public override void DeleteTerrain()
{
if (TerrainBody != null)
{
m_world.removeRigidBody(TerrainBody);
}
if (m_terrainShape != null)
{
m_terrainShape.Dispose();
m_terrainShape = null;
}
if (m_terrainMotionState != null)
{
m_terrainMotionState.Dispose();
m_terrainMotionState = null;
}
if (m_terrainTransform != null)
{
m_terrainTransform.Dispose();
m_terrainTransform = null;
}
if (m_terrainPosition != null)
{
m_terrainPosition.Dispose();
m_terrainPosition = null;
}
}
public override void SetTerrain(short[] shortheightMap)
{
if (m_terrainShape != null)
{
DeleteTerrain();
}
float hfmax = 256;
float hfmin = 0;
// store this for later reference.
// Note, we're storing it after we check it for anomolies above
_origheightmap = shortheightMap;
hfmin = 0;
hfmax = 256;
float[] heightmap = new float[m_region.RegionSizeX * m_region.RegionSizeX];
for (int i = 0; i < shortheightMap.Length; i++)
{
heightmap[i] = shortheightMap[i] / Constants.TerrainCompression;
}
m_terrainShape = new btHeightfieldTerrainShape(m_region.RegionSizeX, m_region.RegionSizeY, heightmap,
1.0f, hfmin, hfmax, (int)btHeightfieldTerrainShape.UPAxis.Z,
(int)btHeightfieldTerrainShape.PHY_ScalarType.PHY_FLOAT, false);
float AabbCenterX = m_region.RegionSizeX / 2f;
float AabbCenterY = m_region.RegionSizeY / 2f;
float AabbCenterZ = 0;
float temphfmin, temphfmax;
temphfmin = hfmin;
temphfmax = hfmax;
if (temphfmin < 0)
{
temphfmax = 0 - temphfmin;
temphfmin = 0 - temphfmin;
}
else if (temphfmin > 0)
{
temphfmax = temphfmax + (0 - temphfmin);
//temphfmin = temphfmin + (0 - temphfmin);
}
AabbCenterZ = temphfmax / 2f;
if (m_terrainPosition == null)
{
m_terrainPosition = new btVector3(AabbCenterX, AabbCenterY, AabbCenterZ);
}
else
{
try
{
m_terrainPosition.setValue(AabbCenterX, AabbCenterY, AabbCenterZ);
}
catch (ObjectDisposedException)
{
m_terrainPosition = new btVector3(AabbCenterX, AabbCenterY, AabbCenterZ);
}
}
if (m_terrainMotionState != null)
{
m_terrainMotionState.Dispose();
m_terrainMotionState = null;
}
m_terrainTransform = new btTransform(QuatIdentity, m_terrainPosition);
m_terrainMotionState = new btDefaultMotionState(m_terrainTransform);
TerrainBody = new btRigidBody(0, m_terrainMotionState, m_terrainShape);
TerrainBody.setUserPointer((IntPtr)0);
m_world.addRigidBody(TerrainBody);
}
public override void SetTerrain(float[] heightMap)
{
if (m_terrainShape != null)
{
DeleteTerrain();
}
float hfmax = -9000;
float hfmin = 90000;
for (int i = 0; i < heightMap.Length; i++)
{
if (Single.IsNaN(heightMap[i]) || Single.IsInfinity(heightMap[i]))
{
heightMap[i] = 0f;
}
hfmin = (heightMap[i] < hfmin) ? heightMap[i] : hfmin;
hfmax = (heightMap[i] > hfmax) ? heightMap[i] : hfmax;
}
// store this for later reference.
