DrumMachine/app.py at main · BaseMax/DrumMachine · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
import os
import tkinter as tk
from tkinter import filedialog
import pygame
import random

class DrumMachine:
    def __init__(self, master, sounds_dir="sounds"):
        self.master = master
        self.instruments = []
        self.sample_files = {}

        self.master.title("Professional Drum Machine")
        pygame.mixer.init()

        # self.instruments = ["Kick", "Snare", "HiHat", "Clap"]
        # self.sample_files = {
        #     "Kick": "kick.wav",
        #     "Snare": "snare.wav",
        #     "HiHat": "hihat.wav",
        #     "Clap": "clap.wav"
        # }
        if not os.path.exists(sounds_dir):
            print(f"Directory '{sounds_dir}' not found.")
            return
        for file in os.listdir(sounds_dir):
            if file.endswith(".wav"):
                name, _ = os.path.splitext(file)
                self.instruments.append(name)
                self.sample_files[name] = os.path.join(sounds_dir, file)

        self.sounds = {}
        for inst in self.instruments:
            try:
                self.sounds[inst] = pygame.mixer.Sound(self.sample_files[inst])
            except Exception as e:
                print(f"Error loading {inst}: {e}")

        self.rows = len(self.instruments)
        self.cols = 16

        self.grid_vars = [
            [tk.IntVar() for _ in range(self.cols)] for _ in range(self.rows)
        ]

        self.buttons = [[None for _ in range(self.cols)] for _ in range(self.rows)]
        for r in range(self.rows):
            tk.Label(master, text=self.instruments[r],
                     font=("Helvetica", 12, "bold")).grid(row=r, column=0, padx=5, pady=5)
            for c in range(self.cols):
                btn = tk.Checkbutton(master, variable=self.grid_vars[r][c])
                btn.grid(row=r, column=c+1, padx=2, pady=2)
                self.buttons[r][c] = btn

        self.bpm = tk.IntVar(value=120)
        tk.Label(master, text="BPM", font=("Helvetica", 10)).grid(
            row=self.rows, column=0, padx=5, pady=5)
        self.bpm_slider = tk.Scale(master, from_=60, to=240, orient=tk.HORIZONTAL, variable=self.bpm)
        self.bpm_slider.grid(row=self.rows, column=1, columnspan=4, padx=5, pady=5)

        self.is_playing = False
        self.current_step = 0

        self.start_button = tk.Button(master, text="Start", command=self.start, width=10)
        self.start_button.grid(row=self.rows+1, column=0, padx=5, pady=5)

        self.stop_button = tk.Button(master, text="Stop", command=self.stop, width=10)
        self.stop_button.grid(row=self.rows+1, column=1, padx=5, pady=5)

        self.reset_button = tk.Button(master, text="Reset", command=self.reset, width=10)
        self.reset_button.grid(row=self.rows+1, column=2, padx=5, pady=5)

        self.random_button = tk.Button(master, text="Random", command=self.randomize, width=10)
        self.random_button.grid(row=self.rows+1, column=3, padx=5, pady=5)

        self.load_buttons = []
        for i, inst in enumerate(self.instruments):
            btn = tk.Button(master, text=f"Load {inst} Sample", command=lambda inst=inst: self.load_sample(inst))
            btn.grid(row=self.rows+2+i, column=0, columnspan=4, padx=5, pady=3)
            self.load_buttons.append(btn)

    def start(self):
        if not self.is_playing:
            self.is_playing = True
            self.run_sequence()

    def stop(self):
        self.is_playing = False
        self.reset_button_highlight()

    def reset(self):
        for r in range(self.rows):
            for c in range(self.cols):
                self.grid_vars[r][c].set(0)
        self.current_step = 0
        self.reset_button_highlight()

    def randomize(self):
        for r in range(self.rows):
            for c in range(self.cols):
                self.grid_vars[r][c].set(random.choice([0, 1]))

    def load_sample(self, instrument):
        file_path = filedialog.askopenfilename(filetypes=[("WAV Files", "*.wav")])
        if file_path:
            try:
                self.sounds[instrument] = pygame.mixer.Sound(file_path)
                self.sample_files[instrument] = file_path
            except Exception as e:
                print(f"Error loading sample for {instrument}: {e}")

    def reset_button_highlight(self):
        for r in range(self.rows):
            for c in range(self.cols):
                self.buttons[r][c].configure(bg="SystemButtonFace")

    def run_sequence(self):
        if not self.is_playing:
            return

        bpm_value = self.bpm.get()
        delay = int((60 / bpm_value) * 1000 / 4)

        prev_step = (self.current_step - 1) % self.cols
        for r in range(self.rows):
            self.buttons[r][prev_step].configure(bg="SystemButtonFace")
            self.buttons[r][self.current_step].configure(bg="yellow")

        for r in range(self.rows):
            if self.grid_vars[r][self.current_step].get() == 1:
                inst = self.instruments[r]
                if inst in self.sounds:
                    self.sounds[inst].play()

        self.current_step = (self.current_step + 1) % self.cols
        self.master.after(delay, self.run_sequence)

if __name__ == "__main__":
    root = tk.Tk()
    app = DrumMachine(root)
    root.mainloop()