Android Infinite Background Scrolling example

Android Infinite Background Scrolling example

게임에서 자주 사용되는 상하 무한 스크롤링 방법의 한 예

다른 구성파일을 이곳을 참고하세요

package game.framework;

import android.graphics.*;

public class Background extends GraphicObject {

	int speedX, speedY = 1;
	int bitmapHeight;
	
	public Background(){
		super(AppManager.getInstance().getBitmap(R.drawable.field_seamless2));
		bitmapHeight = bitmap.getHeight();
	} 
	
	public Background(Bitmap bitmap) {
		super(bitmap);
	}

	public void update() {
		x+=speedX;
		y+=speedY;
	}
	
	public void setScrollSpeed(int speedX, int speedY){
		this.speedX = speedX;
		this.speedY = speedY;
	}
	
	@Override
	public void draw(Canvas canvas) {
	    canvas.drawBitmap(bitmap, 0, y, null);
	    canvas.drawBitmap(bitmap, 0, y-bitmapHeight, null);
	    if(y>bitmapHeight) y -= bitmapHeight;
	}
}

GameState.java

package game.framework;

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.util.Log;

import android.view.KeyEvent;

import android.view.MotionEvent;

public class GameState implements IState {

Background background;

GameKeyPad keyPad;

Airplane airplane;

public GameState() {

background = new Background();

keyPad = new GameKeyPad();

airplane = new Airplane();

}

@Override

public void init() {   }

@Override

public void destroy() { }

@Override

public void update() {

background.update();

airplane.update();

}

@Override

public void render(Canvas canvas) {

background.draw(canvas);

airplane.draw(canvas);

keyPad.draw(canvas);

}

@Override

public boolean onKeyDown(int keyCode, KeyEvent event) {

return false;

}

@Override

public boolean onTouchEvent(MotionEvent event) {

return keyPad.onTouchEvent(event);

}

}

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