Commit: f1ae54d573fc066c2b5a23fef02ad76de3387988 - MikuMikuStudio (git)

Main repository of MikuMikuStudio

Commit MetaInfo

• Revision: f1ae54d573fc066c2b5a23fef02ad76de3387988 (tree)
• Time: 2013-07-07 23:55:10
• Author: kobayasi <kobayasi@pscn...>
• Commiter: kobayasi

Log Message

add Converter

copy from jbullet library.

Change Summary

• add: engine/src/bullet/com/jme3/bullet/util/Converter.java

Incremental Difference

--- /dev/null
+++ b/engine/src/bullet/com/jme3/bullet/util/Converter.java
@@ -0,0 +1,283 @@
+/*
+ * Copyright (c) 2009-2010 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.jme3.bullet.util;
+
+//import com.bulletphysics.collision.shapes.IndexedMesh;
+//import com.bulletphysics.dom.HeightfieldTerrainShape;
+import com.jme3.math.FastMath;
+import com.jme3.scene.mesh.IndexBuffer;
+import com.jme3.scene.Mesh;
+import com.jme3.scene.VertexBuffer.Type;
+import com.jme3.scene.mesh.WrappedIndexBuffer;
+import com.jme3.util.BufferUtils;
+import java.nio.ByteBuffer;
+import java.nio.FloatBuffer;
+
+/**
+ * Nice convenience methods for conversion between javax.vecmath and com.jme3.math
+ * Objects, also some jme to jbullet mesh conversion.
+ * @author normenhansen
+ */
+public class Converter {
+
+    private Converter() {
+    }
+
+    public static com.jme3.math.Vector3f convert(javax.vecmath.Vector3f oldVec) {
+        com.jme3.math.Vector3f newVec = new com.jme3.math.Vector3f();
+        convert(oldVec, newVec);
+        return newVec;
+    }
+
+    public static com.jme3.math.Vector3f convert(javax.vecmath.Vector3f oldVec, com.jme3.math.Vector3f newVec) {
+        newVec.x = oldVec.x;
+        newVec.y = oldVec.y;
+        newVec.z = oldVec.z;
+        return newVec;
+    }
+
+    public static javax.vecmath.Vector3f convert(com.jme3.math.Vector3f oldVec) {
+        javax.vecmath.Vector3f newVec = new javax.vecmath.Vector3f();
+        convert(oldVec, newVec);
+        return newVec;
+    }
+
+    public static javax.vecmath.Vector3f convert(com.jme3.math.Vector3f oldVec, javax.vecmath.Vector3f newVec) {
+        newVec.x = oldVec.x;
+        newVec.y = oldVec.y;
+        newVec.z = oldVec.z;
+        return newVec;
+    }
+
+    public static javax.vecmath.Quat4f convert(com.jme3.math.Quaternion oldQuat, javax.vecmath.Quat4f newQuat) {
+        newQuat.w = oldQuat.getW();
+        newQuat.x = oldQuat.getX();
+        newQuat.y = oldQuat.getY();
+        newQuat.z = oldQuat.getZ();
+        return newQuat;
+    }
+
+    public static javax.vecmath.Quat4f convert(com.jme3.math.Quaternion oldQuat) {
+        javax.vecmath.Quat4f newQuat = new javax.vecmath.Quat4f();
+        convert(oldQuat, newQuat);
+        return newQuat;
+    }
+
+    public static com.jme3.math.Quaternion convert(javax.vecmath.Quat4f oldQuat, com.jme3.math.Quaternion newQuat) {
+        newQuat.set(oldQuat.x, oldQuat.y, oldQuat.z, oldQuat.w);
+        return newQuat;
+    }
+
+    public static com.jme3.math.Quaternion convert(javax.vecmath.Quat4f oldQuat) {
+        com.jme3.math.Quaternion newQuat = new com.jme3.math.Quaternion();
+        convert(oldQuat, newQuat);
+        return newQuat;
+    }
+
+    public static com.jme3.math.Quaternion convert(javax.vecmath.Matrix3f oldMatrix, com.jme3.math.Quaternion newQuaternion) {
+        // the trace is the sum of the diagonal elements; see
+        // http://mathworld.wolfram.com/MatrixTrace.html
+        float t = oldMatrix.m00 + oldMatrix.m11 + oldMatrix.m22;
+        float w, x, y, z;
+        // we protect the division by s by ensuring that s>=1
+        if (t >= 0) { // |w| >= .5
+            float s = FastMath.sqrt(t + 1); // |s|>=1 ...
+            w = 0.5f * s;
+            s = 0.5f / s;                 // so this division isn't bad
