logo.java

一个锻炼记忆力的小游戏

import java.io.IOException;
import javax.microedition.lcdui.*;

public class Logo {

	private static final int LOGO_1 = 1;

	private int iState = LOGO_1;
	
	private int j = 0;

	private Image splash, age1;

	private GameMain gm;

	public Logo(GameMain gm) {
		this.gm = gm;
		loadmages();
	}

	public final void loadmages() {
		try {
			if (splash == null)
				splash = Image.createImage("/images/legal.png");
			if (age1 == null) {
				age1 = Image.createImage("/images/logo1.png");
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public final void freeImages() {
		splash = null;
	}

	private final void drawLogo(int arc) {

		gm.gameGraphics.drawImage(age1, gm.WIDTH / 2, gm.HEIGHT / 2,
				Graphics.VCENTER | Graphics.HCENTER);
		gm.gameGraphics.setColor(0xffffff);
		gm.gameGraphics.fillRect(0, 0, gm.WIDTH, arc);
		if (iAngle >= gm.HEIGHT) {
			// gm.gameGraphics.fillRect(0, 0, gm.WIDTH, gm.HEIGHT / 2 - arc);
			gm.gameGraphics.drawImage(splash, gm.WIDTH / 2, gm.HEIGHT / 2,
					Graphics.VCENTER | Graphics.HCENTER);
		}

		
		if (j >=30) {
			gm.stateChange(GameMain.STATE_MENU);
		}
	}

	public final void render()  {
		switch (iState) {
		case LOGO_1:
			drawLogo((int) iAngle);
			break;
		}
	}

	public void update(long time_elapsed) {
		lSelfTimElapsed += time_elapsed;
		switch (iState) {
		case LOGO_1:
			if (lSelfTimElapsed > 100) {
				iAngle = iAngle + lSelfTimElapsed / 20;
				j++;
			}
			if (iAngle >= gm.HEIGHT) {
				iAngle = gm.HEIGHT;
			}
			break;
		}
	}

	long lSelfTimElapsed;

	long iAngle = 0;

	public void keyPressed(int action) {

	}
}