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Classic point and click adventure game engine
/*******************************************************************************
* Copyright 2014 Rafael Garcia Moreno.
*
* 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.bladecoder.engine.ui;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input;
import com.badlogic.gdx.Input.Keys;
import com.badlogic.gdx.audio.Music;
import com.badlogic.gdx.ScreenAdapter;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.Texture.TextureFilter;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.scenes.scene2d.InputEvent;
import com.badlogic.gdx.scenes.scene2d.InputListener;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.Button;
import com.badlogic.gdx.scenes.scene2d.ui.Cell;
import com.badlogic.gdx.scenes.scene2d.ui.Dialog;
import com.badlogic.gdx.scenes.scene2d.ui.Image;
import com.badlogic.gdx.scenes.scene2d.ui.Label;
import com.badlogic.gdx.scenes.scene2d.ui.Skin;
import com.badlogic.gdx.scenes.scene2d.ui.Table;
import com.badlogic.gdx.scenes.scene2d.ui.TextButton;
import com.badlogic.gdx.scenes.scene2d.ui.TextButton.TextButtonStyle;
import com.badlogic.gdx.scenes.scene2d.utils.ClickListener;
import com.badlogic.gdx.scenes.scene2d.utils.Drawable;
import com.badlogic.gdx.scenes.scene2d.utils.TextureRegionDrawable;
import com.badlogic.gdx.utils.Align;
import com.badlogic.gdx.utils.viewport.ScreenViewport;
import com.bladecoder.engine.assets.EngineAssetManager;
import com.bladecoder.engine.i18n.I18N;
import com.bladecoder.engine.model.World;
import com.bladecoder.engine.ui.UI.Screens;
import com.bladecoder.engine.util.Config;
import com.bladecoder.engine.util.DPIUtils;
import com.bladecoder.engine.util.EngineLogger;
public class MenuScreen extends ScreenAdapter implements BladeScreen {
// private final static float BUTTON_PADDING = DPIUtils.UI_SPACE;
private UI ui;
private Stage stage;
private Texture bgTexFile = null;
private Texture titleTexFile = null;
private Pointer pointer;
private Button credits;
private Button help;
private Button debug;
private final Table menuButtonTable = new Table();
private final Table iconStackTable = new Table();
private Music music;
public MenuScreen() {
}
@Override
public void render(float delta) {
Gdx.gl.glClearColor(0, 0, 0, 1);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
stage.act(delta);
stage.draw();
}
@Override
public void resize(int width, int height) {
stage.getViewport().update(width, height, true);
pointer.resize();
float size = DPIUtils.getPrefButtonSize();
credits.setSize(size, size);
help.setSize(size, size);
debug.setSize(size, size);
}
@Override
public void dispose() {
if (stage != null) {
stage.dispose();
stage = null;
if (bgTexFile != null) {
bgTexFile.dispose();
bgTexFile = null;
}
if (titleTexFile != null) {
titleTexFile.dispose();
titleTexFile = null;
}
if (music != null) {
music.stop();
music.dispose();
music = null;
}
}
}
@Override
public void show() {
stage = new Stage(new ScreenViewport());
final Skin skin = ui.getSkin();
final World world = World.getInstance();
final MenuScreenStyle style = getStyle();
final BitmapFont f = skin.get(style.textButtonStyle, TextButtonStyle.class).font;
float buttonWidth = f.getCapHeight() * 15f;
// Image background = new Image(style.background);
Drawable bg = style.background;
float scale = 1;
if (bg == null && style.bgFile != null) {
bgTexFile = new Texture(EngineAssetManager.getInstance().getResAsset(style.bgFile));
bgTexFile.setFilter(TextureFilter.Linear, TextureFilter.Linear);
scale = (float) bgTexFile.getHeight() / (float) stage.getViewport().getScreenHeight();
int width = (int) (stage.getViewport().getScreenWidth() * scale);
int x0 = (int) ((bgTexFile.getWidth() - width) / 2);
bg = new TextureRegionDrawable(new TextureRegion(bgTexFile, x0, 0, width, bgTexFile.getHeight()));
