// Update is called once per frame
protected override void Update()
{
base.Update();
//player moves on tile per time
if (!Initialized)
{
Debug.Log("Initialize player first");
return;
}
//read player's input
var inputDirection = MovementDirection;
if (Input.GetKey(KeyCode.UpArrow))
{
inputDirection = MovementDirections.Up;
}
else if (Input.GetKey(KeyCode.DownArrow))
{
inputDirection = MovementDirections.Down;
}
else if (Input.GetKey(KeyCode.LeftArrow))
{
inputDirection = MovementDirections.Left;
}
else if (Input.GetKey(KeyCode.RightArrow))
{
inputDirection = MovementDirections.Right;
}
//it means the entity has stopped
if (NavEntity.CanMove && NavEntity.ReachedDestination)
{
GameEvents.Instance.OnPlayerWalkedTile(
new GameEvents.PlayerWalkedTileEventArgs()
{
indexX = NavEntity.LastIndexes.Item1,
indexY = NavEntity.LastIndexes.Item2
});
bool changedDirection = false;
if (inputDirection != MovementDirection)
{
int xIndexShiftNewDirection = 0;
int yIndexShiftNewDirection = 0;
//calc the direction on grid coordinates for new input
switch (inputDirection)
{
case MovementDirections.Up:
xIndexShiftNewDirection = 0;
yIndexShiftNewDirection = 1;
break;
case MovementDirections.Down:
xIndexShiftNewDirection = 0;
yIndexShiftNewDirection = -1;
break;
case MovementDirections.Left:
xIndexShiftNewDirection = -1;
yIndexShiftNewDirection = 0;
break;
case MovementDirections.Right:
xIndexShiftNewDirection = 1;
yIndexShiftNewDirection = 0;
break;
}
//try finding a walkable node in the new direction
Pacman.NavNode nodeInDirection =
GameController.Instance.LevelManager.NavGraph.GetNode(
(int)Math.Round(NavEntity.Position.Item1) + xIndexShiftNewDirection,
(int)Math.Round(NavEntity.Position.Item2) + yIndexShiftNewDirection);
//found a node, change player's path and direction
if (nodeInDirection != null && nodeInDirection.NodeType != Pacman.NodeType.NonWalkable)
{
changedDirection = true;
MovementDirection = inputDirection;
NavEntity.SetPath(
new System.Collections.Generic.List <Pacman.NavNode>()
{
nodeInDirection
});
}
}
//try to move in same direction
if (!changedDirection)
{
int xIndexShiftOldDirection = 0;
int yIndexShiftOldDirection = 0;
//calc the direction on grid coordinates for new input
switch (MovementDirection)
{
case MovementDirections.Up:
xIndexShiftOldDirection = 0;
yIndexShiftOldDirection = 1;
break;
case MovementDirections.Down:
xIndexShiftOldDirection = 0;
yIndexShiftOldDirection = -1;
break;
case MovementDirections.Left:
xIndexShiftOldDirection = -1;
yIndexShiftOldDirection = 0;
break;
case MovementDirections.Right:
xIndexShiftOldDirection = 1;
yIndexShiftOldDirection = 0;
break;
}
//try finding a walkable node in the old direction
Pacman.NavNode nodeInDirection =
GameController.Instance.LevelManager.NavGraph.GetNode(
(int)Math.Round(NavEntity.Position.Item1) + xIndexShiftOldDirection,
(int)Math.Round(NavEntity.Position.Item2) + yIndexShiftOldDirection);
//found a node, change player's target
if (nodeInDirection != null && nodeInDirection.NodeType != Pacman.NodeType.NonWalkable)
{
NavEntity.SetPath(
new System.Collections.Generic.List <Pacman.NavNode>()
{
nodeInDirection
});
}
}
}
if (MovementDirection == MovementDirections.Left)
{
transform.localScale = new Vector3(-1, 1, 1);
}
else if (MovementDirection == MovementDirections.Right)
{
transform.localScale = new Vector3(1, 1, 1);
}
}
/// <summary>
/// Create the graph and fills it with the tilemap information
/// Only "walkable" nodes are considered
/// </summary>
private void MountLevel()
{
Collectables = new List <Collectable>();
//iterates through all tiles and create nodes in the graph
//and elements int he level based on the tile's poisition
//in the grid and type. Walls are not considered for the graph
foreach (var tilePosition in _tilemap.cellBounds.allPositionsWithin)
{
var tile = _tilemap.GetTile(tilePosition);
if (tile != null)
{
bool clearColor = false;
Pacman.NavNode navNode = new Pacman.NavNode();
if (tile.name.Equals("pelletTile"))
{
clearColor = true;
