Implement hoverpack

README.md

@@ -16,6 +16,7 @@ Player controls:
 - Chat `!points`: print personal Score, Credits, and rank
 - Chat `!musicmute` or client console `coop_music_mute`: toggle purchased server music locally
 - Client console `coop_music_volume 0.0` through `coop_music_volume 1.0`: set music volume
+- With Hoverpack enabled, jump normally and continue holding `Space` to hover
 - Hold `TAB`: compare all connected players' Lifetime Scores and ranks
 
 The shop contains persistent Half-Life 2 player models and permanent bonus
@@ -29,6 +30,17 @@ Music entries may set `spatial = true` plus `minimumDistance` and
 and fades over distance. Supply spatial audio as 44.1 kHz mono MP3 or WAV for
 reliable in-game positioning.
 
+The Behaviours category contains persistent, toggleable player abilities. The
+Hoverpack costs 500 Credits by default and is enabled immediately after buying
+it. A short Space press remains a normal jump; holding Space for 0.3 seconds in
+the air maintains altitude and rises slowly. Releasing Space stops thrust and
+restores normal gravity. Pressing and holding Space again can restart thrust
+while still airborne. Thrust consumes the standard AUX power meter and stops at
+zero. After a 1.25-second pause with Space released, AUX recharges while waiting
+and recharges faster while walking; active sprinting does not receive the extra
+hoverpack recharge. Its built-in looping thruster sound follows the player and
+is audible to nearby players.
+
 The server checks all kills, balances, live prices, ownership, equipment, and
 music playback. A purchase request contains only the item type and ID: clients
 cannot award points, submit a purchase price, or debit their own Credits.
@@ -42,7 +54,7 @@ their current non-negative value. Set `Progression.AdminShopTestingBypass` to
 `false` to disable this behavior.
 The equivalent server/admin console command is:
 
-`coop_setprice <model|weapon|music> <item_id> <credits>`
+`coop_setprice <model|weapon|music|behaviour> <item_id> <credits>`
 
 For example: `coop_setprice music song_id 500`. The maximum accepted price is
 100,000,000 Credits. Existing owners retain their unlocks when a price changes.
@@ -53,6 +65,9 @@ Configuration is in `gamemode/progression_shared.lua`:
 - `Progression.Models`: player-model catalogue and prices
 - `Progression.Weapons`: bonus-weapon catalogue and prices
 - `Progression.Music`: music catalogue, default prices, paths, and durations
+- `Progression.Behaviours`: toggleable ability catalogue and default prices
+- `Progression.Hoverpack*`: hover delay, rise speed, AUX drain/recharge rates,
+  and thruster sound settings
 - `Progression.MonsterClasses`: NPC classes that award points
 
 Catalogue prices are initial defaults. Once seeded, live prices come from the

gamemode/cl_progression.lua

@@ -11,6 +11,8 @@ local shopState = {
     ownedModels = {},
     ownedWeapons = {},
     ownedMusic = {},
+    ownedBehaviours = {},
+    enabledBehaviours = {},
     prices = {},
     isAdmin = false
 }
@@ -106,11 +108,14 @@ local function AddItemCard(layout, itemType, item)
     local isModel = itemType == "model"
     local isWeapon = itemType == "weapon"
     local isMusic = itemType == "music"
+    local isBehaviour = itemType == "behaviour"
     local owned = isModel and shopState.ownedModels[item.id]
         or isWeapon and shopState.ownedWeapons[item.id]
         or isMusic and shopState.ownedMusic[item.id]
-    local equipped = isModel and shopState.equippedModel == item.id
+        or isBehaviour and shopState.ownedBehaviours[item.id]
+    local selected = isModel and shopState.equippedModel == item.id
         or isWeapon and shopState.equippedWeapon == item.id
+        or isBehaviour and shopState.enabledBehaviours[item.id]
     local currentPrice = CurrentPrice(itemType, item)
 
