1 files changed, 163 insertions, 0 deletions
diff --git a/GameCode/BuildingManager.cs b/GameCode/BuildingManager.cs
new file mode 100644
index 0000000..4ace1ac
--- /dev/null
+++ b/GameCode/BuildingManager.cs
@@ -0,0 +1,163 @@
+using UnityEngine;
+
+public class BuildingManager : MonoBehaviour
+{
+	public static BuildingManager instance;
+
+	[SerializeField]
+	private GameObject buildingGhost;
+
+	private GameObject currentGhost;
+
+	[SerializeField]
+	private GameObject placementFXObject;
+
+	[SerializeField]
+	public GameObject levelUpFX;
+
+	[SerializeField]
+	private LayerMask buildableMask;
+
+	private bool buildSpotAvailable;
+
+	private GameObject thingToBuild;
+
+	private int buildingCost;
+
+	private int priceIncrease;
+
+	private TowerType tType;
+
+	public bool buildMode { get; private set; }
+
+	private void Awake()
+	{
+		instance = this;
+	}
+
+	private void Start()
+	{
+		buildMode = false;
+	}
+
+	private void FixedUpdate()
+	{
+		if (buildMode)
+		{
+			buildSpotAvailable = SamplePoint();
+		}
+	}
+
+	private void Update()
+	{
+		if (!buildMode)
+		{
+			return;
+		}
+		if (Input.GetMouseButtonDown(0) && BuildingCheck())
+		{
+			ResourceManager.instance.Spend(buildingCost);
+			DamageTracker.instance.AddCost(tType, buildingCost);
+			Build();
+			if (!Input.GetKey(KeyCode.LeftShift))
+			{
+				ExitBuildMode();
+			}
+			else
+			{
+				buildingCost += priceIncrease;
+			}
+		}
+		if (Input.GetMouseButtonDown(1) || Input.GetKeyDown(KeyCode.Escape))
+		{
+			ExitBuildMode();
+		}
+	}
+
+	public void EnterBuildMode(GameObject objectToBuild, int cost, int _priceIncrease, TowerType type)
+	{
+		buildMode = true;
+		thingToBuild = objectToBuild;
+		buildingCost = cost;
+		priceIncrease = _priceIncrease;
+		tType = type;
+	}
+
+	private void ExitBuildMode()
+	{
+		HideGhost();
+		buildMode = false;
+	}
+
+	private void Build()
+	{
+		GameObject gameObject = Object.Instantiate(thingToBuild, currentGhost.transform.position, Quaternion.identity);
+		gameObject.GetComponent<IBuildable>()?.SetStats();
+		Object.Instantiate(placementFXObject, gameObject.transform.position + Vector3.up * 0.333f, Quaternion.identity);
+		buildSpotAvailable = SamplePoint();
+	}
+
+	private bool BuildingCheck()
+	{
+		if (!PauseMenu.instance.paused && buildSpotAvailable && ResourceManager.instance.CheckMoney(buildingCost))
+		{
+			return true;
+		}
+		if (!ResourceManager.instance.CheckMoney(buildingCost) && !PauseMenu.instance.paused && buildSpotAvailable)
+		{
+			DamageNumber component = ObjectPool.instance.SpawnObject(ObjectPool.ObjectType.DamageNumber, currentGhost.transform.position + Vector3.up, Quaternion.identity).GetComponent<DamageNumber>();
+			component.SetText("Not enough gold", "Grey", 1f);
+			component.SetHoldTime(0.25f);
+		}
+		return false;
+	}
+
+	private bool SamplePoint()
+	{
+		if (Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition), out var hitInfo, 2000f, buildableMask, QueryTriggerInteraction.Ignore))
+		{
+			if (hitInfo.collider.gameObject.layer != LayerMask.NameToLayer("Grass"))
+			{
+				HideGhost();
+				return false;
+			}
+			Vector3 vector = new Vector3(Mathf.Round(hitInfo.point.x), Mathf.Round(3f * hitInfo.point.y) / 3f, Mathf.Round(hitInfo.point.z));
+			if (Vector3.SqrMagnitude(hitInfo.point - vector) < 0.25f)
+			{
+				string text = "";
+				if (vector.y > 0.34f)
+				{
+					text = "+" + (Mathf.RoundToInt(vector.y * 3f) - 1);
+				}
+				DisplayGhost(vector, text);
+				return true;
+			}
+			HideGhost();
+			return false;
+		}
+		HideGhost();
+		return false;
+	}
+
+	private void DisplayGhost(Vector3 pos, string text)
+	{
+		if (currentGhost == null)
+		{
+			currentGhost = Object.Instantiate(buildingGhost, pos, Quaternion.identity);
+		}
+		else
+		{
+			currentGhost.SetActive(value: true);
+			currentGhost.transform.position = pos;
+		}
+		currentGhost.GetComponent<BuildingGhost>().SetText(text);
+	}
+
+	private void HideGhost()
+	{
+		if (currentGhost != null)
+		{
+			currentGhost.SetActive(value: false);
+		}
+	}
+}