Use wsad / arrow keys to navigate through the world. Press P to preview the map while in scroll mode. While in scroll mode, press E to bring up the editing hotbar. You can select a tile from the hotbar, and click on the desired tile in world to change it. Press E again to stop editing mode. Press Demo if you don't want to tweak the world and let the project handle the creation of it. Press Advanced Demo if you want to tweak with the world. New Map : Creates a new height map. Height Levels : You can change the different heights of the terrain here. Use up or down arrow key to change values, right or left arrow key to change the terrain. Press space to change the amount the height is changed. Press P to hide the UI and preview the map, and press B to go back to advanced demo. Begin Demo: Press this when you are happy with the map and start scrolling around!
Caution: May use a lot of RAM. It may use UPTO 2GB of RAM. Thanks @stickfire-test for the diamond square algorithm : https://scratch.mit.edu/projects/137440641/ Just a little project done in my free time... Sorry if I may not be able to answer your questions in time, but I will try!
