local turret = piece "sstowgab"
local turret2= piece "sstower"
local flare = piece "sscflare"
--define other pieces
local sstowf = piece "sstowf"
local sstowf2 = piece "sstowf2"
local body = piece "csniper"
local cwheel1 = piece "sswheel"
local cwheel2 = piece "sswheel2"
local cwheel3 = piece "sswheel3"
local cwheel3 = piece "sswheel4"
local SIG_UNFOLD=8
local SIG_FOLD=4
local SIG_AIM=2
local SIG_SPAM=16
local boolStillAiming=false
local boolFireLock=true
local spamfilterSTART=true
local spamfilterSTOP=false

local boolFilterActive=false

local function spamFilter()
    SetSignalMask(SIG_SPAM)


    while (true) do

            if spamfilterSTART==true and spamfilterSTOP==false then
                    for it=0,3,1
                    do
                    Sleep(64)
                        if spamfilterSTOP==true then
                        spamfilterSTART=false
                        break
                        end
                    end
                    if spamfilterSTART==true then
                    --if spamfilterSTART is still ==true then
                    Signal(SIG_FOLD)
                    Signal(SIG_UNFOLD)
                    StartThread(fold)
                    end

            end

            if spamfilterSTOP==true and spamfilterSTART==false then
                    for it=0,3,1
                    do
                    Sleep(64)
                        if spamfilterSTART==true then
                        spamfilterSTOP=false
                        break
                        end
                    end
                    if spamfilterSTOP==true then
                    --if spamfilterSTOP is still ==true then
                    Signal(SIG_FOLD)
                    Signal(SIG_UNFOLD)
                    StartThread(unfold)
                    end

            end

            if spamfilterSTOP==false and spamfilterSTART==false then

            Spring.Echo("No idea what you did, but you broke it. You gonna pay!")

            end

    end
end




local function fold()

Signal(SIG_UNFOLD)
SetSignalMask(SIG_FOLD)
    Turn(turret,x_axis,math.rad(0),1.2)
    Sleep(150)
    Turn(turret, x_axis,math.rad(0),1.85)
    Turn(turret2, x_axis,math.rad(0),1.85)
    Turn(sstowf2,y_axis,math.rad(180),4)
    WaitForTurn(sstowf2,y_axis)
    WaitForTurn(turret2, x_axis)
    Move(sstowf,y_axis, -65,6)
    WaitForMove(sstowf,y_axis)
    Sleep(50)
    Hide(sstowf)
    Hide(sstowf)
    boolFireLock=true

        while(true) do
        Sleep(1024)
        end
end

local function unfold()

Signal(SIG_FOLD)

SetSignalMask(SIG_UNFOLD)
    Show(sstowf)
    Show(sstowf)
    turner=math.random(-2,2)
    Turn(turret,x_axis,math.rad(turner),1)
    WaitForTurn(turret,x_axis)
    Move(sstowf,y_axis, 0,5)
    WaitForMove(sstowf,y_axis)
    boolFireLock=false
        while(true) do

        Sleep(1024)

        end


end

function script.AimWeapon1(heading ,pitch)
    Signal(SIG_AIM)
    SetSignalMask(SIG_AIM)

                if boolFireLock==true then
                return false
                end


    if boolFireLock==false then
    boolStillAiming=true
    --aiming animation: instantly turn the gun towards the enemy
    Turn(sstowf, y_axis, heading,0.85)
    Turn(turret2, x_axis, -pitch,0.55)
    WaitForTurn(sstowf,y_axis)
    WaitForTurn(turret2,x_axis)
    return true
    end

end

function script.AimFromWeapon1()
    return turret2
end

function script.QueryWeapon1()
    return flare
end

function script.FireWeapon1()
    boolStillAiming=false
    return true
end


function script.Create()
Hide(flare)
Signal(SIG_SPAM)
end

function script.Killed()
    Signal(SIG_SPAM)
    Signal(SIG_FOLD)
    Signal(SIG_UNFOLD)

     flipFlop=math.random(0,1)

     if flipFlop==1 then
    Turn(sstowf2,x_axis,math.rad(35),2)
    WaitForTurn(sstowf2,x_axis)
    Turn(sstowf2,x_axis,math.rad(78),6)
    WaitForTurn(sstowf2,x_axis)
    Turn(sstowf2,x_axis,math.rad(92),9)
    WaitForTurn(sstowf2,x_axis)
    Sleep(250)
    Explode (cwheel1, SFX.FIRE)
    Explode (cwheel2, SFX.FIRE)
    Explode (cwheel3, SFX.FIRE)
    Explode (cwheel3, SFX.FIRE)
    Explode (turret2, SFX.SMOKE)
    Explode (body, SFX.FIRE + SFX.SMOKE)
    end

     if flipFlop==0 then
     Turn(body,z_axis,math.rad(35),2)
        WaitForTurn(body,z_axis)
        Turn(body,z_axis,math.rad(78),6)
        WaitForTurn(body,z_axis)
        Turn(body,z_axis,math.rad(93),9)
        WaitForTurn(body,z_axis)
         Turn(body,z_axis,math.rad(85),6)
        WaitForTurn(body,z_axis)

        Turn(body,z_axis,math.rad(93),9)
        WaitForTurn(body,z_axis)
        Sleep(250)
        Explode (cwheel1, SFX.FIRE)
        Explode (cwheel2, SFX.FIRE)
        Explode (cwheel3, SFX.FIRE)
        Explode (cwheel3, SFX.FIRE)
        Explode (turret2, SFX.SMOKE)
        Explode (body, SFX.FIRE  + SFX.SMOKE)


     end



end

function script.StartMoving()
if boolFilterActive==false then
Signal(SIG_SPAM)
StartThread(spamFilter)
boolFilterActive=true
end

spamfilterSTOP=false
spamfilterSTART=true

end

function script.StopMoving()
--    Spring.Echo ("stopped walking!")
spamfilterSTART=false
spamfilterSTOP=true
end