}
menuButtonTable.clear();
if (bg != null)
menuButtonTable.setBackground(bg);
menuButtonTable.addListener(new InputListener() {
@Override
public boolean keyUp(InputEvent event, int keycode) {
if (keycode == Input.Keys.ESCAPE || keycode == Input.Keys.BACK)
if (world.getCurrentScene() != null)
ui.setCurrentScreen(Screens.SCENE_SCREEN);
return true;
}
});
menuButtonTable.align(getAlign());
menuButtonTable.pad(DPIUtils.getMarginSize() * 2);
menuButtonTable.defaults().pad(DPIUtils.getSpacing()).width(buttonWidth).align(getAlign());
// menuButtonTable.debug();
stage.setKeyboardFocus(menuButtonTable);
if (style.showTitle && style.titleStyle != null) {
Label title = new Label(Config.getProperty(Config.TITLE_PROP, "Adventure Blade Engine"), skin,
style.titleStyle);
title.setAlignment(getAlign());
menuButtonTable.add(title).padBottom(DPIUtils.getMarginSize() * 2);
menuButtonTable.row();
}
if(style.titleFile != null) {
titleTexFile = new Texture(EngineAssetManager.getInstance().getResAsset(style.titleFile));
titleTexFile.setFilter(TextureFilter.Linear, TextureFilter.Linear);
Image img = new Image(titleTexFile);
menuButtonTable.add(img).width((float)titleTexFile.getWidth() / scale).height((float)titleTexFile.getHeight() / scale).padBottom(DPIUtils.getMarginSize() * 2);
menuButtonTable.row();
}
if (world.savedGameExists() || world.getCurrentScene() != null) {
TextButton continueGame = new TextButton(I18N.getString("ui.continue"), skin, style.textButtonStyle);
continueGame.getLabel().setAlignment(getAlign());
continueGame.addListener(new ClickListener() {
public void clicked(InputEvent event, float x, float y) {
if (world.getCurrentScene() == null)
try {
world.load();
} catch (Exception e) {
Gdx.app.exit();
}
ui.setCurrentScreen(Screens.SCENE_SCREEN);
}
});
menuButtonTable.add(continueGame);
menuButtonTable.row();
}
TextButton newGame = new TextButton(I18N.getString("ui.new"), skin, style.textButtonStyle);
newGame.getLabel().setAlignment(getAlign());
newGame.addListener(new ClickListener() {
public void clicked(InputEvent event, float x, float y) {
if (world.savedGameExists()) {
Dialog d = new Dialog("", skin) {
protected void result(Object object) {
if (((Boolean) object).booleanValue()) {
try {
world.newGame();
ui.setCurrentScreen(Screens.SCENE_SCREEN);
} catch (Exception e) {
EngineLogger.error("IN NEW GAME", e);
Gdx.app.exit();
}
}
}
};
d.pad(DPIUtils.getMarginSize());
d.getButtonTable().padTop(DPIUtils.getMarginSize());
d.getButtonTable().defaults().padLeft(DPIUtils.getMarginSize()).padRight(DPIUtils.getMarginSize());
Label l = new Label(I18N.getString("ui.override"), ui.getSkin(), "ui-dialog");
l.setWrap(true);
l.setAlignment(Align.center);
d.getContentTable().add(l).prefWidth(Gdx.graphics.getWidth() * .7f);
d.button(I18N.getString("ui.yes"), true, ui.getSkin().get("ui-dialog", TextButtonStyle.class));
d.button(I18N.getString("ui.no"), false, ui.getSkin().get("ui-dialog", TextButtonStyle.class));
d.key(Keys.ENTER, true).key(Keys.ESCAPE, false);
d.show(stage);
} else {
try {
world.newGame();
ui.setCurrentScreen(Screens.SCENE_SCREEN);
} catch (Exception e) {
EngineLogger.error("IN NEW GAME", e);
Gdx.app.exit();
}
}
}
});
menuButtonTable.add(newGame);
menuButtonTable.row();
TextButton loadGame = new TextButton(I18N.getString("ui.load"), skin, style.textButtonStyle);
loadGame.getLabel().setAlignment(getAlign());
loadGame.addListener(new ClickListener() {
public void clicked(InputEvent event, float x, float y) {
ui.setCurrentScreen(Screens.LOAD_GAME_SCREEN);
}
});
menuButtonTable.add(loadGame);
menuButtonTable.row();
TextButton quit = new TextButton(I18N.getString("ui.quit"), skin, style.textButtonStyle);
quit.getLabel().setAlignment(getAlign());
quit.addListener(new ClickListener() {
public void clicked(InputEvent event, float x, float y) {
Gdx.app.exit();
}
});
menuButtonTable.add(quit);
