/// <summary>最小外接矩形の上下左右の座標(ローカル座標)を返す</summary>
public static CubeEndPoint minimumCircumscribedCubeEndPoint(this SphereCollider aCollider)
{
CubeEndPoint tPoints = new CubeEndPoint();
tPoints.top = aCollider.radius + aCollider.center.y;
tPoints.bottom = -aCollider.radius + aCollider.center.y;
tPoints.back = aCollider.radius + aCollider.center.z;
tPoints.front = -aCollider.radius + aCollider.center.z;
tPoints.left = -aCollider.radius + aCollider.center.x;
tPoints.right = aCollider.radius + aCollider.center.x;
return(tPoints);
}
// ** 最小外接矩形サイズ ローカル **
/// <summary>最小外接矩形の上下左右の座標(ローカル座標)を返す</summary>
public static CubeEndPoint minimumCircumscribedCubeEndPoint(this BoxCollider aCollider)
{
CubeEndPoint tPoints = new CubeEndPoint();
tPoints.top = aCollider.size.y / 2f + aCollider.center.y;
tPoints.bottom = -aCollider.size.y / 2f + aCollider.center.y;
tPoints.back = aCollider.size.z / 2f + aCollider.center.z;
tPoints.front = -aCollider.size.z / 2f + aCollider.center.z;
tPoints.left = -aCollider.size.x / 2f + aCollider.center.x;
tPoints.right = aCollider.size.x / 2f + aCollider.center.x;
return(tPoints);
}
public CubeEndPoint copy()
{
CubeEndPoint tCopy = new CubeEndPoint();
tCopy.top = top;
tCopy.bottom = bottom;
tCopy.back = back;
tCopy.front = front;
tCopy.left = left;
tCopy.right = right;
return(tCopy);
}
/// <summary>最小外接矩形の上下左右の座標(ローカル座標)を返す</summary>
public static CubeEndPoint minimumCircumscribedCubeEndPoint(this MeshCollider aCollider)
{
CubeEndPoint tPoints = new CubeEndPoint();
tPoints.top = aCollider.sharedMesh.vertices[0].y;
tPoints.bottom = aCollider.sharedMesh.vertices[0].y;
tPoints.back = aCollider.sharedMesh.vertices[0].z;
tPoints.front = aCollider.sharedMesh.vertices[0].z;
tPoints.left = aCollider.sharedMesh.vertices[0].x;
tPoints.right = aCollider.sharedMesh.vertices[0].x;
foreach (Vector3 tPoint in aCollider.sharedMesh.vertices)
{
//上下
if (tPoints.top < tPoint.y)
{
tPoints.top = tPoint.y;
}
else if (tPoint.y < tPoints.bottom)
{
tPoints.bottom = tPoint.y;
}
//奥手前
if (tPoints.back < tPoint.z)
{
tPoints.back = tPoint.z;
}
else if (tPoint.z < tPoints.front)
{
tPoints.front = tPoint.z;
}
//左右
if (tPoints.right < tPoint.x)
{
tPoints.right = tPoint.x;
}
else if (tPoint.x < tPoints.left)
{
tPoints.left = tPoint.x;
}
}
return(tPoints);
}
public static CubeEndPoint extractCubeEndPoint(Vector3[] aPoints)
{
CubeEndPoint tPoints = new CubeEndPoint();
tPoints.top = aPoints[0].y;
tPoints.bottom = aPoints[0].y;
tPoints.back = aPoints[0].z;
tPoints.front = aPoints[0].z;
tPoints.left = aPoints[0].x;
tPoints.right = aPoints[0].x;
foreach (Vector3 tPoint in aPoints)
{
//上下
if (tPoints.top < tPoint.y)
{
tPoints.top = tPoint.y;
}
else if (tPoint.y < tPoints.bottom)
{
tPoints.bottom = tPoint.y;
}
//奥手前
if (tPoints.back < tPoint.z)
{
tPoints.back = tPoint.z;
}
else if (tPoint.z < tPoints.front)
{
tPoints.front = tPoint.z;
}
//左右
if (tPoints.right < tPoint.x)
{
tPoints.right = tPoint.x;
}
else if (tPoint.x < tPoints.left)
{
tPoints.left = tPoint.x;
}
}
return(tPoints);
}
/// <summary>
/// 二つのcolliderの最小外接矩形のXZ平面上の距離を返す(引数2から引数1へ向かうベクトル)(重なっている場合はゼロベクトル)
/// </summary>
/// <returns>最小外接矩形のXZ平面上の距離(引数2から引数1へ向かうベクトル)</returns>
/// <param name="aCollider1">A collider1.</param>
/// <param name="aCollider2">A collider2.</param>
public static Vector2 planeDistance(Collider aCollider1, Collider aCollider2)
{
CubeEndPoint tEnd1 = aCollider1.minimumCircumscribedCubeEndPoint();
CubeEndPoint tEnd2 = aCollider2.minimumCircumscribedCubeEndPoint();
if (tEnd1.right <= tEnd2.left)
{
//1が左
if (tEnd1.back <= tEnd2.front)
{
//1が下
return(new Vector2(tEnd1.right - tEnd2.left, tEnd1.back - tEnd2.front));
}
else if (tEnd2.back <= tEnd1.back)
{
//1が上
return(new Vector2(tEnd1.right - tEnd2.left, tEnd1.front - tEnd2.back));
}
else
{
//Y方向重なり
return(new Vector2(tEnd1.right - tEnd2.left, 0));
}
}
else if (tEnd2.right <= tEnd1.left)
{
//1が右
if (tEnd1.back <= tEnd2.front)
{
//1が下
return(new Vector2(tEnd1.left - tEnd2.right, tEnd1.back - tEnd2.front));
}
else if (tEnd2.back <= tEnd1.back)
{
//1が上
return(new Vector2(tEnd1.left - tEnd2.right, tEnd1.front - tEnd2.back));
}
else
{
//Y方向重なり
return(new Vector2(tEnd1.left - tEnd2.right, 0));
}
}
else
{
//X方向重なり
if (tEnd1.back <= tEnd2.front)
{
//1が下
return(new Vector2(0, tEnd1.back - tEnd2.front));
}
else if (tEnd2.back <= tEnd1.back)
{
//1が上
return(new Vector2(0, tEnd1.front - tEnd2.back));
}
else
{
//Y方向重なり
return(new Vector2(0, 0));
}
}
}
/// <summary>最小外接矩形のサイズを返す</summary>
public static Vector3 minimumCircumscribedCube(this MeshCollider aCollider)
{
CubeEndPoint tEndPoint = aCollider.minimumCircumscribedCubeEndPoint();
return(new Vector3(tEndPoint.right - tEndPoint.left, tEndPoint.top - tEndPoint.bottom, tEndPoint.back - tEndPoint.front));
}