439 lines
16 KiB
C#
439 lines
16 KiB
C#
using System;
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using System.Text;
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using ColdMint.scripts.damage;
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using ColdMint.scripts.utils;
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using ColdMint.scripts.weapon;
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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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private PackedScene? _floatLabelPackedScene;
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private Control? _floatLabel;
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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 = new[] { 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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private RayCast2D? _platformDetectionRayCast2D;
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private const float PromptTextDistance = 50;
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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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//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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//物品被扔出后多长时间恢复与地面和平台的碰撞（单位：秒）
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private readonly double _itemCollisionRecoveryTime = 0.045f;
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public override void _Ready()
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{
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base._Ready();
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CharacterName = TranslationServerUtils.Translate("default_player_name");
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_floatLabelPackedScene = GD.Load<PackedScene>("res://prefab/ui/FloatLabel.tscn");
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_parabola = GetNode<Line2D>("Parabola");
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_platformDetectionRayCast2D = GetNode<RayCast2D>("PlatformDetectionRayCast");
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UpdateOperationTip();
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var healthBarUi = GameSceneNodeHolder.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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}
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/// <summary>
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/// <para>Update operation prompt</para>
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/// <para>更新操作提示</para>
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/// </summary>
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private void UpdateOperationTip()
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{
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var operationTipLabel = GameSceneNodeHolder.OperationTipLabel;
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if (operationTipLabel == null)
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{
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return;
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}
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var operationTipBuilder = new StringBuilder();
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operationTipBuilder.Append("[color=");
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operationTipBuilder.Append(Config.OperationTipActionColor);
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operationTipBuilder.Append(']');
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operationTipBuilder.Append(TranslationServerUtils.Translate(InputMap.ActionGetEvents("ui_left")[0].AsText()));
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operationTipBuilder.Append("[/color]");
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operationTipBuilder.Append(TranslationServerUtils.Translate("move_left"));
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operationTipBuilder.Append(' ');
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operationTipBuilder.Append("[color=");
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operationTipBuilder.Append(Config.OperationTipActionColor);
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operationTipBuilder.Append(']');
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operationTipBuilder.Append(TranslationServerUtils.Translate(InputMap.ActionGetEvents("ui_right")[0].AsText()));
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operationTipBuilder.Append("[/color]");
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operationTipBuilder.Append(TranslationServerUtils.Translate("move_right"));
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operationTipBuilder.Append(' ');
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operationTipBuilder.Append("[color=");
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operationTipBuilder.Append(Config.OperationTipActionColor);
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operationTipBuilder.Append(']');
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operationTipBuilder.Append(TranslationServerUtils.Translate(InputMap.ActionGetEvents("ui_up")[0].AsText()));
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operationTipBuilder.Append("[/color]");
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operationTipBuilder.Append(TranslationServerUtils.Translate("jump"));
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if (_collidingWithPlatform)
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{
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operationTipBuilder.Append(' ');
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operationTipBuilder.Append("[color=");
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operationTipBuilder.Append(Config.OperationTipActionColor);
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operationTipBuilder.Append(']');
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operationTipBuilder.Append(TranslationServerUtils.Translate(InputMap.ActionGetEvents("ui_down")[0].AsText()));
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operationTipBuilder.Append("[/color]");
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operationTipBuilder.Append(TranslationServerUtils.Translate("jump_down"));
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}
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//If the PickingRangeBodiesList is not null and the length is greater than 0
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//如果PickingRangeBodiesList不是null，且长度大于0
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if (PickingRangeBodiesList is { Count: > 0 })
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{
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operationTipBuilder.Append(' ');
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operationTipBuilder.Append("[color=");
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operationTipBuilder.Append(Config.OperationTipActionColor);
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operationTipBuilder.Append(']');
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operationTipBuilder.Append(
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TranslationServerUtils.Translate(InputMap.ActionGetEvents("pick_up")[0].AsText()));
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operationTipBuilder.Append("[/color]");
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operationTipBuilder.Append(TranslationServerUtils.Translate("pick_up"));
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operationTipLabel.Text = operationTipBuilder.ToString();
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}
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if (CurrentItem != null)
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{
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operationTipBuilder.Append(' ');
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operationTipBuilder.Append("[color=");
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operationTipBuilder.Append(Config.OperationTipActionColor);
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operationTipBuilder.Append(']');
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operationTipBuilder.Append(TranslationServerUtils.Translate(InputMap.ActionGetEvents("throw")[0].AsText()));
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operationTipBuilder.Append("[/color]");
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operationTipBuilder.Append(TranslationServerUtils.Translate("throw"));
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if (CurrentItem is WeaponTemplate weaponTemplate)
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{
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operationTipBuilder.Append(TranslationServerUtils.Translate(weaponTemplate.Name));
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//提示武器攻击
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operationTipBuilder.Append(' ');
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operationTipBuilder.Append("[color=");
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operationTipBuilder.Append(Config.OperationTipActionColor);
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operationTipBuilder.Append(']');
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operationTipBuilder.Append(
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TranslationServerUtils.Translate(InputMap.ActionGetEvents("use_item")[0].AsText()));
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operationTipBuilder.Append("[/color]");
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operationTipBuilder.Append(TranslationServerUtils.Translate("use_item"));
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operationTipBuilder.Append(TranslationServerUtils.Translate(weaponTemplate.Name));
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}
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}
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operationTipLabel.Text = operationTipBuilder.ToString();