+            x = (oldMatrix.m21 - oldMatrix.m12) * s;
+            y = (oldMatrix.m02 - oldMatrix.m20) * s;
+            z = (oldMatrix.m10 - oldMatrix.m01) * s;
+        } else if ((oldMatrix.m00 > oldMatrix.m11) && (oldMatrix.m00 > oldMatrix.m22)) {
+            float s = FastMath.sqrt(1.0f + oldMatrix.m00 - oldMatrix.m11 - oldMatrix.m22); // |s|>=1
+            x = s * 0.5f; // |x| >= .5
+            s = 0.5f / s;
+            y = (oldMatrix.m10 + oldMatrix.m01) * s;
+            z = (oldMatrix.m02 + oldMatrix.m20) * s;
+            w = (oldMatrix.m21 - oldMatrix.m12) * s;
+        } else if (oldMatrix.m11 > oldMatrix.m22) {
+            float s = FastMath.sqrt(1.0f + oldMatrix.m11 - oldMatrix.m00 - oldMatrix.m22); // |s|>=1
+            y = s * 0.5f; // |y| >= .5
+            s = 0.5f / s;
+            x = (oldMatrix.m10 + oldMatrix.m01) * s;
+            z = (oldMatrix.m21 + oldMatrix.m12) * s;
+            w = (oldMatrix.m02 - oldMatrix.m20) * s;
+        } else {
+            float s = FastMath.sqrt(1.0f + oldMatrix.m22 - oldMatrix.m00 - oldMatrix.m11); // |s|>=1
+            z = s * 0.5f; // |z| >= .5
+            s = 0.5f / s;
+            x = (oldMatrix.m02 + oldMatrix.m20) * s;
+            y = (oldMatrix.m21 + oldMatrix.m12) * s;
+            w = (oldMatrix.m10 - oldMatrix.m01) * s;
+        }
+        return newQuaternion.set(x, y, z, w);
+    }
+
+    public static javax.vecmath.Matrix3f convert(com.jme3.math.Quaternion oldQuaternion, javax.vecmath.Matrix3f newMatrix) {
+        float norm = oldQuaternion.getW() * oldQuaternion.getW() + oldQuaternion.getX() * oldQuaternion.getX() + oldQuaternion.getY() * oldQuaternion.getY() + oldQuaternion.getZ() * oldQuaternion.getZ();
+        float s = (norm == 1f) ? 2f : (norm > 0f) ? 2f / norm : 0;
+
+        // compute xs/ys/zs first to save 6 multiplications, since xs/ys/zs
+        // will be used 2-4 times each.
+        float xs = oldQuaternion.getX() * s;
+        float ys = oldQuaternion.getY() * s;
+        float zs = oldQuaternion.getZ() * s;
+        float xx = oldQuaternion.getX() * xs;
+        float xy = oldQuaternion.getX() * ys;
+        float xz = oldQuaternion.getX() * zs;
+        float xw = oldQuaternion.getW() * xs;
+        float yy = oldQuaternion.getY() * ys;
+        float yz = oldQuaternion.getY() * zs;
+        float yw = oldQuaternion.getW() * ys;
+        float zz = oldQuaternion.getZ() * zs;
+        float zw = oldQuaternion.getW() * zs;
+
+        // using s=2/norm (instead of 1/norm) saves 9 multiplications by 2 here
+        newMatrix.m00 = 1 - (yy + zz);
+        newMatrix.m01 = (xy - zw);
+        newMatrix.m02 = (xz + yw);
+        newMatrix.m10 = (xy + zw);
+        newMatrix.m11 = 1 - (xx + zz);
+        newMatrix.m12 = (yz - xw);
+        newMatrix.m20 = (xz - yw);
+        newMatrix.m21 = (yz + xw);
+        newMatrix.m22 = 1 - (xx + yy);
+
+        return newMatrix;
+    }
+
+    public static com.jme3.math.Matrix3f convert(javax.vecmath.Matrix3f oldMatrix) {
+        com.jme3.math.Matrix3f newMatrix = new com.jme3.math.Matrix3f();
+        convert(oldMatrix, newMatrix);
+        return newMatrix;
+    }
+
+    public static com.jme3.math.Matrix3f convert(javax.vecmath.Matrix3f oldMatrix, com.jme3.math.Matrix3f newMatrix) {
+        newMatrix.set(0, 0, oldMatrix.m00);
+        newMatrix.set(0, 1, oldMatrix.m01);
+        newMatrix.set(0, 2, oldMatrix.m02);
+        newMatrix.set(1, 0, oldMatrix.m10);
+        newMatrix.set(1, 1, oldMatrix.m11);
+        newMatrix.set(1, 2, oldMatrix.m12);
+        newMatrix.set(2, 0, oldMatrix.m20);
+        newMatrix.set(2, 1, oldMatrix.m21);
+        newMatrix.set(2, 2, oldMatrix.m22);
+        return newMatrix;
