Java tutorial
/** * eAdventure (formerly <e-Adventure> and <e-Game>) is a research project of the * <e-UCM> research group. * * Copyright 2005-2010 <e-UCM> research group. * * You can access a list of all the contributors to eAdventure at: * http://e-adventure.e-ucm.es/contributors * * <e-UCM> is a research group of the Department of Software Engineering * and Artificial Intelligence at the Complutense University of Madrid * (School of Computer Science). * * C Profesor Jose Garcia Santesmases sn, * 28040 Madrid (Madrid), Spain. * * For more info please visit: <http://e-adventure.e-ucm.es> or * <http://www.e-ucm.es> * * **************************************************************************** * * This file is part of eAdventure, version 2.0 * * eAdventure is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * eAdventure is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with eAdventure. If not, see <http://www.gnu.org/licenses/>. */ package es.eucm.ead.engine.debugger; import com.badlogic.gdx.Gdx; import com.badlogic.gdx.Input; import com.badlogic.gdx.graphics.Color; import com.badlogic.gdx.graphics.Pixmap; import com.badlogic.gdx.graphics.Texture; import com.badlogic.gdx.graphics.g2d.BitmapFont; import com.badlogic.gdx.graphics.g2d.Sprite; import com.badlogic.gdx.graphics.g2d.SpriteBatch; import com.badlogic.gdx.graphics.g2d.TextureRegion; import com.badlogic.gdx.scenes.scene2d.Group; import com.badlogic.gdx.scenes.scene2d.InputEvent; import com.badlogic.gdx.scenes.scene2d.InputListener; import com.badlogic.gdx.scenes.scene2d.Touchable; import com.badlogic.gdx.scenes.scene2d.ui.Button; import com.badlogic.gdx.scenes.scene2d.ui.Label; import com.badlogic.gdx.scenes.scene2d.ui.TextField; import com.badlogic.gdx.scenes.scene2d.utils.SpriteDrawable; import com.badlogic.gdx.scenes.scene2d.utils.TextureRegionDrawable; import com.badlogic.gdx.utils.Array; import es.eucm.ead.engine.EAdEngine; import es.eucm.ead.engine.game.Game; import es.eucm.ead.engine.game.GameLoader; public class SimpleDebugger extends Group { private final Label result; private final TextField interpreter; private final Button button; private Array<String> history; private int historyPointer = -1; public SimpleDebugger(Game game, GameLoader gameLoader) { this.setTouchable(Touchable.disabled); this.history = new Array<String>(); final CommandInterpreter commandInterpreter = new CommandInterpreter(game, gameLoader); BitmapFont font = new BitmapFont( Gdx.files.internal("es/eucm/ead/engine/resources/binary/fonts/ubuntu-16-bold.fnt"), true); this.setX(0); this.setY(580); Pixmap p = new Pixmap(10, 10, Pixmap.Format.RGBA8888); p.setColor(Color.BLACK); p.fill(); TextureRegionDrawable background = new TextureRegionDrawable(new TextureRegion(new Texture(p))); p.dispose(); p = new Pixmap(2, 30, Pixmap.Format.RGBA8888); p.setColor(Color.WHITE); p.fill(); TextureRegionDrawable cursor = new TextureRegionDrawable(new TextureRegion(new Texture(p))); p.dispose(); Label.LabelStyle style = new Label.LabelStyle(); SpriteDrawable backgroundSprite = new SpriteDrawable(new Sprite(background.getRegion())); backgroundSprite.getSprite().setColor(new Color(0, 0, 0, 0.5f)); style.background = backgroundSprite; style.font = font; style.fontColor = Color.WHITE; result = new Label("", style); result.setWrap(true); int y = -100; result.setBounds(0, y, 800, -y); this.addActor(result); TextField.TextFieldStyle tfStyle = new TextField.TextFieldStyle(); tfStyle.font = font; tfStyle.background = background; tfStyle.selection = cursor; tfStyle.fontColor = Color.WHITE; tfStyle.cursor = cursor; interpreter = new TextField("", tfStyle); interpreter.setBounds(10, 0, 800, 20); interpreter.getStyle().font = font; interpreter.addListener(new InputListener() { @Override public boolean keyDown(InputEvent event, int keycode) { switch (keycode) { case Input.Keys.ENTER: String command = interpreter.getText(); if (history.size == 0 || !history.peek().equals(command)) { history.add(command); } historyPointer = history.size; result.setText(commandInterpreter.interpret(command)); interpreter.setText(""); break; case Input.Keys.ESCAPE: setVisible(false); break; case Input.Keys.UP: previousCommand(); break; case Input.Keys.DOWN: nextCommand(); break; } return true; } }); Button.ButtonStyle buttonStyle = new Button.ButtonStyle(); Label label = new Label(">", style); buttonStyle.up = background; button = new Button(label, buttonStyle); button.setHeight(20); button.addListener(new InputListener() { @Override public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) { setVisible(true); return false; } }); this.addActor(interpreter); setVisible(false); this.addActor(button); ((EAdEngine) Gdx.app.getApplicationListener()).getStage().addListener(new InputListener() { @Override public boolean keyDown(InputEvent event, int keycode) { switch (keycode) { case Input.Keys.F12: setVisible(true); break; } return false; } }); } private void updateCommand() { if (historyPointer == history.size) { interpreter.setText(""); } else { interpreter.setText(history.get(historyPointer)); } interpreter.setCursorPosition(interpreter.getText().length()); } private void nextCommand() { historyPointer = Math.min(historyPointer + 1, history.size); updateCommand(); } private void previousCommand() { historyPointer = Math.max(historyPointer - 1, 0); updateCommand(); } public void setVisible(boolean visible) { result.setVisible(visible); interpreter.setVisible(visible); if (visible) { ((EAdEngine) Gdx.app.getApplicationListener()).getStage().setKeyboardFocus(interpreter); } } @Override public void draw(SpriteBatch batch, float parentAlpha) { super.draw(batch, parentAlpha); } }