Update deprecated numpy attributes.

Changes np.Inf to np.inf and np.int to int.

Users may get a attribute error on using np.Inf for newer numpy versions. This should be a non-breaking change since np.inf is available in older numpy versions (and already used across this repo).

src/overcooked_ai_py/agents/agent.py

@@ -445,7 +445,7 @@ def get_lowest_cost_action_and_goal(self, start_pos_and_or, motion_goals):
         Chooses motion goal that has the lowest cost action plan.
         Returns the motion goal itself and the first action on the plan.
         """
-        min_cost = np.Inf
+        min_cost = np.inf
         best_action, best_goal = None, None
         for goal in motion_goals:
             action_plan, _, plan_cost = self.mlam.motion_planner.get_plan(

src/overcooked_ai_py/mdp/layout_generator.py

@@ -399,7 +399,7 @@ def get_random_starting_positions(self, grid, divider_x=None):
 class Grid(object):
     def __init__(self, shape):
         assert len(shape) == 2, "Grid must be 2 dimensional"
-        grid = (np.ones(shape) * TYPE_TO_CODE[COUNTER]).astype(np.int)
+        grid = (np.ones(shape) * TYPE_TO_CODE[COUNTER]).astype(int)
         self.mtx = grid
         self.shape = np.array(shape)
         self.width = shape[0]

src/overcooked_ai_py/mdp/overcooked_env.py

@@ -430,7 +430,7 @@ def run_agents(
         display=False,
         dir=None,
         display_phi=False,
-        display_until=np.Inf,
+        display_until=np.inf,
     ):
         """
         Trajectory returned will a list of state-action pairs (s_t, joint_a_t, r_t, done_t, info_t).
@@ -491,7 +491,7 @@ def get_rollouts(
         dir=None,
         final_state=False,
         display_phi=False,
-        display_until=np.Inf,
+        display_until=np.inf,
         metadata_fn=None,
         metadata_info_fn=None,
         info=True,

src/overcooked_ai_py/planning/planners.py

@@ -165,7 +165,7 @@ def get_gridworld_pos_distance(self, pos1, pos2):
         to go from starting position to goal position (not including
         interaction action)."""
         # NOTE: currently unused, pretty bad code. If used in future, clean up
-        min_cost = np.Inf
+        min_cost = np.inf
         for d1, d2 in itertools.product(Direction.ALL_DIRECTIONS, repeat=2):
             start = (pos1, d1)
             end = (pos2, d2)
@@ -364,8 +364,8 @@ def min_cost_between_features(
         Determines the minimum number of timesteps necessary for a player to go from any
         terrain feature in list1 to any feature in list2 and perform an interact action
         """
-        min_dist = np.Inf
-        min_manhattan = np.Inf
+        min_dist = np.inf
+        min_manhattan = np.inf
         for pos1, pos2 in itertools.product(pos_list1, pos_list2):
             for mg1, mg2 in itertools.product(
                 self.motion_goals_for_pos[pos1],
@@ -383,7 +383,7 @@ def min_cost_between_features(
                     min_dist = curr_dist
 
         # +1 to account for interaction action
-        if manhattan_if_fail and min_dist == np.Inf:
+        if manhattan_if_fail and min_dist == np.inf:
             min_dist = min_manhattan
         min_cost = min_dist + 1
         return min_cost
@@ -401,7 +401,7 @@ def min_cost_to_feature(
         """
         start_pos = start_pos_and_or[0]
         assert self.mdp.get_terrain_type_at_pos(start_pos) != "X"
-        min_dist = np.Inf
+        min_dist = np.inf
         best_feature = None
         for feature_pos in feature_pos_list:
             for feature_goal in self.motion_goals_for_pos[feature_pos]:
@@ -841,7 +841,7 @@ def _handle_conflict_with_same_goal_idx(
                 if self._agents_are_in_same_position(
                     (curr_pos_or0, curr_pos_or1)
                 ):
-                    return None, None, [np.Inf, np.Inf]
+                    return None, None, [np.inf, np.inf]
 
             else:
                 curr_pos_or0, curr_pos_or1 = next_pos_or0, next_pos_or1
@@ -860,7 +860,7 @@ def _handle_conflict_with_same_goal_idx(
 
         end_pos_and_or = (curr_pos_or0, curr_pos_or1)
         finishing_times = (
-            (np.Inf, idx1) if wait_agent_idx == 0 else (idx0, np.Inf)
+            (np.inf, idx1) if wait_agent_idx == 0 else (idx0, np.inf)
         )
         return joint_plan, end_pos_and_or, finishing_times