Create note package

2019-07-03 10:16:05 +02:00
parent f826516d8f
commit 2823fd1896
40 changed files with 188 additions and 958 deletions
--- a/smnp/note/pitch.py
+++ b/smnp/note/pitch.py
@@ -0,0 +1,71 @@
+from enum import Enum
+from smnp.error.syntax import SyntaxException
+
+class NotePitch(Enum):
+    C = 0
+    CIS = 1
+    D = 2
+    DIS = 3
+    E = 4
+    F = 5
+    FIS = 6
+    G = 7
+    GIS = 8
+    A = 9
+    AIS = 10
+    H = 11
+    
+    def toFrequency(self):
+        return {
+            NotePitch.C: 16.35,
+            NotePitch.CIS: 17.32,
+            NotePitch.D: 18.35,
+            NotePitch.DIS: 19.45,
+            NotePitch.E: 20.60,
+            NotePitch.F: 21.83,
+            NotePitch.FIS: 23.12,
+            NotePitch.G: 24.50,
+            NotePitch.GIS: 25.96,
+            NotePitch.A: 27.50,
+            NotePitch.AIS: 29.17,
+            NotePitch.H: 30.87
+        }[self]
+    
+    def __str__(self):
+        return self.name
+    
+    def __repr__(self):
+        return self.__str__()    
+    
+    #@staticmethod
+    #def checkInterval(a, b):
+        #return a.value - b.value
+    
+    @staticmethod
+    def toPitch(string): #TODO: token zamiast stringa, żeby można było wziąć pos
+        try:            
+            return stringToPitch[string.lower()]
+        except KeyError as e:
+            raise SyntaxException(None, f"Note '{string}' does not exist")
+
+stringToPitch = {
+    'c': NotePitch.C,
+    'c#': NotePitch.CIS,
+    'db': NotePitch.CIS,
+    'd': NotePitch.D,
+    'd#': NotePitch.DIS,
+    'eb': NotePitch.DIS,
+    'e': NotePitch.E,
+    'fb': NotePitch.E,
+    'e#': NotePitch.F,
+    'f': NotePitch.F,
+    'f#': NotePitch.FIS,
+    'gb': NotePitch.FIS,
+    'g': NotePitch.G,
+    'g#': NotePitch.GIS,
+    'ab': NotePitch.GIS,
+    'a': NotePitch.A,
+    'a#': NotePitch.AIS,
+    'b': NotePitch.AIS,
+    'h': NotePitch.H
+}