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Integration with RLlib (v3.0) #249

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20 changes: 19 additions & 1 deletion pufferlib/ocean/drive/binding.c
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Original file line number Diff line number Diff line change
Expand Up @@ -187,8 +187,26 @@ static int my_init(Env *env, PyObject *args, PyObject *kwargs) {
env->human_agent_idx = unpack(kwargs, "human_agent_idx");
env->ini_file = unpack_str(kwargs, "ini_file");
env_init_config conf = {0};

// Check if INI file exists before parsing
FILE *ini_check = fopen(env->ini_file, "r");
if (ini_check == NULL) {
char error_msg[1024];
snprintf(error_msg, sizeof(error_msg),
"INI config file not found: '%s'. "
"Please ensure the file exists at this path.",
env->ini_file);
PyErr_SetString(PyExc_FileNotFoundError, error_msg);
return -1;
}
fclose(ini_check);

if (ini_parse(env->ini_file, handler, &conf) < 0) {
printf("Error while loading %s", env->ini_file);
char error_msg[1024];
snprintf(error_msg, sizeof(error_msg),
"Failed to parse INI config file: '%s'", env->ini_file);
PyErr_SetString(PyExc_ValueError, error_msg);
return -1;
}
if (kwargs && PyDict_GetItemString(kwargs, "episode_length")) {
conf.episode_length = (int)unpack(kwargs, "episode_length");
Expand Down
8 changes: 5 additions & 3 deletions pufferlib/ocean/drive/drive.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,8 @@
from multiprocessing import Pool, cpu_count
from tqdm import tqdm

_PACKAGE_DIR = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
_INI_FILE = os.path.join(_PACKAGE_DIR, "config", "ocean", "drive.ini")

class Drive(pufferlib.PufferEnv):
def __init__(
Expand Down Expand Up @@ -83,7 +85,7 @@ def __init__(
+ self.max_partner_objects * self.partner_features
+ self.max_road_objects * self.road_features
)
self.single_observation_space = gymnasium.spaces.Box(low=-1, high=1, shape=(self.num_obs,), dtype=np.float32)
self.single_observation_space = gymnasium.spaces.Box(low=-1, high=2, shape=(self.num_obs,), dtype=np.float32)

self.init_steps = init_steps
self.init_mode_str = init_mode
Expand Down Expand Up @@ -209,7 +211,7 @@ def __init__(
max_controlled_agents=self.max_controlled_agents,
map_path=self.map_files[map_ids[i]],
max_agents=nxt - cur,
ini_file="pufferlib/config/ocean/drive.ini",
ini_file=_INI_FILE,
init_steps=init_steps,
init_mode=self.init_mode,
control_mode=self.control_mode,
Expand Down Expand Up @@ -281,7 +283,7 @@ def step(self, actions):
max_controlled_agents=self.max_controlled_agents,
map_path=self.map_files[map_ids[i]],
max_agents=nxt - cur,
ini_file="pufferlib/config/ocean/drive.ini",
ini_file=_INI_FILE,
init_steps=self.init_steps,
init_mode=self.init_mode,
control_mode=self.control_mode,
Expand Down
4 changes: 2 additions & 2 deletions setup.py
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Original file line number Diff line number Diff line change
Expand Up @@ -307,10 +307,10 @@ def run(self):

install_requires = [
"setuptools",
"numpy<2.0",
"numpy",
"shimmy[gym-v21]",
"gym==0.23",
"gymnasium==0.29.1",
"gymnasium==1.2.2",
"pettingzoo==1.24.1",
]

Expand Down