Switch to the singular sources tree and releasing scheme

1 files changed, 84 insertions, 0 deletions

diff --git a/Jam/GenRythm.py b/Jam/GenRythm.py
new file mode 100644
index 0000000..b9e6d48
--- /dev/null
+++ b/Jam/GenRythm.py
@@ -0,0 +1,84 @@
+import random
+import common.Config as Config
+import common.Util.InstrumentDB as InstrumentDB
+
+from common.Generation.GenerationConstants import GenerationConstants
+from common.Generation.Utils import *
+
+class GenRythm:
+    def __init__(self):
+        self.instrumentDB = InstrumentDB.getRef()
+
+    def drumRythmSequence(self, instrumentName, nbeats, density, regularity ):
+        rythmSequence = []
+        binSelection = []
+        downBeats = []
+        upBeats = []
+        beats = []
+        countDown = 0
+        onsetTime = None
+
+        if self.instrumentDB.instNamed[instrumentName].instrumentRegister == Config.PUNCH:
+            registerDensity = 0.5
+            downBeatRecurence = 4
+            downBeats = [x for x in GenerationConstants.DRUM_PUNCH_ACCENTS[ nbeats ]]
+            for downBeat in downBeats:
+                upBeats.append( downBeat + Config.TICKS_PER_BEAT / 2 )
+
+        if self.instrumentDB.instNamed[instrumentName].instrumentRegister == Config.LOW:
+            registerDensity =1
+            downBeatRecurence = 4
+            downBeats = [x for x in GenerationConstants.DRUM_LOW_ACCENTS[ nbeats ]]
+            for downBeat in downBeats:
+                upBeats.append( downBeat + Config.TICKS_PER_BEAT / 2 )
+
+        if self.instrumentDB.instNamed[instrumentName].instrumentRegister == Config.MID:
+            registerDensity = .75
+            downBeatRecurence = 1
+            downBeats = [x for x in GenerationConstants.DRUM_MID_ACCENTS[ nbeats ]]
+            for downBeat in downBeats:
+                upBeats.append( downBeat + Config.TICKS_PER_BEAT / 4 )
+
+        if self.instrumentDB.instNamed[instrumentName].instrumentRegister == Config.HIGH:
+            registerDensity = 1.5
+            downBeatRecurence = 1
+            downBeats = [x for x in GenerationConstants.DRUM_HIGH_ACCENTS[ nbeats ]]
+            for downBeat in downBeats:
+                upBeats.append( downBeat + Config.TICKS_PER_BEAT / 4 )
+
+        realDensity = density * registerDensity
+        if realDensity > 1.:
+            realDensity = 1.
+
+        list = range( int( realDensity  * len( downBeats ) ) )
+        for i in list:
+            if random.random() < ( regularity * downBeatRecurence ) and binSelection.count( 1 ) < len( downBeats ):
+                binSelection.append( 1 )
+            else:
+                if binSelection.count( 0 ) < len( downBeats ):
+                    binSelection.append( 0 )
+                else:
+                    binSelection.append( 1 )
+
+        countDown = binSelection.count( 1 )
+
+        length = len(downBeats) - 1
+        for i in range( countDown ):
+            ran1 = random.randint(0, length)
+            ran2 = random.randint(0, length)
+            randMin = min(ran1, ran2)
+            onsetTime = downBeats.pop(randMin)
+            rythmSequence.append( onsetTime )
+            length -= 1
+
+        length = len(upBeats) - 1
+        for i in range( len( binSelection ) - countDown ):
+            ran1 = random.randint(0, length)
+            ran2 = random.randint(0, length)
+            randMin = min(ran1, ran2)
+            onsetTime = upBeats.pop(randMin)
+            rythmSequence.append( onsetTime )
+            length -= 1
+
+        rythmSequence.sort()
+        return rythmSequence