Sand table
A contour survey of ground that isn’t finished. Press to raise a hill, dig it out again, let the sea in.
Press and hold on the map. Shift digs without switching. Heights are in pretend metres.
How it works
The ground is a grid of heights: seeded noise, plus whatever you pile on it. The contours are traced over that grid at a fixed interval, the way a real map does it, so a hill gains rings as it grows instead of stretching the ones it has. Every fifth line is heavier.
The sea is one slider. Everything under it is hatched and the shoreline is drawn once, heavy. The highest point on the map gets the second pen’s ring and a spot height.
- Input
- Press and hold; Shift digs; a slider for the sea
- Drawn with
- One canvas, marching squares on a 6 px grid
- Work
- One pass over 7,500 cells while the ground moves
- Reduced motion
- A raised hill arrives whole
Made for the fun of it. The paid work gets the same pen.