1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.example.android.apis.graphics.kube; 18 19 import java.nio.ShortBuffer; 20 import java.util.ArrayList; 21 import java.util.Iterator; 22 23 public class GLShape { 24 25 public GLShape(GLWorld world) { 26 mWorld = world; 27 } 28 29 public void addFace(GLFace face) { 30 mFaceList.add(face); 31 } 32 33 public void setFaceColor(int face, GLColor color) { 34 mFaceList.get(face).setColor(color); 35 } 36 37 public void putIndices(ShortBuffer buffer) { 38 Iterator<GLFace> iter = mFaceList.iterator(); 39 while (iter.hasNext()) { 40 GLFace face = iter.next(); 41 face.putIndices(buffer); 42 } 43 } 44 45 public int getIndexCount() { 46 int count = 0; 47 Iterator<GLFace> iter = mFaceList.iterator(); 48 while (iter.hasNext()) { 49 GLFace face = iter.next(); 50 count += face.getIndexCount(); 51 } 52 return count; 53 } 54 55 public GLVertex addVertex(float x, float y, float z) { 56 57 // look for an existing GLVertex first 58 Iterator<GLVertex> iter = mVertexList.iterator(); 59 while (iter.hasNext()) { 60 GLVertex vertex = iter.next(); 61 if (vertex.x == x && vertex.y == y && vertex.z == z) { 62 return vertex; 63 } 64 } 65 66 // doesn't exist, so create new vertex 67 GLVertex vertex = mWorld.addVertex(x, y, z); 68 mVertexList.add(vertex); 69 return vertex; 70 } 71 72 public void animateTransform(M4 transform) { 73 mAnimateTransform = transform; 74 75 if (mTransform != null) 76 transform = mTransform.multiply(transform); 77 78 Iterator<GLVertex> iter = mVertexList.iterator(); 79 while (iter.hasNext()) { 80 GLVertex vertex = iter.next(); 81 mWorld.transformVertex(vertex, transform); 82 } 83 } 84 85 public void startAnimation() { 86 } 87 88 public void endAnimation() { 89 if (mTransform == null) { 90 mTransform = new M4(mAnimateTransform); 91 } else { 92 mTransform = mTransform.multiply(mAnimateTransform); 93 } 94 } 95 96 public M4 mTransform; 97 public M4 mAnimateTransform; 98 protected ArrayList<GLFace> mFaceList = new ArrayList<GLFace>(); 99 protected ArrayList<GLVertex> mVertexList = new ArrayList<GLVertex>(); 100 protected ArrayList<Integer> mIndexList = new ArrayList<Integer>(); // make more efficient? 101 protected GLWorld mWorld; 102 } 103
