN } DIRECTION;
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typedef struct State {
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int *grid;
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DIRECTION player_face;
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SDL_FRect *r;
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int *grid;
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DIRECTION player_face;
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SDL_FRect *r;
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} State;
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void log_game_grid(int *game_grid) {
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char *buf = SDL_malloc(sizeof(char) * grid_width * 2);
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for (int i = 0; i < grid_height; i++) {
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for (int j = 0; j < grid_width; j++) {
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buf[2 * j] = '0' + game_grid[i * grid_width + j];
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buf[2 * j + 1] = ' ';
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}
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buf[2 * grid_width] = '\0';
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SDL_Log("%s", buf);
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char *buf = SDL_malloc(sizeof(char) * grid_width * 2);
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for (int i = 0; i < grid_height; i++) {
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for (int j = 0; j < grid_width; j++) {
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buf[2 * j] = '0' + game_grid[i * grid_width + j];
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buf[2 * j + 1] = ' ';
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}
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SDL_free(buf);
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buf[2 * grid_width] = '\0';
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SDL_Log("%s", buf);
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}
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SDL_free(buf);
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}
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void set_grid_at(int *grid, int row, int col, int value) {
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grid[row * grid_width + col] = value;
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}
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void set_grid_at(int *grid, int row, int col, int value) { grid[row * grid_width + col] = value; }
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int get_grid_at(int *grid, int row, int col) {
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return grid[row * grid_width + col];
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}
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int get_grid_at(int *grid, int row, int col) { return grid[row * grid_width + col]; }
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SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[]) {
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if (!SDL_Init(SDL_INIT_VIDEO)) {
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SDL_Log("Couldn't initialize SDL: %s", SDL_GetError());
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return SDL_APP_FAILURE;
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if (!SDL_Init(SDL_INIT_VIDEO)) {
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SDL_Log("Couldn't initialize SDL: %s", SDL_GetError());
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return SDL_APP_FAILURE;
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}
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if (!SDL_CreateWindowAndRenderer("examples/renderer/clear", window_width, window_height, 0,
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&window, &renderer)) {
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SDL_Log("Couldn't create window/renderer: %s", SDL_GetError());
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return SDL_APP_FAILURE;
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}
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int *game_grid = SDL_malloc(sizeof(int) * grid_width * grid_height);
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for (int i = 0; i < grid_height; i++) {
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for (int j = 0; j < grid_width; j++) {
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set_grid_at(game_grid, i, j, EMPTY);
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}
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}
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if (!SDL_CreateWindowAndRenderer("examples/renderer/clear", width, height,
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0, &window, &renderer)) {
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SDL_Log("Couldn't create window/renderer: %s", SDL_GetError());
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return SDL_APP_FAILURE;
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}
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set_grid_at(game_grid, 12, 16, SNAKE);
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set_grid_at(game_grid, 4, 12, FRUIT);
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set_grid_at(game_grid, 18, 5, FRUIT);
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int *game_grid = SDL_malloc(sizeof(int) * grid_width * grid_height);
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for (int i = 0; i < grid_height; i++) {
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for (int j = 0; j < grid_width; j++) {
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set_grid_at(game_grid, i, j, EMPTY);
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}
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}
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SDL_FRect *rect2 = SDL_malloc(sizeof(SDL_FRect));
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rect2->y = 240;
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rect2->x = 0;
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rect2->w = 100;
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rect2->h = 100;
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set_grid_at(game_grid, 12, 16, SNAKE);
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set_grid_at(game_grid, 4, 12, FRUIT);
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set_grid_at(game_grid, 18, 5, FRUIT);
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State *state = SDL_malloc(sizeof(State));
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state->grid = game_grid;
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state->player_face = UP;
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state->r = rect2;
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*appstate = state;
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SDL_FRect *rect2 = SDL_malloc(sizeof(SDL_FRect));
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rect2->y = 240;
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rect2->x = 0;
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rect2->w = 100;
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rect2->h = 100;
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last = SDL_GetTicksNS();
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State *state = SDL_malloc(sizeof(State));
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state->grid = game_grid;
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state->player_face = UP;
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state->r = rect2;
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*appstate = state;
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last = SDL_GetTicksNS();
