Java tutorial
/******************************************************************************* * Copyright 2014 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.sidereal.dolphinoes.ui; import java.util.ArrayList; import java.util.HashMap; import com.badlogic.gdx.Gdx; import com.badlogic.gdx.graphics.Color; import com.badlogic.gdx.graphics.Texture; import com.badlogic.gdx.math.Vector2; import com.sidereal.dolphinoes.architecture.DolphinOES; import com.sidereal.dolphinoes.architecture.GameObject; import com.sidereal.dolphinoes.architecture.GameScene; import com.sidereal.dolphinoes.architecture.core.input.ActionData; import com.sidereal.dolphinoes.architecture.core.input.ActionEvent; import com.sidereal.dolphinoes.architecture.core.input.Input.InputAction; import com.sidereal.dolphinoes.architecture.core.input.Input.InputEventType; import com.sidereal.dolphinoes.behaviors.input.Clickable; import com.sidereal.dolphinoes.behaviors.renderer.Renderer; import com.sidereal.dolphinoes.behaviors.renderer.sprite.SpriteBuilder; import com.sidereal.dolphinoes.behaviors.renderer.sprite.SpriteDrawer; import com.sidereal.dolphinoes.ui.TextBuilder.Anchor; import com.sidereal.dolphinoes.ui.TextBuilder.Paragraph; /** Class resembling a message bubble. Messages can be sent to the object, * displaying them and dissapearing or waiting to be clicked until closing. * * @author Claudiu Bele */ public class MessageBubble extends GameObject { // region fields private String targetInputProcessor; public TextBuilder text; public Vector2 size; public Color bgColor; public float textSize; public Renderer renderer; public Clickable clickable; public ArrayList<MessageBubbleText> texts; public boolean inTransition; private ShrinkType shrinkType; /** The general offset of the text, compared to the top of the Message * bubble, initially set to -40 */ public float textPositionOffset; /** The amount we reduce from the size for the word wrap. Being 0 would * possibly make the text overlap the frame texture. * <p> * Set to -40 in {@link MessageBubble#createObject(Object...) }. */ public float textWrapOffset; /** The static hashmap in which we will hold valuable message bubbles ( the * ones that when created are being passed a name ) */ public static HashMap<String, MessageBubble> messageBubbles; class MessageBubbleText { public ArrayList<Paragraph> paragraphs; public float fadeTime; public float upTime; public float timeRemaining; public DisplayStatus displayStatus; public boolean closeOnClick; public MessageBubbleText(ArrayList<TextBuilder.Paragraph> paragraphs) { displayStatus = DisplayStatus.APPEARING; fadeTime = 0.4f; closeOnClick = false; upTime = timeRemaining = 2; textSize = 1.4f; this.paragraphs = paragraphs; } public void set(MessageBubble bubble) { displayStatus = DisplayStatus.APPEARING; timeRemaining = fadeTime; bubble.text.clearText(); for (int i = 0; i < paragraphs.size(); i++) { bubble.text.addText(paragraphs.get(i).text, paragraphs.get(i).color); } if (closeOnClick) { bubble.text.addText(" ", Color.BLACK); bubble.text.addText("Click window to close.", Color.WHITE); } } public void update(MessageBubble bubble) { timeRemaining -= DolphinOES.time.getDeltaTime(); timeRemaining = Math.max(0, timeRemaining); float progress = 0; if (displayStatus.equals(DisplayStatus.APPEARING)) { progress = 1 - timeRemaining / fadeTime; if (timeRemaining == 0) { timeRemaining = upTime; displayStatus = DisplayStatus.DISPLAYED; if (closeOnClick) { bubble.clickable.enabled = true; } inTransition = false; } } if (displayStatus.equals(DisplayStatus.DISPLAYED)) { progress = 1; if (timeRemaining == 0 && !closeOnClick) { timeRemaining = fadeTime; displayStatus = DisplayStatus.DISSAPEARING; } } if (displayStatus.equals(DisplayStatus.DISSAPEARING)) { if (texts.size() == 1) { bubble.inTransition = true; } progress = timeRemaining / fadeTime; if (timeRemaining == 0) { displayStatus = DisplayStatus.HIDDEN; texts.remove(this); if (texts.size() > 0) { texts.get(0).set(bubble); } } } // if has to become smaller or bigger in size, will do that // becomes bigger by default initially, becomes smaller when // removing the last fade element. if (bubble.inTransition) { renderer.getDrawer("BG", SpriteDrawer.class).setTransparency(progress, false); if (bubble.shrinkType.equals(ShrinkType.Full)) { renderer.getDrawer("BG", SpriteDrawer.class).setSizeAndCenter(size.x * progress, size.y * progress); bubble.text.setScale(textSize * progress); } } bubble.text.alpha = progress; } public