add all mechanics

Assets/Scripts/Entities/Enemy.cs

@@ -18,12 +18,14 @@ public class Enemy : Entity
 	[SerializeField] private float variance;
 	public Coroutine currentMovementRoutine;
 	[Header("boss stuff")]
-	[SerializeField] private bool isBossEnemy;
+	public bool isBossEnemy;
 	[SerializeField] private bool hasStartedDialogue;
 	[Header("Attack")] 
 	[SerializeField] private float attackCooldown;
 	private float currentAttackCooldown;
-	[SerializeField] private DialogueScript thisBossDialogue; 
+	[SerializeField] private DialogueScript thisBossDialogue;
+	[Header("Animation")] 
+	public Animator animator;
 	public event Action onTakeDamage; 
 
 	private void Start()
@@ -100,7 +102,10 @@ public class Enemy : Entity
 		WaveManager.instance.UpdateKills();
 		if (isBossEnemy)
 		{
-			WaveManager.instance.bossUI.SetActive(false);
+			DialogueManager.instance.battleUIAnimator.SetTrigger(DialogueManager.instance.nobossTrigger);
+			WaveManager.instance.musicSource.clip = WaveManager.instance.musicLoop;
+			WaveManager.instance.musicSource.volume = WaveManager.instance.musicVolume;
+			WaveManager.instance.musicSource.Play();
 		}
 	}
 
@@ -129,7 +134,10 @@ public class Enemy : Entity
 				if (isBossEnemy && !hasStartedDialogue)
 				{
 					hasStartedDialogue = true;
-					DialogueManager.instance.StartDialogue(thisBossDialogue); //the worst code ever
+					if (thisBossDialogue)
+					{
+						DialogueManager.instance.StartDialogue(thisBossDialogue); //the worst code ever
+					}
 					isStalled = true;
 				}
 			}

Assets/Scripts/Entities/Player.cs

@@ -1,18 +1,27 @@
 using System.Collections.Generic;
 using TMPro;
 using UnityEngine;
+using UnityEngine.UI;
 
 public class Player : Entity
 {
     [Header("Invulnerability")]
     [SerializeField] private float invulnerabilityLength;
     private float currentInvulnerabilityTime;
+    [SerializeField] private float invincibilityBlinkLength;
+    private float currentInvincibilityBlink;
+    [SerializeField] private SpriteRenderer[] playerSprites;
+    [SerializeField] private Color invincibilityColor;
     [Header("UI")]
-    [SerializeField] private TextMeshProUGUI livesText;
+    [SerializeField] private Image[] healthBar;
+    [SerializeField] private Sprite heart;
+    [SerializeField] private Sprite depletedHeart;
 
     [Header("SFX")]
     [SerializeField] private AudioClip hurtSound;
     [SerializeField] private float hurtVolume = 1f;
+    [SerializeField] private AudioClip gameOverSound;
+    [SerializeField] private float gameOverVolume = 1f;
     private void Update()
     {
         if (!isStalled)
@@ -30,8 +39,24 @@ public class Player : Entity
         if (currentInvulnerabilityTime > 0)
         {
             currentInvulnerabilityTime -= Time.deltaTime;
+            if (currentInvincibilityBlink > 0)
+            {
+                currentInvincibilityBlink -= Time.deltaTime;
+                foreach (SpriteRenderer sprite in playerSprites)
+                {
+                    sprite.color = Color.Lerp(invincibilityColor, Color.white, 1f - currentInvincibilityBlink);
+                }
+            }
+            else if (currentInvincibilityBlink <= 0)
+            {
+                currentInvincibilityBlink = invincibilityBlinkLength;
+            }
             if (currentInvulnerabilityTime <= 0)
             {
+                foreach (SpriteRenderer sprite in playerSprites)
+                {
+                    sprite.color = Color.white;
+                }
                 invulnerable = false;
             }
         }
@@ -53,9 +78,20 @@ public class Player : Entity
     protected override void OnDeath()
     {
         GameManager.instance.LoseGame();
+        WaveManager.instance.audioSource.PlayOneShot(gameOverSound, gameOverVolume);
     }
     private void UpdateLivesUI()
     {
-        livesText.text = $"Lives: {health}/{maxHealth}";
+        for (int i = 0; i < healthBar.Length; i++)
+        {
+            if (i < health)
+            {
+                healthBar[i].sprite = heart;
+            }
+            else
+            {
+                healthBar[i].sprite = depletedHeart;
+            }
+        }
     }
 }

Assets/Scripts/Entities/Prismriver.cs

@@ -0,0 +1,17 @@
+using UnityEngine;
+
+public class Prismriver : Enemy
+{
+	public override void TakeDamage(int damage)
+	{
+		if (!invulnerable)
+		{
+			WaveManager.instance.prismHP -= damage;
+			WaveManager.instance.UpdateBossUI();
+		}
+		if (WaveManager.instance.prismHP <= 0)
+		{
+			OnDeath();
+		}
+	}
+}

Assets/Scripts/Entities/Prismriver.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 806a8fd558ae195dea2036e9d77338b4