Quellcode

function WalkingClass() {
	this.sqrt2 = Math.sqrt(2);
	this.legList = new Array();
	this.initialize();
	this.makeLegs();
	this.makeFeet();
	this.moveToInterval = setInterval(this, "moveToDestination", 50+random(400));
	this.moveInterval = setInterval(this, "move", 30);
	this.randomInterval = setInterval(this, "setRandomDestination", 3000+random(7000));
}
WalkingClass.prototype = new MovieClip();
WalkingClass.prototype.initialize = function() {
	this.depth = 0;
	this.shake = 1+random(5);
	this.legBaseLength = 8;
	this.legLength = 20+random(80);
	this.legRise = 5+random(20);
	this.kneeRatioV = random(100)/100;
	this.kneeRatioH = random(100)/100;
	this.gait = 15+random(this.legLength);
	this.legIndex = 1;
	this.maxTheta = 50;
	this.bodyList = new Array();
	this.bodyParts = 5;
	this.bodySpread = 7;
	this.makeBody();
};
WalkingClass.prototype.getIsoX = function(x, y) {
	var isox = ((x*this.sqrt2)+(y*this.sqrt2))/2;
	return isox;
};
WalkingClass.prototype.getIsoY = function(x, y) {
	var isoy = ((y*this.sqrt2)-(x*this.sqrt2))/4;
	return isoy;
};
WalkingClass.prototype.drawLegs = function() {
	this.legs.clear();
	this.legs.lineStyle(0, 0x000000, 30);
	for (n=0; n<6; n++) {
		var isox0 = this.getIsoX(this.legList[n].ox, this.legList[n].oy);
		var isoy0 = this.getIsoY(this.legList[n].ox, this.legList[n].oy);
		var isox2 = this.getIsoX(this.legList[n].x, this.legList[n].y);
		var isoy2 = this.getIsoY(this.legList[n].x, this.legList[n].y);
		var isox1 = isox0+(isox2-isox0)*this.kneeRatioH;
		var isoy1 = isoy0+(isoy2-isoy0)*this.kneeRatioH;
		this.legs.moveTo(isox0, isoy0);
		this.legs.lineTo(isox1, isoy1-this.legRise*this.kneeRatioV);
		this.legs.lineTo(isox2, isoy2+this.legRise);
		foot = "foot"+String(n+1);
		this.legs[foot]._x = isox2;
		this.legs[foot]._y = isoy2+this.legRise;
	}
};
WalkingClass.prototype.makeLegs = function() {
	for (n=0; n<6; n++) {
		Object.leg = {ox:this.body.x, oy:this.body.y, x:this.body.x, y:this.body.y};
		this.legList.push(Object.leg);
	}
};
WalkingClass.prototype.moveLegs = function() {
	for (n=0; n<6; n++) {
		signbit = (n%2 == 0) ? -1 : 1;
		ibit = Math.floor(n/2);
		angle = this.theta+signbit*(ibit+1)*40;
		var ox = this.body.x+this.legBaseLength*Math.cos(Math.PI/180*angle);
		var oy = this.body.y+this.legBaseLength*Math.sin(Math.PI/180*angle);
		this.legList[n].ox = ox;
		this.legList[n].oy = oy;
		this.legList[n].x = (this.legList[n].x+this.legList[n].dx)/2;
		this.legList[n].y = (this.legList[n].y+this.legList[n].dy)/2;
	}
};
WalkingClass.prototype.makeBody = function() {
	this.body._yscale = 50;
	for (n=0; n<this.bodyParts; n++) {
		scale = random(80)+20;
		nombre = "bodypart"+String(this.depth++);
		if ((n == 1) || (n == 2)) {
			neo = this.body.attachMovie("mcTailShapes", nombre, this.depth);
		} else {
			neo = this.body.attachMovie("mcFeetShapes", nombre, this.depth);
		}
		neo._y = -n*this.bodySpread;
		neo.gotoAndStop(random(neo._totalframes)+1);
		neo._xscale = scale;
		neo._yscale = scale;
		neo._alpha = 80;
		this.bodyList.push(neo);
	}
};
WalkingClass.prototype.makeFeet = function() {
	foottype = random(neo._totalframes)+1;
	for (n=0; n<6; n++) {
		nombre = "foot"+String(n+1);
		neo = this.legs.attachMovie("mcFeetShapes", nombre, n+1);
		neo.gotoAndStop(foottype);
		neo._xscale = 10;
		neo._yscale = 5;
	}
};
WalkingClass.prototype.moveBody = function() {
	this.body.x += (this.body.dx-this.body.x)/5;
