mirror of
https://github.com/logsol/chuck.js.git
synced 2026-05-11 10:37:34 +00:00
416 lines
14 KiB
JavaScript
416 lines
14 KiB
JavaScript
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Object.prototype.hasOwnProperty = function(property) {
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return typeof(this[property]) !== 'undefined'
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};
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function loadBodyFromRUBE(bodyJso, world) {
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//console.log(bodyJso);
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if ( ! bodyJso.hasOwnProperty('type') ) {
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console.log("Body does not have a 'type' property");
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return null;
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}
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var bd = new b2BodyDef();
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if ( bodyJso.type == 2 )
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bd.type = b2_dynamicBody;
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else if ( bodyJso.type == 1 )
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bd.type = b2_kinematicBody;
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if ( bodyJso.hasOwnProperty('angle') )
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bd.angle = bodyJso.angle;
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if ( bodyJso.hasOwnProperty('angularVelocity') )
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bd.angularVelocity = bodyJso.angularVelocity;
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if ( bodyJso.hasOwnProperty('active') )
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bd.awake = bodyJso.active;
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if ( bodyJso.hasOwnProperty('fixedRotation') )
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bd.fixedRotation = bodyJso.fixedRotation;
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if ( bodyJso.hasOwnProperty('linearVelocity') && bodyJso.linearVelocity instanceof Object )
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bd.linearVelocity.SetV( bodyJso.linearVelocity );
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if ( bodyJso.hasOwnProperty('position') && bodyJso.position instanceof Object )
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bd.position.SetV( bodyJso.position );
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if ( bodyJso.hasOwnProperty('awake') )
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bd.awake = bodyJso.awake;
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else
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bd.awake = false;
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var body = world.CreateBody(bd);
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if ( bodyJso.hasOwnProperty('fixture') ) {
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for (k = 0; k < bodyJso['fixture'].length; k++) {
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var fixtureJso = bodyJso['fixture'][k];
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loadFixtureFromRUBE(body, fixtureJso);
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}
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}
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if ( bodyJso.hasOwnProperty('name') )
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body.name = bodyJso.name;
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if ( bodyJso.hasOwnProperty('customProperties') )
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body.customProperties = bodyJso.customProperties;
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return body;
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}
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function loadFixtureFromRUBE(body, fixtureJso) {
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//console.log(fixtureJso);
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var fd = new b2FixtureDef();
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if (fixtureJso.hasOwnProperty('friction'))
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fd.friction = fixtureJso.friction;
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if (fixtureJso.hasOwnProperty('density'))
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fd.density = fixtureJso.density;
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if (fixtureJso.hasOwnProperty('restitution'))
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fd.restitution = fixtureJso.restitution;
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if (fixtureJso.hasOwnProperty('sensor'))
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fd.isSensor = fixtureJso.sensor;
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if ( fixtureJso.hasOwnProperty('filter-categoryBits') )
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fd.filter.categoryBits = fixtureJso['filter-categoryBits'];
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if ( fixtureJso.hasOwnProperty('filter-maskBits') )
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fd.filter.maskBits = fixtureJso['filter-maskBits'];
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if ( fixtureJso.hasOwnProperty('filter-groupIndex') )
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fd.filter.groupIndex = fixtureJso['filter-groupIndex'];
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if (fixtureJso.hasOwnProperty('circle')) {
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fd.shape = new b2CircleShape();
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fd.shape.m_radius = fixtureJso.circle.radius;
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if ( fixtureJso.circle.center )
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fd.shape.m_p.SetV(fixtureJso.circle.center);
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var fixture = body.CreateFixture(fd);
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if ( fixtureJso.name )
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fixture.name = fixtureJso.name;
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}
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else if (fixtureJso.hasOwnProperty('polygon')) {
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fd.shape = new b2PolygonShape();
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var verts = [];
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for (v = 0; v < fixtureJso.polygon.vertices.x.length; v++)
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verts.push( new b2Vec2( fixtureJso.polygon.vertices.x[v], fixtureJso.polygon.vertices.y[v] ) );
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fd.shape.SetAsArray(verts, verts.length);
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var fixture = body.CreateFixture(fd);
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if ( fixture && fixtureJso.name )
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fixture.name = fixtureJso.name;
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}
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else if (fixtureJso.hasOwnProperty('chain')) {
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fd.shape = new b2PolygonShape();
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var lastVertex = new b2Vec2();
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for (v = 0; v < fixtureJso.chain.vertices.x.length; v++) {
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var thisVertex = new b2Vec2( fixtureJso.chain.vertices.x[v], fixtureJso.chain.vertices.y[v] );
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if ( v > 0 ) {
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fd.shape.SetAsEdge( lastVertex, thisVertex );
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var fixture = body.CreateFixture(fd);
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if ( fixtureJso.name )
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fixture.name = fixtureJso.name;
