Java tutorial
/** Copyright 2012-2013 John Cummens (aka Shadowmage, Shadowmage4513) This software is distributed under the terms of the GNU General Public License. Please see COPYING for precise license information. This file is part of Ancient Warfare. Ancient Warfare 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. Ancient Warfare 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 Ancient Warfare. If not, see <http://www.gnu.org/licenses/>. */ package shadowmage.ancient_framework.client.model; import java.awt.image.BufferedImage; import java.util.ArrayList; import org.lwjgl.opengl.GL11; import shadowmage.ancient_framework.common.config.AWLog; import shadowmage.ancient_framework.common.utils.StringTools; public class PrimitiveQuad extends Primitive { float x1, y1, x2, y2;//extends of bounding box in local space (post rotation) -- used for w/l/h for boxes public PrimitiveQuad(ModelPiece parent) { super(parent); } @Override protected void renderForDisplayList() { float tw = parent.getModel().textureWidth; float th = parent.getModel().textureHeight; float px = 1.f / tw; float py = 1.f / th; float w = (x2 - x1) * 16.f; float l = 1.f;//TODO fix this for proper texture handling float h = (y2 - y1) * 16.f; float ty = this.ty(); float tx = this.tx(); float tx1, ty1, tx2, ty2; //render the cube. only called a single time when building the display list for a piece if (rx != 0) { GL11.glRotatef(rx, 1, 0, 0); } if (ry != 0) { GL11.glRotatef(ry, 0, 1, 0); } if (rz != 0) { GL11.glRotatef(rz, 0, 0, 1); } GL11.glBegin(GL11.GL_QUADS); AWLog.logDebug("tx, ty: " + tx + "," + ty); AWLog.logDebug("w,l,h: " + w + "," + h); // AWLog.logDebug(String.format("t: %.4f, %.4f, %.4f, %.4f", tx1, ty1, tx2, ty2)); //front side tx1 = (tx + l) * px; ty1 = (th - (ty + l + h)) * py; tx2 = (tx + l + w) * px; ty2 = (th - (ty + l)) * py; GL11.glNormal3f(0, 0, 1); GL11.glTexCoord2f(tx1, ty1); GL11.glVertex3f(x1, y1, 0.f); GL11.glTexCoord2f(tx2, ty1); GL11.glVertex3f(x2, y1, 0.f); GL11.glTexCoord2f(tx2, ty2); GL11.glVertex3f(x2, y2, 0.f); GL11.glTexCoord2f(tx1, ty2); GL11.glVertex3f(x1, y2, 0.f); GL11.glEnd(); } @Override public Primitive copy() { PrimitiveQuad box = new PrimitiveQuad(parent); box.setBounds(x1, y1, x2 - x1, y2 - y1); box.setOrigin(x, y, z); box.setRotation(rx, ry, rz); box.setTx(tx()); box.setTy(ty()); return box; } @Override public void addPrimitiveLines(ArrayList<String> lines) { StringBuilder b = new StringBuilder("quad=" + parent.getName() + ","); b.append(x).append(",").append(y).append(",").append(z).append(",").append(rx).append(",").append(ry) .append(",").append(rz).append(",").append(tx()).append(",").append(ty()).append(","); b.append(x1).append(",").append(y1).append(",").append(x2).append(",").append(y2); lines.add(b.toString()); } @Override public void readFromLine(String[] lineBits) { // String parent = lineBits[0]; x = StringTools.safeParseFloat(lineBits[1]); y = StringTools.safeParseFloat(lineBits[2]); z = StringTools.safeParseFloat(lineBits[3]); rx = StringTools.safeParseFloat(lineBits[4]); ry = StringTools.safeParseFloat(lineBits[5]); rz = StringTools.safeParseFloat(lineBits[6]); setTx(StringTools.safeParseFloat(lineBits[7])); setTy(StringTools.safeParseFloat(lineBits[8])); x1 = StringTools.safeParseFloat(lineBits[9]); y1 = StringTools.safeParseFloat(lineBits[10]); x2 = StringTools.safeParseFloat(lineBits[11]); y2 = StringTools.safeParseFloat(lineBits[12]); } public void setBounds(float x1, float y1, float width, float height) { this.x1 = x1; this.x2 = x1 + width; this.y1 = y1; this.y2 = y1 + height; this.setCompiled(false); } public float x1() { return x1; } public float y1() { return y1; } public float width() { return x2 - x1; } public float height() { return y2 - y1; } @Override public void addUVMapToImage(BufferedImage image) { int w = (int) (x2 - x1) * 16; int h = (int) (y2 - y1) * 16; for (int x = (int) tx(); x < tx() + w; x++) { for (int y = (int) ty(); y < ty() + h; y++) { image.setRGB(x, y, 0xffff0000); } } } }