Can you execute C# from single string in game?

I want to know if it is possible to execute C# from a string in game (such as "save.health = 500" or "killDepth = -500" or "if (soulContainer.transform.childcount >= 0) {Debug.Log("Souls count: " + soulContainer.transform.childCound) " (I am pretty sure some errors would be thrown. but you should understand what I mean). I am trying to make a Command Console for in-game debugging and messing around, but doing case switch is a lot of work and errors (I currently got it 'ok' working but pretty sure things aren't as great as they could be). Currently, it looks like this jumbled mess , and being able to just execute C# from a string with out having to program every little thing would be a huge time saver

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using UnityEngine.UI;
4. using UnityEngine.SceneManagement;
5.  
6. public class CommandManager : MonoBehaviour {
7.  
8.     private GameManager gm;
9.  
10.     void Start () {
11.         if (GameObject.Find ("GameManager").GetComponent<GameManager> () == null) {
12.             Debug.Log ("Game Manager Not Found");
13.         } else {
14.             gm = GameObject.Find ("GameManager").GetComponent<GameManager> ();
15.         }
16.     }
17.  
18.     void Update () {
19.         CommandControl ();
20.         CommandInput ();
21.     }
22.  
23.     //CONTROLS TURNING ON/OFF THE COMMAND CONSOLE
24.     public void CommandControl(){
25.         if (Input.GetKeyUp (KeyCode.RightAlt) && gm.commandEnabled) {
26.             if (!gm.commandOpen) {
27.                 gm.commandOpen = true;
28.                 gm.commandConsole.SetActive (true);
29.                 gm.ShowMouse ();
30.             } else if (gm.commandOpen){
31.                 gm.commandOpen = false;
32.                 gm.commandConsole.SetActive (false);
33.                 gm.HideMouse ();
34.             }
35.         }
36.     }
37.  
38.     //CONTROLS INPUT OF COMMANDS
39.     public void CommandInput(){
40.         if (gm.commandOpen) {
41.             if (Input.GetKeyUp (KeyCode.Return) || Input.GetKeyUp (KeyCode.KeypadEnter)) {
42.                 if (gm.commandInput.text.Length >= 1) {
43.                     gm.commandString = gm.commandInput.text;
44.                     gm.commandString.ToLower ();
45.                     gm.commandSplit = gm.commandString.Split (' ');
46.                     CheckCommand (gm.commandSplit);
47.                     gm.commandInput.text = "";
48.                 }
49.             }
50.         }
51.     }
52.     //EASIER CHANGE COMMAND RETURN TEST
53.     public void ReturnCommand (string command){
54.         gm.commandReturn.text = command;
55.     }
56.  
57.  
58.  
59.     //ALL COMMANDS
60.     public void CheckCommand(string[] command){
61.         switch (command[0]) {
62.         case "killplayer":
63.             gm.KillPlayer ();
64.             ReturnCommand ("Player Killed");
65.             break;
66.         case "quit":
67.             ReturnCommand ("bye bye");
68.             gm.QuitGame ();
69.             break;
70.         case "save":
71.             ReturnCommand ("Game Saved");
72.             SaveLoad.Save ();
73.             break;
74.         case "restart":
75.             ReturnCommand ("Restarting");
76.             SceneManager.LoadScene (SceneManager.GetActiveScene ().name);
77.             break;
78.         case "hidemouse":
79.             gm.HideMouse ();
80.             break;
81.         case "showmouse":
82.             gm.ShowMouse ();
83.             break;
84.         case "sethealth":
85.             SetHealth (command [1]);
86.             ReturnCommand ("Health set to" + command [1]);
87.             break;
88.         default :
89.             ReturnCommand ("Unknown Command");
90.             break;
91.         }
92.  
93.         gm.commandInput.text = "";
94.     }
95.  
96.     //==============COMMAND METHODS===========================
97.  
98.     //SETHEALTH COMMAND
99.     void SetHealth(string health){
100.         if (int.Parse (health) >= 1) {
101.             gm.health = int.Parse(health);
102.         }
103.     }
104.        
105. }
106.  

(I don't know the "proper" way of producing a GameManager, but I am using mine for storing all the main variables and GameObject references for easier access without having to create a lot more variables than needed.)

 

Let's start with the easy answer: Use a singleton.

Code (csharp):

1. public class GameManager : MonoBehaviour {
2. public static GameManager instance;
3.  
4. void Awake() {
5. instance = this;
6. }
7. }
8. // anywhere else
9. GameManager.commandOpen = true;
10.  

As for the console, executing native C# code in the way you want ranges from "virtually impossible" to "actually impossible" depending on the platform you're deploying to. And on top of that, opens up a whole can of worms in terms o security and stability. Best to do it the hard way.