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}
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lastVertex = thisVertex;
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}
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}
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else {
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console.log("Could not find shape type for fixture");
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}
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}
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function getVectorValue(val) {
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if ( val instanceof Object )
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return val;
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else
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return { x:0, y:0 };
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}
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function loadJointCommonProperties(jd, jointJso, loadedBodies) {
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jd.bodyA = loadedBodies[jointJso.bodyA];
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jd.bodyB = loadedBodies[jointJso.bodyB];
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jd.localAnchorA.SetV( getVectorValue(jointJso.anchorA) );
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jd.localAnchorB.SetV( getVectorValue(jointJso.anchorB) );
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if ( jointJso.collideConnected )
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jd.collideConnected = jointJso.collideConnected;
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}
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function loadJointFromRUBE(jointJso, world, loadedBodies)
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{
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if ( ! jointJso.hasOwnProperty('type') ) {
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console.log("Joint does not have a 'type' property");
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return null;
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}
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if ( jointJso.bodyA >= loadedBodies.length ) {
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console.log("Index for bodyA is invalid: " + jointJso.bodyA );
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return null;
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}
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if ( jointJso.bodyB >= loadedBodies.length ) {
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console.log("Index for bodyB is invalid: " + jointJso.bodyB );
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return null;
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}
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var joint = null;
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if ( jointJso.type == "revolute" ) {
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var jd = new b2RevoluteJointDef();
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loadJointCommonProperties(jd, jointJso, loadedBodies);
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if ( jointJso.hasOwnProperty('refAngle') )
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jd.referenceAngle = jointJso.refAngle;
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if ( jointJso.hasOwnProperty('lowerLimit') )
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jd.lowerAngle = jointJso.lowerLimit;
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if ( jointJso.hasOwnProperty('upperLimit') )
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jd.upperAngle = jointJso.upperLimit;
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if ( jointJso.hasOwnProperty('maxMotorTorque') )
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jd.maxMotorTorque = jointJso.maxMotorTorque;
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if ( jointJso.hasOwnProperty('motorSpeed') )
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jd.motorSpeed = jointJso.motorSpeed;
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if ( jointJso.hasOwnProperty('enableLimit') )
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jd.enableLimit = jointJso.enableLimit;
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if ( jointJso.hasOwnProperty('enableMotor') )
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jd.enableMotor = jointJso.enableMotor;
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joint = world.CreateJoint(jd);
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}
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else if ( jointJso.type == "distance" || jointJso.type == "rope" ) {
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if ( jointJso.type == "rope" )
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console.log("Replacing unsupported rope joint with distance joint!");
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var jd = new b2DistanceJointDef();
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loadJointCommonProperties(jd, jointJso, loadedBodies);
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if ( jointJso.hasOwnProperty('length') )
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jd.length = jointJso.length;
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if ( jointJso.hasOwnProperty('dampingRatio') )
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jd.dampingRatio = jointJso.dampingRatio;
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if ( jointJso.hasOwnProperty('frequency') )
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jd.frequencyHz = jointJso.frequency;
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joint = world.CreateJoint(jd);
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}
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else if ( jointJso.type == "prismatic" ) {
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var jd = new b2PrismaticJointDef();
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loadJointCommonProperties(jd, jointJso, loadedBodies);
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if ( jointJso.hasOwnProperty('localAxisA') )
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jd.localAxisA.SetV( getVectorValue(jointJso.localAxisA) );
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if ( jointJso.hasOwnProperty('refAngle') )
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jd.referenceAngle = jointJso.refAngle;
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if ( jointJso.hasOwnProperty('enableLimit') )
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jd.enableLimit = jointJso.enableLimit;
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if ( jointJso.hasOwnProperty('lowerLimit') )
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jd.lowerTranslation = jointJso.lowerLimit;
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if ( jointJso.hasOwnProperty('upperLimit') )
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jd.upperTranslation = jointJso.upperLimit;
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if ( jointJso.hasOwnProperty('enableMotor') )
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jd.enableMotor = jointJso.enableMotor;
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if ( jointJso.hasOwnProperty('maxMotorForce') )
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jd.maxMotorForce = jointJso.maxMotorForce;
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if ( jointJso.hasOwnProperty('motorSpeed') )
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jd.motorSpeed = jointJso.motorSpeed;
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joint = world.CreateJoint(jd);
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}
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else if ( jointJso.type == "wheel" ) {
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//Make a fake wheel joint using a line joint and a distance joint.
