Attempt to fix mech and fighter movement issues within space. (#7376)

* Attempt to fix mech and fighter movement issues within space.

Here is the issue in question: https://github.com/VOREStation/VOREStation/issues/8438

* Update Mecha.dm to fix #7376 request

code/game/mecha/mecha.dm

@@ -585,6 +585,15 @@
 			last_message = world.time
 		return 0
 
+
+/*
+//A first draft of a check to stop mechs from moving fully. TBD when all thrusters modules are unified.
+	if(!thrusters && !src.pr_inertial_movement.active() && isspace(src.loc))//No thrsters, not drifting, in space
+		src.occupant_message("Error 543")//debug
+		return 0
+*/
+
+
 	if(!thrusters && src.pr_inertial_movement.active()) //I think this mean 'if you try to move in space without thruster, u no move'
 		return 0
 
@@ -2487,4 +2496,4 @@
 			if(-INFINITY to 15)
 				occupant.throw_alert("mech damage", /obj/screen/alert/low_mech_integrity, 3)
 			else
-				occupant.clear_alert("mech damage")
+				occupant.clear_alert("mech damage")

code/modules/mob/mob_movement.dm

@@ -194,7 +194,7 @@
 			return result
 
 	// Can't control ourselves when drifting
-	if(isspace(loc) || my_mob.lastarea?.has_gravity == 0)
+	if((isspace(loc) || my_mob.lastarea?.has_gravity == 0) && !my_mob.in_enclosed_vehicle)	//If(In space or last area had no gravity) or(you in vehicle)
 		if(!my_mob.Process_Spacemove(0))
 			return 0