GodotComponentTest/entities/Tree.cs

using Godot;
using System;
using System.Diagnostics;
using GodotComponentTest.components;
using GodotComponentTest.entities;

public class Tree : StaticBody, IInteractionInterface
{
    [Export] public float ChopDuration = 2;
    public bool IsMouseOver;
    
    private MeshInstance _geometry;
    private AnimationPlayer _animationPlayer;
    private float _health = 100;
    private bool _isBeingChopped;
    
    private InteractionComponent _interactionComponent;
    public InteractionComponent InteractionComponent
    {
        get => _interactionComponent;
        set => _interactionComponent = value;
    }
    
    [Signal]
    delegate void EntityClicked(Entity entity);
    
    // Called when the node enters the scene tree for the first time.
    public override void _Ready()
    {
        _geometry = GetNode<MeshInstance>("Geometry");
        Debug.Assert(_geometry != null);
        _animationPlayer = GetNode<AnimationPlayer>("AnimationPlayer");
        Debug.Assert(_animationPlayer != null);
        _animationPlayer.CurrentAnimation = "Idle";
        _animationPlayer.Play();

        Connect("input_event", this, nameof(OnAreaInputEvent));
        Connect("mouse_entered", this, nameof(OnAreaMouseEntered));
        Connect("mouse_exited", this, nameof(OnAreaMouseExited));
    }


    public override void _Process(float delta)
    {
        base._Process(delta);

        if (_isBeingChopped)
        {
            _health = Math.Max(0, _health - delta * 100 / ChopDuration);
        }

        if (_health == 0)
        {
            QueueFree();
        }
    }

    public void OnAreaInputEvent(Node camera, InputEvent inputEvent, Vector3 position, Vector3 normal,
        int shapeIndex)
    {
        if (IsMouseOver && inputEvent is InputEventMouseButton)
        {
            InputEventMouseButton mouseButtonEvent = (InputEventMouseButton)inputEvent;
            if (mouseButtonEvent.ButtonIndex == 1 && mouseButtonEvent.Pressed)
            {
                EmitSignal("EntityClicked", this);
            }
        }
    }


    public void OnAreaMouseEntered()
    {
        IsMouseOver = true;
        SpatialMaterial overrideMaterial = new SpatialMaterial();
        overrideMaterial.AlbedoColor = new Color(1, 0, 0);
        _geometry.MaterialOverride = overrideMaterial;
    }


    public void OnAreaMouseExited()
    {
        IsMouseOver = false;
        _geometry.MaterialOverride = null;
    }


    public void OnInteractionStart()
    {
        GD.Print("Starting tree animationplayer");
        _animationPlayer.CurrentAnimation = "TreeShake";
        _animationPlayer.Seek(0);
        _animationPlayer.Play();
        _isBeingChopped = true;
    }

    public void OnInteractionEnd()
    {
        _animationPlayer.CurrentAnimation = "Idle";
        _animationPlayer.Seek(0);
        _animationPlayer.Stop();
        _isBeingChopped = false;
    }
}