temporary files rename

Assets/BasedScripts/UnitScripts/Attacks/Projectiles/Arrow.cs

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+using UnityEngine;
+
+public class Arrow : ProjectileHandler
+{
+    [SerializeField] private float baseDamage;
+    [SerializeField] private float baseKnockback;
+    
+    void OnCollisionEnter(Collision collision)
+    {
+        // Can be optimized with tags, but it add dependance beetween teams
+        if (collision.gameObject.TryGetComponent<AbstractUnit>(out AbstractUnit unit))
+        {
+            if (unit is MinecraftUnit && unit.IsTeamA != FromTeamA) // No friendly fire
+            {
+                MinecraftUnit minecraftUnit = unit as MinecraftUnit;
+                Vector3 knockback = RigidBody.linearVelocity * baseKnockback;
+                minecraftUnit.StartCoroutine(minecraftUnit.MovementHandler.TakeImpulse(knockback));
+            }
+            unit.TakeDamage(baseDamage);
+            _minecraftUnitOrigin.Capacity.AddMana(baseDamage);
+        }
+        
+        Destroy(this.gameObject);
+    }
+}

Assets/BasedScripts/UnitScripts/Attacks/Projectiles/Arrow.cs.meta

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+fileFormatVersion: 2
+guid: 36e1a3cc9e04b444cadcfe2b444d0abc

Assets/BasedScripts/UnitScripts/Attacks/Projectiles/AttackProjectile.cs

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+using UnityEngine;
+
+public class AttackProjectile : AttackHandler
+{
+    [SerializeField] private GameObject arrowPrefab;
+    [SerializeField] private float arrowBaseSpeed;
+    [SerializeField] private Transform spawnPos;
+    [SerializeField] private bool directShot;
+
+    
+    public override bool Attack()
+    {
+        // If no target (target is dead an destroyed)
+        if (!_minecraftUnit.MovementHandler.TargetUnit)
+        {
+            if (_minecraftUnit.IsTeamA)
+            {
+                if (GlobalsVariable.AliveUnitsTeamB.Count == 0) return false;
+            }
+            else
+            {
+                if (GlobalsVariable.AliveUnitsTeamA.Count == 0) return false;
+            }
+        }
+        float launchAngle = findLaunchAngle();
+        //print(launchAngle);
+        // If target not reachable
+        if (launchAngle < 0) return false;
+        
+        GameObject arrow = Instantiate(arrowPrefab, spawnPos.position, spawnPos.rotation);
+        ProjectileHandler projectileHandler = arrow.GetComponent<ProjectileHandler>();
+        // In target <-> launcher + transform.up basis
+        Vector2 localLaunchVector = arrowBaseSpeed * new Vector2(Mathf.Cos(launchAngle), Mathf.Sin(launchAngle));
+        // Transform it in global basis
+        AbstractUnit targetUnit = _minecraftUnit.MovementHandler.TargetUnit;
+        Vector3 diffVector = Vector3.ProjectOnPlane(targetUnit.transform.position - spawnPos.position, Vector3.up);
+        
+        Vector3 launchVectorNormalized = (localLaunchVector.x * diffVector.normalized + localLaunchVector.y * Vector3.up).normalized;
+        projectileHandler.LaunchProjectile(launchVectorNormalized * arrowBaseSpeed, _minecraftUnit.IsTeamA, _minecraftUnit);
+        
+        return true;
+    }
+
+    private float findLaunchAngle()
+    {
+        // Source : https://en.wikipedia.org/wiki/Projectile_motion#Angle_%CE%B8_required_to_hit_coordinate_(x,_y)
+        
+        AbstractUnit targetUnit = _minecraftUnit.MovementHandler.TargetUnit;
+        if (targetUnit == null) return -1f;
+        Vector3 diffVector = targetUnit.transform.position - spawnPos.position;
+        Vector3 projectOnPlane = Vector3.ProjectOnPlane(diffVector, Vector3.up);
+        
+        float x = Vector3.ProjectOnPlane(projectOnPlane, Vector3.up).magnitude;
+        float y = diffVector.y;
+        float g = Physics.gravity.magnitude;
+        float v = arrowBaseSpeed;
+        float v_sqr = v * v;
+        //print("x : " + x);
+        
+        float inside_sqrt_root = v_sqr*v_sqr - g*(g*x*x + 2*y*v_sqr);
+        if (inside_sqrt_root < 0.0f) return -1f; // Can't reach target
+        
+        // directShot is the smallest angle, undirectShot shot is the biggest angle
+        float numerator = directShot ? v_sqr - Mathf.Sqrt(inside_sqrt_root) : v_sqr + Mathf.Sqrt(inside_sqrt_root);
+        float inside_arctan = numerator / (g * x);
+        return Mathf.Atan(inside_arctan);
+    }
+
+    
+}

