Tile Checking

[WhiteDragon]

You could just drop a

PHP Code:

join("spawn_seashells"); 


NPC in the level and then alter the shovel accordingly.



Or, you could check outwards from the point to a certain radius on the tiles.

PHP Code:

// Archimedean spiral
this.a = 1; // turns the spiral
this.b = 1; // distance between successive turns
this.thetaMax = 2 * pi; // increasing this will make it spiral out farther
this.tileRange = {0x31,0x1A4};
function polarToCartesian(temp.polarCoord) {
  return {
            temp.polarCoord[0]*cos(temp.polarCoord[1]),
            temp.polarCoord[0]*sin(temp.polarCoord[1])
           };
}
function onDig(temp.coord) { // no idea how you're doing this, but let's say onDig() get's called with {x,y} of the dig spot
  for (temp.theta = 0; temp.theta < this.thetaMax; temp.theta+= pi/16) {
    temp.normalizedCoord = polarToCartesian({this.a + this.b*temp.theta, temp.theta});
    if (tiles[temp.normalizedCoord[0]+temp.coord[0], temp.normalizedCoord[1]+temp.coord[1]] in this.tileRange) {
      this.closeToWater = true;
      break;
    }
  }
  if (this.closeToWater) {
    //woot
  }
} 


No idea if this will actually work, but the concept is there.

Probably the first way would be easier.