add troop file arg

run.py

 # coding: utf-8
 import argparse
 import logging
+import sys
 from random import seed
 
 from synergine2.log import get_default_logger
     map_dir_path: str,
     seed_value: int=None,
     state_file_path: str=None,
+    troops_file_path: str=None,
     state_save_dir: str='.',
     placement_mode: bool = False,
 ):
+    assert not (state_file_path and troops_file_path),\
+        'Do not provide troops file when state file given'
+
     if seed_value is not None:
         seed(seed_value)
 
         state = state_loader.get_state(state_file_path)
         subjects.extend(state.subjects)
 
+    elif troops_file_path:
+        troop_loader_builder = TroopConstructorBuilder(config, simulation)
+        troop_loader = troop_loader_builder.get_troop_loader()
+        troops = troop_loader.get_troops(troops_file_path)
+        subjects.extend(troops.subjects)
+
     simulation.subjects = subjects
 
     core = Core(
     )
     parser.add_argument('map_dir_path', help='map directory path')
     parser.add_argument('--seed', dest='seed', default=None)
+    parser.add_argument('--troops', dest='troops', default=None)
     parser.add_argument('--state', dest='state', default=None)
     parser.add_argument(
         '--state-save-dir',
 
     args = parser.parse_args()
 
+    if args.troops and args.state:
+        print(
+            'Cannot load state "{}" because you provide troops file "{}". '
+            'You must provide only one of them.'.format(
+                args.state,
+                args.troops,
+            ),
+            file=sys.stderr,
+        )
+        exit(1)
+
     main(
         args.map_dir_path,
         seed_value=args.seed,
         state_file_path=args.state,
+        troops_file_path=args.troops,
         state_save_dir=args.state_save_dir,
         placement_mode=args.placement,
     )