gdx-helloworld-0.9.2.zip_gdx_gdx.jar_libgdx gallery_libgdx-0.9.2

/******************************************************************************* * Copyright 2011 See AUTHORS file. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. ******************************************************************************/ package com.badlogic.gdx.helloworld; import com.badlogic.gdx.ApplicationListener; import com.badlogic.gdx.Gdx; import com.badlogic.gdx.graphics.Color; import com.badlogic.gdx.graphics.GL10; import com.badlogic.gdx.graphics.Texture; import com.badlogic.gdx.graphics.g2d.BitmapFont; import com.badlogic.gdx.graphics.g2d.SpriteBatch; import com.badlogic.gdx.math.Vector2; public class HelloWorld implements ApplicationListener { SpriteBatch spriteBatch; Texture texture; BitmapFont font; Vector2 textPosition = new Vector2(100, 100); Vector2 textDirection = new Vector2(1, 1); @Override public void create () { font = new BitmapFont(); font.setColor(Color.RED); texture = new Texture(Gdx.files.internal("data/badlogic.jpg")); spriteBatch = new SpriteBatch(); } @Override public void render () { int centerX = Gdx.graphics.getWidth() / 2; int centerY = Gdx.graphics.getHeight() / 2; Gdx.graphics.getGL10().glClear(GL10.GL_COLOR_BUFFER_BIT); // more fun but confusing :) // textPosition.add(textDirection.tmp().mul(Gdx.graphics.getDeltaTime()).mul(60)); textPosition.x += textDirection.x * Gdx.graphics.getDeltaTime() * 60; textPosition.y += textDirection.y * Gdx.graphics.getDeltaTime() * 60; if (textPosition.x < 0) { textDirection.x = -textDirection.x; textPosition.x = 0; } if (textPosition.x > Gdx.graphics.getWidth()) { textDirection.x = -textDirection.x; textPosition.x = Gdx.graphics.getWidth(); } if (textPosition.y < 0) { textDirection.y = -textDirection.y; textPosition.y = 0; } if (textPosition.y > Gdx.graphics.getHeight()) { textDirection.y = -textDirection.y; textPosition.y = Gdx.graphics.getHeight(); } spriteBatch.begin(); spriteBatch.setColor(Color.WHITE); spriteBatch.draw(texture, centerX - texture.getWidth() / 2, centerY - texture.getHeight() / 2, 0, 0, texture.getWidth(), texture.getHeight()); font.draw(spriteBatch, "Hello World!", (int)textPosition.x, (int)textPosition.y); spriteBatch.end(); } @Override public void resize (int width, int height) { spriteBatch.getProjectionMatrix().setToOrtho2D(0, 0, width, height); textPosition.set(0, 0); } @Override public void pause () { } @Override public void resume () { } @Override public void dispose () { } }