[SOLVED] X- Y- Laser Control with Joystick, Absolute vs. Incremental movement

Projects General Guidance
6 
#include <Servo.h>    // Use Servo library, included with IDE

Servo servoX;        // Create Servo object to control the servo 
Servo servoY;
int laser = 2;
int potpinX = A4;
int potpinY = A5;
const int servoPause = 1;

void setup() 
{ 
  servoX.attach(9);  // Servo x is connected to digital pin 9
  servoY.attach(11); 
  pinMode(laser, OUTPUT);
  pinMode(potpinX, INPUT);  
  pinMode(potpinY, INPUT);
  
  Serial.begin(9600);
  
  digitalWrite(laser, HIGH);
} 

void loop() 
{ 
  
  const int XCenterVal = 512, YCenterVal = 512;  //  Values of pot input when centered
  const int XpotSpeed = 200, YpotSpeed = 20;  // Scale value for controlling speed of movement (higher=slower)

  int XpotVal = analogRead(potpinX) - XCenterVal;
  int YpotVal = analogRead(potpinY) - YCenterVal;
  int servoAngleX = constrain(servoAngleX + (XpotVal/XpotSpeed), 180, 0);
  int servoAngleY = constrain(servoAngleY + (YpotVal/YpotSpeed), 180, 0);
  
  servoX.write(servoAngleX);
  servoY.write(servoAngleY);
  
  Serial.print(XpotVal);
  Serial.print("  ");
  Serial.println(YpotVal);
  
  delay(servoPause);
  
}

Well lets begin with the constrain- why constrain? I'm not looking to limit values, i still want to use the full range of motion of the servos as well as the pot. That is why I used the map function in my original code. Also, while running the code in my head I noticed that if the pot read less that 512 the int X/YpotVal would be a negative number, isn't this undesirable and non-functional?

And why the difference in scale values? I assumed the difference was simply a typo, but did also compile it with these values in the interest of running the code as provided.

What would have proved more helpful is a description along with the code you provided. I assume the code was to be applied as such, and it did compile correctly.