A heightmap implementation in Ruby.

• 'main.rb': A visualizer / toy that uses the HeightMap class
• 'heightmap.rb': The brain of the operation, this is all that is needed to use the HeightMap class with other projects.

• Pressing the spacebar will recalculate the height for all of the cells in the grid
• Hold one of the shift keys while pressing the spacebar to calculate 10 generations instead of 1
• Z to generate weak random static
• X to generate strong random static
• C to smooth the grid
• Mouse-over cells to see their height
• Left click on a cell to recalculate that cell's height
• [ to lower the contrast
• ] to raise the contrast
• F1 to save the heightmap
• F2 to load the heightmap
• F9 to save a bitmap image of the current heightmap

This work is licensed under a Creative Commons Attribution 3.0 Unported License.

Contact me if you have any questions: chase4926 (at) gmail.com