Java tutorial
/***************************************************************************** * Copyright 2013, see AUTHORS file. * * This file is part of Sniffy's Flip Trip. * * Sniffy's Flip Trip is free software: you can redistribute it and/or * modify it under the terms of the GNU General Public License as published * by the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Sniffy's Flip Trip 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Sniffy's Flip Trip. * If not, see <http://www.gnu.org/licenses/>. ****************************************************************************/ package com.explatcreations.sft.modes.ending; import com.badlogic.gdx.graphics.Color; import com.explatcreations.sft.Game; import com.explatcreations.sft.data.Point2i; import com.explatcreations.sft.data.Timer; import com.explatcreations.sft.functions.IAction; import com.explatcreations.sft.graphics.SpriteBase; import com.explatcreations.sft.graphics.TextSprite; import com.explatcreations.sft.gui.Button; import com.explatcreations.sft.input.Controls; import com.explatcreations.sft.modes.IEndingWidget; import com.explatcreations.sft.modes.title.StarCollection; /** * @author deweyvm */ public abstract class BaseEndingWidget implements IEndingWidget { enum State { None, Wait, Flip, Done } private State state = State.None; private final StarCollection stars; protected final String[] strings = makeStrings(); protected final SpriteBase[] stringSprites = makeSprites(); private int ptr; private Timer waitTimer = new Timer(getWaitTime()); private Timer flipTimer = new Timer(getFlipTime()); private Button returnButton = makeReturnButton(); private Timer returnTimer = new Timer(30); private Point2i returnButtonOffset = getReturnButtonOffset(); private static Button makeReturnButton() { final IAction onPress = new IAction() { @Override public void eval() { Game.resetGame(); } }; final Button result = new Button("Return ", 0, Game.RenderHeight - 25, onPress, Controls.Cancel); result.setX(Game.RenderWidth - result.getWidth() - 50); return result; } protected BaseEndingWidget() { stars = new StarCollection(); } public void begin() { if (state == State.None) { state = State.Wait; } } protected abstract int getWrapWidth(); protected TextSprite makeTextSprite(String string) { return TextSprite.makeWrappedSprite(0, 0, string, getWrapWidth()); } protected final SpriteBase[] makeSprites() { final SpriteBase[] result = new SpriteBase[strings.length]; for (int i = 0; i < strings.length; i += 1) { final String string = strings[i]; final TextSprite nextSprite = makeTextSprite(string); nextSprite.setColor(Color.WHITE); nextSprite.x = 3; nextSprite.y = i * 40 + 30; result[i] = nextSprite; } return result; } protected int getWaitTime() { return 180; } protected int getFlipTime() { return 60; } protected abstract String[] makeStrings(); public boolean isDone() { return state == State.Done; } public void update() { stars.update(); if (state == State.Wait) { if (waitTimer.incrementUntilDone()) { state = State.Flip; } } else if (state == State.Flip) { if (flipTimer.incrementUntilDone()) { ptr += 1; if (ptr > stringSprites.length) { state = State.Done; } else { state = State.Wait; } } } else if (state == State.Done) { returnTimer.increment(); returnButton.updateSelected(); } returnButtonOffset = getReturnButtonOffset(); } private Point2i getReturnButtonOffset() { final float y = (returnTimer.getProgress2() - 1) * returnButton.getHeight(); return new Point2i(0, (int) y); } private float getAlpha() { final int step = 5; return ((int) (step * flipTimer.getProgress())) / (float) step; } public void draw() { stars.draw(Point2i.Zero); for (int i = 0; i < Math.min(ptr + 1, stringSprites.length); i += 1) { final SpriteBase sprite = stringSprites[i]; final float alpha = i == ptr ? getAlpha() : 1; sprite.setAlpha(alpha); sprite.draw(); } returnButton.draw(returnButtonOffset.neg()); } }