bridge.as

APE音频格式编解码源代码

package {
	
	import org.cove.ape.*;
	
	public class Bridge extends Group {
		
		public function Bridge(colB:uint, colC:uint, colD:uint) {	
			
			// just a cut and paste class here. everything should be parameterized 
			// if you want to do it the right way, eg locations, section size, etc
		
			var bx:Number = 170;
			var by:Number = 40;
			var bsize:Number = 51.5;
			var yslope:Number = 2.4;
			var particleSize:Number = 4;
			
			var bridgePAA:CircleParticle = new CircleParticle(bx,by,particleSize,true);
			bridgePAA.setStyle(1, colC, 1, colB);
			addParticle(bridgePAA);
			
			bx += bsize;
			by += yslope;
			var bridgePA:CircleParticle = new CircleParticle(bx,by,particleSize);
			bridgePA.setStyle(1, colC, 1, colB);
			addParticle(bridgePA);
			
			bx += bsize;
			by += yslope;
			var bridgePB:CircleParticle = new CircleParticle(bx,by,particleSize);
			bridgePB.setStyle(1, colC, 1, colB);
			addParticle(bridgePB);
			
			bx += bsize;
			by += yslope;
			var bridgePC:CircleParticle = new CircleParticle(bx,by,particleSize);
			bridgePC.setStyle(1, colC, 1, colB);
			addParticle(bridgePC);
			
			bx += bsize;
			by += yslope;
			var bridgePD:CircleParticle = new CircleParticle(bx,by,particleSize);
			bridgePD.setStyle(1, colC, 1, colB);
			addParticle(bridgePD);
			
			bx += bsize;
			by += yslope;
			var bridgePDD:CircleParticle = new CircleParticle(bx,by,particleSize,true);
			bridgePDD.setStyle(1, colC, 1, colB);
			addParticle(bridgePDD);
			
			
			var bridgeConnA:SpringConstraint = new SpringConstraint(bridgePAA, bridgePA, 
					0.9, true, 10, 0.8);
			
			// collision response on the bridgeConnA will be ignored on 
			// on the first 1/4 of the constraint. this avoids blow ups
			// particular to springcontraints that have 1 fixed particle.
			bridgeConnA.fixedEndLimit = 0.25;
			bridgeConnA.setStyle(1, colC, 1, colB);
			addConstraint(bridgeConnA);
			
			var bridgeConnB:SpringConstraint = new SpringConstraint(bridgePA, bridgePB, 
					0.9, true, 10, 0.8);
			bridgeConnB.setStyle(1, colC, 1, colB);
			addConstraint(bridgeConnB);
			
			var bridgeConnC:SpringConstraint = new SpringConstraint(bridgePB, bridgePC, 
					0.9, true, 10, 0.8);
			bridgeConnC.setStyle(1, colC, 1, colB);
			addConstraint(bridgeConnC);
			
			var bridgeConnD:SpringConstraint = new SpringConstraint(bridgePC, bridgePD,
					0.9, true, 10, 0.8);
			bridgeConnD.setStyle(1, colC, 1, colB);
			addConstraint(bridgeConnD);
			
			var bridgeConnE:SpringConstraint = new SpringConstraint(bridgePD, bridgePDD, 
					0.9, true, 10, 0.8);
			bridgeConnE.fixedEndLimit = 0.25;
			bridgeConnE.setStyle(1, colC, 1, colB);
			addConstraint(bridgeConnE);
		}
	}
}