addHook("PlayerThink", function(player) -- runs once per player each frame
	if player.groundtimer == nil then
		player.groundtimer = 1*TICRATE/10
	end 
	
	if player.airwalk == nil then
		player.airwalk = 0*TICRATE
	end
	
	if player.airwalked == nil then
		player.airwalked = false
	end
	
	if player.willtakedamage == nil then
		player.willtakedamage = false
	end
	
	if player.shouldntairwalk == nil then
		player.shouldntairwalk = false
	end
	
	if player.falling == nil then
		player.falling = false
	end
	
	if (P_IsObjectOnGround(player.mo) == true) then
	player.groundtimer = 1*TICRATE/10
	end
	
	if (P_IsObjectOnGround(player.mo) == false)
	and player.groundtimer > 0
	and not (player.pflags & PF_JUMPED) then
	player.airwalk = 1*TICRATE
	end
	
	if player.groundtimer > 0 then
	player.groundtimer = $ - 1
	end
	
	if (P_IsObjectOnGround(player.mo) == true) then
	player.airwalk = 0*TICRATE
	player.airwalked = false
	player.shouldntairwalk = false
	player.falling = false
	end
	
	if (P_IsObjectOnGround(player.mo) == false) then
	player.airwalk = $ - 1
	end
	
	if player.airwalk > 0
	and player.mo.z/FRACUNIT - player.mo.floorz/FRACUNIT > 128 then
	player.airwalked = true
	player.mo.state = S_PLAY_RUN
	P_Thrust(player.mo, player.mo.angle, 1*FRACUNIT/2 + 1*FRACUNIT/8)
	player.mo.momz = 0
	end
	
	if player.mo.z/FRACUNIT - player.mo.floorz/FRACUNIT < 128
	and not (player.pflags & PF_JUMPED)
	and not (player.pflags & PF_THOKKED)
	and player.airwalked == false
	and (P_IsObjectOnGround(player.mo) == false) then
	player.shouldntairwalk = true
	player.airwalk = -1*TICRATE
	end
	
	if player.mo.z/FRACUNIT - player.mo.floorz/FRACUNIT < 128
	and (player.pflags & PF_JUMPED)
	and (P_IsObjectOnGround(player.mo) == false) then
	player.mo.state = S_PLAY_JUMP
	player.airwalk = -1*TICRATE
	end
	
	if player.airwalk < 0
	and not (player.pflags & PF_JUMPED)
	and not (player.pflags & PF_THOKKED)
	and player.shouldntairwalk == false
	and player.falling == false then
	player.mo.momz = 10*FRACUNIT
	player.falling = true
	player.mo.state = S_PLAY_DEAD
	S_StartSound(player.mo, sfx_s3k51)
	end
	
	if player.falling == true then
	player.mo.momz = $ - 1*FRACUNIT/2
	end
	
	if player.falling == true
	and player.mo.momz < -25*FRACUNIT then
	player.willtakedamage = true
	end
	
	if player.willtakedamage == true
	and player.mo.momz > 0 then
	player.willtakedamage = false
	end
	
	if player.willtakedamage == true
	and (P_IsObjectOnGround(player.mo) == true) then
	P_DamageMobj(player.mo)
	S_StartSound(player.mo, sfx_doord2)
	player.willtakedamage = false
	player.mo.momz = -1*FRACUNIT
	end
	
	if player.playerstate == PST_DEAD then
	player.mo.state = S_PLAY_DEAD
	end
end)