149 lines
2.5 KiB
JavaScript
149 lines
2.5 KiB
JavaScript
(function(
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Engine,
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Point,
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Polygon,
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Vector
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){
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Engine.Shape = function(x, y, width, height, points, polygons){
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var i, ref, point, poly;
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this.pos = new Vector(x, y);
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this.size = new Vector(width, height);
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this.sizeRef = this.size.clone();
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ref = {};
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this.points = [];
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this.polygons = [];
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for (i = 0; i < points.length; i++) {
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point = new Point(
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points[i].id,
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points[i].x,
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points[i].y,
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this.size
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);
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ref[point.id] = point;
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this.points.push(point);
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}
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for (i = 0; i < polygons.length; i++) {
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poly = polygons[i];
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this.polygons.push(new Polygon(
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ref[poly.points[0]],
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ref[poly.points[1]],
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ref[poly.points[2]],
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poly.color
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));
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}
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};
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Engine.Shape.prototype = {
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breathing: false,
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breath: 0,
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breathLength: 1,
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breatheIn: false,
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startBreathing: function(){
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var p;
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this.breathing = true;
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this.breath = this.breathLength;
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for (p = 0; p < this.points.length; p++) {
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this.points[p].updateBreathingPhysics();
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}
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},
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breathe: function(tick){
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var p, scale, newSize;
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this.breath += tick;
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if (this.breath < this.breathLength) {
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return;
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}
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if (this.breatheIn) {
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scale = 1;
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} else {
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scale = 1.05;
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}
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this.breatheIn = !this.breatheIn;
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newSize = Vector.mult(this.sizeRef, scale);
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for (p = 0; p < this.points.length; p++) {
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this.points[p].updateTarget(newSize);
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}
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this.breath = 0;
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},
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update: function(engine){
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var p;
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if (this.breathing === true) {
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this.breathe(engine.tick);
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}
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for (p = 0; p < this.points.length; p++) {
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this.points[p].update(engine);
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}
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for (p = 0; p < this.polygons.length; p++) {
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this.polygons[p].update(engine);
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}
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return this;
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},
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draw: function(ctx, scale, engine){
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var p, poly;
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ctx.translate(
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this.pos.x * scale >> 0,
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this.pos.y * scale >> 0
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);
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for (p = 0; p < this.polygons.length; p++) {
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poly = this.polygons[p];
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ctx.beginPath();
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ctx.moveTo(
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poly.a.pos.x * scale >> 0,
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poly.a.pos.y * scale >> 0
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);
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ctx.lineTo(
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poly.b.pos.x * scale >> 0,
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poly.b.pos.y * scale >> 0
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);
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ctx.lineTo(
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poly.c.pos.x * scale >> 0,
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poly.c.pos.y * scale >> 0
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);
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ctx.closePath();
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ctx.fillStyle = poly.fillStyle;
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ctx.fill();
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ctx.lineWidth = 0.25 * scale;
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ctx.strokeStyle = poly.strokeStyle;
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ctx.stroke();
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}
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ctx.setTransform(1, 0, 0, 1, 0, 0);
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ctx.translate(
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engine.width / 2 * engine.scale >> 0,
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engine.height / 2 * engine.scale >> 0
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);
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return this;
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}
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};
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})(
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window.Engine,
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window.Engine.Point,
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window.Engine.Polygon,
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window.Vector
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);
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