1 files changed, 74 insertions, 0 deletions
diff --git a/common/Generation/Utils.py b/common/Generation/Utils.py
new file mode 100644
index 0000000..e5ea295
--- /dev/null
+++ b/common/Generation/Utils.py
@@ -0,0 +1,74 @@
+import random
+import time
+import math
+
+#----------------------------------------------------------------------
+# TODO: replace magic numbers with constants
+# http://en.wikipedia.org/wiki/Magic_number_(programming)
+#----------------------------------------------------------------------
+
+def prob(x):
+    sum1 = 0
+    sum2 = 0
+    
+    for i in x:
+        sum1 = sum1 + i
+
+    val = sum1 * random.randint(0, 32767) / 32768
+
+    for i in range(len(x)):
+        sum2 = sum2 + x[i]
+        if x[i]:
+            if sum2 >= val:
+                return i
+                break	
+
+def prob2(x):
+    sum1 = 0
+    sum2 = 0
+
+    for i in x:
+        sum1 = sum1 + i[1]
+
+    val = sum1 * random.randint(0, 32767) / 32768
+    
+    for i in x:
+        sum2 = sum2 + i[1]
+        if i[1]:
+            if sum2 >= val:
+                return i[0]
+                break
+
+def scale(val, mini=0., maxi=1., length=100):
+    slope = []
+
+    up = 1.-val 
+    if up <= 0.5:
+        low_val = (pow(1.-(up*2.),4.)*(-50.5)+0.5)
+    else:
+        low_val = up
+
+    if val <= 0.5:
+        high_val = (pow(1.-(val * 2.),4.)*(-50.5)+0.5)
+    else:
+        high_val = val
+
+    step = (maxi - mini) * (1. / length)
+
+    calc = (1. / length) * (high_val - low_val)
+    append = slope.append
+    for i in range(length + 1):
+        temp = i * calc + low_val
+        if temp < 0:
+            temp = 0
+        elif temp > 1:
+            temp = 1
+        else:
+            temp = temp	
+
+        append(((step * i) + mini, int(temp * 100)))
+
+    return slope	
+
+def midtotrans(x):
+    return pow(1.059463, x - 36)