public Player(int gridX, int gridY, int count = 1)
{
X = gridX;
Y = gridY;
for (int i = 0; i < count; i++)
{
segs.Add(new Segment(gridX - i, gridY));
//collisionMap[x, y] = true;
//segments.Add(GameSurface.ToScreenCoords(x, y));
}
lastSegmentIndex = segs.Count - 1;
GameSurface.PlaceFood(20, 20);
}
public void Update() //remove last element and add a new one in front
{
if (partStep >= 1.0f)
{
int wholeSteps = (int)partStep;
partStep = 0.0f;
while (wholeSteps > 0) //update until all steps are processed; might not be the best solution if the game is running faster
{
switch (state)
{
case State.UP:
Y -= 1;
break;
case State.DOWN:
Y += 1;
break;
case State.LEFT:
X -= 1;
break;
case State.RIGHT:
X += 1;
break;
}
//Collision detection
int w = GameSurface.gridWidth;
int h = GameSurface.gridHeight;
if ((X < 0 || Y < 0 || X >= w || Y >= h) ||
Segment.collisionMap[X, Y])
{
state = State.CRASHED;
return;
}
var i = segs[lastSegmentIndex]; //get last segment...
if (GameSurface.food.X == X && GameSurface.food.Y == Y) //food collision
{
segs.Insert(lastSegmentIndex, new Segment(i.X, i.Y));
collected++;
GameSurface.PlaceFood();
//AddSegment = false;
}
else
{
if (lastSegmentIndex > 0)
{
lastSegmentIndex--;
}
else
{
lastSegmentIndex = segs.Count - 1;
}
}
i.SetCoords(X, Y); //...so we can move it to the front
//var i = segments[segments.Count - 1];
//segments.RemoveAt(segments.Count - 1);
//segments.Insert(0, GameSurface.ToScreenCoords(X, Y));
wholeSteps--;
}
}
}