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//Return the line joint because it has the linear motor controls.
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//Use ApplyTorque on the bodies to spin the wheel...
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var jd = new b2DistanceJointDef();
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loadJointCommonProperties(jd, jointJso, loadedBodies);
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jd.length = 0.0;
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if ( jointJso.hasOwnProperty('springDampingRatio') )
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jd.dampingRatio = jointJso.springDampingRatio;
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if ( jointJso.hasOwnProperty('springFrequency') )
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jd.frequencyHz = jointJso.springFrequency;
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world.CreateJoint(jd);
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jd = new b2LineJointDef();
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loadJointCommonProperties(jd, jointJso, loadedBodies);
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if ( jointJso.hasOwnProperty('localAxisA') )
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jd.localAxisA.SetV( getVectorValue(jointJso.localAxisA) );
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joint = world.CreateJoint(jd);
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}
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else if ( jointJso.type == "friction" ) {
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var jd = new b2FrictionJointDef();
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loadJointCommonProperties(jd, jointJso, loadedBodies);
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if ( jointJso.hasOwnProperty('maxForce') )
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jd.maxForce = jointJso.maxForce;
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if ( jointJso.hasOwnProperty('maxTorque') )
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jd.maxTorque = jointJso.maxTorque;
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joint = world.CreateJoint(jd);
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}
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else if ( jointJso.type == "weld" ) {
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var jd = new b2WeldJointDef();
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loadJointCommonProperties(jd, jointJso, loadedBodies);
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if ( jointJso.hasOwnProperty('referenceAngle') )
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jd.referenceAngle = jointJso.referenceAngle;
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joint = world.CreateJoint(jd);
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}
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else {
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console.log("Unsupported joint type: " + jointJso.type);
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console.log(jointJso);
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}
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if ( joint && jointJso.name )
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joint.name = jointJso.name;
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return joint;
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}
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function makeClone(obj) {
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var newObj = (obj instanceof Array) ? [] : {};
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for (var i in obj) {
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if (obj[i] && typeof obj[i] == "object")
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newObj[i] = makeClone(obj[i]);
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else
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newObj[i] = obj[i];
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}
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return newObj;
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};
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function loadImageFromRUBE(imageJso, world, loadedBodies)
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{
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var image = makeClone(imageJso);
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if ( image.hasOwnProperty('body') && image.body >= 0 )
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image.body = loadedBodies[image.body];//change index to the actual body
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else
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image.body = null;
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image.center = new b2Vec2();
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image.center.SetV( getVectorValue(imageJso.center) );
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return image;
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}
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//mainly just a convenience for the testbed - uses global 'world' variable
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function loadSceneFromRUBE(worldJso) {
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return loadSceneIntoWorld(worldJso, world);
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}
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//load the scene into an already existing world variable
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function loadSceneIntoWorld(worldJso, world) {
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var success = true;
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var loadedBodies = [];
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if ( worldJso.hasOwnProperty('body') ) {
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for (var i = 0; i < worldJso.body.length; i++) {
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var bodyJso = worldJso.body[i];
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var body = loadBodyFromRUBE(bodyJso, world);
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if ( body )
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loadedBodies.push( body );
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else
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success = false;
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}
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}
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var loadedJoints = [];
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if ( worldJso.hasOwnProperty('joint') ) {
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for (var i = 0; i < worldJso.joint.length; i++) {
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var jointJso = worldJso.joint[i];
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var joint = loadJointFromRUBE(jointJso, world, loadedBodies);
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if ( joint )
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loadedJoints.push( joint );
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//else
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// success = false;
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}
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}
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var loadedImages = [];
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if ( worldJso.hasOwnProperty('image') ) {
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for (var i = 0; i < worldJso.image.length; i++) {
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var imageJso = worldJso.image[i];
