Question

Probably missing something basic, but I have a for-loop in my program that’s supposed to iterate over an array (lines[]) and draw them onscreen (using LWJGL/Slick).
Instead of the lines being shown on separate lines (at (i*16 + 7, 5)), they all appear at (7, 5).

for(int i = 0; i < lines.length; i++) {
  if(lines[i] != null) {
    f.drawString((i * 16) + 7, 5, lines[i]);
  }
}

I have seen answers on other questions suggesting to define a final variable in the loop to avoid the value being changed before the called function uses it. So I have changed the code to:

for(int i = 0; i < lines.length; i++) {
  if(lines[i] != null) {
    final int i2 = i;
    f.drawString((i2 * 16) + 7, 5, lines[i]);
  }
}

But it doesn’t fix it (didn’t really expect it to, as I’m not getting stuck on the last value of i and Slick shouldn’t be storing the value of i, but tried it to make sure).

---

The header of drawString is as follows:

public void drawString(float x, float y, String whatchars)

Answer 1

I guess my comment supplied the answer so I’ll post for others to help.

The correct call is to put the offset in the y parameter of the function:

f.drawString(7, (i * 16)+5, lines[i]);

As the function definition is:

public void drawString(float x, float y, String whatchars)