Start implementing support for mutaplasmids.

* There's a new table `mutators` that has an FK back to a module, and links to an attribute ID with it's new value
* Fixes an issue in the item state where the "base" value showed the literal base value for the attribute, regardless of override / mutators
* If there is an override and a mutated attribute, mutated value takes effect

eos/modifiedAttributeDict.py

@@ -33,6 +33,14 @@ class ItemAttrShortcut(object):
 
         return return_value or default
 
+    def getBaseAttrValue(self, key, default=0):
+        '''
+        Gets base value in this order:
+        Mutated value > override value > attribute value
+        '''
+        return_value = self.itemModifiedAttributes.getOriginal(key)
+
+        return return_value or default
 
 class ChargeAttrShortcut(object):
     def getModifiedChargeAttr(self, key, default=0):
@@ -59,8 +67,10 @@ class ModifiedAttributeDict(collections.MutableMapping):
         self.__modified = {}
         # Affected by entities
         self.__affectedBy = {}
-        # Overrides
+        # Overrides (per item)
         self.__overrides = {}
+        # Mutators (per module)
+        self.__mutators = {}
         # Dictionaries for various value modification types
         self.__forced = {}
         self.__preAssigns = {}
@@ -100,6 +110,14 @@ class ModifiedAttributeDict(collections.MutableMapping):
     def overrides(self, val):
         self.__overrides = val
 
+    @property
+    def mutators(self):
+        return {x.attr.name: x for x in self.__mutators}
+
+    @mutators.setter
+    def mutators(self, val):
+        self.__mutators = val
+
     def __getitem__(self, key):
         # Check if we have final calculated value
         key_value = self.__modified.get(key)
@@ -128,14 +146,16 @@ class ModifiedAttributeDict(collections.MutableMapping):
             del self.__intermediary[key]
 
     def getOriginal(self, key, default=None):
+        val = None
         if self.overrides_enabled and self.overrides:
-            val = self.overrides.get(key, None)
-        else:
-            val = None
+            val = self.overrides.get(key, val)
+
+        # mutators are overriden by overrides. x_x
+        val = self.mutators.get(key, val)
 
         if val is None:
             if self.original:
-                val = self.original.get(key, None)
+                val = self.original.get(key, val)
 
         if val is None and val != default:
             val = default