local function doublejump(player)
	if player.mo.skin ~= "sonkick" then
		return
	end

	if (player.cmd.buttons & BT_CUSTOM1)
	and player.mo.state == S_PLAY_JUMP then
		player.mo.momz = -5000000
		player.mo.state = S_PLAY_FALL
		S_StartSound(NULL, sfx_zoom)
	end
end

addHook("PlayerThink", doublejump)