Hello. I am making speed run assist mod.

I want player to move, and I want player to place blocks.

Please tell me the ways to do that as many as you can tell.

 

(My main language is not English. I'm sorry, if it's hard to understand my English.)

You want the player to run all the time? Or just sometimes? When and where do you want the blocks to be placed?

 

Player movement is controlled on the client side. You may want to subscribe to the PlayerTickEvent, check that you're on the client, and adjust the player's speed at that point.