this is godot ，非常酷
A downloadable tool for Windows, macOS, and Linux
Click to add a point. Right click to delete a point.
WASD controls, space is up, shift is down, move the mouse to control the camera.
E button to lock and unlock the camera, ESC to go to the menu.
Click download now to get access to the following files:
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This was made with Godot. I am sorry but I can only read English. All the things on my current list of programs that I put on itch.io has been made with Godot. I had seen the Godot jam but I didn't know the rules and it was not in English.
auto-drawing surfaces added to V4
Added save functionality to V3