2020-12-06 17:35:21 +09:00
|
|
|
import * as Matter from 'matter-js';
|
2020-12-06 12:51:00 +09:00
|
|
|
|
|
|
|
export function physics(container: HTMLElement) {
|
|
|
|
const containerWidth = container.offsetWidth;
|
|
|
|
const containerHeight = container.offsetHeight;
|
|
|
|
const containerCenterX = containerWidth / 2;
|
|
|
|
|
|
|
|
// サイズ固定化(要らないかも?)
|
|
|
|
container.style.position = 'relative';
|
|
|
|
container.style.boxSizing = 'border-box';
|
|
|
|
container.style.width = `${containerWidth}px`;
|
|
|
|
container.style.height = `${containerHeight}px`;
|
|
|
|
|
|
|
|
// create engine
|
2020-12-06 17:35:21 +09:00
|
|
|
const engine = Matter.Engine.create({
|
|
|
|
constraintIterations: 4,
|
|
|
|
positionIterations: 8,
|
|
|
|
velocityIterations: 8,
|
|
|
|
});
|
|
|
|
|
|
|
|
const world = engine.world;
|
2020-12-06 12:51:00 +09:00
|
|
|
|
|
|
|
// create renderer
|
|
|
|
const render = Matter.Render.create({
|
|
|
|
engine: engine,
|
|
|
|
//element: document.getElementById('debug'),
|
|
|
|
options: {
|
|
|
|
width: containerWidth,
|
|
|
|
height: containerHeight,
|
|
|
|
background: 'transparent', // transparent to hide
|
|
|
|
wireframeBackground: 'transparent', // transparent to hide
|
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
// Disable to hide debug
|
|
|
|
Matter.Render.run(render);
|
|
|
|
|
|
|
|
// create runner
|
|
|
|
const runner = Matter.Runner.create();
|
|
|
|
Matter.Runner.run(runner, engine);
|
|
|
|
|
2020-12-06 17:35:21 +09:00
|
|
|
const groundThickness = 1024;
|
|
|
|
const ground = Matter.Bodies.rectangle(containerCenterX, containerHeight + (groundThickness / 2), containerWidth, groundThickness, {
|
2022-06-10 14:36:55 +09:00
|
|
|
isStatic: true,
|
|
|
|
restitution: 0.1,
|
|
|
|
friction: 2
|
2020-12-06 17:35:21 +09:00
|
|
|
});
|
2020-12-06 12:51:00 +09:00
|
|
|
|
|
|
|
//const wallRight = Matter.Bodies.rectangle(window.innerWidth+50, window.innerHeight/2, 100, window.innerHeight, wallopts);
|
|
|
|
//const wallLeft = Matter.Bodies.rectangle(-50, window.innerHeight/2, 100, window.innerHeight, wallopts);
|
|
|
|
|
|
|
|
Matter.World.add(world, [
|
|
|
|
ground,
|
|
|
|
//wallRight,
|
|
|
|
//wallLeft,
|
|
|
|
]);
|
|
|
|
|
|
|
|
const objEls = Array.from(container.children);
|
|
|
|
const objs = [];
|
|
|
|
for (const objEl of objEls) {
|
2020-12-06 23:54:58 +09:00
|
|
|
const left = objEl.dataset.physicsX ? parseInt(objEl.dataset.physicsX) : objEl.offsetLeft;
|
|
|
|
const top = objEl.dataset.physicsY ? parseInt(objEl.dataset.physicsY) : objEl.offsetTop;
|
|
|
|
|
2020-12-06 12:51:00 +09:00
|
|
|
let obj;
|
|
|
|
if (objEl.classList.contains('_physics_circle_')) {
|
|
|
|
obj = Matter.Bodies.circle(
|
2020-12-06 23:54:58 +09:00
|
|
|
left + (objEl.offsetWidth / 2),
|
|
|
|
top + (objEl.offsetHeight / 2),
|
2020-12-06 12:51:00 +09:00
|
|
|
