43 lines
1.2 KiB
TypeScript
43 lines
1.2 KiB
TypeScript
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import type {Testbed} from "../Testbed";
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type RAPIER_API = typeof import("@dimforge/rapier3d");
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export function initWorld(RAPIER: RAPIER_API, testbed: Testbed) {
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let gravity = new RAPIER.Vector3(0.0, 0.0, 0.0);
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let world = new RAPIER.World(gravity);
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/*
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* Create the cubes
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*/
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let num = 10;
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let rad = 0.2;
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let subdiv = 1.0 / num;
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let i;
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for (i = 0; i < num; ++i) {
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let x = Math.sin(i * subdiv * Math.PI * 2.0);
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let y = Math.cos(i * subdiv * Math.PI * 2.0);
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// Build the rigid body.
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let bodyDesc = RAPIER.RigidBodyDesc.dynamic()
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.setTranslation(x, y, 0.0)
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.setLinvel(x * 10.0, y * 10.0, 0.0)
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.setAngvel(new RAPIER.Vector3(0.0, 0.0, 100.0))
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.setLinearDamping((i + 1) * subdiv * 10.0)
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.setAngularDamping((num - i) * subdiv * 10.0);
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let body = world.createRigidBody(bodyDesc);
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// Build the collider.
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let colliderDesc = RAPIER.ColliderDesc.cuboid(rad, rad, rad);
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world.createCollider(colliderDesc, body);
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}
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testbed.setWorld(world);
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let cameraPosition = {
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eye: {x: 0, y: 2.0, z: 20},
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target: {x: 0, y: 2.0, z: 0},
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};
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testbed.lookAt(cameraPosition);
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}
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