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return SDL_APP_CONTINUE;
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return SDL_APP_CONTINUE;
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}
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SDL_AppResult SDL_AppEvent(void *appstate, SDL_Event *event) {
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if ((event->type == SDL_EVENT_KEY_UP &&
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event->key.scancode == SDL_SCANCODE_ESCAPE) ||
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event->type == SDL_EVENT_QUIT) {
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return SDL_APP_SUCCESS;
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}
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return SDL_APP_CONTINUE;
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if ((event->type == SDL_EVENT_KEY_UP && event->key.scancode == SDL_SCANCODE_ESCAPE) ||
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event->type == SDL_EVENT_QUIT) {
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return SDL_APP_SUCCESS;
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}
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return SDL_APP_CONTINUE;
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}
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SDL_AppResult SDL_AppIterate(void *appstate) {
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State *stateptr = appstate;
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int *game_grid = stateptr->grid;
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Uint64 delta = SDL_GetTicksNS() - last;
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double duration = (double)delta / (FPS * 1000);
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State *stateptr = appstate;
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int *game_grid = stateptr->grid;
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Uint64 delta = SDL_GetTicksNS() - last;
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double duration = (double)delta / (FPS * 1000);
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SDL_SetRenderDrawColorFloat(renderer, 0, 0, 0, SDL_ALPHA_OPAQUE_FLOAT);
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SDL_RenderClear(renderer);
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SDL_SetRenderDrawColorFloat(renderer, 0, 0, 0, SDL_ALPHA_OPAQUE_FLOAT);
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SDL_RenderClear(renderer);
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SDL_FRect rect;
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rect.w = (float)width / grid_width;
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rect.h = (float)height / grid_height;
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for (int i = 0; i < grid_height; i++) {
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for (int j = 0; j < grid_width; j++) {
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switch (get_grid_at(game_grid, i, j)) {
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case EMPTY:
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SDL_SetRenderDrawColorFloat(renderer, 0, 0, 0,
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SDL_ALPHA_OPAQUE_FLOAT);
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break;
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case SNAKE:
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SDL_SetRenderDrawColorFloat(renderer, 255, 255, 255,
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SDL_ALPHA_OPAQUE_FLOAT);
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break;
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case FRUIT:
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SDL_SetRenderDrawColorFloat(renderer, 255, 0, 0,
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SDL_ALPHA_OPAQUE_FLOAT);
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break;
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}
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rect.x = j * rect.w;
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rect.y = i * rect.h;
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SDL_RenderFillRect(renderer, &rect);
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}
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SDL_FRect rect;
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rect.w = (float)window_width / grid_width;
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rect.h = (float)window_height / grid_height;
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for (int i = 0; i < grid_height; i++) {
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for (int j = 0; j < grid_width; j++) {
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switch (get_grid_at(game_grid, i, j)) {
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case EMPTY:
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SDL_SetRenderDrawColorFloat(renderer, 0, 0, 0, SDL_ALPHA_OPAQUE_FLOAT);
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break;
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case SNAKE:
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SDL_SetRenderDrawColorFloat(renderer, 255, 255, 255, SDL_ALPHA_OPAQUE_FLOAT);
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break;
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case FRUIT:
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SDL_SetRenderDrawColorFloat(renderer, 255, 0, 0, SDL_ALPHA_OPAQUE_FLOAT);
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break;
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}
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rect.x = j * rect.w;
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rect.y = i * rect.h;
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SDL_RenderFillRect(renderer, &rect);
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}
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}
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SDL_FRect *rect2 = stateptr->r;
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rect2->x += 5 * (double)delta / 1000000;
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SDL_Log("%f %f %f %f", rect2->x, rect2->y, rect2->w, rect2->h);
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SDL_SetRenderDrawColorFloat(renderer, 0, 255, 0, SDL_ALPHA_OPAQUE_FLOAT);
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SDL_RenderFillRect(renderer, rect2);
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SDL_FRect *rect2 = stateptr->r;
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rect2->x += 5 * (double)delta / 1000000;
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SDL_Log("%f %f %f %f", rect2->x, rect2->y, rect2->w, rect2->h);
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SDL_SetRenderDrawColorFloat(renderer, 0, 255, 0, SDL_ALPHA_OPAQUE_FLOAT);
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SDL_RenderFillRect(renderer, rect2);
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SDL_RenderPresent(renderer);
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SDL_RenderPresent(renderer);
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last = SDL_GetTicksNS();
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last = SDL_GetTicksNS();
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return SDL_APP_CONTINUE;
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return SDL_APP_CONTINUE;
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}
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void SDL_AppQuit(void *appstate, SDL_AppResult result) {
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/* SDL will clean up the window/renderer for us. */
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/* SDL will clean up the window/renderer for us. */
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}
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