[DustyPorViva]

Recently I was dealing with NPCs that relied on boundaries of their local level instead of the gmap and needed to know precisely where the boundaries of these levels were in relation to the gmap. So I wrote this up really quick. Figured it would be useful for others.

What it does is show the boundaries of every level on the gmap, along with the level name in each quadrant so you can know exactly what level you're in and what the adjacent levels are.

PHP Code:

//#CLIENTSIDE
const PIXEL = 1/16;
const DITHER = "iVBORw0KGgoAAAANSUhEUgAAAQAAAAEACAMAAABrrFhUAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAKT2lDQ1BQaG90b3Nob3AgSUNDIHByb2ZpbGUAAHjanVNnVFPpFj333vRCS4iAlEtvUhUIIFJCi4AUkSYqIQkQSoghodkVUcERRUUEG8igiAOOjoCMFVEsDIoK2AfkIaKOg6OIisr74Xuja9a89+bN/rXXPues852zzwfACAyWSDNRNYAMqUIeEeCDx8TG4eQuQIEKJHAAEAizZCFz/SMBAPh+PDwrIsAHvgABeNMLCADATZvAMByH/w/qQplcAYCEAcB0kThLCIAUAEB6jkKmAEB***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";
function onCreated() {
  // Load dither pattern from base64 and save it as an image
  temp.filename = "levelgrid_dither.png";
  if (!fileexists(temp.filename)) {
    temp.file = base64decode(DITHER);
    temp.file.savestring(temp.filename, 0);
  }
}

function onPlayerEnters() {
  this.ind = 200; // Initiate showimg index at 200
  hideimgs(200,300);

  if (player.gmap.name == null) return; // Only show on gmaps

  // Locations of all adjacent levels
  temp.bounds = {
    {-64,-64},{0,-64},{64,-64},
    {-64, 0 },{0, 0 },{64, 0},
    {-64, 64},{0, 64},{64, 64},
  };

  // Detect proper level name
  temp.level = player.gmap == null ? player.level : player.gmap;

  for (temp.i=0;temp.i<temp.bounds.size();temp.i++) {
    temp.px = player.x + temp.bounds[temp.i][0];
    temp.py = player.y + temp.bounds[temp.i][1];

    temp.x = int(temp.px/64)*64;
    temp.y = int(temp.py/64)*64;

    temp.lvl = level.getmappartfile(temp.x+1,temp.y+1);

    // Draw 4 dashed (white) line lines
    temp.color = {255,255,255};
    drawLine(200,{temp.x,temp.y},{temp.x+64,temp.y},PIXEL,temp.color,1);
    drawLine(201,{temp.x,temp.y},{temp.x,temp.y+64},PIXEL,temp.color,1);
    drawLine(202,{temp.x,temp.y+64-PIXEL},{temp.x+64,temp.y+64-PIXEL},PIXEL,temp.color,1);
    drawLine(203,{temp.x+64-PIXEL,temp.y},{temp.x+64-PIXEL,temp.y+64},PIXEL,temp.color,1);

    // Draw 4 dashed lines(blue) a pixel diagonally to the south-east for a shadow
    temp.x = int(temp.px/64)*64 + PIXEL;
    temp.y = int(temp.py/64)*64 + PIXEL;
    temp.color = {8,10,252};

    drawLine(204,{temp.x,temp.y},{temp.x+64,temp.y},PIXEL,temp.color,0);
    drawLine(205,{temp.x,temp.y},{temp.x,temp.y+64},PIXEL,temp.color,0);
    drawLine(206,{temp.x,temp.y+64-PIXEL},{temp.x+64,temp.y+64-PIXEL},PIXEL,temp.color,0);
    drawLine(207,{temp.x+64-PIXEL,temp.y},{temp.x+64-PIXEL,temp.y+64},PIXEL,temp.color,0);
 
    // Draw the level name in each corner of the quadrant
    temp.texts = {
      {.35     ,.15 + 32      , ""},
      {64 - .35,.15 + 32      , "r"},
      {64 - .35, 63 - .15 + 32, "r"},
      {.35     , 63 - .15 + 32, ""},
    };
    for (temp.j : temp.texts) {
      with (findimg(this.ind)) {
        text = temp.lvl;
        x = temp.x + temp.j[0];
        y = temp.y + temp.j[1];
        z = 32;
        layer = 0;
        style = temp.j[2];
        zoom = .5;
        textshadow = true;
        font = "verdana";
      }
      this.ind++;
    }
  }
}

// Drawing a single polygon line does not allow you to apply a texture
// So instead we'll adapt Chompy's drawline function from: http://forums.graalonline.com/forums/showthread.php?t=78427
// This draws a line with a thickness, and 4 points, allowing a texture to be applied
// In this case, we use the dither image we generated to create a dashed-line effect
public function drawLine(index, xy1, xy2, thickness, color, lay) {
  with(findimg(this.ind)) {
    dimension = 3;
    polygon = {
      xy1[0], xy2[1] -32, -32,
      xy2[0], xy1[1] -32, -32,
      xy2[0]+thickness, xy1[1]+thickness -32, -32,
      xy1[0]+thickness, xy2[1]+thickness -32, -32,
    };
    red = color[0]/255;
    green = color[1]/255;
    blue = color[2]/255;
    alpha = .99;

    mode = 1;
    layer = lay;

    image = "levelgrid_dither.png";
  }
  this.ind++;
}