/* Checks bounds-to-cell collision: objects collide if caller's cell collides with callee's
* bounding box */
public bool CheckBounds2CellCollision(FieldCell other)
{
return Math.Abs(px - other.CellCenterPx()) < Constant.CELL_WIDTH && Math.Abs(py - other.CellCenterPy()) < Constant.CELL_HEIGHT;
}
public void SetRelativeTo(FieldCell cell, int stepX, int stepY)
{
float posX = stepX != 0 ? (cell.CellCenterPx() + stepX * Constant.CELL_WIDTH) : px;
float posY = stepY != 0 ? (cell.CellCenterPy() + stepY * Constant.CELL_HEIGHT) : py;
SetPos(posX, posY);
}
/* Checks bounds-to-cell collision: objects collide if caller's cell collides with callee's
* bounding box */
public bool CheckBounds2CellCollision(FieldCell other)
{
return(Math.Abs(px - other.CellCenterPx()) < Constant.CELL_WIDTH && Math.Abs(py - other.CellCenterPy()) < Constant.CELL_HEIGHT);
}
public void MoveOutOfCell(FieldCell c)
{
Debug.Assert(IsMoving());
switch (direction)
{
case Direction.LEFT:
Debug.Assert(c.px < px);
if (px - c.CellCenterPx() < Constant.CELL_WIDTH)
{
SetRelativeTo(c, 1, 0);
}
break;
case Direction.RIGHT:
Debug.Assert(c.px > px);
if (c.CellCenterPx() - px < Constant.CELL_WIDTH)
{
SetRelativeTo(c, -1, 0);
}
break;
case Direction.UP:
Debug.Assert(c.py < py);
if (py - c.CellCenterPy() < Constant.CELL_HEIGHT)
{
SetRelativeTo(c, 0, 1);
}
break;
case Direction.DOWN:
Debug.Assert(c.py > py);
if (c.CellCenterPy() - py < Constant.CELL_HEIGHT)
{
SetRelativeTo(c, 0, -1);
}
break;
}
}