17- Enemy Health System | Health Bar, Taking Damage & Death | 2D Platformer Tutorial

Welcome to Lesson 17 of the 2D Platformer Game Development series! 🎮 In this video, we're diving into one of the most essential components of any game with enemies: the enemy health system. You’ll learn how to make your enemies feel alive (and destroyable) by giving them health, visual feedback, and satisfying death effects. 💀❤️‍🩹

This tutorial will walk you through the full process of setting up a health bar, implementing damage logic, and handling enemy death animations and behavior in Unity. Whether you're building a boss battle or adding common enemies to your levels, this system will give them life—until the player takes it away. 😎⚔️
🔍 What You’ll Learn in This Lesson:

❤️ Adding Health to Enemies
We start by creating a health variable for each enemy and determining how much damage they can take. We’ll use a simple float or integer value to represent health, and set up methods to increase or decrease it during gameplay.

📉 Enemy Health Bar UI
Then we’ll add a health bar above each enemy’s head that updates in real time as they take damage. You’ll learn how to:

Use Unity UI elements like sliders or image fill bars

Attach them to the enemy

Have them follow the enemy’s position on screen

Make the bars disappear when full or after death for a polished look

⚔️ Taking Damage from Player Attacks
We’ll show how to set up collision or trigger events so that when the player hits the enemy (via melee, projectile, or any damage source), the enemy’s health decreases accordingly. You’ll also:

Set damage amounts

Play a “hurt” animation

💀 Enemy Death Logic
When the enemy’s health hits zero, we’ll trigger a death sequence. This includes:

Playing a death animation 🎞️

Disabling their AI or movement scripts 🧠✖️

Removing the enemy from the scene (either with Destroy() or object pooling)

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