1.6.5.8 - fix mesh export error for unity2017.4 (#36)

* 解决mesh不能使用问题导出问题

* 修改缩进格式

* change divide by zero to inf

* fix indent

* fix bin type knowledge

* Mesh cleanup

Author: jesliwang

.editorconfig

@@ -5,7 +5,7 @@ root = true
 charset = utf-8
 end_of_line = lf
 indent_size = 4
-indent_style = tab
+indent_style = space
 quote_type = double
 insert_final_newline = true
 tab_width = 4

UnityPy/__init__.py

@@ -1,4 +1,4 @@
-__version__ = "1.6.5.7"
+__version__ = "1.6.5.8"
 
 from .environment import Environment
 

UnityPy/classes/AnimationClip.py

@@ -80,12 +80,12 @@ def UnpackFloats(
         indexPos: int = bitPos // 8
         bitPos %= 8
 
-        scale: float = 1.0 / self.m_Range
+        scale: float = (1.0 / self.m_Range) if self.m_Range else float('inf')
         if numChunks == -1:
             numChunks = self.m_NumItems // itemCountInChunk
-        end = chunkStride * numChunks / 4
+        end = int(chunkStride * numChunks / 4)
         data = []
-        for index in (0, end, chunkStride // 4):
+        for index in range(0, end, chunkStride // 4):
             for i in range(itemCountInChunk):
                 x = 0  # uint
                 bits = 0
@@ -101,7 +101,8 @@ def UnpackFloats(
                         bitPos = 0
 
                 x &= uint((1 << self.m_BitSize) - 1)  # (uint)(1 << m_BitSize) - 1u
-                data.append(x / (scale * ((1 << self.m_BitSize) - 1)) + self.m_Start)
+                denomi = scale * ((1 << self.m_BitSize) - 1)
+                data.append( (x / denomi if denomi else float('inf')) + self.m_Start)
 
         return data
 
@@ -136,7 +137,7 @@ def UnpackInts(self):
         for i in range(self.m_NumItems):
             bits = 0
             entry = 0
-            while bits << m_BitSize:
+            while bits < m_BitSize:
                 entry |= (self.m_Data[indexPos] >> bitPos) << bits
                 num = min(m_BitSize - bits, 8 - bitPos)
                 bitPos += num