protected bool IsSafe(Vector2 moveDirection, float distance, bool ignorePredict) { Vector2 start = m_Snake.GetHeadPosition(); Vector2 end = start + moveDirection * distance; Vector2 direction = end - start; Vector2 directionReciprocal = hwmMath.Reciprocal(direction); if (!slWorld.GetInstance().GetMap().GetMapBox().IsInsideOrOn(end)) { return(false); } for (int iNode = 0; iNode < ms_SnakeQuadtreeNodes.Count; iNode++) { hwmQuadtree <slSnake.QuadtreeElement> .Node iterNode = ms_SnakeQuadtreeNodes[iNode]; hwmBetterList <slSnake.QuadtreeElement> elements = iterNode.GetElements(); for (int iElement = elements.Count - 1; iElement >= 0; iElement--) { slSnake.QuadtreeElement iterElement = elements[iElement]; if (iterElement.Owner != m_Snake.GetGuid()) { if (iterElement.NodeType != slConstants.NodeType.Predict) { if (iterElement.AABB.LineIntersection(start, end, direction, directionReciprocal)) { return(false); } } else if (!ignorePredict) { Quaternion rotation = Quaternion.Inverse(iterElement.GetRotation()); Vector2 center = iterElement.GetPosition(); start = hwmMath.QuaternionMultiplyVector(rotation, start - center); end = hwmMath.QuaternionMultiplyVector(rotation, end - center); if (((slSnake.PredictNode)iterElement).Box.LineIntersection(start, end)) { return(false); } } } } } return(true); }
public virtual void Active(slSnake owner) { Owner = owner.GetGuid(); Radius = owner.GetProperties().BodyColliderRadius; }