public ShapeData(Collider collider)
{
bool dynamic = false;
if (collider is SphereCollider)
{
SphereCollider sphereCollider = collider as SphereCollider;
Vector3 scale = collider.transform.localScale;
geometry.sphere.radius = sphereCollider.radius * Mathf.Max(scale.x, scale.y, scale.z);
flags = Flex.MakeShapeFlags(Flex.CollisionShapeType.Sphere, dynamic);
shapeMin = Vector3.one * -geometry.sphere.radius;
shapeMax = Vector3.one * geometry.sphere.radius;
shapeCenter = sphereCollider.center;
shapeCenter.x *= scale.x; shapeCenter.y *= scale.y; shapeCenter.z *= scale.z;
}
else if (collider is CapsuleCollider)
{
CapsuleCollider capsuleCollider = collider as CapsuleCollider;
Vector3 scale = collider.transform.localScale;
if (capsuleCollider.direction == 1)
{
scale = new Vector3(scale.y, scale.z, scale.x);
}
if (capsuleCollider.direction == 2)
{
scale = new Vector3(scale.z, scale.x, scale.y);
}
geometry.capsule.radius = capsuleCollider.radius * Mathf.Max(scale.y, scale.z);
geometry.capsule.halfHeight = capsuleCollider.height * scale.x * 0.5f - geometry.capsule.radius;
flags = Flex.MakeShapeFlags(Flex.CollisionShapeType.Capsule, dynamic);
shapeMin = new Vector3(-geometry.capsule.halfHeight - geometry.capsule.radius, -geometry.capsule.radius, -geometry.capsule.radius);
shapeMax = new Vector3(geometry.capsule.halfHeight + geometry.capsule.radius, geometry.capsule.radius, geometry.capsule.radius);
shapeCenter = capsuleCollider.center;
shapeCenter.x *= scale.x; shapeCenter.y *= scale.y; shapeCenter.z *= scale.z;
if (capsuleCollider.direction == 1)
{
shapePreRotation = Quaternion.Euler(0.0f, 0.0f, 90.0f);
}
if (capsuleCollider.direction == 2)
{
shapePreRotation = Quaternion.Euler(0.0f, 90.0f, 0.0f);
}
}
else if (collider is BoxCollider)
{
BoxCollider boxCollider = collider as BoxCollider;
Vector3 scale = collider.transform.localScale;
Vector3 halfSize = new Vector3(boxCollider.size.x * scale.x * 0.5f, boxCollider.size.y * scale.y * 0.5f, boxCollider.size.z * scale.z * 0.5f);
geometry.box.halfExtents = halfSize;
flags = Flex.MakeShapeFlags(Flex.CollisionShapeType.Box, dynamic);
shapeMin = -halfSize;
shapeMax = halfSize;
shapeCenter = boxCollider.center;
shapeCenter.x *= scale.x; shapeCenter.y *= scale.y; shapeCenter.z *= scale.z;
}
else if (collider is MeshCollider)
{
MeshCollider meshCollider = collider as MeshCollider;
Mesh mesh = meshCollider.sharedMesh;
if (mesh)
{
Vector3 scale = collider.transform.localScale;
Vector3 boundsMin = new Vector3(mesh.bounds.min.x * scale.x, mesh.bounds.min.y * scale.y, mesh.bounds.min.z * scale.z);
Vector3 boundsMax = new Vector3(mesh.bounds.max.x * scale.x, mesh.bounds.max.y * scale.y, mesh.bounds.max.z * scale.z);
Vector3[] vertices = mesh.vertices;
int[] triangles = mesh.triangles;
if (vertices.Length > 0 && triangles.Length > 0)
{
bool useConvex = meshCollider.convex;
if (useConvex)
{
Vector4[] planes = new Vector4[triangles.Length / 3];
Vector3[] bounds = new Vector3[2];
int planeCount = FlexUtils.ConvexPlanes(ref vertices[0], ref scale, ref triangles[0], triangles.Length / 3, ref planes[0], ref bounds[0]);
// Convex meshes in Flex can't have more than 64 faces
if (planeCount <= 64)
{
m_flexConvex = Flex.CreateConvexMesh(FlexContainer.library);
Flex.Buffer planeBuffer = Flex.AllocBuffer(FlexContainer.library, planeCount, sizeof(float) * 4, Flex.BufferType.Host);
FlexUtils.FastCopy(planes, Flex.Map(planeBuffer)); Flex.Unmap(planeBuffer);
Flex.UpdateConvexMesh(FlexContainer.library, m_flexConvex, planeBuffer, planeCount, ref bounds[0], ref bounds[1]);
geometry.convexMesh.scale = Vector3.one;
geometry.convexMesh.mesh = m_flexConvex;
Flex.FreeBuffer(planeBuffer);
flags = Flex.MakeShapeFlags(Flex.CollisionShapeType.ConvexMesh, dynamic);
shapeMin = bounds[0];
shapeMax = bounds[1];
}
else
{
useConvex = false;
}
}
if (!useConvex)
{
int[] uniqueInds = new int[vertices.Length];
