MessageBoxEntity.java

package org.test.rtsgame;

import loon.LSystem;
import loon.LTexture;
import loon.action.sprite.SpriteBatch;
import loon.action.sprite.painting.DrawableEvent;
import loon.canvas.LColor;
import loon.canvas.LColorPool;
import loon.event.SysTouch;
import loon.font.LFont;
import loon.geom.Vector2f;
import loon.utils.timer.GameTime;

public class MessageBoxEntity extends GameEntity {

	public DrawableEvent Accepted;
	private LFont font;

	private String text;
	private Vector2f textOrigin;
	private LTexture texture;
	private Vector2f textureOrigin;

	public MessageBoxEntity(String message) {
		this.text = message;
		super.setIsPopup(true);
		super.setTransitionOnTime(0.2f);
		super.setTransitionOffTime(0.2f);
	}

	public MessageBoxEntity(LTexture background, String message) {
		this(message);
		this.texture = background;
	}

	@Override
	public void Draw(SpriteBatch batch, GameTime gameTime) {
		super.getScreenManager().FadeBackBufferToBlack(batch,
				(super.getTransitionAlpha() * 1f) / 3f);
		Vector2f vector = new Vector2f(LSystem.viewSize.width / 2,
				LSystem.viewSize.height / 2);
		LColor color = LColorPool.get().getColor(1f, 1f, 1f,
				super.getTransitionAlpha());

		if (this.texture != null) {
			batch.draw(this.texture, vector.sub(this.textureOrigin), color);
		}
		if (this.text != null) {
			batch.drawString(this.font, this.text, vector.sub(this.textOrigin),
					color);
		}
	}

	@Override
	public void HandleInput() {
		if (SysTouch.isDown() || SysTouch.isUp()) {
			if (this.Accepted != null) {
				Accepted.invoke();
			}
			super.ExitScreen();
		}
	}

	@Override
	public void LoadContent() {
		this.font = super.getScreenManager().getGameContent().gameFont;
		if (this.texture != null) {
			this.textureOrigin = new Vector2f(this.texture.getWidth(),
					this.texture.getHeight()).div();
		}
		if (this.text != null) {
			this.textOrigin = font.getOrigin(this.text);
		}
	}
}