private void FixedUpdate()
{
//Perform raycast
Ray camRay = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast(camRay, out hit, 1000f, hitLayers))
{
//check if the grid is hit
IPlacementArea placement = hit.collider.GetComponent <IPlacementArea>();
//get grid point
if (placement != null)
{
//snap position of tower to the grid element
transform.position = placement.Snap(hit.point, new IntVector2(1, 1));
}
}
}
public void FixedUpdate()
{
if (Input.GetMouseButtonDown(0))
{
Ray camRay = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast(camRay, out hit, 1000f, hitLayers))
{
//Check if hitting grid
IPlacementArea placement = hit.collider.GetComponent <IPlacementArea>();
if (placement != null)
{
//Snap position tower to Grid element
transform.position = placement.Snap(hit.point, new IntVector2(1, 1));
}
}
}
}
private void Update()
{
// Check collisions with placement areas
var mouseRay = HelperObjects.CameraComponent.ScreenPointToRay(Input.mousePosition);
RaycastHit areaHit;
Physics.Raycast(mouseRay, out areaHit);
// Clear all potential tiles when leaving area
if (targetArea == null && !firstPlacement)
{
clearAllOldTiles();
}
if (areaHit.collider != null)
{
targetArea = areaHit.collider.GetComponent <IPlacementArea>();
if (targetArea != null)
{
// If first placement, instantly move and enable
if (firstPlacement)
{
firstPlacement = false;
transform.position = areaHit.point;
transform.localScale = Vector3.one;
return;
}
var snappedPosition = targetArea.Snap(areaHit.point, SizeOffset);
var snappedGridPosition = targetArea.WorldToGrid(areaHit.point, SizeOffset);
// Check if the ghost fits and isn't too close to the path
var fits = targetArea.Fits(snappedGridPosition, SizeOffset) == TowerFitStatus.Fits;
Collider[] collisions = Physics.OverlapSphere(areaHit.point, PathCollisionRadius);
var collidesWithPath = collisions.Any((c) => c.gameObject.layer == Constants.PATH_LAYER);
if (fits && !collidesWithPath)
{
transform.localScale = Vector3.one;
// Set new position and update placement tile state
if (snappedPosition != targetPosition)
{
clearOldTiles();
targetArea.Occupy(snappedGridPosition, SizeOffset, PlacementTileState.Potential);
targetPosition = snappedPosition;
}
}
}
}
// Move ghost
if (Vector3.SqrMagnitude(transform.position - targetPosition) > 0.01f)
{
transform.position = Vector3.SmoothDamp(transform.position, targetPosition, ref velocity, Dampening);
}
else
{
velocity = Vector3.zero;
}
// Build when clicked
if (Input.GetMouseButtonDown(0))
{
if (targetArea != null && !GameManager.IsUiBlocking)
{
BuildManager.I.ImplementMitigation(
targetArea,
targetArea.WorldToGrid(targetPosition, SizeOffset),
SizeOffset);
DestroyGhost();
}
}
else if (Input.GetMouseButtonDown(1) || Input.GetKeyDown(KeyCode.Escape))
{
clearAllOldTiles();
enabled = false;
DestroyGhost();
}
}