Function ItemPushStatic

TombEngine/Game/collision/collide_item.cpp:795–867

NOTE: Previously ItemPushLaraStatic().

// NOTE: Previously ItemPushLaraStatic().
bool ItemPushStatic(ItemInfo* item, const StaticMesh& mesh, CollisionInfo* coll)
{
	const auto& bounds = GetBoundsAccurate(mesh, false);

	float sinY = phd_sin(mesh.Pose.Orientation.y);
	float cosY = phd_cos(mesh.Pose.Orientation.y);
	
	auto direction = item->Pose.Position - mesh.Pose.Position;
	auto dz = item->Pose.Position.z - mesh.Pose.Position.z;
	auto rx = (direction.x * cosY) - (direction.z * sinY);
	auto rz = (direction.z * cosY) + (direction.x * sinY);
	auto minX = bounds.X1 - coll->Setup.Radius;
	auto maxX = bounds.X2 + coll->Setup.Radius;
	auto minZ = bounds.Z1 - coll->Setup.Radius;
	auto maxZ = bounds.Z2 + coll->Setup.Radius;

	if (abs(direction.x) > BLOCK(4.5f) || abs(direction.z) > BLOCK(4.5f) ||
		rx <= minX || rx >= maxX ||
		rz <= minZ || rz >= maxZ)
	{
		return false;
	}

	auto left = rx - minX;
	auto top = maxZ - rz;
	auto bottom = rz - minZ;
	auto right = maxX - rx;

	if (right <= left && right <= top && right <= bottom)
		rx += right;
	else if (left <= right && left <= top && left <= bottom)
		rx -= left;
	else if (top <= left && top <= right && top <= bottom)
		rz += top;
	else
		rz -= bottom;

	item->Pose.Position.x = mesh.Pose.Position.x + cosY * rx + sinY * rz;
	item->Pose.Position.z = mesh.Pose.Position.z + cosY * rz - sinY * rx;

	coll->Setup.LowerFloorBound = NO_LOWER_BOUND;
	coll->Setup.UpperFloorBound = -STEPUP_HEIGHT;
	coll->Setup.LowerCeilingBound = 0;

	auto prevHeadingAngle = coll->Setup.ForwardAngle;
	coll->Setup.ForwardAngle = phd_atan(item->Pose.Position.z - coll->Setup.PrevPosition.z, item->Pose.Position.x - coll->Setup.PrevPosition.x);

	GetCollisionInfo(coll, item);

	coll->Setup.ForwardAngle = prevHeadingAngle;

	if (coll->CollisionType == CollisionType::None)
	{
		coll->Setup.PrevPosition = item->Pose.Position;
		if (item->IsLara())
			UpdateLaraRoom(item, -coll->Setup.Height / 2);
	}
	else