protected void PathFind(int x, int y)
{
// Pathfind to player
CellGrid cellGrid = LevelGen.CellGrid;
GridCell targetCell = cellGrid.Grid[x, y];
GridCell currentCell = cellGrid.GetCellAtPos(transform.position);
List <Vector3> path = cellGrid.FindPathWorld(targetCell, currentCell);
if (path.Count > 1)
{
// Move towards next cell
Vector3 dir = (path[1] - transform.position).normalized;
TurnTowards(dir);
Move(dir);
}
}
// Handle states and pathfinding
protected override void Update()
{
Debug.Log("Current state: " + currentState);
lineVertices = 0;
// Call base update method
base.Update();
// Get current node
GridCell currentCell = cellGrid.GetCellAtPos(transform.position);
PathNode oldNode = currentNode;
currentNode = cellGrid.GetPathfindingNode(currentCell);
// Common update stuff
// Do visibility testing
TestVisibility();
// Look for powerups and collect them if we can see them
Vector3 powerupPos;
if (currentState != State.ATTACK_PLAYER && currentState != State.LOOK_FOR_PLAYER)
{
if (CanSeeObjectOnLayer(FacingDirection, powerupLayer, "Powerup", out powerupPos))
{
Vector3 dir = (powerupPos - transform.position).normalized;
Move(dir);
TurnTowards(dir);
}
}
// Set default movement speed (later gets replaced in state handlers)
targetMovementSpeed = DEFAULT_MOVE_SPEED;
// Handle states
// Return early if the state handler returns false
switch (currentState)
{
case State.MAP_LEVEL:
if (!MapLevel())
{
return;
}
break;
case State.PATROL_LEVEL:
if (!PatrolLevel())
{
return;
}
break;
case State.ATTACK_PLAYER:
if (!AttackPlayer())
{
return;
}
break;
case State.LOOK_FOR_PLAYER:
if (!LookForPlayer())
{
return;
}
break;
default:
Debug.LogError("NonplayerCharacter: invalid state reached");
return;
}
// Follow path if there is one
if (currentPath != null)
{
// Remove current node from path
if (currentPath.Contains(currentNode))
{
currentPath.Remove(currentNode);
}
// Clear path if empty
if (currentPath.Count == 0)
{
currentPath = null;
}
else
{
// Get last node in path
PathNode lastNode = currentPath.Last();
// Walk the path if it's still not null
if (currentPath != null)
{
// Walk path if not empty
PathNode nextNode = currentPath[0];
// Get current state of cell
CellState state = cellStates[(int)nextNode.Position.x, (int)nextNode.Position.y];
// If blocked, clear the path
if (state == CellState.BLOCKED)
{
currentPath = null;
}
else
{
// Move towards next node in path
Vector3 dir = (nextNode.Position - currentNode.Position).normalized;
movementDir = dir;
Move(dir * targetMovementSpeed);
}
}
}
}
// Reset state just changed flag
stateJustChanged = false;
}