/* **************** DoorIsOnCell() ****************
* Determines whether a Door is "on" a Cell--that is to say that the Door's
* location Vector3 falls somewhere on a vertical surface of the Cell. Be-
* cause the Door's adjusted location Vector3 is used if the Door is on the
* Cell, this calculated value is an out parameter.
*
* Parameters:
* door (Door): Door to evaluate
* doorRoomLoc (Vector3): Local position Vector3 of the Room that the
* Door is in
* doorRoomRot (float): Local y rotation of the Room that the Door is in
* cell (Cell): Cell to evaluate
* cellRoomLoc (Vector3): Local position Vector3 of the Room that the
* Cell is in
* cellRoomRot (float): Local y rotation of the Room that the Cell is in
*
* Out Parameters:
* doorLoc (Vector3): Local position Vector3 of the Door relative to the
* it's Room's parent Transform
*
* Returns:
* bool: true iff Door is on one of the vertical planes of the Cell
*/
private static bool DoorIsOnCell(Door door, Vector3 doorRoomLoc, float doorRoomRot, Cell cell, Vector3 cellRoomLoc, float cellRoomRot, out Vector3 doorLoc)
{
doorLoc = doorRoomLoc + Quaternion.AngleAxis(doorRoomRot, Vector3.up) * door.location;
doorLoc = RPGUtil.RoundVec3(doorLoc, 1);
Vector3 minCorner, maxCorner;
GetMinAndMaxCorners(cell, cellRoomLoc, cellRoomRot, out minCorner, out maxCorner);
/*
* Hopefully the spacing of this return statements help clarify what it does, but in case it doesn't:
* First and foremost, the door must fall in the cell's y range, since all doors are perpendicular to the XZ plane
* There are two cases for the next check:
* Case 1: The door is parallel to the YZ plane
* The door must then be on the x boundary of the cell (either the min or max),
* and the door must fall in the cell's z range
* Case 2: The door is parallel to the XY plane
* The door must then be on the z boundary of the cell (either the min or max)
* and the door must fall in the cell's x range
*/
return
(minCorner.y < doorLoc.y
&&
doorLoc.y < maxCorner.y
&&
(
(
(
doorLoc.x == minCorner.x
||
doorLoc.x == maxCorner.x
)
&&
minCorner.z < doorLoc.z
&&
doorLoc.z < maxCorner.z
)
||
(
(
doorLoc.z == minCorner.z
||
doorLoc.z == maxCorner.z
)
&&
minCorner.x < doorLoc.x
&&
doorLoc.x < maxCorner.x
)
));
}
/* **************** GetMinAndMaxCorners() ****************
* Void method that calculates the min and max corners of a Cell, taking
* into account the Cell's Room's location and rotation.
*
* Parameters:
* cell (Cell): Cell to evaluate
* loc (Vector3): Local position Vector3 of the Room that the Cell is in
* rot (float): Local y rotation of the Room that the Cell is in
*
* Out Parameters:
* minCorner (Vector3Int): Vector3Int with the minimum x, y, and z values
* out of the corner Vector3s of the Cell, adjusted for location and
* rotation
* maxCorner (Vector3Int): Vector3Int with the maximum x, y, and z values
* out of the corner Vector3s of the Cell, adjusted for location and
* rotation
*/
private static void GetMinAndMaxCorners(Cell cell, Vector3 loc, float rot, out Vector3 minCorner, out Vector3 maxCorner)
{
Vector3 corner1 = RPGUtil.RoundVec3(
loc + Quaternion.AngleAxis(rot, Vector3.up) * cell.corner1);
Vector3 corner2 = RPGUtil.RoundVec3(
loc + Quaternion.AngleAxis(rot, Vector3.up) * cell.corner2);
minCorner = RPGUtil.RoundVec3(new Vector3(
Mathf.Min(corner1.x, corner2.x),
Mathf.Min(corner1.y, corner2.y),
Mathf.Min(corner1.z, corner2.z)));
maxCorner = RPGUtil.RoundVec3(new Vector3(
Mathf.Max(corner1.x, corner2.x),
Mathf.Max(corner1.y, corner2.y),
Mathf.Max(corner1.z, corner2.z)));
}