//Generate a bounding box from a mesh in world space
//Is similar to AABB but takes orientation into account so is sometimes smaller
//which is useful for collision detection
public Box(Mesh mesh, Transform meshTrans)
{
Bounds bounds = mesh.bounds;
Vector3 halfSize = bounds.extents;
Vector3 xVec = Vector3.right * halfSize.x;
Vector3 yVec = Vector3.up * halfSize.y;
Vector3 zVec = Vector3.forward * halfSize.z;
Vector3 top = bounds.center + yVec;
Vector3 bottom = bounds.center - yVec;
Vector3 topFR = top + zVec + xVec;
Vector3 topFL = top + zVec - xVec;
Vector3 topBR = top - zVec + xVec;
Vector3 topBL = top - zVec - xVec;
Vector3 bottomFR = bottom + zVec + xVec;
Vector3 bottomFL = bottom + zVec - xVec;
Vector3 bottomBR = bottom - zVec + xVec;
Vector3 bottomBL = bottom - zVec - xVec;
//Local to world space
topFR = meshTrans.TransformPoint(topFR);
topFL = meshTrans.TransformPoint(topFL);
topBR = meshTrans.TransformPoint(topBR);
topBL = meshTrans.TransformPoint(topBL);
bottomFR = meshTrans.TransformPoint(bottomFR);
bottomFL = meshTrans.TransformPoint(bottomFL);
bottomBR = meshTrans.TransformPoint(bottomBR);
bottomBL = meshTrans.TransformPoint(bottomBL);
this.topFR = topFR.ToMyVector3();
this.topFL = topFL.ToMyVector3();
this.topBR = topBR.ToMyVector3();
this.topBL = topBL.ToMyVector3();
this.bottomFR = bottomFR.ToMyVector3();
this.bottomFL = bottomFL.ToMyVector3();
this.bottomBR = bottomBR.ToMyVector3();
this.bottomBL = bottomBL.ToMyVector3();
}