	this.body.y += (this.body.dy-this.body.y)/5;
	this.theta += (this.dtheta-this.theta)/10;
};
WalkingClass.prototype.drawBody = function() {
	var isox = this.getIsoX(this.body.x, this.body.y);
	var isoy = this.getIsoY(this.body.x, this.body.y);
	this.body._x = isox;
	this.body._y = isoy;
	this.mcShadow._x = isox;
	this.mcShadow._y = isoy;
	for (n=0; n<this.bodyList.length; n++) {
		neo = this.bodyList[n];
		neo._rotation = this.theta-45;
	}
};
WalkingClass.prototype.spinRandomly = function() {
	this.theta += this.vr;
	this.vr += (random(3)-1)/5;
	this.positionLegs();
	this.drawLegs();
	this.drawBody();
};
WalkingClass.prototype.setDestination = function(x, y) {
	this.dx = x;
	this.dy = y;
	if (this.atDestination) {
		this.moveToInterval = setInterval(this, "moveToDestination", 300);
	}
};
WalkingClass.prototype.setRandomDestination = function(x, y) {
	this.dx = random(600)-200;
	this.dy = random(600)-200;
	if (this.atDestination) {
		this.moveToInterval = setInterval(this, "moveToDestination", 300);
	}
};
WalkingClass.prototype.setPosition = function(x, y) {
	this.body.x = x;
	this.body.y = y;
	this.body.dx = x;
	this.body.dy = y;
	for (n=0; n<6; n++) {
		this.legList[n].dx = x;
		this.legList[n].dy = y;
		this.legList[n].x = x;
		this.legList[n].y = y;
	}
};
WalkingClass.prototype.advanceLeg = function(i) {
	var ibit = Math.floor(i/2);
	var isign = (i%2 == 0) ? -1 : 1;
	var nextx = this.body.x+this.gait*Math.cos(Math.PI / 180 * this.theta);
	var nexty = this.body.y+this.gait*Math.sin(Math.PI / 180 * this.theta);
	var rndx = (random(11)-5);
	var rndy = (random(11)-5);
	this.legList[i].dx = rndx+nextx+this.legLength*Math.cos(Math.PI / 180 * (this.theta+isign*(ibit+1)*40));
	this.legList[i].dy = rndy+nexty+this.legLength*Math.sin(Math.PI / 180 * (this.theta+isign*(ibit+1)*40));
};
WalkingClass.prototype.standUpStraight = function() {
	for (n=0; n<6; n++) {
		signbit = (n%2 == 0) ? -1 : 1;
		ibit = Math.floor(n/2);
		angle = this.theta+signbit*(ibit+1)*40;
		var ox = this.body.x+this.legBaseLength*Math.cos(Math.PI/180*angle);
		var oy = this.body.y+this.legBaseLength*Math.sin(Math.PI/180*angle);
		var dx = this.body.x+this.legLength*Math.cos(Math.PI/180*angle);
		var dy = this.body.y+this.legLength*Math.sin(Math.PI/180*angle);
		this.legList[n].ox = ox;
		this.legList[n].oy = oy;
		this.legList[n].dx = dx;
		this.legList[n].dy = dy;
	}
};
WalkingClass.prototype.moveToDestination = function() {
	distX = this.dx-this.body.x;
	distY = this.dy-this.body.y;
	distance = Math.sqrt(distX*distX+distY*distY);
	if (distance<15) {
		clearInterval(this.moveToInterval);
		this.standUpStraight();
		this.atDestination = true;
	} else {
		this.atDestination = false;
		rdTheta = Math.atan2(distY, distX);
		this.dtheta = 180 * rdTheta / Math.PI;
		if (Math.abs(this.dtheta-this.theta)>this.maxTheta) {
			if (this.dtheta<this.theta) {
				this.dtheta=this.theta-this.maxTheta;
			} else {
				this.dtheta=this.theta+this.maxTheta;
			}
		}
	}
	this.body.dx = (this.legList[0].x+this.legList[1].x)/2;
	this.body.dy = (this.legList[0].y+this.legList[1].y)/2;
	this.legIndex *= -1;
	if (this.legIndex<0) {
		this.advanceLeg(0);
		this.advanceLeg(3);
		this.advanceLeg(4);
	} else {
		this.advanceLeg(1);
		this.advanceLeg(2);
		this.advanceLeg(5);
	}
};
WalkingClass.prototype.move = function() {
	this.moveLegs();
	this.drawLegs();
	this.moveBody();
	this.drawBody();
};
Object.registerClass("mcWalker", WalkingClass);