navNode.NodeType = Pacman.NodeType.Normal;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
var pellet = Instantiate(_pelletPrefab).GetComponent <Pellet>();
pellet.PelletType = PelletTypes.Small;
pellet.transform.position = _tilemap.GetCellCenterWorld(tilePosition);
pellet.Index = new Vector2(tilePosition.x, tilePosition.y);
Collectables.Add(pellet);
}
else if (tile.name.Equals("bigPelletTile"))
{
clearColor = true;
navNode.NodeType = Pacman.NodeType.PowerUp;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
var bigPellet = Instantiate(_bigPelletPrefab).GetComponent <Pellet>();
bigPellet.PelletType = PelletTypes.Big;
bigPellet.transform.position = _tilemap.GetCellCenterWorld(tilePosition);
bigPellet.Index = new Vector2(tilePosition.x, tilePosition.y);
Collectables.Add(bigPellet);
}
else if (tile.name.Equals("emptyTile"))
{
clearColor = true;
navNode.NodeType = Pacman.NodeType.Normal;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
}
else if (tile.name.Equals("bonusPointTile"))
{
clearColor = true;
navNode.NodeType = Pacman.NodeType.BonusPoint;
NavGraph.BonusPointNode = navNode;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
var bonusPellet = Instantiate(_bonusPelletPrefab).GetComponent <Pellet>();
bonusPellet.PelletType = PelletTypes.Bonus;
bonusPellet.transform.position = _tilemap.GetCellCenterWorld(tilePosition);
bonusPellet.Index = new Vector2(tilePosition.x, tilePosition.y);
Collectables.Add(bonusPellet);
}
else if (tile.name.Equals("playerTile"))
{
clearColor = true;
navNode.NodeType = Pacman.NodeType.PlayerSpawn;
NavGraph.PlayerSpawnNode = navNode;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
}
else if (tile.name.Equals("enemy1"))
{
clearColor = true;
navNode.NodeType = Pacman.NodeType.EnemyPosition1;
NavGraph.EnemyPosition1Node = navNode;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
}
else if (tile.name.Equals("enemy2"))
{
clearColor = true;
navNode.NodeType = Pacman.NodeType.EnemyPosition2;
NavGraph.EnemyPosition2Node = navNode;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
}
else if (tile.name.Equals("enemy3"))
{
clearColor = true;
navNode.NodeType = Pacman.NodeType.EnemyPosition3;
NavGraph.EnemyPosition3Node = navNode;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
}
else if (tile.name.Equals("enemy4"))
{
clearColor = true;
navNode.NodeType = Pacman.NodeType.EnemyPosition4;
NavGraph.EnemyPosition4Node = navNode;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
}
else if (tile.name.Equals("warperDown"))
{
//clearColor = true;
navNode.NodeType = Pacman.NodeType.WarperDown;
NavGraph.WarperDown = navNode;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
}
else if (tile.name.Equals("warperUp"))
{
//clearColor = true;
navNode.NodeType = Pacman.NodeType.WarperUp;
NavGraph.WarperUp = navNode;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
}
else if (tile.name.Equals("warperLeft"))
{
//clearColor = true;
navNode.NodeType = Pacman.NodeType.WarperLeft;
NavGraph.WarperLeft = navNode;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
}
else if (tile.name.Equals("warperRight"))
{
//clearColor = true;
navNode.NodeType = Pacman.NodeType.WarperRight;
NavGraph.WarperRight = navNode;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
}
else if (tile.name.Equals("nonPlayableTile"))
{
clearColor = true;
navNode.NodeType = Pacman.NodeType.NonWalkable;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
}
else if (tile.name.Equals("EnemyExitTile"))
{
clearColor = true;
navNode.NodeType = Pacman.NodeType.Normal;
NavGraph.EnemyExitTargetNode = navNode;
navNode.Indexes = new System.Tuple <int, int>(tilePosition.x, tilePosition.y);
NavGraph.AddNavNode(navNode);
}
if (clearColor)
{
_tilemap.SetTileFlags(tilePosition, TileFlags.None);
_tilemap.SetColor(tilePosition, new Color(0, 0, 0, 0));
}
}
}
//link warp nodes
NavGraph.WarperLeft.Left = NavGraph.WarperRight;
NavGraph.WarperRight.Right = NavGraph.WarperLeft;
NavGraph.WarperUp.Up = NavGraph.WarperDown;
NavGraph.WarperDown.Down = NavGraph.WarperUp;
}