public static FloatRect RectCollision(Vector2 pos, Vector2 lastPos, FloatRect rct)
{
//检测上一帧位置与当前位置，连线是否与Rect边界存在交点
Vector2 leftVec = Utils.VerticalCrossPoint(lastPos, pos, rct.left);
Vector2 rightVec = Utils.VerticalCrossPoint(lastPos, pos, rct.right);
Vector2 bottomVec = Utils.HorizontalCrossPoint(lastPos, pos, rct.bottom);
Vector2 topVec = Utils.HorizontalCrossPoint(lastPos, pos, rct.top);
//如果X轴未变化，统一 上、下交点的X值
if (lastPos.x == (double)pos.x)
{
bottomVec = new Vector2(lastPos.x, rct.bottom);
topVec = new Vector2(lastPos.x, rct.top);
}
//如果上一帧位置不再Rect中，计算两帧距离变化
float dst = !rct.Vector2Inside(lastPos) ? Vector2.Distance(lastPos, pos) : float.MaxValue;
Vector2 upperRight = new Vector2(0.0f, 0.0f);
Vector2 lowerLeft = pos;
//如果左边界交点Y值 在Top和Bottom之间 && 上一帧位置和交点位置小于距离：证明位移与Rect发生碰撞，从左边界进入
if (leftVec.y >= (double)rct.bottom && leftVec.y <= (double)rct.top && Utils.DistLess(lastPos, leftVec, dst))
{
lowerLeft = leftVec;
dst = Vector2.Distance(lastPos, leftVec);
upperRight = new Vector2(1f, 0.0f);
}
//右边界碰撞
if (rightVec.y >= (double)rct.bottom && rightVec.y <= (double)rct.top && Utils.DistLess(lastPos, rightVec, dst))
{
lowerLeft = rightVec;
dst = Vector2.Distance(lastPos, rightVec);
upperRight = new Vector2(-1f, 0.0f);
}
//下边界碰撞
if (bottomVec.x >= (double)rct.left && bottomVec.x <= (double)rct.right && Utils.DistLess(lastPos, bottomVec, dst))
{
lowerLeft = bottomVec;
dst = Vector2.Distance(lastPos, bottomVec);
upperRight = new Vector2(0.0f, 1f);
}
//上边界碰撞
if (topVec.x >= (double)rct.left && topVec.x <= (double)rct.right && Utils.DistLess(lastPos, topVec, dst))
{
lowerLeft = topVec;
Vector2.Distance(lastPos, topVec);
upperRight = new Vector2(0.0f, -1f);
}
return(FloatRect.MakeFromVector2(lowerLeft, upperRight));
}
public FloatRect TileRect(IntVector2 pos)
{
return(FloatRect.MakeFromVector2(this.MiddleOfTile(pos) - new Vector2(10f, 10f), this.MiddleOfTile(pos) + new Vector2(10f, 10f)));
}
// Token: 0x06001C81 RID: 7297 RVA: 0x001847C0 File Offset: 0x001829C0
private void FindGrabPos()
{
if (grabDelay > 0)
{
grabDelay--;
return;
}
IntVector2?intVector = null;
int num = 0;
while (num < 9 && intVector == null)
{
intVector = SharedPhysics.RayTraceTilesForTerrainReturnFirstSolid(room, BasePos, room.GetTilePosition(desiredGrabPos) + Custom.eightDirectionsAndZero[num] * 5);
if (intVector != null && room.GetTile(intVector.Value + new IntVector2(0, 1)).Solid)
{
intVector = null;
}
num++;
}
if (intVector != null)
{
if (grabDest == null || GripPointAttractiveness(intVector.Value) > GripPointAttractiveness(grabDest.Value))
{
MoveGrabDest(Custom.RestrictInRect(FloatBase + tentacleDir * Vector2.Distance(FloatBase, room.MiddleOfTile(intVector.Value)) * 0.5f, FloatRect.MakeFromVector2(room.MiddleOfTile(intVector.Value) - new Vector2(11f, 11f), room.MiddleOfTile(intVector.Value) + new Vector2(11f, 11f))));
sureOfFootingCounter = 0;
}
else
{
sureOfFootingCounter++;
}
}
}