mage-engine
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A WebGL Javascript Game Engine, built on top of THREE.js and many other libraries.
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<title>Code coverage report for physics/worker/world.js</title>
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<h1><a href="../../index.html">All files</a> / <a href="index.html">physics/worker</a> world.js</h1>
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<span class='fraction'>0/27</span>
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<span class='fraction'>0/24</span>
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<pre><table class="coverage">
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import { GRAVITY, TYPES } from "../constants";
import { handleElementUpdate } from "./elements";
import { handleVehicleUpdate } from "./vehicles";
import { handlePlayerUpdate } from "./player";
import dispatcher from "./lib/dispatcher";
import { PHYSICS_EVENTS } from "../messages";
const requestNextFrame =
<span class="cstat-no" title="statement not covered" > self.requestAnimationFrame ||</span>
self.webkitRequestAnimationFrame ||
self.mozRequestAnimationFrame ||
self.oRequestAnimationFrame ||
self.msRequestAnimationFrame ||
<span class="fstat-no" title="function not covered" > fu</span>nction (callback, element) {
<span class="cstat-no" title="statement not covered" > self.setTimeout(callback, 1000 / 120);</span>
};
class Clock {
<span class="fstat-no" title="function not covered" > co</span>nstructor() {
<span class="cstat-no" title="statement not covered" > this.timestamp = null;</span>
}
<span class="fstat-no" title="function not covered" > ge</span>tDelta() {
const time = <span class="cstat-no" title="statement not covered" >Date.now();</span>
<span class="cstat-no" title="statement not covered" > if (this.timestamp) {</span>
const delta = <span class="cstat-no" title="statement not covered" >time - this.timestamp;</span>
<span class="cstat-no" title="statement not covered" > this.timestamp = time;</span>
<span class="cstat-no" title="statement not covered" > return delta;</span>
} else {
<span class="cstat-no" title="statement not covered" > this.timestamp = time;</span>
<span class="cstat-no" title="statement not covered" > return 0;</span>
}
}
}
export class World {
<span class="fstat-no" title="function not covered" > co</span>nstructor() {
<span class="cstat-no" title="statement not covered" > this.elements = {};</span>
<span class="cstat-no" title="statement not covered" > this.initialised = false;</span>
<span class="cstat-no" title="statement not covered" > this.collisionConfiguration = undefined;</span>
<span class="cstat-no" title="statement not covered" > this.dispatcher = undefined;</span>
<span class="cstat-no" title="statement not covered" > this.broadphase = undefined;</span>
<span class="cstat-no" title="statement not covered" > this.solver = undefined;</span>
<span class="cstat-no" title="statement not covered" > this.dynamicsWorld = undefined;</span>
<span class="cstat-no" title="statement not covered" > this.requestAnimationFrameId = null;</span>
<span class="cstat-no" title="statement not covered" > this.clock = new Clock();</span>
}
init = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >op</span>tions => {</span>
const { gravity = <span class="branch-0 cbranch-no" title="branch not covered" >GRAVITY </span>} = <span class="cstat-no" title="statement not covered" >options;</span>
<span class="cstat-no" title="statement not covered" > this.collisionConfiguration = new Ammo.btDefaultCollisionConfiguration();</span>
<span class="cstat-no" title="statement not covered" > this.dispatcher = new Ammo.btCollisionDispatcher(this.collisionConfiguration);</span>
<span class="cstat-no" title="statement not covered" > this.broadphase = new Ammo.btDbvtBroadphase();</span>
<span class="cstat-no" title="statement not covered" > this.solver = new Ammo.btSequentialImpulseConstraintSolver();</span>
<span class="cstat-no" title="statement not covered" > this.dynamicsWorld = new Ammo.btDiscreteDynamicsWorld(</span>
this.dispatcher,
this.broadphase,
this.solver,
this.collisionConfiguration,
);
<span class="cstat-no" title="statement not covered" > this.dynamicsWorld.setGravity(new Ammo.btVector3(gravity.x, gravity.y, gravity.z));</span>
// this is needed for ghostObject collisions
<span class="cstat-no" title="statement not covered" > this.dynamicsWorld</span>
.getBroadphase()
.getOverlappingPairCache()
.setInternalGhostPairCallback(new Ammo.btGhostPairCallback());
<span class="cstat-no" title="statement not covered" > this.initialised = true;</span>
