352 lines
11 KiB
C#
352 lines
11 KiB
C#
using System.Threading.Tasks;
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using ColdMint.scripts.damage;
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using ColdMint.scripts.deathInfo;
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using ColdMint.scripts.debug;
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using ColdMint.scripts.inventory;
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using ColdMint.scripts.map.events;
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using ColdMint.scripts.utils;
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using ColdMint.scripts.pickable;
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using Godot;
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namespace ColdMint.scripts.character;
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/// <summary>
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/// <para>玩家角色</para>
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/// </summary>
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public partial class Player : CharacterTemplate
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{
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//Empty object projectile
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//空的物品抛射线
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private readonly Vector2[] _emptyVector2Array = [Vector2.Zero];
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//抛物线
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private Line2D? _parabola;
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//用于检测玩家是否站在平台上的射线
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[Export] private RayCast2D[]? _platformDetectionRayCast2DList;
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//抛出物品的飞行速度
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private float _throwingVelocity = Config.CellSize * 13;
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//射线是否与平台碰撞
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private bool _collidingWithPlatform;
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private bool _canUseItem;
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//How long does it take for the character to recover from a collision with the platform after jumping off the platform (in seconds)
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//角色从平台上跳下后，多少时间后恢复与平台的碰撞（单位：秒）
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private double _platformCollisionRecoveryTime = 0.2f;
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public override void _Ready()
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{
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base._Ready();
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if (_platformDetectionRayCast2DList == null || _platformDetectionRayCast2DList.Length == 0)
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{
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LogCat.LogError("no_platform_detection_raycast_found");
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return;
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}
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CharacterName = TranslationServerUtils.Translate("default_player_name");
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LogCat.LogWithFormat("player_spawn_debug", LogCat.LogLabel.Default, ReadOnlyCharacterName,
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GlobalPosition);
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_parabola = GetNode<Line2D>("Parabola");
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var healthBarUi = GameSceneDepend.HealthBarUi;
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if (healthBarUi != null)
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{
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healthBarUi.MaxHp = MaxHp;
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healthBarUi.CurrentHp = CurrentHp;
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}
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//Mount the camera.
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//挂载相机。
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var mainCameraPackedScene = ResourceLoader.Load<PackedScene>("res://prefab/MainCamera.tscn");
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var camera2D = NodeUtils.InstantiatePackedScene<Camera2D>(mainCameraPackedScene);
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if (camera2D != null)
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{
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NodeUtils.CallDeferredAddChild(this, camera2D);
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}
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}
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protected override void WhenBindItemContainer(IItemContainer? itemContainer)
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{
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if (itemContainer == null)
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{
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return;
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}
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//Subscribe to events when the item container is bound to the player.
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//在物品容器与玩家绑定时订阅事件。
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itemContainer.SelectedItemChangeEvent += SelectedItemChangeEvent;
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}
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public override void _ExitTree()
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{
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base._ExitTree();
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if (ProtectedItemContainer != null)
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{
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//Unsubscribe to events when this object is destroyed.
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//此节点被销毁时，取消订阅事件。
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ProtectedItemContainer.SelectedItemChangeEvent -= SelectedItemChangeEvent;
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}
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}
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private void SelectedItemChangeEvent(SelectedItemChangeEvent selectedItemChangeEvent)
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{
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var item = selectedItemChangeEvent.NewItem;
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if (item is Node2D node2D)
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{
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CurrentItem = node2D;
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}
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else
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{
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CurrentItem = null;
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}
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}
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public override void _MouseEnter()
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{
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}
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public override void _MouseExit()
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{
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}
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/// <summary>
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/// <para>UpdateCollidingWithPlatform</para>
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/// <para>更新与平台发生碰撞的状态</para>
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/// </summary>
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private void UpdateCollidingWithPlatform()
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{
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//When the collision state between the platform detection ray and the platform changes
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//在平台检测射线与平台碰撞状态改变时
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if (_platformDetectionRayCast2DList is not { Length: > 0 }) return;
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foreach (var rayCast2D in _platformDetectionRayCast2DList)
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{
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if (!rayCast2D.IsColliding()) continue;
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_collidingWithPlatform = true;
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return;
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}
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_collidingWithPlatform = false;
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}
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protected override void HookPhysicsProcess(ref Vector2 velocity, double delta)
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{
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UpdateCollidingWithPlatform();
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//If the character is on the ground, give an upward velocity when the jump button is pressed
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//如果角色正在地面上，按下跳跃键时，给予一个向上的速度
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if (Input.IsActionJustPressed("ui_up") && IsOnFloor())
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velocity.Y = JumpVelocity;
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//Moving left and right
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//左右移动
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var axis = Input.GetAxis("ui_left", "ui_right");
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velocity.X = axis * Speed * Config.CellSize * ProtectedSpeedScale;
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if (Input.IsActionJustPressed("use_item"))
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{
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_canUseItem = !GameSceneDepend.IsMouseOverFurnitureGui && !GameSceneDepend.IsMouseOverItemSlotNode;
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}
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//Use items
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//使用物品
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if (Input.IsActionPressed("use_item"))
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{
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if (_canUseItem)
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{
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UseItem(GetGlobalMousePosition());
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}
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}
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//Pick up an item
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//捡起物品
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if (Input.IsActionJustPressed("pick_up"))
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{
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var pickAbleItem = FindTheNearestItem();
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var success = PickItem(pickAbleItem);
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if (success)
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{
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if (pickAbleItem != null)
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{
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PickingRangeBodiesList?.Remove(pickAbleItem);
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}