Math.max(objEl.offsetWidth, objEl.offsetHeight) / 2,
|
2020-12-28 21:59:59 +09:00
|
|
|
{
|
|
|
|
restitution: 0.5
|
|
|
|
}
|
2020-12-06 12:51:00 +09:00
|
|
|
);
|
|
|
|
} else {
|
|
|
|
const style = window.getComputedStyle(objEl);
|
|
|
|
obj = Matter.Bodies.rectangle(
|
2020-12-06 23:54:58 +09:00
|
|
|
left + (objEl.offsetWidth / 2),
|
|
|
|
top + (objEl.offsetHeight / 2),
|
2020-12-06 12:51:00 +09:00
|
|
|
objEl.offsetWidth,
|
|
|
|
objEl.offsetHeight,
|
|
|
|
{
|
2021-10-02 01:08:04 +09:00
|
|
|
chamfer: { radius: parseInt(style.borderRadius || '0', 10) },
|
2020-12-28 21:59:59 +09:00
|
|
|
restitution: 0.5
|
2020-12-06 12:51:00 +09:00
|
|
|
}
|
|
|
|
);
|
|
|
|
}
|
|
|
|
objEl.id = obj.id;
|
|
|
|
objs.push(obj);
|
|
|
|
}
|
|
|
|
|
|
|
|
Matter.World.add(engine.world, objs);
|
|
|
|
|
|
|
|
// Add mouse control
|
|
|
|
|
|
|
|
const mouse = Matter.Mouse.create(container);
|
|
|
|
const mouseConstraint = Matter.MouseConstraint.create(engine, {
|
|
|
|
mouse: mouse,
|
|
|
|
constraint: {
|
2020-12-28 21:59:59 +09:00
|
|
|
stiffness: 0.1,
|
2020-12-06 12:51:00 +09:00
|
|
|
render: {
|
|
|
|
visible: false
|
|
|
|
}
|
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
Matter.World.add(engine.world, mouseConstraint);
|
|
|
|
|
|
|
|
// keep the mouse in sync with rendering
|
|
|
|
render.mouse = mouse;
|
|
|
|
|
|
|
|
for (const objEl of objEls) {
|
2022-08-04 05:48:13 +09:00
|
|
|
objEl.style.position = 'absolute';
|
2020-12-06 12:51:00 +09:00
|
|
|
objEl.style.top = 0;
|
|
|
|
objEl.style.left = 0;
|
|
|
|
objEl.style.margin = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
window.requestAnimationFrame(update);
|
|
|
|
|
|
|
|
let stop = false;
|
|
|
|
|
|
|
|
function update() {
|
|
|
|
for (const objEl of objEls) {
|
|
|
|
const obj = objs.find(obj => obj.id.toString() === objEl.id.toString());
|
|
|
|
if (obj == null) continue;
|
|
|
|
|
|
|
|
const x = (obj.position.x - objEl.offsetWidth / 2);
|
|
|
|
const y = (obj.position.y - objEl.offsetHeight / 2);
|
|
|
|
const angle = obj.angle;
|
|
|
|
objEl.style.transform = `translate(${x}px, ${y}px) rotate(${angle}rad)`;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!stop) {
|
|
|
|
window.requestAnimationFrame(update);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-12-06 17:35:21 +09:00
|
|
|
// 奈落に落ちたオブジェクトは消す
|
2022-01-16 10:14:14 +09:00
|
|
|
const intervalId = window.setInterval(() => {
|
2020-12-06 17:35:21 +09:00
|
|
|
for (const obj of objs) {
|
|
|
|
if (obj.position.y > (containerHeight + 1024)) Matter.World.remove(world, obj);
|
|
|
|
}
|
|
|
|
}, 1000 * 10);
|
|
|
|
|
2020-12-06 12:51:00 +09:00
|
|
|
return {
|
|
|
|
stop: () => {
|
|
|
|
stop = true;
|
|
|
|
Matter.Runner.stop(runner);
|
2022-01-16 10:14:14 +09:00
|
|
|
window.clearInterval(intervalId);
|
2020-12-06 12:51:00 +09:00
|
|
|
}
|
|
|
|
};
|
|
|
|
}
|