trackrender.java

联机坦克游戏

/*
 * Created on 2005-3-10
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package tankgame;

import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.util.Vector;

import resource.ResourceFactory;

import components.*;


/**
 * @author Emtry Immortal
 * 
 * TODO To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
public class TrackRender implements ICamera {
	private Vector vContainer = null;

	private BufferedImage bffImage;
	
	private BufferedImage bffImage2;

	private int width;

	private int height;

	private int top;

	private int left;

	private GmMovComponent gmcPoint=null;

	private int dhWidth;

	private int dhHeight;
	
	private boolean bFlag = true;
	
	RenderingHints renderingHints;
	//Graphics2D gObj;
	Graphics2D g2D1;
	Graphics2D g2D2;
	
	public TrackRender(int width, int height, GmMovComponent gmc,
			Vector vContainer) {
		bffImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
		bffImage2 = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
		this.width = width;
		dhWidth = width / 2;
		this.height = height;
		dhHeight = height / 2;

		gmcPoint = gmc;
		this.vContainer = vContainer;
		renderingHints=ResourceFactory.
						getInstance().getRenderingHints();
		g2D1=(Graphics2D)bffImage.getGraphics();
		g2D1.setRenderingHints(renderingHints);
		g2D2=(Graphics2D)bffImage2.getGraphics();
		g2D2.setRenderingHints(renderingHints);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see tankgame.ICamera#getGmcPointX()
	 */
	public int getGmcPointX() {
		return dhWidth;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see tankgame.ICamera#getGmcPointY()
	 */
	public int getGmcPointY() {
		return dhHeight;
	}

	public void setGmcPoint(Tank tnk) {
		this.gmcPoint = tnk;
	}

	public void setContainer(Vector vContainer) {
		this.vContainer = vContainer;
	}

	public Image getViewImage() {
		Image img;
		if(bFlag){
			view(g2D1);
			img=bffImage;
		}else{
			view(g2D2);
			img=bffImage2;
		}
		bFlag=!bFlag;
		return img;
	}

	public void view(Graphics2D g2D) {
		g2D.fillRect(0,0,width,height);
		double dCenterX,dCenterY;
		if(gmcPoint==null){
			dCenterX=0;
			dCenterY=0;
		}else{
			dCenterX = this.gmcPoint.getPtX();
			dCenterY = this.gmcPoint.getPtY();
		}
		top = (int) Math.ceil(dCenterY - (dhHeight));
		left = (int) Math.ceil(dCenterX - (dhWidth));
		for (int i = 0; i < vContainer.size(); i++) {
			IScriptRender gmcObj = ((IScriptRender) vContainer.get(i));
			if(gmcObj.isRenderable(left, top, width, height)){
				gmcObj.renderImage(g2D, left, top, width, height);
			}
		}
		String str = "pos:" + (int)Math.ceil(dCenterX) +
					 ","+ (int)Math.ceil(dCenterY);
		g2D.drawString(str, 10, 10);
	}
}