A couple character questions

addHook("ThinkFrame", do // Create a new Hook
	for player in players.iterate // For our player.
	if not player.mo return end // Don't continue if the player is a spectator.

	if (player.pflags & PF_JUMPED) // Is the player jumping?
	or player.speed == 0 // Or if the player is ready to spindash
	and player.mo.skin == "sonic" // Change the name if you want it to be for a specific character, or delete it if you want it for everyone.
		player.charability2 = CA2_NONE // Don't make him spin.
        else
                player.charability2 = CA2_SPINDASH // Let it spin if the conditions up there are not met.
		end // End the nonspin.
	end // End the "iteration"
end) // End the Hook.

//Check if a player mobj is not in some kind of special state and is ready to perform an action
local function P_PlayerActionCheck (mo)
    local player = mo.player
        if (mo.health) and (player) and (player.valid) then
            if not (player.pflags & PF_NIGHTSMODE)
            and not (player.pflags & PF_MACESPIN)
            and not (player.pflags & PF_ROPEHANG)
            and not (player.pflags & PF_ITEMHANG)
            and not (player.pflags & PF_SLIDING)
            and not (player.pflags & PF_CARRIED)
            and not (player.pflags & PF_STASIS)
            and not (player.pflags & PF_JUMPSTASIS)
            and not (player.exiting)
            and (player.powers[pw_nocontrol] == 0)
            and not ((mo.tracer) and (mo.tracer.type == MT_TUBEWAYPOINT))
            and not (P_PlayerInPain(player))
            and not ((mo.state >= S_PLAY_SUPERTRANS1) and (mo.state <= S_PLAY_SUPERTRANS9)) then
                return true
            else
                return false
            end
        end
    return false
end

//Check if a player mobj is ready to perform an action that involves pressing Spin
local function P_SpinActionCheck (mo)
    local player = mo.player
        if (mo.health) and (player) and (player.valid) then
            if (P_PlayerActionCheck(mo))
                and not ((P_IsObjectOnGround(mo) == false)
                and (((player.powers[pw_super] == 0) and (player.powers[pw_shield] == SH_JUMP))
                    or ((player.powers[pw_super]) and (player.charability == CA_FLY)))) then
                        return true
        else
            return false
        end
    end
    return false
end

//Extra character actions
addHook("ThinkFrame", do
    for player in players.iterate
         if (player.mo and player.mo.health) then
             //Sonic's actions
             if (player.mo.skin == "sonic") then
                 if (P_PlayerActionCheck(player.mo)) //If you're not hurt or disabled or anything
                 and (player.pflags & PF_JUMPED) //and you're jumping
                 and (player.panim != PA_ROLL) then //and you're not spinning
                     player.mo.state = S_PLAY_ATK1 //Start spinning, because otherwise you might not have a spinning jump animation
                 end
                 if ((P_IsObjectOnGround(player.mo)) //If you're on the ground
                     and (P_SpinActionCheck(player.mo)) //and you could start a spin(dash) if you wanted to
                     and (FixedHypot(player.rmomx, player.rmomy) > FixedMul(5*FRACUNIT, player.mo.scale))) //and you're moving fast enough to start spinning without going into a spindash
                 or (player.panim == PA_ROLL) then //...or you're spinning already
                     player.charability2 = CA2_SPINDASH //Spinning is permitted
                 else
                     player.charability2 = CA2_NONE //Spinning is not permitted
                 end
             end
         end
     end
end)

if (player.mo.skin == "sonic") then
                 if (P_PlayerActionCheck(player.mo)) //If you're not hurt or disabled or anything
                 and (player.pflags & PF_JUMPED) //and you're jumping
                 and (player.panim != PA_ROLL) then //and you're not spinning
                     player.mo.state = S_PLAY_ATK1 //Start spinning, because otherwise you might not have a spinning jump animation
                 end

addHook("ThinkFrame", do
	for player in players.iterate
		if player.mo and not player.spectator
		and (player.charability == CA_SWIM)
			player.charflags = $1 & ~(SF_RUNONWATER)
		end
	end
end)

addHook("ThinkFrame", do
	for player in players.iterate
		if (player.mo and player.mo.skin == "tails")
			if player.mo.eflags & MFE_UNDERWATER
				player.charability = CA_SWIM
			elseif player.charability == CA_SWIM
				player.charability = CA_NONE
			end
		end
	end
end)