add PID script

scripts/pid_control.py

@@ -0,0 +1,26 @@
+import gymnasium as gym
+import numpy as np
+
+def main():
+
+    env_config = {
+        "duration": 10.0,
+        "action": {
+                "type": "PursuitAction"
+            }
+    }
+
+    env = gym.make("flyer-v1", config=env_config, render_mode="rgb_array")
+
+    obs, info = env.reset()
+    observations = []
+    terminated = truncated = False
+    goal = env.unwrapped.goal
+
+    while not (terminated or truncated):
+        action = {"goal_pos": goal[0:2], "other_controls": np.array([goal[-1]/10000, 100.0/300.0])}
+        obs, reward, terminated, truncated, info = env.step(action)
+    env.close()
+
+if __name__=="__main__":
+    main()