1 files changed, 74 insertions, 0 deletions
diff --git a/TamTamEdit.activity/common/Generation/VariationRythm.py b/TamTamEdit.activity/common/Generation/VariationRythm.py
new file mode 100644
index 0000000..5fb6111
--- /dev/null
+++ b/TamTamEdit.activity/common/Generation/VariationRythm.py
@@ -0,0 +1,74 @@
+import random
+
+import common.Config as Config
+
+# remplacer position dans notesList par l'attribut de CSoundNote
+class RythmShuffle:
+
+    def getNewList( self, notesList, nbeats ):
+        self.barLength = Config.TICKS_PER_BEAT * nbeats
+        self.onsetDelta = 0
+        self.newOnsetList = []
+        self.oldDuration = []
+        self.newDuration = []
+        self.extractOnsetValue(notesList)
+
+        self.newOnsetList = random.sample(range(len(self.originalList)), len(self.originalList))
+        self.getOldDuration(notesList)
+        self.getNewDuration(notesList)
+
+        for i in range(len(notesList)):
+            notesList[i].onset = self.onsetDelta
+            notesList[i].duration = self.oldDuration[i] * self.newDuration[i]
+            self.onsetDelta = self.onsetDelta + self.originalList[self.newOnsetList[i]]
+
+        return notesList
+    
+    def extractOnsetValue( self, notesList ):
+        self.originalList = []
+        for note in notesList:
+            self.originalList.append(note.onset)
+
+        for i in range(len(self.originalList) -1):
+            self.originalList[i] = self.originalList[i+1] - self.originalList[i]
+
+        self.originalList[-1] = self.barLength - (self.originalList[-1] % self.barLength)
+
+    def getOldDuration( self, notesList ):
+        for i in range(len(notesList)):
+            if (i+1) == len(notesList):
+                self.oldDuration.append(notesList[i].duration / (self.barLength - (notesList[i].onset % self.barLength)))
+            else:
+                self.oldDuration.append(notesList[i].duration / (notesList[i+1].onset - notesList[i].onset))
+
+    def getNewDuration( self, notesList ):
+        for i in self.newOnsetList:
+            if (i+1) == len(notesList):
+                self.newDuration.append(self.barLength - (notesList[i].onset % self.barLength))
+            else:
+                self.newDuration.append(notesList[i+1].onset - notesList[i].onset)
+
+class RythmReverse( RythmShuffle ):
+
+    def getNewList( self, notesList, nbeats ):
+        self.barLength = Config.TICKS_PER_BEAT * nbeats
+        self.onsetDelta = 0
+        self.newOnsetList = []
+        self.oldDuration = []
+        self.newDuration = []
+        RythmShuffle.extractOnsetValue( self, notesList )
+
+        for i in range( len( self.originalList ) ):
+            self.newOnsetList.append( i )
+
+        self.newOnsetList.reverse() 
+
+        RythmShuffle.getOldDuration( self, notesList )
+        RythmShuffle.getNewDuration( self, notesList )
+
+        for i in range(len(notesList)):
+            notesList[i].onset = self.onsetDelta
+            notesList[i].duration = self.oldDuration[i] * self.newDuration[i]
+            self.onsetDelta = self.onsetDelta + self.originalList[self.newOnsetList[i]]
+
+        return notesList