};
removeElement = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >uu</span>id => {</span>
<span class="cstat-no" title="statement not covered" > if (this.hasElement(uuid)) {</span>
<span class="cstat-no" title="statement not covered" > this.elements[uuid].deleted = true;</span>
}
};
removeDeletedElements = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >()</span> =></span>
<span class="cstat-no" title="statement not covered" > Object.keys(this.elements)</span>
.filter(<span class="fstat-no" title="function not covered" >uu</span>id => <span class="cstat-no" title="statement not covered" >this.elements[uuid].deleted)</span>
.forEach(<span class="fstat-no" title="function not covered" >uu</span>id => {
<span class="cstat-no" title="statement not covered" > delete this.elements[uuid];</span>
});
hasElement = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >uu</span>id => {</span>
<span class="cstat-no" title="statement not covered" > return Object.keys(this.elements).includes(uuid);</span>
};
getElement = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >uu</span>id => <span class="cstat-no" title="statement not covered" >this.elements[uuid];</span></span>
isInitialised = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >()</span> => <span class="cstat-no" title="statement not covered" >this.initialised;</span></span>
getDynamicsWorld = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >()</span> => <span class="cstat-no" title="statement not covered" >this.dynamicsWorld;</span></span>
addRigidBody = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >bo</span>dy => {</span>
<span class="cstat-no" title="statement not covered" > this.dynamicsWorld.addRigidBody(body);</span>
};
addAction = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >ac</span>tion => {</span>
<span class="cstat-no" title="statement not covered" > this.dynamicsWorld.addAction(action);</span>
};
addCollisionObject = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >co</span>llisionObject => {</span>
<span class="cstat-no" title="statement not covered" > this.dynamicsWorld.addCollisionObject(collisionObject);</span>
};
stepSimulation = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >dt</span> => {</span>
<span class="cstat-no" title="statement not covered" > this.dynamicsWorld.stepSimulation(dt);</span>
};
simulate = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >()</span> => {</span>
const dt = <span class="cstat-no" title="statement not covered" >this.clock.getDelta();</span>
<span class="cstat-no" title="statement not covered" > this.stepSimulation(dt);</span>
<span class="cstat-no" title="statement not covered" > Object.keys(this.elements).forEach(<span class="fstat-no" title="function not covered" >uu</span>id => {</span>
const element = <span class="cstat-no" title="statement not covered" >this.getElement(uuid);</span>
<span class="cstat-no" title="statement not covered" > if (element) {</span>
<span class="cstat-no" title="statement not covered" > switch (element.type) {</span>
case TYPES.BOX:
case TYPES.SPHERE:
case TYPES.MESH:
<span class="cstat-no" title="statement not covered" > handleElementUpdate(element, dt);</span>
<span class="cstat-no" title="statement not covered" > break;</span>
case TYPES.PLAYER:
<span class="cstat-no" title="statement not covered" > handlePlayerUpdate(element, dt);</span>
<span class="cstat-no" title="statement not covered" > break;</span>
case TYPES.VEHICLE:
<span class="cstat-no" title="statement not covered" > handleVehicleUpdate(element, dt);</span>
<span class="cstat-no" title="statement not covered" > break;</span>
default:
<span class="cstat-no" title="statement not covered" > break;</span>
}
}
});
<span class="cstat-no" title="statement not covered" > this.calculateCollisions();</span>
<span class="cstat-no" title="statement not covered" > this.removeDeletedElements();</span>
<span class="cstat-no" title="statement not covered" > dispatcher.sendPhysicsUpdate(dt);</span>
<span class="cstat-no" title="statement not covered" > this.requestAnimationFrameId = requestNextFrame(this.simulate.bind(this));</span>
};
calculateCollisions = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >()</span> => {</span>
let ammoDispatcher = <span class="cstat-no" title="statement not covered" >this.dynamicsWorld.getDispatcher();</span>
let numManifolds = <span class="cstat-no" title="statement not covered" >ammoDispatcher.getNumManifolds();</span>
<span class="cstat-no" title="statement not covered" > for (let i = <span class="cstat-no" title="statement not covered" >0;</span> i < numManifolds; i++) {</span>
