private void Update()
{
if (!MapData.CanSpawnZombies)
{
return;
}
if (Mouse.current.leftButton.wasPressedThisFrame)
{
var startMousePos = Mouse.current.position.ReadValue();
_startRay = _camera.ScreenPointToRay(startMousePos);
if (Physics.Raycast(_startRay, out var hitInfo, 500f, _rayLayerMask))
{
startWorldPos = hitInfo.point;
_canSpawn = true;
}
}
if (Mouse.current.leftButton.isPressed && _canSpawn)
{
var endMousePos = Mouse.current.position.ReadValue();
var endRay = _camera.ScreenPointToRay(endMousePos);
if (Physics.Raycast(endRay, out var hitInfo, 500f, _rayLayerMask))
{
endWorldPos = hitInfo.point;
var startGridPos = PathfindingManager.NodeFromWorldPoint(startWorldPos).gridPosition;
var endGridPos = PathfindingManager.NodeFromWorldPoint(endWorldPos).gridPosition;
if (startGridPos.x > endGridPos.x)
{
var temp = startGridPos.x;
startGridPos.x = endGridPos.x;
endGridPos.x = temp;
}
if (startGridPos.y > endGridPos.y)
{
var temp = startGridPos.y;
startGridPos.y = endGridPos.y;
endGridPos.y = temp;
}
_spawnPreviews.ForEach(preview => preview.hasJustSpawned = false);
_currentCost = 0;
for (var x = startGridPos.x; x <= endGridPos.x; x++)
{
for (var y = startGridPos.y; y <= endGridPos.y; y++)
{
if (!MapData.Map[x, y].canWalk)
{
continue;
}
if (_currentCost > MapData.FingerAmount - MapData.ZombieToSpawn.totalCost || MapData.FingerAmount == 0)
{
break;
}
var evalPreview = _spawnPreviews.FirstOrDefault(preview => preview.gridPosition == MapData.Map[x, y].gridPosition);
if (evalPreview != null)
{
evalPreview.hasJustSpawned = true;
_currentCost += _zombieToSpawn.spawnCost;
continue;
}
var objToInstantiate = Instantiate(zombiePreview,
MapData.Map[x, y].worldPosition,
Quaternion.identity);
objToInstantiate.IsError = !MapData.Map[x, y].canSpawn;
objToInstantiate.gridPosition = MapData.Map[x, y].gridPosition;
_spawnPreviews.Add(objToInstantiate);
_currentCost += _zombieToSpawn.spawnCost;
}
}
foreach (var preview in _spawnPreviews.ToArray())
{
//if it hasn't spawned this fixed frame, it's not part of the preview and can be destroyed
if (!preview.hasJustSpawned)
{
preview.gameObject.Destroy();
_spawnPreviews.Remove(preview);
}
}
//todo:fix flaoting away text on resolutions other than 1920x1080
costText.gameObject.SetActive(true);
costText.GetComponent <RectTransform>().anchoredPosition = endMousePos * Screen.width / Screen.height;
costText.text = _currentCost.RoundToInt().ToString();
}
if (Mouse.current.rightButton.wasPressedThisFrame)
{
_canSpawn = false;
foreach (var preview in _spawnPreviews)
{
preview.gameObject.Destroy();
}
_spawnPreviews.Clear();
costText.gameObject.SetActive(false);
}
}
if (Mouse.current.leftButton.wasReleasedThisFrame && _canSpawn)
{
_spawnPreviews.RemoveAll(preview => preview == null);
var zombieBehaviours = new List <ZombieBehaviour>();
foreach (var preview in _spawnPreviews.ToArray())
{
var spawnedZombie = Instantiate(_zombieToSpawn, MapData.Map[preview.gridPosition.x, preview.gridPosition.y].worldPosition + Vector3.up * 0.5f, Quaternion.identity);
if (preview.IsError)
{
_currentCost -= _zombieToSpawn.spawnCost;
}
spawnedZombie.gameObject.SetActive(true);
zombieBehaviours.Add(spawnedZombie);
preview.gameObject.Destroy();
}
MapData.ZombieList.AddRange(zombieBehaviours);
_spawnPreviews.Clear();
MapData.FingerAmount -= _currentCost.RoundToInt();
costText.gameObject.SetActive(false);
}
}
