Function TestForObjectOnLedge

TombEngine/Game/collision/collide_item.cpp:253–324

}

void TestForObjectOnLedge(ItemInfo* item, CollisionInfo* coll)
{
	auto bbox = GameBoundingBox(item).ToBoundingOrientedBox(item->Pose);
	auto height = (bbox.Center - bbox.Extents).y - CLICK(1);

	for (int i = 0; i < 3; i++)
	{
		auto sinHeading = (i != 1) ? (phd_sin(coll->Setup.ForwardAngle + ANGLE((i * 90.0f) - 90.0f))) : 0;
		auto cosHeading = (i != 1) ? (phd_cos(coll->Setup.ForwardAngle + ANGLE((i * 90.0f) - 90.0f))) : 0;

		auto origin = Vector3(
			item->Pose.Position.x + (sinHeading * (coll->Setup.Radius)),
			height,
			item->Pose.Position.z + (cosHeading * (coll->Setup.Radius)));

		auto mxR = Matrix::CreateFromYawPitchRoll(TO_RAD(coll->Setup.ForwardAngle), 0.0f, 0.0f);
		auto direction = (Matrix::CreateTranslation(Vector3::UnitZ) * mxR).Translation();

		// DrawDebugSphere(origin, 16, Vector4::One, RendererDebugPage::CollisionStats);

		for (auto i : g_Level.Rooms[item->RoomNumber].NeighborRoomNumbers)
		{
			if (!g_Level.Rooms[i].Active())
				continue;

			int itemNumber = g_Level.Rooms[i].itemNumber;
			while (itemNumber != NO_VALUE)
			{
				auto* item2 = &g_Level.Items[itemNumber];
				auto* object = &Objects[item2->ObjectNumber];

				if (object->isPickup || object->collision == nullptr || !item2->Collidable || item2->Status == ITEM_INVISIBLE)
				{
					itemNumber = item2->NextItem;
					continue;
				}

				if (Vector3i::Distance(item->Pose.Position, item2->Pose.Position) < COLLISION_CHECK_DISTANCE)
				{
					auto box = GameBoundingBox(item2).ToBoundingOrientedBox(item2->Pose);
					float distance;

					if (box.Intersects(origin, direction, distance) && distance < (coll->Setup.Radius * 2))
					{
						coll->HitStatic = true;
						return;
					}
				}

				itemNumber = item2->NextItem;
			}

			for (auto& mesh : g_Level.Rooms[i].mesh)
			{
				if (!(mesh.Flags & StaticMeshFlags::SM_VISIBLE))
					continue;

				if (Vector3i::Distance(item->Pose.Position, mesh.Pose.Position) < COLLISION_CHECK_DISTANCE)