complete project reorganization

scenes/player_controller/components/weapon/WeaponSystem.cs

@@ -0,0 +1,196 @@
+using System;
+using Godot;
+using GodotStateCharts;
+using Movementtests.interfaces;
+using Movementtests.systems.damage;
+
+namespace Movementtests.systems;
+
+[GlobalClass, Icon("res://assets/ui/IconGodotNode/node_3D/icon_sword.png")]
+public partial class WeaponSystem : RigidBody3D, IDamageDealer
+{
+    [Signal]
+    public delegate void WeaponThrownEventHandler();
+    
+    [Signal]
+    public delegate void WeaponRetrievedEventHandler();
+    
+    [Export]
+    public RDamage RDamage { get; set; }
+    [Export(PropertyHint.Range, "0,100,1,or_greater")]
+    public float ThrowForce { get; set; } = 1f;
+    [Export(PropertyHint.Range, "0,0.2,0.01,or_greater")]
+    public float StraightThrowDuration { get; set; } = 0.1f;
+    
+    private StateChart       _weaponState;
+    public StateChartState  InHandState;
+    public StateChartState  FlyingState;
+    public StateChartState  PlantedState;
+    
+    private ShapeCast3D _dashCast3D;
+    
+    private Transform3D _startTransform;
+    private Vector3 _startMeshRotation;
+
+    private Vector3 _throwDirection;
+    public Vector3 PlantLocation { get; set; }
+    public Vector3 PlantNormal { get; set; }
+    public Node PlantObject { get; set; }
+    
+    public MeshInstance3D WeaponLocationIndicator { get; set; }
+    public StandardMaterial3D WeaponLocationIndicatorMaterial { get; set; }
+    public MeshInstance3D WeaponMesh { get; set; }
+
+    public void Init()
+    {
+        _weaponState = StateChart.Of(GetNode("StateChart"));
+        InHandState = StateChartState.Of(GetNode("StateChart/Root/InHand"));
+        FlyingState = StateChartState.Of(GetNode("StateChart/Root/Flying"));
+        PlantedState = StateChartState.Of(GetNode("StateChart/Root/Planted"));
+
+        WeaponLocationIndicator = GetNode<MeshInstance3D>("WeaponLocationIndicator");
+        WeaponLocationIndicator.Visible = false;
+        WeaponLocationIndicatorMaterial = WeaponLocationIndicator.GetActiveMaterial(0) as StandardMaterial3D;
+        
+        WeaponMesh = GetNode<MeshInstance3D>("Weapon");
+        _startMeshRotation = WeaponMesh.Rotation;
+
+        _startTransform = Transform;
+        Freeze = true;
+        Visible = false;
+
+        BodyEntered += OnThrownWeaponReachesGround;
+
+        InHandState.StateExited += WeaponLeft;
+        InHandState.StateEntered += WeaponBack;
+    }
+
+    public void WeaponLeft()
+    {
+        Visible = true;
+        // WeaponLocationIndicator.Visible = true;
+        EmitSignalWeaponThrown();
+    }
+
+    public void WeaponBack()
+    {
+        Visible = false;
+        // WeaponLocationIndicator.Visible = false;
+        EmitSignalWeaponRetrieved();
+    }
+
+    public void PlaceWeaponForTutorial(Vector3 location)
+    {
+        _weaponState.SendEvent("plant");
+        Freeze = true;
+        GlobalPosition = location;
+        PlantLocation = location;
+    }
+
+    public void ThrowWeapon(Vector3 end, bool hasHit, Vector3 collisionLocation, Vector3 collisionNormal, Node collidedObject)
+    {
+        _weaponState.SendEvent("throw");
+
+        // WeaponLocationIndicatorMaterial.StencilColor = new Color(1f, 1f, 1f);
+        
+        _throwDirection = (end - GlobalPosition).Normalized();
+        PlantLocation = collisionLocation;
+        PlantNormal = collisionNormal;
+        LookAt(end);
+        
+        
+        var tween = GetTree().CreateTween();
+        tween.SetParallel(true);
+        tween.TweenProperty(this, "global_position", end, StraightThrowDuration);
+        if (hasHit)
+        {
+            PlantObject = collidedObject;
+            tween.Finished += PlantWeaponInWall;
+        }
+        else
+            tween.Finished += ThrowWeaponOnCurve;
+    }
+
+    public void PlantInEnemy(Node3D enemy)
+    {
+        GetTree().GetRoot().CallDeferred(Node.MethodName.RemoveChild, this);
+        enemy.CallDeferred(Node.MethodName.AddChild, this);
+
+        if (enemy is IDamageable damageable)
+        {
+            damageable.TakeDamage(new DamageRecord(GlobalPosition, RDamage));
+        }
+    }
+
+    public void RethrowWeapon()
+    {
+        _weaponState.SendEvent("throw");
+        _throwDirection = Vector3.Up;
+        ThrowWeaponOnCurve();
+    }
+
+    public void ThrowWeaponOnCurve()
+    {
+        Freeze = false;
+        ApplyImpulse(_throwDirection * ThrowForce);
+    }
+
+    public void PlantWeaponInWall()
+    {
+        _weaponState.SendEvent("plant");
+
+        Freeze = true;
+        WeaponMesh.Rotation = _startMeshRotation;
+        
+        // WeaponLocationIndicatorMaterial.StencilColor = new Color(1f, 0.2f, 0.2f);
+        if (PlantObject is Node3D node)
+        {
+            PlantInEnemy(node);
+        }
+        CallDeferred(Node3D.MethodName.SetGlobalPosition, PlantLocation);
+        CallDeferred(Node3D.MethodName.LookAt, GlobalTransform.Origin + PlantNormal, Vector3.Up, true);
+    }
+
+    public void OnThrownWeaponReachesGround(Node other)
+    {
+        PlantObject = other;
+        PlantWeaponInWall();
+    }
+
+    public void ResetWeapon()
+    {
+        _weaponState.SendEvent("recover");
+        Transform = _startTransform;
+        Freeze = true;
+        Visible = false;
+    }
+    
+    public override void _IntegrateForces(PhysicsDirectBodyState3D state)
+    {
+        base._IntegrateForces(state);
+        
+        if (!Freeze && state.GetContactCount() > 0)
+        {
+            PlantLocation = state.GetContactLocalPosition(0);
+            PlantNormal = state.GetContactLocalNormal(0);
+        }
+    }
+
+    public override void _Process(double delta)
+    {
+        if (!FlyingState.Active) return;
+        
+        WeaponMesh.Rotation = new Vector3(WeaponMesh.Rotation.X, WeaponMesh.Rotation.Y + (float) delta * 100, WeaponMesh.Rotation.Z);
+        //LookAt(GlobalTransform.Origin + LinearVelocity.Normalized(), Vector3.Up, false);
+    }
+
+    public bool IsPlantedUnderPlatform()
+    {
+        return PlantedState.Active && GlobalRotation.X > 1 && Math.Abs(GlobalRotation.Y) > 1;
+    }
+
+    public bool IsPlantedInWall()
+    {
+        return PlantedState.Active && Math.Abs(GlobalRotation.X) + Math.Abs(GlobalRotation.Z) < 0.3;
+    }
+}