better turning

but doesn't work on reverse speed

CG_MarioKart.ino

@@ -65,17 +65,18 @@ void loop() {
   
   //Refresh and scale raw move values
   move = map(ch2, 1000,2000, -255, 255); //center over zero
-  move = constrain(move, -255, 255); //only pass values whose absolutes are
-                                   //valid pwm values
+  
+//  turn = map(ch1,1000,2000,-255,255);
+//  turn = constrain(turn, -255, 255);
   turn = map(ch1,1000,2000,-255,255);
-  turn = constrain(turn, -255, 255);
-
+  turn = constrain(turn, -move, move);
+  
   //calculate each motor speed
   int speeds[2] = {0, 0} ;
   int dirs[2] = {0, 0} ;
   
   if (turn>0) { speeds[0] = move; speeds[1] = move - turn; }
-  else {speeds[0] = move-turn; speeds[1] = move ;}
+  else {turn=abs(turn); speeds[0] = move-turn; speeds[1] = move ;}
 
   //apply to driver
   for(int i =0; i<2; i++) {