"pacman grid movement" Code Answer's
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pacman grid movement
Grieving Goosander
on Jul 24, 2020
// Detect user input and set direction
if (Keyboard.GetState().IsKeyDown(Keys.Down)) _direction = new Vector2(0, 1);
if (Keyboard.GetState().IsKeyDown(Keys.Right)) _direction = new Vector2(1, 0);
if (Keyboard.GetState().IsKeyDown(Keys.Up)) _direction = new Vector2(0, -1);
if (Keyboard.GetState().IsKeyDown(Keys.Left)) _direction = new Vector2(-1, 0);
// If there's no target and we can move in the chosen direction, set new target to be the next tile
if (_target == null)
if (CanMoveInDirection(_position, _direction))
_target = _position + _direction * 32;
// If there's a target, then move pacman towards that location, and clear target when destination is reached
if (_target != null)
if (MoveTowardsPoint(_target.Value, (float) gameTime.ElapsedGameTime.TotalSeconds))
_target = null;Source: gamedev.stackexchange.com
pacman grid movement
Grieving Goosander
on Jul 24, 2020
private Vector2 _position = new Vector2(32, 32);
private const float Speed = 156;
private Vector2 _direction = new Vector2(0, 1);
private Vector2? _target;Source: gamedev.stackexchange.com
pacman grid movement
Grieving Goosander
on Jul 24, 2020
private bool MoveTowardsPoint(Vector2 goal, float elapsed)
{
// If we're already at the goal return immediatly
if (_position == goal) return true;
// Find direction from current position to goal
Vector2 direction = Vector2.Normalize(goal - _position);
// Move in that direction
_position += direction * Speed * elapsed;
// If we moved PAST the goal, move it back to the goal
if (Math.Abs(Vector2.Dot(direction, Vector2.Normalize(goal - _position)) + 1) < 0.1f)
_position = goal;
// Return whether we've reached the goal or not
return _position == goal;
}Source: gamedev.stackexchange.com
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