menuButtonTable.row();
menuButtonTable.pack();
stage.addActor(menuButtonTable);
// BOTTOM-RIGHT BUTTON STACK
credits = new Button(skin, "credits");
credits.addListener(new ClickListener() {
public void clicked(InputEvent event, float x, float y) {
ui.setCurrentScreen(Screens.CREDIT_SCREEN);
}
});
help = new Button(skin, "help");
help.addListener(new ClickListener() {
public void clicked(InputEvent event, float x, float y) {
ui.setCurrentScreen(Screens.HELP_SCREEN);
}
});
debug = new Button(skin, "debug");
debug.addListener(new ClickListener() {
public void clicked(InputEvent event, float x, float y) {
DebugScreen debugScr = new DebugScreen();
debugScr.setUI(ui);
ui.setCurrentScreen(debugScr);
}
});
iconStackTable.clear();
iconStackTable.defaults().pad(DPIUtils.getSpacing()).size(DPIUtils.getPrefButtonSize(),
DPIUtils.getPrefButtonSize());
iconStackTable.pad(DPIUtils.getMarginSize() * 2);
if (EngineLogger.debugMode() && world.getCurrentScene() != null) {
iconStackTable.add(debug);
iconStackTable.row();
}
iconStackTable.add(help);
iconStackTable.row();
iconStackTable.add(credits);
iconStackTable.bottom().right();
iconStackTable.setFillParent(true);
iconStackTable.pack();
stage.addActor(iconStackTable);
Label version = new Label("v" + Config.getProperty(Config.VERSION_PROP, " unspecified"), skin);
version.setPosition(DPIUtils.getMarginSize(), DPIUtils.getMarginSize());
version.addListener(new ClickListener() {
int count = 0;
long time = System.currentTimeMillis();
public void clicked(InputEvent event, float x, float y) {
if (System.currentTimeMillis() - time < 500) {
count++;
} else {
count = 0;
}
time = System.currentTimeMillis();
if (count == 4) {
EngineLogger.toggle();
if (World.getInstance().isDisposed())
return;
if (EngineLogger.debugMode()) {
iconStackTable.row();
iconStackTable.add(debug);
} else {
Cell cell = iconStackTable.getCell(debug);
iconStackTable.removeActor(debug);
cell.reset();
}
}
}
});
stage.addActor(version);
debug.addListener(new ClickListener() {
public void clicked(InputEvent event, float x, float y) {
DebugScreen debugScr = new DebugScreen();
debugScr.setUI(ui);
ui.setCurrentScreen(debugScr);
}
});
pointer = new Pointer(skin);
stage.addActor(pointer);
Gdx.input.setInputProcessor(stage);
if (style.musicFile != null) {
music = Gdx.audio.newMusic(EngineAssetManager.getInstance().getAsset(style.musicFile));
music.setLooping(true);
music.play();
}
}
protected Table getMenuButtonTable() {
return menuButtonTable;
}
protected Table getIconStackTable() {
return iconStackTable;
}
protected UI getUI() {
return ui;
}
protected MenuScreenStyle getStyle() {
return ui.getSkin().get(MenuScreenStyle.class);
}
private int getAlign() {
if(getStyle().align == null ||
"center".equals(getStyle().align))
return Align.center;
if("top".equals(getStyle().align))
return Align.top;
if("bottom".equals(getStyle().align))
return Align.bottom;
if("left".equals(getStyle().align))
return Align.left;
if("right".equals(getStyle().align))
return Align.right;
return Align.center;
}
@Override
public void hide() {
dispose();
}
@Override
public void setUI(UI ui) {
this.ui = ui;
menuButtonTable.setFillParent(true);
menuButtonTable.center();
}
/** The style for the MenuScreen */
public static class MenuScreenStyle {
/** Optional. */
public Drawable background;
/** if 'bg' not specified try to load the bgFile */
public String bgFile;
public String titleFile;
public String textButtonStyle;
public String titleStyle;
public boolean showTitle;
public String musicFile;
public String align;
public MenuScreenStyle() {
}
public MenuScreenStyle(MenuScreenStyle style) {
background = style.background;
bgFile = style.bgFile;
titleFile = style.titleFile;
textButtonStyle = style.textButtonStyle;
showTitle = style.showTitle;
titleStyle = style.titleStyle;
musicFile = style.musicFile;
align = style.align;
}
}
}