     local card = layout:Add("DPanel")
@@ -118,7 +123,7 @@ local function AddItemCard(layout, itemType, item)
     card.Paint = function(self, width, height)
         local color = self:IsHovered() and colors.panelHover or colors.panel
         draw.RoundedBox(8, 0, 0, width, height, color)
-        if equipped then
+        if selected then
             surface.SetDrawColor(colors.success)
             surface.DrawOutlinedRect(0, 0, width, height, 2)
         end
@@ -149,7 +154,10 @@ local function AddItemCard(layout, itemType, item)
             if IsValid(entity) then entity:SetAngles(Angle(0, RealTime() * 18 % 360, 0)) end
         end
     else
-        local previewText = isMusic and "SERVER MUSIC" or isWeapon and "MAP LOADOUT" or "NO PREVIEW"
+        local previewText = isMusic and "SERVER MUSIC"
+            or isBehaviour and "PLAYER ABILITY"
+            or isWeapon and "MAP LOADOUT"
+            or "NO PREVIEW"
         local noPreview = AddText(card, previewText, "CustomCoopProgressionHeading", colors.muted)
         noPreview:SetContentAlignment(5)
         noPreview:SetPos(8, 8)
@@ -176,18 +184,20 @@ local function AddItemCard(layout, itemType, item)
     local actionText
     if isMusic then
         actionText = (owned or currentPrice == 0) and "Play" or "Buy"
+    elseif isBehaviour then
+        actionText = owned and (selected and "Disable" or "Enable") or "Buy & Enable"
     else
-        actionText = equipped and "Equipped" or (owned or currentPrice == 0) and "Equip" or "Buy"
+        actionText = selected and "Equipped" or (owned or currentPrice == 0) and "Equip" or "Buy"
     end
     button:SetText(actionText)
-    button:SetEnabled(not equipped)
+    button:SetEnabled(isBehaviour or not selected)
     button.DoClick = function()
         button:SetEnabled(false)
         button:SetText("Please wait...")
         SelectItem(itemType, item.id)
         timer.Simple(1, function()
             if IsValid(button) then
-                button:SetEnabled(not equipped)
+                button:SetEnabled(isBehaviour or not selected)
                 button:SetText(actionText)
             end
         end)
@@ -273,7 +283,8 @@ local function CreateAdminPage(sheet)
     for _, catalogue in ipairs({
         { itemType = "model", items = Progression.Models },
         { itemType = "weapon", items = Progression.Weapons },
-        { itemType = "music", items = Progression.Music }
+        { itemType = "music", items = Progression.Music },
+        { itemType = "behaviour", items = Progression.Behaviours }
     }) do
         for _, item in ipairs(catalogue.items) do
             local row = list:AddLine(catalogue.itemType, item.id, item.name, CurrentPrice(catalogue.itemType, item))
@@ -343,6 +354,7 @@ local function OpenShop()
     CreateCataloguePage(sheet, "Player Models", "model", Progression.Models)
     CreateCataloguePage(sheet, "Bonus Weapons", "weapon", Progression.Weapons)
     CreateCataloguePage(sheet, "Music", "music", Progression.Music)
+    CreateCataloguePage(sheet, "Behaviours", "behaviour", Progression.Behaviours)
     if shopState.isAdmin then CreateAdminPage(sheet) end
 end
 
@@ -364,6 +376,8 @@ net.Receive("CustomCoopProgressionOpenShop", function()
     shopState.ownedModels = { [Progression.DefaultModelID] = true }
     shopState.ownedWeapons = { [Progression.DefaultWeaponID] = true }
     shopState.ownedMusic = {}
+    shopState.ownedBehaviours = {}
+    shopState.enabledBehaviours = {}
 
     for _ = 1, net.ReadUInt(8) do
         local itemType = net.ReadString()
@@ -374,9 +388,14 @@ net.Receive("CustomCoopProgressionOpenShop", function()
             shopState.ownedWeapons[itemID] = true
         elseif itemType == "music" then
             shopState.ownedMusic[itemID] = true
+        elseif itemType == "behaviour" then
+            shopState.ownedBehaviours[itemID] = true
         end
     end
 
+    for _ = 1, net.ReadUInt(8) do
+        shopState.enabledBehaviours[net.ReadString()] = true
+    end
 
     shopState.isAdmin = net.ReadBool()
     shopState.prices = ReadShopPrices()
@@ -503,14 +522,27 @@ hook.Add("HUDPaint", "CustomCoopProgressionHUD", function()
 
     local credits = ply:GetNW2Int("CustomCoopCredits", 0)
     local rank = ply:GetNW2String("CustomCoopRank", Progression.GetRank(score))
-    local width, height = 288, 66
+    local hoverpackEnabled = ply:GetNW2Bool("CustomCoopHoverpackEnabled", false)
+    local hoverpackThrusting = ply:GetNW2Bool("CustomCoopHoverpackThrusting", false)
+    local width, height = 288, hoverpackEnabled and 90 or 66
     local x, y = ScrW() - width - 18, 18
 
     draw.RoundedBox(8, x, y, width, height, colors.background)
     draw.SimpleText(rank, "CustomCoopProgressionHeading", x + 12, y + 9, colors.accent)
+    draw.SimpleText("Press F3 for Shop", "CustomCoopProgressionSmall", x + width - 12, y + 13,
+        colors.muted, TEXT_ALIGN_RIGHT)
     draw.SimpleText("Score " .. score, "CustomCoopProgressionBody", x + 12, y + 37, colors.text)
     draw.SimpleText("Credits " .. credits, "CustomCoopProgressionBody", x + 151, y + 37, colors.text)
 