// Note, we're storing it after we check it for anomolies above
_origheightmap = heightMap;
hfmin = 0;
hfmax = 256;
m_terrainShape = new btHeightfieldTerrainShape((int)Constants.RegionSize, (int)Constants.RegionSize, heightMap,
1.0f, hfmin, hfmax, (int)btHeightfieldTerrainShape.UPAxis.Z,
(int)btHeightfieldTerrainShape.PHY_ScalarType.PHY_FLOAT, false);
float AabbCenterX = Constants.RegionSize / 2f;
float AabbCenterY = Constants.RegionSize / 2f;
float AabbCenterZ = 0;
float temphfmin, temphfmax;
temphfmin = hfmin;
temphfmax = hfmax;
if (temphfmin < 0)
{
temphfmax = 0 - temphfmin;
temphfmin = 0 - temphfmin;
}
else if (temphfmin > 0)
{
temphfmax = temphfmax + (0 - temphfmin);
//temphfmin = temphfmin + (0 - temphfmin);
}
AabbCenterZ = temphfmax / 2f;
if (m_terrainPosition == null)
{
m_terrainPosition = new btVector3(AabbCenterX, AabbCenterY, AabbCenterZ);
}
else
{
try
{
m_terrainPosition.setValue(AabbCenterX, AabbCenterY, AabbCenterZ);
}
catch (ObjectDisposedException)
{
m_terrainPosition = new btVector3(AabbCenterX, AabbCenterY, AabbCenterZ);
}
}
if (m_terrainMotionState != null)
{
m_terrainMotionState.Dispose();
m_terrainMotionState = null;
}
m_terrainTransform = new btTransform(QuatIdentity, m_terrainPosition);
m_terrainMotionState = new btDefaultMotionState(m_terrainTransform);
TerrainBody = new btRigidBody(0, m_terrainMotionState, m_terrainShape);
TerrainBody.setUserPointer((IntPtr)0);
m_world.addRigidBody(TerrainBody);
}
static void Main(string[] args)
{
btVector3 testvec = new btVector3(-2, 1, 0);
Console.WriteLine(String.Format("Original: {0}", testvec.testStr()));
btVector3 testvec2 = testvec.absolute();
Console.WriteLine(String.Format("absolute: {0}", testvec2.testStr()));
Console.WriteLine(String.Format("angle:{0}", testvec.angle(testvec2)));
Console.WriteLine(String.Format("closestAxis(orig):{0}", testvec.closestAxis()));
btVector3 testvec3 = testvec.cross(testvec2);
Console.WriteLine(String.Format("cross: {0}", testvec3.testStr()));
Console.WriteLine(String.Format("distance: {0}", testvec.distance(testvec2)));
Console.WriteLine(String.Format("distance2: {0}", testvec.distance2(testvec2)));
Console.WriteLine(String.Format("dot: {0}", testvec.dot(testvec2)));
Console.WriteLine(String.Format("furthestAxis(orig): {0}", testvec.furthestAxis()));
btVector3 testvec4 = testvec.normalized();
Console.WriteLine(String.Format("normalized: {0}", testvec4.testStr()));
testvec4.setInterpolate3(testvec, testvec2, 0.5f);
Console.WriteLine(String.Format("interpolate3: {0}", testvec4.testStr()));
testvec4.setValue(7f, -0.09f, 2.5f);
Console.WriteLine(String.Format("setvec: {0}", testvec4.testStr()));
testvec4.setX(5.0f);
testvec4.setY(-0.25f);
testvec4.setZ(90f);
testvec.setValue(0, 0, -1024);
testvec2.setValue(256, 256, 1024);
Console.WriteLine(String.Format("setvecIndividual: {0}", testvec4.testStr()));
btAxisSweep3 testbtAxisSweep3 = new btAxisSweep3(testvec, testvec2, 50);
btDefaultCollisionConfiguration colconfig = new btDefaultCollisionConfiguration();
btCollisionDispatcher coldisp = new btCollisionDispatcher(colconfig);
btSequentialImpulseConstraintSolver seqimpconssol = new btSequentialImpulseConstraintSolver();
btDiscreteDynamicsWorld dynamicsWorld = new btDiscreteDynamicsWorld(coldisp, testbtAxisSweep3, seqimpconssol,
colconfig);
dynamicsWorld.setGravity(new btVector3(0, 0, -9.87f));
Console.WriteLine(String.Format("stepWorld: {0}", dynamicsWorld.stepSimulation((6f / 60), 5, (1f / 60))));
Console.WriteLine(String.Format("stepWorld: {0}", dynamicsWorld.stepSimulation((6f / 60), 5, (1f / 60))));
Console.WriteLine(String.Format("stepWorld: {0}", dynamicsWorld.stepSimulation((6f / 60), 5, (1f / 60))));
Console.WriteLine(String.Format("stepWorld: {0}", dynamicsWorld.stepSimulation((6f / 60), 5, (1f / 60))));
btQuaternion testquat = new btQuaternion(50, 0, 0, 1);
btQuaternion testquatnorm = testquat.normalized();
Console.WriteLine(String.Format("testquat: {0}", testquat.testStr()));
Console.WriteLine(String.Format("testquatnormalize: {0}", testquatnorm.testStr()));
Console.WriteLine(String.Format("testquatLength: {0}", testquat.length()));
Console.WriteLine(String.Format("testquatnormalizeLength: {0}", testquatnorm.length()));
float[] heightdata = new float[256 * 256];
for (int j = 0; j < 256 * 256; j++)
{
if (j % 2 == 0)
{
heightdata[j] = 21f;
}
else
{
heightdata[j] = 28f;
}
}
btHeightfieldTerrainShape obj = new btHeightfieldTerrainShape(256, 256, heightdata, 1.0f, 0, 256,
(int)btHeightfieldTerrainShape.UPAxis.Z,
(int)btHeightfieldTerrainShape.PHY_ScalarType.