int[] originalToUniqueMap = new int[vertices.Length];
int uniqueVertCount = FlexExt.CreateWeldedMeshIndices(ref vertices[0], vertices.Length, ref uniqueInds[0], ref originalToUniqueMap[0], 0.0001f); // @@@
Vector4[] uniqueVerts = new Vector4[uniqueVertCount];
for (int i = 0; i < uniqueVertCount; ++i)
{
uniqueVerts[i] = new Vector3(vertices[uniqueInds[i]].x * scale.x, vertices[uniqueInds[i]].y * scale.y, vertices[uniqueInds[i]].z * scale.z);
}
Flex.Buffer vertexBuffer = Flex.AllocBuffer(FlexContainer.library, uniqueVerts.Length, sizeof(float) * 4, Flex.BufferType.Host);
FlexUtils.FastCopy(uniqueVerts, Flex.Map(vertexBuffer)); Flex.Unmap(vertexBuffer);
int[] indices = new int[triangles.Length];
for (int i = 0; i < triangles.Length; ++i)
{
indices[i] = originalToUniqueMap[triangles[i]];
}
Flex.Buffer indexBuffer = Flex.AllocBuffer(FlexContainer.library, indices.Length, sizeof(int), Flex.BufferType.Host);
FlexUtils.FastCopy(indices, Flex.Map(indexBuffer)); Flex.Unmap(indexBuffer);
m_flexMesh = Flex.CreateTriangleMesh(FlexContainer.library);
Flex.UpdateTriangleMesh(FlexContainer.library, m_flexMesh, vertexBuffer, indexBuffer, uniqueVertCount, indices.Length / 3, ref boundsMin, ref boundsMax);
geometry.triMesh.scale = Vector3.one;
geometry.triMesh.mesh = m_flexMesh;
Flex.FreeBuffer(vertexBuffer);
Flex.FreeBuffer(indexBuffer);
flags = Flex.MakeShapeFlags(Flex.CollisionShapeType.TriangleMesh, dynamic);
Flex.GetTriangleMeshBounds(FlexContainer.library, m_flexMesh, ref shapeMin, ref shapeMax);
}
}
}
}
shapePrevPosition = collider.transform.position + collider.transform.rotation * shapeCenter;
shapePrevRotation = collider.transform.rotation * shapePreRotation;
}
public void ProcessColliders(IntPtr solverPtr, Flex.Memory memory)
{
m_meshColliders = FindObjectsOfType <MeshCollider>();
m_collidersCount = m_meshColliders.Length;
m_collidersGeometry = new Flex.CollisionTriangleMesh[m_collidersCount];
m_collidersPositions = new Vector4[m_collidersCount];
m_collidersPrevPositions = new Vector4[m_collidersCount];
m_collidersRotations = new Quaternion[m_collidersCount];
m_collidersPrevRotations = new Quaternion[m_collidersCount];
m_collidersAabbMin = new Vector4[m_collidersCount];
m_collidersAabbMax = new Vector4[m_collidersCount];
m_collidersStarts = new int[m_collidersCount];
m_collidersFlags = new int[m_collidersCount];
for (int i = 0; i < m_collidersCount; i++)
{
Mesh mesh = m_meshColliders[i].GetComponent <MeshFilter>().mesh;
MeshCollider meshCollider = m_meshColliders[i];
Transform tr = m_meshColliders[i].transform;
Vector3[] vertices = mesh.vertices;
int[] triangles = mesh.triangles;
Vector3 localLowerBound = mesh.bounds.min;
Vector3 localUpperBound = mesh.bounds.max;
// FlexUtils.GetBounds(vertices, out localLowerBound, out localUpperBound);
IntPtr meshPtr = Flex.CreateTriangleMesh();
Flex.UpdateTriangleMesh(meshPtr, vertices, triangles, mesh.vertexCount, mesh.triangles.Length / 3, ref localLowerBound, ref localUpperBound, memory);
//TODO
//FlexAPI.FlexCollisionGeometry geo = new FlexAPI.FlexCollisionGeometry();
//geo.mTriMesh.mMesh = meshPtr;
//geo.mTriMesh.mScale = tr.lossyScale.x;
//FlexAPI.FlexCollisionGeometry[] shapeGeometry = new FlexAPI.FlexCollisionGeometry[] { geo };
Flex.CollisionTriangleMesh triCol = new Flex.CollisionTriangleMesh();
triCol.mMesh = meshPtr;
triCol.mScale = tr.lossyScale.x;
m_collidersGeometry[i] = triCol;
m_collidersPositions[i] = tr.position;
m_collidersPrevPositions[i] = tr.position;
m_collidersRotations[i] = tr.rotation;
m_collidersPrevRotations[i] = tr.rotation;
m_collidersAabbMin[i] = meshCollider.bounds.min;
m_collidersAabbMax[i] = meshCollider.bounds.max;
m_collidersStarts[i] = i;
m_collidersFlags[i] = Flex.MakeShapeFlags(Flex.CollisionShapeType.eFlexShapeTriangleMesh, !m_meshColliders[i].gameObject.isStatic);
}
UpdateColliders(solverPtr, memory);
}