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}
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}
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if (Input.IsActionJustPressed("ui_down"))
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{
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if (_collidingWithPlatform)
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{
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//When the character stands on the platform and presses the ui_down key, we cancel the collision between the character and the platform
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//当角色站在平台上按下 ui_down 键时，我们取消角色与平台的碰撞
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var timer = new Timer();
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AddChild(timer);
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timer.WaitTime = _platformCollisionRecoveryTime;
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timer.OneShot = true;
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timer.Start();
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timer.Timeout += () =>
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{
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SetCollisionMaskValue(Config.LayerNumber.Platform, true);
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timer.QueueFree();
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};
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SetCollisionMaskValue(Config.LayerNumber.Platform, false);
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}
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}
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//Display a parabola when an item is thrown
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//抛出物品时，显示抛物线
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if (Input.IsActionPressed("throw"))
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{
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if (_parabola == null)
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{
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return;
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}
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if (ItemMarker2D == null)
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{
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//Cannot get the marked location of the item, then do not draw a line
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//无法获取物品的标记位置，那么不绘制线
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return;
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}
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_parabola.Points = CurrentItem == null
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? _emptyVector2Array
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: ParabolicUtils.ComputeParabolic(ItemMarker2D.Position, GetThrowVelocity(), Gravity, 0.1f);
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}
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//When you raise your hand, throw the object
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//抬起手时，抛出物品
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if (Input.IsActionJustReleased("throw"))
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{
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if (ItemContainer == null)
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{
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return;
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}
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if (_parabola != null)
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{
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_parabola.Points = [Vector2.Zero];
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}
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ThrowItem(ItemContainer.GetSelectIndex(), 1, GetThrowVelocity());
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CurrentItem = null;
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}
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}
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/// <summary>
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/// <para>当玩家手动抛出物品时，施加到物品上的速度值</para>
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/// </summary>
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/// <returns></returns>
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private Vector2 GetThrowVelocity()
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{
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//We take the mouse position, normalize it, and then multiply it by the distance the player can throw
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//我们拿到鼠标的位置，将其归一化处理，然后乘以玩家可扔出的距离
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return GetLocalMousePosition().Normalized() * _throwingVelocity;
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}
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public override void _Process(double delta)
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{
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if (!Visible)
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{
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return;
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}
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AimTheCurrentItemAtAPoint(GetGlobalMousePosition());
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var itemMarker2DPosition = Vector2.Zero;
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if (ItemMarker2D != null)
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{
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itemMarker2DPosition = ItemMarker2D.Position;
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}
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var axis = Input.GetAxis("ui_left", "ui_right");
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switch (axis)
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{
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case -1:
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//Minus 1, we move to the left
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//-1，向左移动
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FacingLeft = true;
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if (ItemMarker2D != null)
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{
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itemMarker2DPosition.X = -ReadOnlyItemMarkerOriginalX;
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}
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Flip();
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break;
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case 1:
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//1, move to the right
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//1，向右移动
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FacingLeft = false;
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if (ItemMarker2D != null)
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{
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itemMarker2DPosition.X = ReadOnlyItemMarkerOriginalX;
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}
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Flip();
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break;
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}
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if (ItemMarker2D != null)
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{
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ItemMarker2D.Position = itemMarker2DPosition;
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}
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}
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protected override void Flip()
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{
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base.Flip();
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//If there is a weapon, flip it too
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//如果有武器的话，也要翻转
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if (CurrentItem is PickAbleTemplate pickAbleTemplate)
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{
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pickAbleTemplate.Flip(FacingLeft);
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}
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}
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public override void Revive(int newHp)
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{
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base.Revive(newHp);
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var healthBarUi = GameSceneDepend.HealthBarUi;
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if (healthBarUi != null)
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{
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//The purpose of setting Hp to the current Hp is to cause the life bar to refresh.
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//将Hp设置为当前Hp的目的是，使生命条刷新。
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healthBarUi.CurrentHp = CurrentHp;
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}
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ProcessMode = ProcessModeEnum.Inherit;
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Show();
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}
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/// <summary>
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/// <para>When the player dies</para>
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/// <para>当玩家死亡的时候</para>
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/// </summary>
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/// <param name="damageTemplate"></param>
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protected override async Task OnDie(DamageTemplate damageTemplate)
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{
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Hide();
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ProcessMode = ProcessModeEnum.Disabled;
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if (EventBus.GameOverEvent == null)
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{
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return;
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}
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var gameOverEvent = new GameOverEvent();
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if (damageTemplate.Attacker != null)
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{
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gameOverEvent.DeathInfo = await DeathInfoGenerator.GenerateDeathInfo(this, damageTemplate.Attacker);
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}
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EventBus.GameOverEvent.Invoke(gameOverEvent);
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}
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protected override void OnHit(DamageTemplate damageTemplate)
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{
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base.OnHit(damageTemplate);
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var healthBarUi = GameSceneDepend.HealthBarUi;
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if (healthBarUi != null)
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{
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healthBarUi.CurrentHp = CurrentHp;
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}
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}
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} |