Java tutorial
/* * Neon, a roguelike engine. * Copyright (C) 2013 - Maarten Driesen * * This program 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. * * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */ package neon.editor.resources; import neon.editor.maps.MapEditor; import neon.resources.RData; import neon.ui.graphics.Renderable; import neon.util.ColorFactory; import neon.util.TextureFactory; import org.jdom2.Element; import java.awt.AlphaComposite; import java.awt.Color; import java.awt.Graphics2D; import java.awt.Rectangle; import java.awt.geom.Rectangle2D; public abstract class Instance implements Renderable { private static AlphaComposite alphaOn = AlphaComposite.getInstance(AlphaComposite.SRC_OVER).derive(0.5f); private static AlphaComposite alphaOff = AlphaComposite.getInstance(AlphaComposite.SRC); public int x, y, z, width, height; public RData resource; public boolean isCut = false; public Instance(RData resource, int x, int y, int z, int w, int h) { this.resource = resource; this.x = x; this.y = y; this.z = z; width = w; height = h; } public Instance(Element properties) { x = Integer.parseInt(properties.getAttributeValue("x")); y = Integer.parseInt(properties.getAttributeValue("y")); if (properties.getAttribute("w") != null) { width = Integer.parseInt(properties.getAttributeValue("w")); } if (properties.getAttribute("h") != null) { height = Integer.parseInt(properties.getAttributeValue("h")); } if (properties.getAttribute("l") != null) { z = Byte.parseByte(properties.getAttributeValue("l")); } } public void setCut(boolean isCut) { this.isCut = isCut; } public int getZ() { return z; } public int getX() { return x; } public int getY() { return y; } public void setX(int x) { this.x = x; } public void setY(int y) { this.y = y; } public void setZ(int z) { this.z = z; } public Rectangle getBounds() { return new Rectangle(x, y, width, height); } public void paint(Graphics2D graphics, float zoom, boolean isSelected) { if (MapEditor.isVisible(this)) { Color color = ColorFactory.getColor(resource.color); Rectangle2D rect = new Rectangle2D.Float(x * zoom, y * zoom, width * zoom, height * zoom); if (zoom < 1) { graphics.setPaint(color); } else { graphics.setPaint(TextureFactory.getTexture(resource.text, (int) zoom, resource.color)); } graphics.fill(rect); if (isCut) { graphics.setComposite(alphaOn); graphics.setPaint(Color.GRAY); graphics.fill(rect); graphics.setComposite(alphaOff); } if (isSelected) { graphics.setPaint(color); graphics.draw(rect); } } } public abstract Element toElement(); }