Godot INPUT Shift +“Key” 只播放“Key”

Question

我在 godot 工作，这是我的第一个项目，我决定制作一个钢琴游戏，就像那些虚拟钢琴游戏一样，你可以在键盘上弹奏，我一切正常，除了当我想演奏黑色音符时，它的转变+白色音符是它的父音符，例如我有 c2 作为 1 并且我想播放 c#2 它应该是 shift + 1 但它播放 c2

extends Node

# Define the note keymap for left and right hands
var left_hand = ['Z', 'S', 'X', 'D', 'C', 'V', 'G', 'B', 'H', 'N', 'J', 'M']
var right_hand = ['R', '5', 'T', '6', 'Y', 'U', '8', 'I', '9', 'O', '0', 'P']

# Define the piano notes
var piano_notes = ['C2', 'D2', 'E2', 'F2', 'G2','A2', 'B2', 'C3', 'D3', 'E3', 'F3', 'G3','A3', 'B3', 'C4', 
                   'D4', 'E4', 'F4', 'G4','A4', 'B4', 'C5', 'D5', 'E5', 'F5', 'G5','A5', 'B5', 'C6', 'D6', 'E6', 'F6', 'F6#', 'G6', 'G6#',
                   'A6', 'B6', 'C7']

# Define white and black notes separately
var white_notes = ['C2', 'D2', 'E2', 'F2', 'G2',
                   'A2', 'B2', 'C3', 'D3', 'E3', 'F3', 'G3',
                   'A3', 'B3', 'C4', 'D4', 'E4', 'F4', 'G4',
                   'A4', 'B4', 'C5', 'D5', 'E5', 'F5', 'G5',
                   'A5', 'B5', 'C6', 'D6', 'E6', 'F6', 'G6',
                   'A6', 'B6', 'C7']

var black_notes = ['C#2', 'D#2', 'F#2', 'G#2',
                   'A#2', 'C#3', 'D#3', 'F#3', 'G#3',
                   'A#3', 'C#4', 'D#4', 'F#4', 'G#4',
                   'A#4', 'C#5', 'D#5', 'F#5', 'G#5',
                   'A#5', 'C#6', 'D#6', 'F#6', 'G#6',
                   'A#6', 'C#7']

# Combine white and black notes
var all_notes = white_notes + black_notes

# Dictionary to keep track of whether a key is pressed
var key_pressed = {}

func _ready():
    # Initialize key_pressed dictionary
    for note in piano_notes:
        key_pressed[note] = false
    
    # Connect input event
    set_process_input(true)

func _process(delta):
    # Check if a keybind is pressed for each note
    for note in piano_notes:
        var action = "play_note_" + note
        if Input.is_action_pressed(action) and !key_pressed[note]:
            play_note(note)
            key_pressed[note] = true
        elif !Input.is_action_pressed(action) and key_pressed[note]:
            key_pressed[note] = false

func play_note(note):
    # Load the audio file
    var audio_stream = load("res://notes/" + note + ".wav")
    if audio_stream:
        # Create an AudioStreamPlayer node
        var audio_player = AudioStreamPlayer.new()
        # Assign the audio stream to the player
        audio_player.stream = audio_stream
        # Add the player to the scene
        add_child(audio_player)
        # Play the audio
        audio_player.play()

我去为你们的所有代码添加了注释（或者至少要求聊天 gpt 解释所有内容并添加注释） 我的调试日志中还收到 4000 个错误：

E 0:00:02:0041   Piano.gd:45 @ _process(): The InputMap action "play_note_F6#" doesn't exist. Did you mean "play_note_F6"?
  <C++ Error>    Condition "!InputMap::get_singleton()->has_action(p_action)" is true. Returning: false
  <C++ Source>   core/input/input.cpp:288 @ is_action_pressed()
  <Stack Trace>  Piano.gd:45 @ _process()

每个键都这样

我尝试添加一个布尔变量来检查是否按下了shift，然后播放输入名称+“#”+注释，但这创建了一个双哈希标签

Answer 1

由于您仅在流程功能中检查

piano_notes

，因此仅检查您的主要注释。要检查是否按下了黑色音符操作，您需要使用

all_nodes

字典。

但是您应该已经注意到，如果除了预期输入之外还按下了其他按钮，则操作检查也是正确的。因此，假设如果按下 W 键，将会触发 play_note_C2 操作。那么如果用户按下 Shift+W，Input.is_action_pressed(“play_note_C2”) 也将为 true。

因此，如果您使用 all_nodes 字典，C2 和 C#2 将在输入处触发。

如果您仍然想通过定义的操作检查所有内容，则必须扩展白键的检查。因此：确保 Shift 未被按下：

func _process(delta):
    # Check if a keybind is pressed for each white note
    for note in white_notes:
        var action = "play_note_" + note
        if Input.is_action_pressed(action) and !key_pressed[note] and !Input.is_key_pressed(KEY_SHIFT):
            play_note(note)
            key_pressed[note] = true
        elif !Input.is_action_pressed(action) and key_pressed[note]:
            key_pressed[note] = false
    #Now checking black notes:
    for note in black_notes:
        var action = "play_note_" + note
        if Input.is_action_pressed(action) and !key_pressed[note]:
            play_note(note)
            key_pressed[note] = true
        elif !Input.is_action_pressed(action) and key_pressed[note]:
            key_pressed[note] = false

key_pressed 字典也必须正确初始化（因为它只是用 Piano_notes 初始化，它只保存你的白音符）：

func _ready():
    # Initialize key_pressed dictionary
    for note in all_notes:
        key_pressed[note] = false
    
    # Connect input event
    set_process_input(true)