I am not sure I understand your code, because I don’t know your entire code.
But basically you need to detect the cell the player is in.
Then you check whether the cell underneath it is not air.
Set a boolean marker falling
- to true when it’s air
- to false when it’s solid
Where you move the player check falling :
if(falling)
playerY++; // or what your variable name is called
make falling a global variable: boolean falling = false;
Chrisir