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fix movement animation

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This commit is contained in:
Fredrik Robertsen
2025-04-06 02:27:40 +02:00
parent 09f67d23c4
commit a14525e027
2 changed files with 10 additions and 13 deletions
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21
src/main.c
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@@ -15,7 +15,7 @@ static SDL_Renderer *renderer = NULL;
#define GRID_PADDING 4
#define GRID_WIDTH 18
#define GRID_HEIGHT 15
#define TILE_WIDTH 24
#define TILE_WIDTH 28
#define TILE_HEIGHT 24
enum GRID_TILES { EMPTY, SNAKE, FRUIT };
@@ -122,24 +122,21 @@ SDL_AppResult SDL_AppEvent(void *appstate, SDL_Event *event) {
}
void game_step(State *stateptr) {
// SDL_Log("snek: %d %d %d %d", player->direction, player->length, player->head_index,
// player->tail_index);
Snake player = stateptr->player;
vector_print(stateptr->player.body);
int head = vector_pop(&stateptr->player.body);
vector_push(&stateptr->player.body, head);
switch (player.direction) {
switch (stateptr->player.direction) {
case RIGHT:
vector_push(&player.body, head + 1);
vector_push(&stateptr->player.body, head + 1);
break;
case UP:
vector_push(&player.body, head - GRID_WIDTH);
vector_push(&stateptr->player.body, head - GRID_WIDTH);
break;
case LEFT:
vector_push(&player.body, head - 1);
vector_push(&stateptr->player.body, head - 1);
break;
case DOWN:
vector_push(&player.body, head + GRID_WIDTH);
vector_push(&stateptr->player.body, head + GRID_WIDTH);
break;
}
}
@@ -178,8 +175,8 @@ SDL_AppResult SDL_AppIterate(void *appstate) {
SDL_SetRenderDrawColor(renderer, COLOR_SNAKE);
for (int i = 0; i < player.length; i++) {
int b = player.body.data[i];
rect.x = startx + ROW_AT(b) * (rect.w + GRID_PADDING);
rect.y = starty + COL_AT(b) * (rect.h + GRID_PADDING);
rect.x = startx + COL_AT(b) * (rect.w + GRID_PADDING);
rect.y = starty + ROW_AT(b) * (rect.h + GRID_PADDING);
SDL_RenderFillRect(renderer, &rect);
}

2
src/utils/vector.c
View File

@@ -38,7 +38,7 @@ void vector_pusha(Vector *v, int *vals, int n) {
int vector_pop(Vector *v) {
if (v->size < 1) {
printf("vector_pop: popping empty vector");
printf("vector_pop: popping empty vector\n");
return 0;
}
int val = v->data[v->size - 1];