phaser/wip/verlet/PinConstraint.ts

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/// <reference path="../Game.ts" />
/// <reference path="Particle.ts" />
/// <reference path="../geom/Vector2.ts" />
/**
* Phaser - PinConstraint
*
* Constrains to static / fixed point
*/
module Phaser.Verlet {
export class PinConstraint {
/**
* Creates a new PinConstraint object.
* @class PinConstraint
* @constructor
* @param {Number} x The x coordinate of vector2
* @param {Number} y The y coordinate of vector2
* @return {PinConstraint} This object
**/
constructor(a: Phaser.Verlet.Particle, pos: Vector2) {
this.a = a;
this.pos = (new Vector2()).mutableSet(pos);
}
public a: Phaser.Verlet.Particle;
public pos: Vector2;
public relax() {
this.a.pos.mutableSet(this.pos);
}
public render(ctx) {
ctx.beginPath();
ctx.arc(this.pos.x, this.pos.y, 6, 0, 2*Math.PI);
ctx.fillStyle = "rgba(0,153,255,0.1)";
ctx.fill();
}
}
}