我試圖使用過濾碰撞作爲在"Matter.js body documentation"描述之間的碰撞。但是,對於我的項目,我需要禁用不同複合對象之間的衝突。所以只有在同一個複合體中的物體纔會碰撞。我計劃擁有32個以上的複合材料(32個是由Matter.js提供的最大碰撞類別)。我將如何實現這一目標?Matter.js禁用不同的複合材料
// module aliases
var Engine = Matter.Engine,
Render = Matter.Render,
World = Matter.World,
Bodies = Matter.Bodies,
Body = Matter.Body,
Vector = Matter.Vector,
Composite = Matter.Composite,
Constraint = Matter.Constraint,
MouseConstraint = Matter.MouseConstraint;
// create an engine
var engine = Engine.create();
// create a renderer
var container = document.getElementById("container");
var canvas = document.getElementById("maincanvas");
var render = Render.create({
element: container,
canvas: canvas,
engine: engine,
options: {
height: 400,
width: 400,
wireframes: false
}
});
// This makes collision much easier to test
engine.world.gravity = {x:0, y:0};
// Add a mouseconstraint to test
var mc = MouseConstraint.create(engine, {
element: render.canvas
});
Composite.add(engine.world, mc);
var bodies1 = []
var bodies2 = []
var xpos = 30
var ypos = 30
for (var i = 0; i < 5; i++){
bodies1.push(Bodies.circle(xpos, ypos, 10, {
collisionFilter: {
group:-1
},
render: {
fillStyle: "blue"
}
})
);
xpos += 30;
}
for (var i = 0; i < 5; i++){
bodies2.push(Bodies.circle(xpos, ypos, 10, {
collisionFilter: {
group:-1
},
render: {
fillStyle: "red"
}
})
);
xpos += 30;
}
var composite1 = Composite.create();
Composite.add(composite1, bodies1);
var composite2 = Composite.create();
Composite.add(composite2, bodies2);
Composite.add(engine.world, [composite1, composite2]);
Engine.run(engine);
Render.run(render);
這樣我就可以禁用複合材料之間的碰撞,但是這也會禁用複合材料內部的碰撞。我能做到這一點與collisionFilter.category
系統,但如何將與更多然後32層複合材料的工作?