oreodave/abelian-sandpile
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(main)~fixed bug with zooming out too far

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Stopped presenting the simulation after a while.
This commit is contained in:
Aryadev Chavali
2023-08-25 18:54:44 +01:00
parent 9524e7ade9
commit 985a883fda
1 changed files with 13 additions and 6 deletions
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19
main.c
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@@ -54,6 +54,7 @@ int main(void)
camera.zoom = 1.0f; camera.zoom = 1.0f;
InitWindow(state.window_len, state.window_len, "Abelian sand pile"); InitWindow(state.window_len, state.window_len, "Abelian sand pile");
SetTargetFPS(60); SetTargetFPS(60);
const float zoom = 0.125f;
while (!WindowShouldClose()) while (!WindowShouldClose())
{ {
@@ -61,17 +62,23 @@ int main(void)
if (IsKeyPressed(KEY_UP) || IsKeyDown(KEY_UP)) if (IsKeyPressed(KEY_UP) || IsKeyDown(KEY_UP))
{ {
Vector2 world_pos = GetScreenToWorld2D(GetMousePosition(), camera); Vector2 centre = {state.window_len / 2, state.window_len / 2};
camera.offset = GetMousePosition(); Vector2 world_pos = GetScreenToWorld2D(centre, camera);
camera.offset = centre;
camera.target = world_pos; 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)) if (IsKeyPressed(KEY_DOWN) || IsKeyDown(KEY_DOWN))
{ {
Vector2 world_pos = GetScreenToWorld2D(GetMousePosition(), camera); Vector2 centre = {state.window_len / 2, state.window_len / 2};
camera.offset = GetMousePosition(); Vector2 world_pos = GetScreenToWorld2D(centre, camera);
camera.offset = centre;
camera.target = world_pos; camera.target = world_pos;
camera.zoom -= 0.125f; camera.zoom -= zoom;
if (camera.zoom < zoom)
camera.zoom = zoom;
} }
if (IsMouseButtonDown(MOUSE_BUTTON_LEFT)) if (IsMouseButtonDown(MOUSE_BUTTON_LEFT))