simkir/zig-a-puzzle-a-day
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Fix frame and grabbing

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This commit is contained in:
Simen Kirkvik
2026-03-08 16:25:14 +01:00
parent 15d830987e
commit 2959ed9cd0
3 changed files with 123 additions and 74 deletions
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src/root.zig
+39 -29
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@@ -87,6 +87,7 @@ const State = struct {
frame_count: i32,
mouse_pos: V2,
camera: Camera,
grabbed_brick_index: ?usize,
bricks: [8]Brick,
};
@@ -238,6 +239,8 @@ pub fn updateAndRender(memory: *platform.AppMemory, buffer: platform.OffscreenBu
if (!memory.initialized) {
state.camera.offset = mid;
state.grabbed_brick_index = null;
state.bricks[0] = Brick{
.rotating = false,
.rotating_time = 0,
@@ -350,8 +353,11 @@ pub fn updateAndRender(memory: *platform.AppMemory, buffer: platform.OffscreenBu
const mouse_world_pos = mouse_pos.sub(state.camera.pos);
var mouse_on_brick = false;
for (&state.bricks) |*brick| {
if (!input.mouse_left_down) {
state.grabbed_brick_index = null;
}
for (&state.bricks, 0..) |*brick, brick_index| {
if (brick.rotating) {
brick.rotating_time += input.delta_time;
if (brick.rotating_time > 0.25) {
@@ -370,41 +376,45 @@ pub fn updateAndRender(memory: *platform.AppMemory, buffer: platform.OffscreenBu
const pos = tile_pos.add(brick.pos);
const camera_pos = pos.add(state.camera.pos);
if (pointInsideRect(state.mouse_pos, camera_pos, tile_size)) {
if (input.mouse_left_down) {
const diff = mouse_pos.sub(state.mouse_pos);
brick.pos = brick.pos.add(diff);
if (keyPressed(&input.key.space)) {
brick.rotating = true;
const rotated = brick.rotate();
brick.tiles = rotated;
const bbox = findBrickBoundingBox(brick);
const center = brick.pos.sub(bbox.center);
brick.pos = mouse_world_pos.add(center);
if (input.mouse_left_down) {
if (pointInsideRect(state.mouse_pos, camera_pos, tile_size)) {
if (state.grabbed_brick_index == null) {
state.grabbed_brick_index = brick_index;
}
// Flip
if (keyPressed(&input.key.f)) {
brick.rotating = true;
const flipped = brick.transpose();
brick.tiles = flipped;
const bbox = findBrickBoundingBox(brick);
const center = brick.pos.sub(bbox.center);
brick.pos = mouse_world_pos.add(center);
}
mouse_on_brick = true;
}
}
}
}
}
if (brick_index == state.grabbed_brick_index) {
const diff = mouse_pos.sub(state.mouse_pos);
brick.pos = brick.pos.add(diff);
if (keyPressed(&input.key.space)) {
brick.rotating = true;
const rotated = brick.rotate();
brick.tiles = rotated;
const bbox = findBrickBoundingBox(brick);
const center = brick.pos.sub(bbox.center);
brick.pos = mouse_world_pos.add(center);
}
// Flip
if (keyPressed(&input.key.f)) {
brick.rotating = true;
const flipped = brick.transpose();
brick.tiles = flipped;
const bbox = findBrickBoundingBox(brick);
const center = brick.pos.sub(bbox.center);
brick.pos = mouse_world_pos.add(center);
}
}
}
if (input.mouse_left_down and !mouse_on_brick) {
if (input.mouse_left_down and state.grabbed_brick_index == null) {
const diff = mouse_pos.sub(state.mouse_pos);
state.camera.pos = state.camera.pos.add(diff);
}