if SERVER then
    hook.Add("PPhys",1,function(ply, ent, phys)
        if phys:IsValid() then
            phys:EnableGravity(false)

            ply.mousex = ply.mousex or 0
            ply.mousey = ply.mousey or 0

            if not ent.thrust_sound then
                ent.thrust_sound = CreateSound(ent, "ambient/gas/cannister_loop.wav")
                ent.thrust_sound:Play()
            end

            local dir = Vector(0,0,0)
            local eye = ent:GetAngles()
            local aim = eye:Forward()
            local side = eye:Right()
            local mult = 6

            local vol = 0

            if ply.mousex ~= 0 or ply.mousey ~= 0 then
                vol = 1
            end

            if ply:KeyDown(IN_SPEED) then
                mult = mult * 2
            end

            if ply:KeyDown(IN_FORWARD) then
                phys:AddVelocity(aim * mult)
                vol = 1
            end

            if ply:KeyDown(IN_JUMP) then
                phys:AddVelocity(eye:Up() * mult)
                vol = 1
            end

            if ply.crouching then
                phys:AddVelocity(eye:Up() * -mult)
                vol = 1
            end

            if ply:KeyDown(IN_BACK) then
                phys:AddVelocity(aim * -mult)
                vol = 1
            end

            if ply:KeyDown(IN_MOVELEFT) then
                if ply:KeyDown(IN_WALK) then
                    phys:AddAngleVelocity(Angle(-mult*0.3, 0, 0))
                else
                    phys:AddVelocity(side * -mult)
                end
                vol = 1
            end

            if ply:KeyDown(IN_MOVERIGHT) then
                if ply:KeyDown(IN_WALK) then
                    phys:AddAngleVelocity(Angle(mult*0.3, 0, 0))
                else
                    phys:AddVelocity(side * mult)
                end
                vol = 1
            end

            ent.thrust_sound:ChangeVolume(vol)
            ent.thrust_sound:ChangePitch(200)

            phys:AddAngleVelocity(Angle(0, ply.mousey*0.05, -ply.mousex*0.05))

            phys:AddVelocity(-phys:GetVelocity()*0.01)
            phys:AddAngleVelocity(-phys:GetAngleVelocity()*0.01)

            --ply:SetDSP(14)
        end
    end)

    hook.Add("Move",1,function(ply)
        if ply:HasPlayerPhysics() then
            local cmd = ply:GetCurrentCommand()

            ply.mousex = cmd:GetMouseX()
            ply.mousey = cmd:GetMouseY()
        end
    end)

    concommand.Add("+thrust_crouch", function(ply, _, args)
        ply.crouching = true
    end)

    concommand.Add("-thrust_crouch", function(ply, _, args)
        ply.crouching = false
    end)
end

if CLIENT then
    hook.Add("SetPlayerPhysics", 1, function(ply, ent)
        ply.pphys_request_duck = true
    end)

    hook.Add("CreateMove", 1, function(ucmd)
        local ply = LocalPlayer()
        if ply:HasPlayerPhysics() then
            ucmd:SetViewAngles(Angle(0,0,0))

            if ply.pphys_request_duck then
                RunConsoleCommand("+duck")
            end
        end
    end)

    hook.Add("PlayerBindPress", 1,function(ply, bind, pressed)
        if not  bind:find("duck") then return end
        if ply.pphys_request_duck then
            ply.pphys_request_duck = nil
            RunConsoleCommand("-duck")
        return end

        if ply:HasPlayerPhysics() then

            if pressed then
                RunConsoleCommand("+thrust_crouch")
            else
                RunConsoleCommand("-thrust_crouch")
            end

            print(pressed)

            return true
        end
    end)
end

if false and SERVER then
    all:SetPlayerPhysics(false)
    timer.Simple(0.2, function()
        all:SetPlayerPhysics(true)
    end)
end