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var image = loadImageFromRUBE(imageJso, world, loadedBodies);
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if ( image )
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loadedImages.push( image );
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else
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success = false;
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}
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world.images = loadedImages;
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}
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return success;
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}
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//create a world variable and return it if loading succeeds
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function loadWorldFromRUBE(worldJso) {
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var gravity = new b2Vec2(0,0);
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if ( worldJso.hasOwnProperty('gravity') && worldJso.gravity instanceof Object )
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gravity.SetV( worldJso.gravity );
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var world = new b2World( gravity );
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if ( ! loadSceneIntoWorld(worldJso, world) )
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return false;
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return world;
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}
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function getNamedBodies(world, name) {
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var bodies = [];
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for (b = world.m_bodyList; b; b = b.m_next) {
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if ( b.name == name )
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bodies.push(b);
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}
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return bodies;
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}
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function getNamedFixtures(world, name) {
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var fixtures = [];
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for (b = world.m_bodyList; b; b = b.m_next) {
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for (f = b.m_fixtureList; f; f = f.m_next) {
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if ( f.name == name )
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fixtures.push(f);
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}
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}
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return fixtures;
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}
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function getNamedJoints(world, name) {
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var joints = [];
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for (j = world.m_jointList; j; j = j.m_next) {
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if ( j.name == name )
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joints.push(j);
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}
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return joints;
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}
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function getNamedImages(world, name) {
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var images = [];
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for (i = 0; i < world.images.length; i++) {
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if ( world.images[i].name == name )
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images.push(world.images[i].name);
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}
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return images;
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}
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//custom properties
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function getBodiesByCustomProperty(world, propertyType, propertyName, valueToMatch) {
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var bodies = [];
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for (b = world.m_bodyList; b; b = b.m_next) {
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if ( ! b.hasOwnProperty('customProperties') )
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continue;
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for (var i = 0; i < b.customProperties.length; i++) {
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if ( ! b.customProperties[i].hasOwnProperty("name") )
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continue;
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if ( ! b.customProperties[i].hasOwnProperty(propertyType) )
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continue;
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if ( b.customProperties[i].name == propertyName &&
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b.customProperties[i][propertyType] == valueToMatch)
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bodies.push(b);
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}
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}
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return bodies;
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}
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function hasCustomProperty(item, propertyType, propertyName) {
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if ( !item.hasOwnProperty('customProperties') )
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return false;
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for (var i = 0; i < item.customProperties.length; i++) {
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if ( ! item.customProperties[i].hasOwnProperty("name") )
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continue;
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if ( ! item.customProperties[i].hasOwnProperty(propertyType) )
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continue;
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return true;
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}
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return false;
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}
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function getCustomProperty(item, propertyType, propertyName, defaultValue) {
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if ( !item.hasOwnProperty('customProperties') )
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return defaultValue;
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for (var i = 0; i < item.customProperties.length; i++) {
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if ( ! item.customProperties[i].hasOwnProperty("name") )
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continue;
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if ( ! item.customProperties[i].hasOwnProperty(propertyType) )
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continue;
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if ( item.customProperties[i].name == propertyName )
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return item.customProperties[i][propertyType];
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}
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return defaultValue;
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}
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