public void SetBodyType(cpBodyType type)
{
cpBodyType oldType = bodyType;
if (oldType == type)
{
return;
}
// Static bodies have their idle timers set to infinity.
// Non-static bodies should have their idle timer reset.
nodeIdleTime = (type == cpBodyType.STATIC ? cp.Infinity : 0.0f);
if (type == cpBodyType.DYNAMIC)
{
this.m = this.i = 0.0f;
this.m_inv = this.i_inv = cp.Infinity;
AccumulateMassFromShapes();
}
else
{
this.m = this.i = cp.Infinity;
this.m_inv = this.i_inv = 0.0f;
this.v = cpVect.Zero;
this.w = 0.0f;
}
// If the body is added to a space already, we'll need to update some space data structures.
if (space != null)
{
cp.AssertSpaceUnlocked(space);
if (oldType == cpBodyType.STATIC)
{
// TODO This is probably not necessary
// cpBodyActivateStatic(body, NULL);
}
else
{
Activate();
}
// Move the bodies to the correct array.
List <cpBody> fromArray = space.ArrayForBodyType(oldType);
List <cpBody> toArray = space.ArrayForBodyType(type);
if (fromArray != toArray)
{
fromArray.Remove(this);
toArray.Add(this);
}
// Move the body's shapes to the correct spatial index.
cpBBTree fromIndex = (oldType == cpBodyType.STATIC ? space.staticShapes : space.dynamicShapes);
cpBBTree toIndex = (type == cpBodyType.STATIC ? space.staticShapes : space.dynamicShapes);
if (fromIndex != toIndex)
{
eachShape((s, o) =>
{
fromIndex.Remove(s.hashid);
toIndex.Insert(s.hashid, s);
}, null);
}
}
}