+    }
+
+    public static javax.vecmath.Matrix3f convert(com.jme3.math.Matrix3f oldMatrix) {
+        javax.vecmath.Matrix3f newMatrix = new javax.vecmath.Matrix3f();
+        convert(oldMatrix, newMatrix);
+        return newMatrix;
+    }
+
+    public static javax.vecmath.Matrix3f convert(com.jme3.math.Matrix3f oldMatrix, javax.vecmath.Matrix3f newMatrix) {
+        newMatrix.m00 = oldMatrix.get(0, 0);
+        newMatrix.m01 = oldMatrix.get(0, 1);
+        newMatrix.m02 = oldMatrix.get(0, 2);
+        newMatrix.m10 = oldMatrix.get(1, 0);
+        newMatrix.m11 = oldMatrix.get(1, 1);
+        newMatrix.m12 = oldMatrix.get(1, 2);
+        newMatrix.m20 = oldMatrix.get(2, 0);
+        newMatrix.m21 = oldMatrix.get(2, 1);
+        newMatrix.m22 = oldMatrix.get(2, 2);
+        return newMatrix;
+    }
+
+//    public static com.bulletphysics.linearmath.Transform convert(com.jme3.math.Transform in, com.bulletphysics.linearmath.Transform out) {
+//        convert(in.getTranslation(), out.origin);
+//        convert(in.getRotation(), out.basis);
+//        return out;
+//    }
+//
+//    public static com.jme3.math.Transform convert(com.bulletphysics.linearmath.Transform in,  com.jme3.math.Transform out) {
+//        convert(in.origin, out.getTranslation());
+//        convert(in.basis, out.getRotation());
+//        return out;
+//    }
+//
+//    public static IndexedMesh convert(Mesh mesh) {
+//        IndexedMesh jBulletIndexedMesh = new IndexedMesh();
+//        jBulletIndexedMesh.triangleIndexBase = ByteBuffer.allocate(mesh.getTriangleCount() * 3 * 4);
+//        jBulletIndexedMesh.vertexBase = ByteBuffer.allocate(mesh.getVertexCount() * 3 * 4);
+//
+//        IndexBuffer indices = mesh.getIndicesAsList();
+//        
+//        FloatBuffer vertices = mesh.getFloatBuffer(Type.Position);
+//        vertices.rewind();
+//
+//        int verticesLength = mesh.getVertexCount() * 3;
+//        jBulletIndexedMesh.numVertices = mesh.getVertexCount();
+//        jBulletIndexedMesh.vertexStride = 12; //3 verts * 4 bytes per.
+//        for (int i = 0; i < verticesLength; i++) {
+//            float tempFloat = vertices.get();
+//            jBulletIndexedMesh.vertexBase.putFloat(tempFloat);
+//        }
+//
+//        int indicesLength = mesh.getTriangleCount() * 3;
+//        jBulletIndexedMesh.numTriangles = mesh.getTriangleCount();
+//        jBulletIndexedMesh.triangleIndexStride = 12; //3 index entries * 4 bytes each.
+//        for (int i = 0; i < indicesLength; i++) {
+//            jBulletIndexedMesh.triangleIndexBase.putInt(indices.get(i));
+//        }
+//        vertices.rewind();
+//        vertices.clear();
+//
+//        return jBulletIndexedMesh;
+//    }
+//
+//    public static Mesh convert(IndexedMesh mesh) {
+//        Mesh jmeMesh = new Mesh();
+//
+//        jmeMesh.setBuffer(Type.Index, 3, BufferUtils.createShortBuffer(mesh.numTriangles * 3));
+//        jmeMesh.setBuffer(Type.Position, 3, BufferUtils.createFloatBuffer(mesh.numVertices * 3));
+//
+//        IndexBuffer indicess = jmeMesh.getIndexBuffer();
+//        FloatBuffer vertices = jmeMesh.getFloatBuffer(Type.Position);
+//
+//        for (int i = 0; i < mesh.numTriangles * 3; i++) {
+//            indicess.put(i, mesh.triangleIndexBase.getInt(i * 4));
+//        }
+//
+//        for (int i = 0; i < mesh.numVertices * 3; i++) {
+//            vertices.put(i, mesh.vertexBase.getFloat(i * 4));
+//        }
+//        jmeMesh.updateCounts();
+//        jmeMesh.updateBound();
+//        jmeMesh.getFloatBuffer(Type.Position).clear();
+//
+//        return jmeMesh;
+//    }
+//
+//    public static Mesh convert(HeightfieldTerrainShape heightfieldShape) {
+//        return null; //TODO!!
+//    }
+}