let contactManifold = <span class="cstat-no" title="statement not covered" >ammoDispatcher.getManifoldByIndexInternal(i);</span>
let rb0 = <span class="cstat-no" title="statement not covered" >Ammo.castObject(contactManifold.getBody0(), Ammo.btRigidBody);</span>
let rb1 = <span class="cstat-no" title="statement not covered" >Ammo.castObject(contactManifold.getBody1(), Ammo.btRigidBody);</span>
let numContacts = <span class="cstat-no" title="statement not covered" >contactManifold.getNumContacts();</span>
// this iteration doesn't have uuids
<span class="cstat-no" title="statement not covered" > if (!rb0.uuid || !rb1.uuid) <span class="cstat-no" title="statement not covered" >continue;</span></span>
let contacts = <span class="cstat-no" title="statement not covered" >[];</span>
<span class="cstat-no" title="statement not covered" > for (let j = <span class="cstat-no" title="statement not covered" >0;</span> j < numContacts; j++) {</span>
let contactPoint = <span class="cstat-no" title="statement not covered" >contactManifold.getContactPoint(j);</span>
let distance = <span class="cstat-no" title="statement not covered" >contactPoint.getDistance();</span>
<span class="cstat-no" title="statement not covered" > if (distance > 0.0) <span class="cstat-no" title="statement not covered" >continue;</span></span>
let velocity0 = <span class="cstat-no" title="statement not covered" >rb0.getLinearVelocity();</span>
let velocity1 = <span class="cstat-no" title="statement not covered" >rb1.getLinearVelocity();</span>
let worldPos0 = <span class="cstat-no" title="statement not covered" >contactPoint.get_m_positionWorldOnA();</span>
let worldPos1 = <span class="cstat-no" title="statement not covered" >contactPoint.get_m_positionWorldOnB();</span>
let localPos0 = <span class="cstat-no" title="statement not covered" >contactPoint.get_m_localPointA();</span>
let localPos1 = <span class="cstat-no" title="statement not covered" >contactPoint.get_m_localPointB();</span>
<span class="cstat-no" title="statement not covered" > contacts.push({</span>
distance,
elements: [
{
uuid: rb0.uuid,
velocity: { x: velocity0.x(), y: velocity0.y(), z: velocity0.z() },
worldPos: { x: worldPos0.x(), y: worldPos0.y(), z: worldPos0.z() },
localPos: { x: localPos0.x(), y: localPos0.y(), z: localPos0.z() },
},
{
uuid: rb1.uuid,
velocity: { x: velocity1.x(), y: velocity1.y(), z: velocity1.z() },
worldPos: { x: worldPos1.x(), y: worldPos1.y(), z: worldPos1.z() },
localPos: { x: localPos1.x(), y: localPos1.y(), z: localPos1.z() },
},
],
});
}
<span class="cstat-no" title="statement not covered" > dispatcher.sendDispatchEvent(rb0.uuid, PHYSICS_EVENTS.ELEMENT.COLLISION, { contacts });</span>
<span class="cstat-no" title="statement not covered" > dispatcher.sendDispatchEvent(rb1.uuid, PHYSICS_EVENTS.ELEMENT.COLLISION, { contacts });</span>
}
};
addElement = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >da</span>ta => {</span>
<span class="cstat-no" title="statement not covered" > this.elements[data.uuid] = data;</span>
};
updateBodyState = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >({</span> uuid, state }) => {</span>
<span class="cstat-no" title="statement not covered" > if (this.hasElement(uuid)) {</span>
<span class="cstat-no" title="statement not covered" > this.elements[uuid].state = {</span>
...this.elements[uuid].state,
...state,
};
}
};
<span class="fstat-no" title="function not covered" > di</span>sposeBody({ uuid }) {
const element = <span class="cstat-no" title="statement not covered" >this.getElement(uuid);</span>
<span class="cstat-no" title="statement not covered" > this.dynamicsWorld.removeRigidBody(element.body);</span>
<span class="cstat-no" title="statement not covered" > this.removeElement(uuid);</span>
<span class="cstat-no" title="statement not covered" > dispatcher.sendElementDisposed({ uuid });</span>
}
terminate = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >()</span> => {</span>
<span class="cstat-no" title="statement not covered" > Ammo.destroy(this.dynamicsWorld);</span>
<span class="cstat-no" title="statement not covered" > Ammo.destroy(this.solver);</span>
<span class="cstat-no" title="statement not covered" > Ammo.destroy(this.dispatcher);</span>
<span class="cstat-no" title="statement not covered" > Ammo.destroy(this.collisionConfiguration);</span>
<span class="cstat-no" title="statement not covered" > cancelAnimationFrame(this.requestAnimationFrameId);</span>
<span class="cstat-no" title="statement not covered" > dispatcher.sendTerminateEvent();</span>
};
}
export default new World();
</pre></td></tr></table></pre>
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