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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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//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 (_platformDetectionRayCast2D != null && _platformDetectionRayCast2D.IsColliding() != _collidingWithPlatform)
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{
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//When the state changes, update the action hint
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//当状态改变时，更新操作提示
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_collidingWithPlatform = _platformDetectionRayCast2D.IsColliding();
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UpdateOperationTip();
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}
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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;
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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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UseItem(GetGlobalMousePosition());
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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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if (_floatLabel != null)
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{
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_floatLabel.QueueFree();
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_floatLabel = null;
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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 (CurrentItem == 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 = new[] { Vector2.Zero };
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}
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CurrentItem.Reparent(GameSceneNodeHolder.WeaponContainer);
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switch (CurrentItem)
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{
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case WeaponTemplate weaponTemplate:
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{
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var timer = new Timer();
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weaponTemplate.AddChild(timer);
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timer.WaitTime = _itemCollisionRecoveryTime;
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timer.OneShot = true;
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timer.Timeout += () =>
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{
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//We cannot immediately resume the physical collision when the weapon is discharged, which will cause the weapon to collide with the ground and platform earlier, preventing the weapon from flying.
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//仍出武器时，我们不能立即恢复物理碰撞，立即恢复会导致武器更早的与地面和平台碰撞，阻止武器的飞行。
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weaponTemplate.EnableContactInjury = true;
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weaponTemplate.SetCollisionMaskValue(Config.LayerNumber.Ground, true);
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weaponTemplate.SetCollisionMaskValue(Config.LayerNumber.Platform, true);
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timer.QueueFree();
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};
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timer.Start();
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weaponTemplate.Sleeping = false;
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weaponTemplate.LinearVelocity = Vector2.Zero;
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break;
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}
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}
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//We apply force to objects.
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//我们给物品施加力。
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switch (CurrentItem)
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{
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case CharacterBody2D characterBody2D:
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characterBody2D.Velocity = GetThrowVelocity();
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break;
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case RigidBody2D rigidBody2D:
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rigidBody2D.LinearVelocity = GetThrowVelocity();
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break;
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}
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CurrentItem = null;
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var hotBar = GameSceneNodeHolder.HotBar;
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hotBar?.RemoveItemFromItemSlotBySelectIndex(1);
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}
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}
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protected override void WhenUpdateCurrentItem(Node2D? currentItem)
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{
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UpdateOperationTip();
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}
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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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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 WeaponTemplate weapon)
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{
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weapon.Flip(FacingLeft);
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}
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}
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protected override void EnterThePickingRangeBody(Node node)
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{
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base.EnterThePickingRangeBody(node);
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if (CurrentItem == node)
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{
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//If the node entering the pick range is the node held by the player, then return.
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//如果说进入拾捡范围的节点是玩家所持有的节点，那么返回。
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return;
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}
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if (node is not Node2D node2D)
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{
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return;
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}
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if (_floatLabelPackedScene != null)
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{
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//If there is a scene of floating text, then we generate floating text.
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//如果有悬浮文本的场景，那么我们生成悬浮文本。
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_floatLabel?.QueueFree();
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_floatLabel = (Control)_floatLabelPackedScene.Instantiate();
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var rotationDegreesNode2D = node2D.RotationDegrees;
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var rotationDegreesNode2DAbs = Math.Abs(rotationDegreesNode2D);
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_floatLabel.Position = rotationDegreesNode2DAbs > 90
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? new Vector2(0, PromptTextDistance)
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: new Vector2(0, -PromptTextDistance);
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_floatLabel.RotationDegrees = 0 - rotationDegreesNode2D;
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var label = _floatLabel.GetNode<Label>("Label");
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if (node is WeaponTemplate weapon)
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{
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var stringBuilder = new StringBuilder();
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if (weapon.Owner is CharacterTemplate characterTemplate)
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{
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stringBuilder.Append(characterTemplate.ReadOnlyCharacterName);
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stringBuilder.Append(TranslationServerUtils.Translate("de"));
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}
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stringBuilder.Append(TranslationServerUtils.Translate(weapon.Name));
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label.Text = stringBuilder.ToString();
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}
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node.AddChild(_floatLabel);
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}
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UpdateOperationTip();
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}
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protected override void ExitThePickingRangeBody(Node node)
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{
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base.ExitThePickingRangeBody(node);
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if (node is not Node2D)
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{
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return;
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}
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if (_floatLabel != null)
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{
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_floatLabel.QueueFree();
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_floatLabel = null;
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}
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UpdateOperationTip();
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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 = GameSceneNodeHolder.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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} |