Function CanCrouchRoll

TombEngine/Game/Lara/PlayerContext.cpp:506–550

	}

	bool CanCrouchRoll(const ItemInfo& item, const CollisionInfo& coll)
	{
		constexpr auto FLOOR_BOUND				= CRAWL_STEPUP_HEIGHT;
		constexpr auto FLOOR_TO_CEIL_HEIGHT_MAX = LARA_HEIGHT_CRAWL;
		constexpr auto WATER_HEIGHT_MAX			= -CLICK(1);
		constexpr auto PROBE_DIST_MAX			= BLOCK(1);
		constexpr auto STEP_DIST				= BLOCK(0.25f);

		const auto& player = GetLaraInfo(item);

		// 1) Check if crouch roll is enabled.
		if (!g_GameFlow->GetSettings()->Animations.CrouchRoll)
			return false;

		// 2) Test water depth.
		if (player.Context.WaterSurfaceDist < WATER_HEIGHT_MAX)
			return false;

		// TODO: Extend point collision struct to also find water depths.
		float dist = 0.0f;
		auto pointColl0 = GetPointCollision(item);

		// 3) Test continuity of path.
		while (dist < PROBE_DIST_MAX)
		{
			// Get point collision.
			dist += STEP_DIST;
			auto pointColl1 = GetPointCollision(item, item.Pose.Orientation.y, dist, -LARA_HEIGHT_CRAWL);

			int floorHeightDelta = abs(pointColl0.GetFloorHeight() - pointColl1.GetFloorHeight());
			int floorToCeilHeight = abs(pointColl1.GetCeilingHeight() - pointColl1.GetFloorHeight());

			// Assess point collision.
			if (floorHeightDelta > FLOOR_BOUND ||				 // Avoid floor height delta beyond crawl stepup threshold.
				floorToCeilHeight <= FLOOR_TO_CEIL_HEIGHT_MAX || // Avoid narrow spaces.
				pointColl1.IsSteepFloor())					 // Avoid slippery floor slopes.
			{
				return false;
			}

			pointColl0 = std::move(pointColl1);
		}

		return true;
	}

	bool CanCrawlForward(const ItemInfo& item, const CollisionInfo& coll)
	{