diff options
| -rw-r--r-- | main.c | 19 |
1 files changed, 13 insertions, 6 deletions
@@ -54,6 +54,7 @@ int main(void) camera.zoom = 1.0f; InitWindow(state.window_len, state.window_len, "Abelian sand pile"); SetTargetFPS(60); + const float zoom = 0.125f; while (!WindowShouldClose()) { @@ -61,17 +62,23 @@ int main(void) if (IsKeyPressed(KEY_UP) || IsKeyDown(KEY_UP)) { - Vector2 world_pos = GetScreenToWorld2D(GetMousePosition(), camera); - camera.offset = GetMousePosition(); + Vector2 centre = {state.window_len / 2, state.window_len / 2}; + Vector2 world_pos = GetScreenToWorld2D(centre, camera); + camera.offset = centre; camera.target = world_pos; - camera.zoom += 0.125f; + camera.zoom += zoom; + if (camera.zoom < zoom) + camera.zoom = zoom; } if (IsKeyPressed(KEY_DOWN) || IsKeyDown(KEY_DOWN)) { - Vector2 world_pos = GetScreenToWorld2D(GetMousePosition(), camera); - camera.offset = GetMousePosition(); + Vector2 centre = {state.window_len / 2, state.window_len / 2}; + Vector2 world_pos = GetScreenToWorld2D(centre, camera); + camera.offset = centre; camera.target = world_pos; - camera.zoom -= 0.125f; + camera.zoom -= zoom; + if (camera.zoom < zoom) + camera.zoom = zoom; } if (IsMouseButtonDown(MOUSE_BUTTON_LEFT)) |