Add Save model weights immediately future

add save button@Unity then send "saveNow" Toggle to Python.
delete useless method "saveModel" and "loadModel". Use Save/load weights instead.

Aimbot-PPO-MultiScene/Assets/Script/AgentWithGun.cs

@@ -499,6 +499,8 @@ public class AgentWithGun : Agent
         //sensor.AddObservation(raySensorNum); // raySensor数量 int
         sensor.AddObservation(LoadDirDateF); // 用于loadModel的第一级dir
         sensor.AddObservation(loadDirTimeF); // 用于loadModel的第二级dir
+        sensor.AddObservation(saveNow); // sent saveNow Toggle to python let agent save weights
+        saveNow = 0; // reset saveNow Toggle
         //sensor.AddObservation(remainTime); // RemainTime int
     }
 

Aimbot-PPO-MultiScene/Assets/Script/SaveWeightsButton.cs

@@ -7,5 +7,7 @@ public class SaveWeightsButton : MonoBehaviour
     public GameObject Agent;
     public void onButtonClicked()
     {
+        // set saveNow to active.
+        Agent.GetComponent<AgentWithGun>().saveNow = 1;
     }
 }