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Add MusicPlayer.py

This new MusicPlayer.py replaces the old music_player.py. It is imported into UPBGE as a component, and replaces two sensors, one controller and an actuator. Controls should be as expected, but are welcome to change (especially for keyboard input)
Farmerjoe12 5 years ago
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14869f9e21
1 changed files with 161 additions and 0 deletions
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      MusicPlayer.py

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MusicPlayer.py View File

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+import bge
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+import os
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+import aud
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+import random
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+import glob
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+from DList import DoubleList
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+from collections import OrderedDict
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+from tinytag import TinyTag
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+
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+""" This is the Music Player as a component """
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+class MusicPlayer(bge.types.KX_PythonComponent):
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+
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+    args = OrderedDict([])    
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+
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+    def start(self, args):
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+        # dictionary
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+        self.dictionary = bge.logic.globalDict
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+        
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+        # get mp3 files from the disk and create a list
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+        self.directory = bge.logic.expandPath('//Music')
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+        file_name = self.directory + '\\*.mp3'
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+        file_list =  glob.glob(file_name)
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+        
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+        # use the mp3 list to make a playlist of nodes
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+        self.playlist = DoubleList()
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+        for name in file_list:
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+            self.playlist.append(name)
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+        
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+        # previously played list of nodes
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+        self.alreadyPlayed = DoubleList()
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+        
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+        # get a random song from the playlist, 
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+        # remove it from the playlist
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+        # add it to the alreadyPlayed list
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+        # NOTICE: currentNode is a reference to a NODE in a list, if you want to play the song inside the node, use .data
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+        self.currentNode = self.playlist.get(random.randint(0, self.playlist.getLength()))
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+        self.nowPlaying = self.currentNode.getData()
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+        self.playlist.remove(self.currentNode)
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+        self.alreadyPlayed.append(self.nowPlaying)
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+        print("Now Playing: " + self.nowPlaying)
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+        self.setTag()
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+        self.isPlaying = False
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+
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+        # create audio devices
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+        self.device = aud.device()
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+        self.factory = aud.Factory(self.nowPlaying)
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+        self.handle = None        
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+    
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+    """ Update is called once every frame, and this is where
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+        any input handling should go
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+        
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+        Controller Buttons: 
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+        Y-Button - Play/Pause
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+        LB       - Previous Track
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+        RB       - Next Track
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+        
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+        TODO: Keyboard Buttons if these aren't alright
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+        P        - Play/Pause
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+        Pad Plus - Next Track
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+        Pad Minus- Prev Track
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+    """
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+    def update(self):
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+        keyboard = bge.logic.keyboard.events
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+        up_dict = bge.logic.globalDict
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+        #print(dictionary)
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+        pKey = keyboard[bge.events.PKEY]
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+        pPlus = keyboard[bge.events.PADPLUSKEY]
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+        pMinus = keyboard[bge.events.PADMINUS]
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+        lb = up_dict['lBump']
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+        last_lb = up_dict['last_lBump']
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+        rb = up_dict['rBump']
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+        last_rb = up_dict['last_rBump']
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+        y = up_dict['yBut']
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+        last_y = up_dict['last_yBut']
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+        JUST_ACTIVATED = bge.logic.KX_INPUT_JUST_ACTIVATED
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+        
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+        # Music controls only during pause/replay
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+        if up_dict['npause'] == True or up_dict['playback'] == True:
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+            #stop/play
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+            if (y == False and last_y == True) or pKey == JUST_ACTIVATED:
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+                if self.isPlaying:
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+                    self.stopMusic()
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+                else:
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+                    self.playMusic()
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+            # Prev/Next
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+            if self.isPlaying and self.handle.status:
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+                if pMinus == JUST_ACTIVATED or (lb == False and last_lb == True):
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+                    self.prevSong()
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+                
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+                if pPlus == JUST_ACTIVATED or (rb == False and last_rb == True):
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+                    self.nextSong()
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+        # if song ends, play next song
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+        if self.isPlaying and not self.handle.status:
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+            self.nextSong()
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+
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+    """ get info about song using TinyTag, then print to console """
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+    def setTag(self):                
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+        self.currTrackPath = os.path.join(self.directory, self.nowPlaying)
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+        tag = TinyTag.get(self.currTrackPath)
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+        self.currArtist = tag.artist
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+        self.currTrackTitle = tag.title
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+        self.dictionary['mu_artist'] = self.currArtist
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+        self.dictionary['mu_title'] = self.currTrackTitle
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+                
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+        print('Artist: %s' % self.currArtist, 
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+                ' Track: %s' % self.currTrackTitle)
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+
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+    def playMusic(self):
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+        print('Play Music')
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+        self.setTag()
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+        self.handle = self.device.play(self.factory)
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+        self.isPlaying = True
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+        
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+    def stopMusic(self):
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+        print('Stop Music')
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+        self.handle.stop()
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+        self.isPlaying = False
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+        
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+    def nextSong(self):
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+        print('Next Song')
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+        # stop the current song
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+        self.handle.stop()
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+        
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+        # get a song from the playlist
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+        self.currentNode = self.playlist.get(random.randint(0, self.playlist.getLength()))
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+        self.nowPlaying = self.currentNode.getData()
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+        self.playlist.remove(self.currentNode)
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+                
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+        # add the song to the already played list
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+        self.alreadyPlayed.append(self.nowPlaying)  
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+        
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+        # start the song
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+        self.factory = aud.Factory(self.nowPlaying)
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+        self.handle = self.device.play(self.factory)
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+        self.setTag()
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+        
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+        # If playlist is empty, re-fill it
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+        if self.playlist.getLength() == 0:
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+            file_name = self.directory + '\\*.mp3'
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+            file_list =  glob.glob(file_name)
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+            for name in file_list:
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+                self.playlist.append(name)
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+        
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+    """ Note on first call of this method, the current node will be equal to the tail of the already played list, 
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+        however, it will be a node from a different list. We need to set current node equal to the tail node
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+        of the already played list so that we can iterate through that list, instead of the other list """
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+    def prevSong(self):
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+        print('Prev Song')
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+        # stop the current song
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+        self.handle.stop()        
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+        
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+        if self.currentNode.getData() == self.alreadyPlayed.getTail().getData():
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+            self.currentNode = self.alreadyPlayed.getTail()
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+            
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+        self.currentNode = self.currentNode.getPrev()
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+        self.nowPlaying = self.currentNode.getData()
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+        
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+        # start the song
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+        self.factory = aud.Factory(self.nowPlaying)
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+        self.handle = self.device.play(self.factory)
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+        self.setTag()

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