MessageBubbleText addParagraph(String text, Color color) { paragraphs.add(new Paragraph(text, color)); return this; } public MessageBubbleText setFadeTime(float fadeTime) { this.fadeTime = fadeTime; return this; } public MessageBubbleText setUpTime(float upTime) { this.upTime = upTime; return this; } public MessageBubbleText setCloseOnClick(boolean value) { closeOnClick = value; return this; } } enum DisplayStatus { APPEARING, DISPLAYED, DISSAPEARING, HIDDEN } public static enum ShrinkType { Full, AlphaChannel } // endregion fields // region constructors public MessageBubble(String name, GameScene scene, ShrinkType shrinkType, String targetInputProcessor) { super(scene, targetInputProcessor); if (messageBubbles == null) { messageBubbles = new HashMap<String, MessageBubble>(); } if (name != null) { messageBubbles.put(name, this); } this.shrinkType = shrinkType; } @Override public void createObject(Object... params) { this.targetInputProcessor = (String) params[0]; this.pos.setRelative(0, 0, 10); this.textPositionOffset = 0; this.textWrapOffset = 0; size = new Vector2(Gdx.graphics.getHeight() * 0.2f, Gdx.graphics.getHeight() * 0.4f); bgColor = new Color(0, 0, 0, 0.5f); renderer = new Renderer(this); clickable = new Clickable(this); clickable.enabled = false; clickable.setAreaSize(size.x, size.y); clickable.addActionEvent(targetInputProcessor, InputAction.ANY_ACTION, new ActionEvent() { @Override public boolean run(ActionData inputData) { if (texts.size() == 0) return false; if (texts.get(0).closeOnClick && texts.get(0).displayStatus.equals(DisplayStatus.DISPLAYED)) { texts.get(0).displayStatus = DisplayStatus.DISSAPEARING; texts.get(0).timeRemaining = texts.get(0).fadeTime; clickable.enabled = false; return true; } return false; } }, InputEventType.Down, true); setGameBatch("UI"); DolphinOES.assets.load(DolphinOES.assets.frameworkAssetsFolder + "White.png", Texture.class); renderer.addDrawer("BG", new SpriteBuilder(DolphinOES.assets.frameworkAssetsFolder + "White.png") .setSizeAndCenter(size).setTransparency(0).setColor(bgColor)); text = new TextBuilder(scene, true); text.setGameBatch("UI"); text.setAnchor(Anchor.Middle); text.setParent(this); text.pos.setLocal(0, 0); text.pos.setRelative(0, 0, 1); texts = new ArrayList<MessageBubble.MessageBubbleText>(); inTransition = true; } // endregion constructors // region methods public void setColor(float r, float g, float b, float a) { bgColor.set(r, g, b, a); renderer.getDrawer("BG", SpriteDrawer.class).setColor(bgColor); } public void setSize(float width, float height) { size = new Vector2(width, height); text.setWindowSize(width + textWrapOffset); renderer.getDrawer("BG", SpriteDrawer.class).setSizeAndCenter(size.x, size.y); clickable.setAreaSize(width, height); text.pos.setLocal(0, textPositionOffset); } public void setTextWrapOffset(float value) { this.textWrapOffset = value; text.setWindowSize(size.x + textWrapOffset); } public void setTextPositionOffset(float value) { this.textPositionOffset = value; text.pos.setLocal(0, textPositionOffset); } @Override public void update() { if (texts.size() > 0) { texts.get(0).update(this); } } public void add(MessageBubbleText text) { texts.add(text); // if numbers of texts is 1 after adding our own text, we make it // appear. IF it isn't we just add it to the queue if (texts.size() == 1) { texts.get(0).set(this); } } public void add(String text) { add(text, Color.WHITE); } public void add(String text, Color color) { add(text, color, false); } public void add(String text, Color color, boolean closeOnClick) { add(text, color, closeOnClick, 2f, 0.5f); } public void add(String text, Color color, boolean closeOnClick, float upTime, float fadeTime) { ArrayList<Paragraph> paragraphs = new ArrayList<TextBuilder.Paragraph>(); paragraphs.add(new Paragraph(text, color)); add(paragraphs, closeOnClick, upTime, fadeTime); } public void add(ArrayList<Paragraph> paragraphs, boolean closeOnClick, float upTime, float fadeTime) { add(new MessageBubbleText(paragraphs).setCloseOnClick(closeOnClick).setUpTime(upTime) .setFadeTime(fadeTime)); } public boolean isDisplayingMessage() { return texts.size() != 0; } public void clear() { texts.clear(); } @Override protected void onPositionChange() { if (text != null) { text.pos.setLocal(0, 0); } } @Override public void onResize(float x, float y, float oldX, float oldY) { setSize(size.x * (x / oldX), size.y * (y / oldY)); pos.set(gameBatch.camera.position.x, gameBatch.camera.position.y, pos.getZ()); } // endregion methods }