import wildtangent.webdriver.*;
import java.math.*;

public class Dust
{
	Main Parent;
	WTContainer DustContainer;
	WTModel DustModel;
	float X=0;
	float Y=0;
	float Z=0;
	
	int ID;
	int Opacity;
	int Frame;
	float Stretch=3f;
	
	public void init(Main ParentClass){
		Parent=ParentClass;
		DustContainer=Parent.Wt.createContainer();
		DustModel = Parent.Wt.createPlane(3f,3f,false,0f,0f,1);
		DustModel.setTexture(Parent.scene.DustTex);
		DustContainer.attach(DustModel);		
		Parent.scene.Stage.addObject(DustContainer);
		DustContainer.setVisible(false);
		

	}
	
	void create(int id, float x, float y, float z){
		ID=id;
		X=x;
		Y=y;
		Z=z;
		DustContainer.setVisible(true);
		DustContainer.setPosition(X,Y,Z);
		Frame=1;		

		Stretch=.5f+(float)(Math.random()*2f);
		setFrame();
		DustModel.setAbsoluteScale(Stretch,Stretch,1);
		Opacity=100;
		DustModel.setOpacity(Opacity);
		DustContainer.setLookAt(Parent.scene.CameraView);
	}
	
	void update(int id){
		ID=id;
		Opacity-=8;
		setFrame();
		if(Parent.DetailTransparency)DustModel.setOpacity(Opacity);
		Frame++;
		if(Frame>12)destroy();
	}
	
	void destroy(){
		Dust Swap;
		DustContainer.setVisible(false);
		Swap=Parent.DustList[ID];
		Parent.DustList[ID]=Parent.DustList[Parent.DustCount-1];
		Parent.DustList[Parent.DustCount-1]=Swap;
		Parent.DustCount--;		
		DustContainer.unsetLookAt();
	}
	
	void setFrame(){
		int Row=5-(int)Math.ceil((float)Frame/4f);
		int Col=Frame-((Row-1)*4);
		DustModel.setTextureRect("front",(float)(.25f*(Col)),1f-(float)(.25f*Row),(float)(.25f*(Col-1f)),1f-(float)(.25f*(Row-1f)));		
	}
}