PIXI 8 tilemap moves the wrong distance when app.stage.position updated #167
Description
I added the following code in examples/demo/basic.js to make it support mouse dragging, but the tilemap moved incorrectly by twice the distance.
await app.init({
width: 800,
height: 600,
preference: searchParams.get('preference') || 'webgl',
hello: true
});
const tilemap = new PIXI.tilemap.CompositeTilemap();
// ------------------------------------------------- added code -------------------------------------------------
let panPos = undefined;
app.canvas.addEventListener('mousemove', (e) => {
if (!panPos) return;
app.stage.position.x += e.pageX - panPos.x;
app.stage.position.y += e.pageY - panPos.y;
panPos = { x: e.pageX, y: e.pageY };
});
app.canvas.addEventListener('mousedown', (e) => {
panPos = { x: e.pageX, y: e.pageY };
});
app.canvas.addEventListener('mouseup', (e) => {
panPos = undefined;
});
// ------------------------------------------------- added code end -------------------------------------------------
document.body.appendChild(app.canvas);
app.stage.addChild(tilemap);examples of issue
It can be found that the Sprite added directly on the stage can follow the movement of the mouse very well, but the tilemap moves at twice the distance. After my test, modifying the stage.scale also has similar problems.