simulation_2d

W, A, S, D或上，下，左，右移动，

鼠标左键选择，

鼠标右键分解，

Q键丢弃。

E键打开关闭UI.

ESC退出

W, A, S, D or up, down, left, right to move,

mouse left click to chose,

mouse right click to destruct,

Q to abandon.

E toggle open/close UI

ESC to quit

github: https://github.com/tiglapilesgame/simulation_builder