/* 酷站代码整理 转载请注明出处 http://www.5icool.org */
jQuery.extend(jQuery.roundaboutShapes,
{
	theJuggler: function(r, a, t) {	
		return {
			x: Math.sin(r + a), 
			y: Math.tan(Math.exp(Math.log(r)) + a) / (t - 1), 
			z: (Math.cos(r + a) + 1) / 2,
			scale: (Math.sin(r + Math.PI/2 + a) / 2) + 0.5
		};
	},
	figure8: function(r, a, t) {
		return {
			x: Math.sin(r * 2 + a), 
			y: (Math.sin(r + Math.PI/2 + a) / 8) * t, 
			z: (Math.cos(r + a) + 1) / 2,
			scale: (Math.sin(r + Math.PI/2 + a) / 2) + 0.5
		};
	},
	waterWheel: function(r, a, t) {
		return {
			x: (Math.sin(r + Math.PI/2 + a) / 8) * t, 
			y: Math.sin(r + a) / (Math.PI/2), 
			z: (Math.cos(r + a) + 1) / 2,
			scale: (Math.sin(r + Math.PI/2 + a) / 2) + 0.5
		};
	},
	square: function(r, a, t) {
		var sq_x, sq_y, sq_z;
		
		if (r <= Math.PI/2) {
			sq_x = (2/Math.PI) * r;
			sq_y = -(2/Math.PI) * r + 1;
			sq_z = -(1/Math.PI) * r + 1;
		} else if (r > Math.PI/2 && r <= Math.PI) {
			sq_x = -(2/Math.PI) * r + 2;
			sq_y = -(2/Math.PI) * r + 1;
			sq_z = -(1/Math.PI) * r + 1;
		} else if (r > Math.PI && r <= (3 * Math.PI) / 2) {
			sq_x = -(2/Math.PI) * r + 2;
			sq_y = (2/Math.PI) * r - 3;
			sq_z = (1/Math.PI) * r - 1;
		} else {
			sq_x = (2/Math.PI) * r - 4;
			sq_y = (2/Math.PI) * r - 3;
			sq_z = (1/Math.PI) * r - 1;
		}
		
		return {
			x: sq_x,
			y: sq_y * t, 
			z: sq_z,
			scale: sq_z
		};
	},
	conveyorBeltLeft: function(r, a, t) {
		return {
			x: -Math.cos(r + a), 
			y: (Math.cos(r + 3*Math.PI/2 + a) / 8) * t, 
			z: (Math.sin(r + a) + 1) / 2,
			scale: (Math.sin(r + Math.PI/2 + a) / 2) + 0.5
		};
	},
	conveyorBeltRight: function(r, a, t) {
		return {
			x: Math.cos(r + a), 
			y: (Math.cos(r + 3*Math.PI/2 + a) / 8) * t, 
			z: (Math.sin(r + a) + 1) / 2,
			scale: (Math.sin(r + Math.PI/2 + a) / 2) + 0.5
		};
	},
	goodbyeCruelWorld: function(r, a, t) {
		return {
			x: Math.sin(r + a), 
			y: (Math.tan(r + 3*Math.PI/2 + a) / 8) * (t + 0.5), 
			z: (Math.sin(r + a) + 1) / 2,
			scale: (Math.sin(r + Math.PI/2 + a) / 2) + 0.5
		};
	},
	diagonalRingLeft: function(r, a, t) {
		return {
			x: Math.sin(r + a), 
			y: -Math.cos(r + Math.tan(Math.cos(a))) / (t + 1.5), 
			z: (Math.cos(r + a) + 1) / 2,
			scale: (Math.sin(r + Math.PI/2 + a) / 2) + 0.5
		};
	},
	diagonalRingRight: function(r, a, t) {
		return {
			x: Math.sin(r + a), 
			y: Math.cos(r + Math.tan(Math.cos(a))) / (t + 1.5), 
			z: (Math.cos(r + a) + 1) / 2,
			scale: (Math.sin(r + Math.PI/2 + a) / 2) + 0.5
		};
	},
	rollerCoaster: function(r, a, t) {
		return {
			x: Math.sin(r + a), 
			y: Math.sin((2 + t) * r), 
			z: (Math.cos(r + a) + 1) / 2,
			scale: (Math.sin(r + Math.PI/2 + a) / 2) + 0.5
		};
	},
	tearDrop: function(r, a, t) {
		return {
			x: Math.sin(r + a), 
			y: -Math.sin(r/2 + t) + 0.35, 
			z: (Math.cos(r + a) + 1) / 2,
			scale: (Math.sin(r + Math.PI/2 + a) / 2) + 0.5
		};
	},
	tickingClock: function(r, a, t) {
		return {
			x: Math.cos(r + a - Math.PI/2),
			y: Math.sin(r + a - Math.PI/2),
			z: Math.cos(r),
			scale: Math.cos(r) + 0.5
		}
	},
	flurry: function(r, a, t) {
		return {
			x: Math.sin(r * 3 + a), 
			y: (Math.cos(r + Math.PI/2 + a) / 2) * t, 
			z: (Math.cos(r + a) + 1) / 2,
			scale: (Math.sin(r + Math.PI/2 + a) / 2) + 0.5
		};
	},
	nowSlide: function(r, a, t) {
		return {
			x: Math.tan(r * 2 + a) * 0.5, 
			y: Math.cos(r*2 + t) / 6, 
			z: (Math.cos(r + a) + 1) / 2,
			scale: (Math.sin(r + Math.PI/2 + a) / 2) + 0.5
		};
	},
	risingEssence: function(r, a, t) {
		return {
			x: Math.sin(r + a), 
			y: Math.tan((2 + t) * r), 
			z: (Math.cos(r + a) + 1) / 2,
			scale: (Math.sin(r + Math.PI/2 + a) / 2) + 0.5
		};
	}
});