Implemented ability to read combatant definitions from files

lib/battle.py

@@ -662,3 +662,88 @@ def do_combatant_select(battle, data):
             print 'Error: Battle not started and no combatant specified.'
     
     return c
+
+
+# Read combatant/groups in from a file, return a simple list of CombatGroups
+def combatgroups_from_file(filename):
+    ret = []
+
+    with open(filename, 'r') as f:
+        group_data = {}
+
+        for line in f.read().split('\n'):
+            line = line.strip()
+
+            if line == '':
+                if group_data == {}:
+                    continue
+
+                g = _build_group_from_file_data(group_data)
+                if g is not None:
+                    ret.append(g)
+                else:
+                    print 'Error: Failed to read a group definition from file: {}'.format(filename)
+                group_data = {}
+
+            else:
+                try:
+                    var, value = line.split('=')
+                except ValueError:
+                    print 'Error: Bad value in data file. No data from file parsed.'
+                    return []
+
+                group_data[var] = value
+
+    return ret
+
+
+def _build_group_from_file_data(data):
+    if not _validate_group_data(data):
+        return None
+
+    if 'count' in data:
+        if 'groupname' in data:
+            gname = data['groupname']
+        else:
+            gname = data['name'] + 's'
+
+        count = int(data['count'])
+    else:
+        count = 1
+        gname = data['name']
+
+    members = {}
+    for i in range(count):
+        c = Combatant(data['name'], int(data['hp']), data['pc'],
+                      int(data['init']), int(data['surges']),
+                      int(data['ap']), data['sw'], data['recharges'])
+        members[c.index] = c
+
+    return CombatGroup(gname, members, data['init'])
+
+
+def _validate_group_data(data):
+    if not 'pc' in data:
+        data['pc'] = False
+
+    if not 'ap' in data:
+        data['ap'] = 0
+
+    if not 'init' in data:
+        data['init'] = 0
+
+    if not 'surges' in data:
+        data['surges'] = 0
+
+    if not 'count' in data:
+        data['count'] = 1
+
+    if not 'recharges' in data:
+        data['recharges'] = []
+
+    if data['pc']:
+        data['sw'] = 1
+    else:
+        data['sw'] = 0
+
+    return 'name' in data and 'hp' in data