public void updatePosition(SnakeGame parent)
{
Vector2 prevPos = positions[0];
Vector2 newPos;
switch (currDir)
{
case dir.UP:
positions[0] = new Vector2(positions[0].X, positions[0].Y - parent.getIncr());
if (positions[0].Y < parent.getIncr())
{
int fixedPos = parent.getWindowHeight() - parent.getIncr();
fixedPos -= fixedPos % parent.getIncr();
positions[0] = new Vector2(positions[0].X, fixedPos);
}
break;
case dir.DOWN:
positions[0] = new Vector2(positions[0].X, positions[0].Y + parent.getIncr());
if (positions[0].Y > parent.getWindowHeight() - parent.getIncr())
{
int fixedPos = parent.getIncr();
positions[0] = new Vector2(positions[0].X, fixedPos);
}
break;
case dir.LEFT:
positions[0] = new Vector2(positions[0].X - parent.getIncr(), positions[0].Y);
if (positions[0].X < parent.getIncr())
{
int fixedPos = parent.getWindowWidth() - parent.getIncr();
fixedPos -= fixedPos % parent.getIncr();
positions[0] = new Vector2(fixedPos, positions[0].Y);
}
break;
case dir.RIGHT:
positions[0] = new Vector2(positions[0].X + parent.getIncr(), positions[0].Y);
if (positions[0].X > parent.getWindowWidth() - parent.getIncr())
{
int fixedPos = parent.getIncr();
positions[0] = new Vector2(fixedPos, positions[0].Y);
}
break;
}
for (int i = 1; i < positions.Count; i++)
{
newPos = prevPos;
prevPos = positions[i];
positions[i] = newPos;
}
}
