analog read doesnt work on 16u2?

[MelvinShwuaner]

I plugged a joycon module into my elegoo uno R3, and sent its readings to A1, A2, A3, setting its board to hoodloader uno and changing the A to PC, it still could read the values, but changing it to hoodloader 16u2, analog read just returns 0? and i need 16u2 as i want to use my board as a HID! heres my code:

#include <HID-Project.h>
#include <HID-Settings.h>
void setup() {
Serial.begin(9600);
Mouse.begin();
}

void loop() {
int xPos = analogRead(PC1);
int yPos = analogRead(PC2);
Serial.print(xPos);
Serial.print(',');
Serial.println(yPos);
Mouse.move(1 ? yPos > 1000 : -1 ? yPos < 500 : 0, 1 ? xPos > 1000 : -1 ? xPos < 500 : 0);
}