public Vector3 GetDirection(MapLocation.DirectionType dir)
{
switch (dir)
{
case MapLocation.DirectionType.North:
return(Vector3.UnitZ);
case MapLocation.DirectionType.South:
return(-Vector3.UnitZ);
case MapLocation.DirectionType.West:
return(-Vector3.UnitX);
case MapLocation.DirectionType.East:
return(Vector3.UnitX);
default:
return(Vector3.UnitZ);
}
}
public BlockInfo GetAdjacent(MapLocation.DirectionType dir)
{
switch (dir)
{
case MapLocation.DirectionType.North:
return(North);
case MapLocation.DirectionType.South:
return(South);
case MapLocation.DirectionType.East:
return(East);
case MapLocation.DirectionType.West:
return(West);
default:
return(null);
}
}
public MapLocation?Walk(MapLocation currentLocation, MapLocation.DirectionType dir)
{
var currentBlockInfo = GetBlockInfo(currentLocation.BlockX, currentLocation.BlockY);
var nextBlockInfo = currentBlockInfo.GetAdjacent(dir);
bool canWalk = nextBlockInfo.CanWalkThrough();
bool canWalkHalf = nextBlockInfo.CanWalkHalf();
if (!canWalk && !canWalkHalf)
{
// can't walk
return(null);
}
if (currentBlockInfo.CanWalkHalf())
{
// can't walk central of current block
switch (currentLocation.Position)
{
case MapLocation.PositionType.North:
if (dir == MapLocation.DirectionType.South)
{
return(null);
}
break;
case MapLocation.PositionType.South:
if (dir == MapLocation.DirectionType.North)
{
return(null);
}
break;
case MapLocation.PositionType.East:
if (dir == MapLocation.DirectionType.West)
{
return(null);
}
break;
case MapLocation.PositionType.West:
if (dir == MapLocation.DirectionType.East)
{
return(null);
}
break;
}
}
if (canWalk)
{
var result = new MapLocation(nextBlockInfo.BlockX, nextBlockInfo.BlockY);
result.Direction = dir;
return(result);
}
else
{
// can half walk
var result = new MapLocation(nextBlockInfo.BlockX, nextBlockInfo.BlockY);
result.SetPosition(dir);
return(result);
}
}