Assets/BasedScripts/UnitScripts/Attacks/Projectiles/AttackProjectile.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 6fa6d262ce5ee0761b28bd18f6bcd247

Assets/BasedScripts/UnitScripts/Attacks/Projectiles/HealthPotion.cs

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+using UnityEngine;
+using System.Collections;
+
+
+public class HealthPotion : ProjectileHandler
+{
+    [SerializeField] private float healthAdd;
+    [SerializeField] private SphereCollider healthPotionEffectArea;
+    [SerializeField] private GameObject explodeMesh;
+    [SerializeField] private float exploseMeshTime = 0.5f;
+    
+    void OnCollisionEnter(Collision collision)
+    {
+        Collider[] targets = Physics.OverlapSphere(transform.position, healthPotionEffectArea.radius, healthPotionEffectArea.includeLayers);
+        foreach (Collider target in targets)
+        {
+            if (!target.CompareTag("Unit")) continue;
+            // GetComponent is expensive in performance, optimize here if it's slow
+            AbstractUnit targetUnit = target.GetComponent<AbstractUnit>();
+            
+            // No EnemyHealing 
+            if (targetUnit.IsTeamA != FromTeamA) continue;
+            
+            targetUnit.Heal(healthAdd);
+            _minecraftUnitOrigin.Capacity.AddMana(healthAdd*0.1f);
+        }
+        CoroutineManager.Instance.StartCoroutine(ExplodeVisual());
+        Destroy(gameObject);
+    }
+    
+    private IEnumerator ExplodeVisual()
+    {
+        GameObject explosion = Instantiate(explodeMesh, transform.position, Quaternion.identity);
+        explosion.transform.parent = null;
+        yield return new WaitForSeconds(exploseMeshTime);
+        Destroy(explosion);
+    }
+}

Assets/BasedScripts/UnitScripts/Attacks/Projectiles/HealthPotion.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: fd66c851299240c02a3082ade5b6295d

Assets/BasedScripts/UnitScripts/Attacks/Projectiles/ProjectileHandler.cs

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+using Unity.VisualScripting;
+using UnityEngine;
+
+/// <summary>
+/// Should be attached to the Arrow, not the skeleton
+/// </summary>
+[RequireComponent(typeof(Rigidbody))]
+public class ProjectileHandler : MonoBehaviour
+{
+    [SerializeField] protected float _lifeSpan = 8.0f;
+    protected Rigidbody RigidBody;
+    protected bool FromTeamA;
+    protected MinecraftUnit _minecraftUnitOrigin;
+
+    void Awake()
+    {
+        RigidBody = GetComponent<Rigidbody>();
+    }
+
+    void Start()
+    {
+        // Destroy after _lifeSpan, in all case
+        Destroy(this.gameObject, _lifeSpan);
+    }
+
+    void Update()
+    {
+        // Align with speed
+        if (RigidBody.linearVelocity.magnitude >= 1f) transform.forward = RigidBody.linearVelocity.normalized;
+    }
+
+    public void LaunchProjectile(Vector3 baseSpeed, bool fromTeamA, MinecraftUnit minecraftUnit)
+    {
+        RigidBody.linearVelocity = baseSpeed;
+        FromTeamA = fromTeamA;
+        _minecraftUnitOrigin = minecraftUnit;
+    }
+    
+    
+}

Assets/BasedScripts/UnitScripts/Attacks/Projectiles/ProjectileHandler.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 9aa6ff4d0673f53389daff2a5ba3c45f