Project

Tower Defense Lab

Small tower defense sandbox focused on clean wave systems and targeting logic.

Unity C# Pathfinding Scriptable Waves

Code

Overview

Solo project fully developed by me, including art and programming. A compact tower defense prototype where the player protects a village by placing normal and long-range archers, buying upgrades in a simple shop, and earning coins by defeating enemies. I implemented core systems such as enemy spawning, tower targeting, and the in-game shop.

Features

• Wave definitions stored as scriptable assets for quick tuning.
• Simple but readable targeting logic for single-target and splash towers.
• Enemy pathing through waypoints with support for future navmesh swap.
• Lightweight UI for tower upgrades and range previews.

My contribution

• Implemented the full wave system and enemy spawning logic.
• Designed targeting priorities and data layout for towers.
• Focused on making the codebase easy to read and extend for future tests.

Code snippets

Tower targeting and shooting

public class Tower : MonoBehaviour
{
    [SerializeField] private float range = 5f;
    [SerializeField] private float fireRate = 1f;
    [SerializeField] private GameObject projectilePrefab;
    private float _cooldown;

    void Update()
    {
        _cooldown -= Time.deltaTime;
        var target = FindTarget();
        if (target != null && _cooldown <= 0f)
        {
            Shoot(target);
            _cooldown = 1f / fireRate;
        }
    }

    private Enemy FindTarget()
    {
        Enemy best = null;
        float bestDist = float.MaxValue;
        foreach (var e in FindObjectsOfType<Enemy>())
        {
            var d = Vector3.Distance(transform.position, e.transform.position);
            if (d <= range && d < bestDist)
            {
                best = e;
                bestDist = d;
            }
        }
        return best;
    }

    private void Shoot(Enemy target)
    {
        var proj = Instantiate(projectilePrefab, transform.position, Quaternion.identity);
        proj.GetComponent<Projectile>().Initialize(target.transform);
    }
}

Repository

Open on GitHub