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(main)+zoom in and out by keyboard,+translation by mouse

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This commit is contained in:
Aryadev Chavali
2023-08-25 18:52:11 +01:00
parent 32934c0c1a
commit 9524e7ade9
1 changed files with 22 additions and 0 deletions
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22
main.c
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@@ -58,6 +58,28 @@ int main(void)
while (!WindowShouldClose())
{
step(&state);
if (IsKeyPressed(KEY_UP) || IsKeyDown(KEY_UP))
{
Vector2 world_pos = GetScreenToWorld2D(GetMousePosition(), camera);
camera.offset = GetMousePosition();
camera.target = world_pos;
camera.zoom += 0.125f;
}
if (IsKeyPressed(KEY_DOWN) || IsKeyDown(KEY_DOWN))
{
Vector2 world_pos = GetScreenToWorld2D(GetMousePosition(), camera);
camera.offset = GetMousePosition();
camera.target = world_pos;
camera.zoom -= 0.125f;
}
if (IsMouseButtonDown(MOUSE_BUTTON_LEFT))
{
Vector2 delta = Vector2Scale(GetMouseDelta(), -1.0f / camera.zoom);
camera.target = Vector2Add(camera.target, delta);
}
BeginDrawing();
ClearBackground(BLACK);
BeginMode2D(camera);