This is "Untitled Platformer"'s prototype developed by George.
Let us compare:
George (there are crates, too):

3run:

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George:
if ((vec_dist (player.x, my.x) < 90) && (abs(my.z - player.z) < 50))
{
temp.x = (my.x - player.x) * 0.5 * time_step; // the movement speed depends on the distance between the player and the box
}
3run:
if ((vec_dist (player.x, my.x) < 55) && (abs(my.z - player.z) < 55)) {
create_m.x = (my.x - player.x) * 0.4 * time_step;
}
"Not all script is mine, I took as an examples some scripts from other users snipets, but main script was made by me. [...] You may not use any pices of script of this project!!!"
EDIT: It's okay to modify someone's work but to present it here and claim it to be your work, I don't like that.