[GodotDL C# D4]

新增内容：
钻石/皇冠动画

Line.cs

using Godot;

public partial class Line : CharacterBody3D
{
	[Export]
	public Node Scene;
	[Export]
	public float Speed = 10f;
	[Export]
	public bool fly = false;
	[Export]
	public bool ground = false;
	[Export]
	public bool turn = false;
	[Export]
	public bool alive = true;
	[Export]
	public bool start = false;
	[Export]
	public MeshInstance3D tail;
	[Export]
	public CpuParticles3D FallEff;
	[Export]
	public CpuParticles3D DieEff;
	[Export]
	public AudioStreamPlayer song;
	[Export]
	public AudioStreamPlayer die;
	[Export]
	public MeshInstance3D LastTail;
	/*Soon[Export]
	public int DiamondCount = 0;
	
	System.Action AddDiamond = () => {
		DiamondCount++;
	 };

	public override void _Ready()
	{
		Connect("process", Callable.From(AddDiamond));
	}*/

	public override void _PhysicsProcess(double delta)
	{
		Vector3 velocity = Velocity;
		if (Input.IsActionJustPressed("ui_cancel"))
		{
			ReloadScene();
		}
		if (alive)
		{
			if (!IsOnFloor() && !fly)
			{
				ground = false;
				velocity += GetGravity() * (float)delta;
			}
			if (IsOnFloor())
			{
				if (!ground)
				{
					FallEff.Emitting = true;
					ground = true;
				}
				if (Input.IsActionJustPressed("ui_accept"))
				{
					//MakeTail();
					if (!start)
					{
						start = true;
						song.Play();
					}
					turn = !turn;
				}
			}
			if (start)
			{
				if (turn)
				{
					//tail.Scale = new Vector3(tail.Scale.x, tail.Scale.y, -tail.Scale.z)
					velocity.X = 0;
					velocity.Z = Speed;
				}
				else
				{
					velocity.Z = 0;
					velocity.X = Speed;
				}
			}
			if (IsOnWall())
			{
				velocity = new Vector3(0, 0, 0);
				alive = false;
				die.Play();
				DieEff.Emitting = true;
				song.Stop();
			}
		}
		Velocity = velocity;
		MoveAndSlide();
	}
	public void ReloadScene()
	{
		SceneTree sceneTree = GetTree();
		sceneTree.ReloadCurrentScene();
	}
	public void MakeTail()
	{
		Node Tail = tail.Duplicate();
		tail.Position = Position;
		Scene.AddChild(Tail);
	}
}

Diamond.cs

using Godot;

public partial class Diamond : Area3D
{
	[Export]
	public CpuParticles3D effect;
	[Export]
	public MeshInstance3D mesh;
	public override void _PhysicsProcess(double delta)
	{
		this.RotateY((float)(-delta));
	}

	private void _on_body_entered(Node3D body)
	{
		if (body is Line)
		{
			//EmitSignal("add_diamond");
			mesh.Visible = false;
			effect.Emitting = true;
		}
	}
}

Crown.cs

using Godot;

public partial class Crown : Area3D
{
	[Export]
	public CpuParticles3D effect;
	[Export]
	public MeshInstance3D mesh;
	/*[Export]
	public Node3D sprite;*/
	public override void _PhysicsProcess(double delta)
	{
		this.RotateY((float)(-delta));
	}

	private void _on_body_entered(Node3D body)
	{
		if (body is Line)
		{
			//EmitSignal("add_crown");
			mesh.Visible = false;
			effect.Emitting = true;
		}
	}
}

弱弱问一句：在C#中怎么使用Connect，以实现注释中部分（2024.7.8停更）
目前找到的参考：

https://docs.godotengine.org/zh-cn/4.x/getting_started/step_by_step/signals.html

https://forum.godotengine.org/t/connecting-signals-and-c/53682/4

https://docs.godotengine.org/zh-cn/4.x/tutorials/scripting/c_sharp/c_sharp_signals.html

https://blog.csdn.net/weixin_44499065/article/details/133023475