rounding issues with isometric mousex,y to tile

[LordChandar]

Howdy...

I have really enjoyed all the dialogue so far with the questions and answers to my questions.  This is an awesome community.

Today, I seem to be having a possible rounding issue with translating mousexy coordinates back to the exact isometric tile.  I use two functions:

1   2   3   4   5   6   7   8   9

public RPGUtil.point ScreenToIsoPos(int screenX, int screenY)     {         //System.out.printf("@AY:AX = %d:%d\n",screenY,screenX);                 float isoX = (((float)screenX) / ((float)this.terrain_width / 2.0f) + ((float)screenY) / ((float)this.terrain_height / 2.0f)) / 2.0f;         float isoY = (((float)screenY) / ((float)this.terrain_height / 2.0f) - ((float)screenX) / ((float)this.terrain_width / 2.0f)) / 2.0f;         //System.out.printf("@isoY:isoX = %d:%d\n",isoY,isoX);        return new RPGUtil.point((short)Math.floor(isoX), (short)(Math.floor(isoY)));     }

I have tried floor() and round() and it does the same thing.

1   2   3   4   5   6   7   8

public RPGUtil.point VirtualScreenToIsoPos(int screenX, int screenY)     {         Point xy = new Point(screenX,screenY);         xy.x-=(short)(this.vp_startX)+this.terrain_width/2;         xy.y-=(short)(this.vp_startY)+this.terrain_height/2;                    return this.ScreenToIsoPos(xy.x, xy.y);     }

The issue seems to be if the mouse is toward the edges of the tile it *should* be on, it hops over to the adjacent tile.

Any one else fixed this issue?

[Gjallar]

Would be great if you would use the

1

tags!

[LordChandar]

My apologies.

I had been having trouble the tags, but now that I have been admonished, I guess that was the motivation I needed to learn them.

Fixed.