PHY_FLOAT, false);
btCapsuleShape cap = new btCapsuleShape(0.23f, 3);
btTriangleMesh testMesh = new btTriangleMesh(true, false);
testMesh.addTriangle(new btVector3(1, 0, 1), new btVector3(1, 0, -1), new btVector3(-1, 0, -1), false);
testMesh.addTriangle(new btVector3(1, -1, 1), new btVector3(1, -1, -1), new btVector3(-1, -1, -1), false);
testMesh.addTriangle(new btVector3(1, -1, 1), new btVector3(1, 0, 1), new btVector3(-1, -1, -1), false);
testMesh.addTriangle(new btVector3(1, 0, 1), new btVector3(1, -1, -1), new btVector3(-1, 0, -1), false);
testMesh.addTriangle(new btVector3(1, -1, -1), new btVector3(-1, 0, -1), new btVector3(-1, -1, -1), false);
testMesh.addTriangle(new btVector3(1, -1, -1), new btVector3(1, 0, -1), new btVector3(-1, 0, -1), false);
testMesh.addTriangle(new btVector3(1, 0, 1), new btVector3(1, -1, -1), new btVector3(1, 0, -1), false);
testMesh.addTriangle(new btVector3(1, -1, 1), new btVector3(1, -1, -1), new btVector3(1, 0, 1), false);
btGImpactMeshShape meshtest = new btGImpactMeshShape(testMesh);
meshtest.updateBound();
btRigidBody groundbody = new btRigidBody(0,
new btDefaultMotionState(
new btTransform(new btQuaternion(0, 0, 0, 1),
new btVector3(128, 128, 256f / 2f))), obj,
new btVector3(0, 0, 0));
btRigidBody capbody = new btRigidBody(200,
new btDefaultMotionState(
new btTransform(new btQuaternion(0, 0, 0, 1),
new btVector3(128, 128, 25))), cap,
new btVector3(0, 0, 0));
btRigidBody meshbody = new btRigidBody(200,
new btDefaultMotionState(
new btTransform(new btQuaternion(0, 0, 0, 1),
new btVector3(128, 128, 29))), meshtest,
new btVector3(0, 0, 0));
btRigidBodyConstructionInfo constructioninfotest = new btRigidBodyConstructionInfo();
constructioninfotest.m_collisionShape = new btBoxShape(new btVector3(0.5f, 0.5f, 0.5f));
constructioninfotest.m_localInertia = new btVector3(0, 0, 0);
constructioninfotest.m_motionState = new btDefaultMotionState(new btTransform(new btQuaternion(0.3f, -0.4f, 0.8f, 0.1f), new btVector3(128.5f, 128, 25)),
new btTransform(new btQuaternion(0, 0, 0, 1), new btVector3(0, 0.25f, 0)));
constructioninfotest.m_startWorldTransform = new btTransform(new btQuaternion(0, 0, 0, 1), new btVector3(0, 0, 0));
constructioninfotest.m_mass = 2000000;
constructioninfotest.m_linearDamping = 0;
constructioninfotest.m_angularDamping = 0;
constructioninfotest.m_friction = 0.1f;
constructioninfotest.m_restitution = 0;
constructioninfotest.m_linearSleepingThreshold = 0.8f;
constructioninfotest.m_angularSleepingThreshold = 1;
constructioninfotest.m_additionalDamping = false;
constructioninfotest.m_additionalDampingFactor = 0.005f;
constructioninfotest.m_additionalLinearDampingThresholdSqr = 0.01f;
constructioninfotest.m_additionalAngularDampingThresholdSqr = 0.01f;
constructioninfotest.m_additionalAngularDampingFactor = 0.01f;
constructioninfotest.commit();
btGImpactCollisionAlgorithm.registerAlgorithm(coldisp);
btRigidBody cubetest = new btRigidBody(constructioninfotest);
dynamicsWorld.addRigidBody(groundbody);
dynamicsWorld.addRigidBody(cubetest);
dynamicsWorld.addRigidBody(capbody);
dynamicsWorld.addRigidBody(meshbody);
int frame = 0;
for (int i = 0; i < 26; i++)
{
int frames = dynamicsWorld.stepSimulation(((i % 60) / 60f), 10, (1f / 60));
frame += frames;
Console.WriteLine(String.Format("Cube: frame {0} frames: {1} POS:{2}, quat:{3}", frame, frames, cubetest.getInterpolationWorldTransform().getOrigin().testStr(), cubetest.getWorldTransform().getRotation().testStr()));
Console.WriteLine(String.Format("Cap: frame {0} frames: {1} POS:{2}, quat:{3}", frame, frames, capbody.getInterpolationWorldTransform().getOrigin().testStr(), capbody.getWorldTransform().getRotation().testStr()));
Console.WriteLine(String.Format("Mesh: frame {0} frames: {1} POS:{2}, quat:{3}", frame, frames, meshbody.getInterpolationWorldTransform().getOrigin().testStr(), meshbody.getWorldTransform().getRotation().testStr()));
}
dynamicsWorld.removeRigidBody(meshbody);
dynamicsWorld.removeRigidBody(capbody);
dynamicsWorld.removeRigidBody(cubetest);
dynamicsWorld.removeRigidBody(groundbody);
cubetest.Dispose();
groundbody.Dispose();
capbody.Dispose();
cap.Dispose();
obj.Dispose();
testbtAxisSweep3.Dispose();
dynamicsWorld.Dispose();
coldisp.Dispose();
colconfig.Dispose();
seqimpconssol.Dispose();
testvec.Dispose();
testvec2.Dispose();
testvec3.Dispose();
testvec4.Dispose();
}
