square.java

俄罗斯方块。适用于初学者学习。想念很好

package xn.tetris;

import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.widgets.Display;
/**
 * 组成各种造型方块的小方块类
 * 一个小方块长和宽均为30象素
 * */

public class Square {

	private int x;
	private int y;
	private Color squareColor;
	private Color borderColor;
	private int blockType;
	private GC gc;
	private Display display;
	final static int LENGTH = 30;
	
	public Square(int x, int y, int blockType, Display display){
		this.x = x;
		this.y = y;
		this.blockType = blockType;
		this.display = display;
		borderColor = new Color(display, 0, 0, 0);
	}
	
	//根据block的类型得到当前小方块的颜色
	private Color getSquareColor(){
		//L_BLOCK
		if(blockType >=0 && blockType <= 3){
			return new Color(display, 66, 232, 211);
		}
		//J_BLOCK
		else if(blockType >= 10 && blockType <= 13){
			return new Color(display, 243, 136, 219);
		}
		//I_BLOCK
		else if(blockType == 20 || blockType == 21){
			return new Color(display, 105, 206, 244);
		}
		//Z_BLOCK
		else if(blockType == 30 || blockType == 31){
			return new Color(display, 242, 146, 83);
		}
		//S_BLOCK
		else if(blockType == 40 || blockType == 41){
			return new Color(display, 243, 241, 101);
		}
		//O_BLOCK
		else if(blockType == 50){
			return new Color(display, 225, 102, 240);
		}
		//T_BLOCK
		else if(blockType >= 60 && blockType <= 63){
			return new Color(display, 102, 218, 151);
		}
		
		else//画成背景色
			return new Color(display, 0, 0, 0);
	}
	//主要用于block类的clear方法中，将边框颜色设为黑色
	/*public void setBorderColor(Color color){
		this.borderColor = color;
	}*/
	//画出小方块
	public void draw(){
		squareColor = getSquareColor();
		gc = MyGC.getMyGC();
		gc.setBackground(squareColor);
		gc.fillRectangle(x + 1, y + 1, 29, 29);
		gc.setForeground(borderColor);
		gc.drawLine(x, y, x + 30, y);
		gc.drawLine(x + 30, y, x + 30, y + 30);
		gc.drawLine(x + 30, y + 30, x, y + 30);
		gc.drawLine(x, y + 30, x, y);
	}
}