Made the shop upgrades work

Click a shop upgrade to change its respective value and start a new wave

Assets/ShopButton.cs

@@ -2,15 +2,41 @@ using UnityEngine;
 
 public class ShopButton : MonoBehaviour
 {
-    // Start is called once before the first execution of Update after the MonoBehaviour is created
-    void Start()
-    {
-        
-    }
-
-    // Update is called once per frame
-    void Update()
-    {
-        
-    }
+	public string upgrade;
+	void Start() {
+		GetComponent<UnityEngine.UI.Button>().onClick.AddListener(Upgrade);
+	}
+	void Upgrade() {
+		Teo player = GameObject.FindGameObjectWithTag("Player").GetComponent<Teo>();
+		GameState gameState = 
+			GameObject
+			.FindGameObjectWithTag("GameController")
+			.GetComponent<GameState>();
+		if (upgrade == "attackRange") {
+			player.swingRange += 1;
+		}
+		else if (upgrade == "attackDistance") {
+			player.swingDistance += 30;
+		}
+		else if (upgrade == "attackDamage") {
+			player.damageStrength += 5;
+		}
+		else if (upgrade == "attackCooldown") {
+			player.attackCooldownSeconds -= 0.5F;
+		}
+		else if (upgrade == "maxHealth") {
+			player.health += 20;
+			player.maxHealth += 20;
+		}
+		else 	if (upgrade == "movementSpeed") {
+			player.moveSpeed += 5;
+		}
+		else if (upgrade == "dashDistance") {
+			player.dashDistance += 1;
+		}
+		else if (upgrade == "dashCooldown") {
+			player.dashCooldownSeconds -= 0.5F;
+		}
+		gameState.NewWave();
+	}
 }