+    if hoverpackEnabled then
+        local suitPower = ply.GetSuitPower and math.Round(ply:GetSuitPower()) or 100
+        local status = hoverpackThrusting and ("THRUSTING — AUX " .. suitPower .. "%")
+            or suitPower <= 0 and "EMPTY — release Space to recharge"
+            or ("READY — AUX " .. suitPower .. "%")
+        draw.SimpleText("Hoverpack: " .. status, "CustomCoopProgressionSmall", x + 12, y + 64,
+            hoverpackThrusting and colors.success or colors.muted)
+    end
+
     if CurTime() < gainExpires then
         draw.SimpleText("+" .. gainedScore, "CustomCoopProgressionHeading", x - 10, y + height / 2, colors.success, TEXT_ALIGN_RIGHT, TEXT_ALIGN_CENTER)
     end

gamemode/progression_shared.lua

@@ -12,6 +12,15 @@ Progression.DefaultWeaponID = "none"
 Progression.MaximumShopPrice = 100000000
 Progression.MusicCooldownPadding = 10
 Progression.AdminShopTestingBypass = true
+Progression.HoverpackHoldDelay = 0.3
+Progression.HoverpackRiseSpeed = 24
+Progression.HoverpackDrainPerSecond = 16
+Progression.HoverpackRechargeDelay = 1.25
+Progression.HoverpackRechargePerSecond = 14
+Progression.HoverpackWalkingRechargePerSecond = 22
+Progression.HoverpackSound = "PhysicsCannister.ThrusterLoop"
+Progression.HoverpackSoundVolume = 0.55
+Progression.HoverpackSoundPitch = 115
 
 Progression.Ranks = {
     { score = 0, name = "Newbie" },
@@ -162,6 +171,15 @@ Progression.Music = {
     }
 }
 
+Progression.Behaviours = {
+    {
+        id = "hoverpack",
+        name = "Hoverpack",
+        price = 500,
+        description = "Hold Space after jumping to hover and rise slowly. Toggle this behaviour on or off."
+    }
+}
+
 -- Only these combat NPC classes award points. Keeping an allow-list avoids
 -- rewards for friendly citizens, scripted targets and manually invented entity
 -- classes. Add a class here if a future coop map uses another real monster.
@@ -238,6 +256,10 @@ function Progression.GetMusic(id)
     return FindByID(Progression.Music, id)
 end
 
+function Progression.GetBehaviour(id)
+    return FindByID(Progression.Behaviours, id)
+end
+
 function Progression.GetRank(score)
     local result = Progression.Ranks[1].name
     score = math.max(tonumber(score) or 0, 0)
@@ -249,3 +271,51 @@ function Progression.GetRank(score)
 
     return result
 end
+
+local function SetHoverpackThrusting(ply, thrusting)
+    if SERVER and Progression.SetHoverpackThrusting then
+        Progression.SetHoverpackThrusting(ply, thrusting)
+    end
+end
+
+hook.Add("SetupMove", "CustomCoopProgressionHoverpack", function(ply, moveData)
+    local jumpHeld = moveData:KeyDown(IN_JUMP)
+    local suitPower = ply.GetSuitPower and ply:GetSuitPower() or 100
+    local canHover = ply:GetNW2Bool("CustomCoopHoverpackEnabled", false)
+        and ply:Alive()
+        and ply:GetMoveType() == MOVETYPE_WALK
+        and ply:WaterLevel() < 2
+        and not ply:InVehicle()
+        and suitPower > 0.01
+
+    if not jumpHeld or not canHover then
+        ply.CustomCoopHoverHoldStarted = nil
+        ply.CustomCoopHoverJumpWasHeld = false
+        SetHoverpackThrusting(ply, false)
+        return
+    end
+
+    if not ply.CustomCoopHoverJumpWasHeld then
+        ply.CustomCoopHoverHoldStarted = CurTime()
+    end
+    ply.CustomCoopHoverJumpWasHeld = true
+
+    -- Continually reset while grounded. A normal jump therefore happens first,
+    -- and hovering only starts after Space remains held in the air.
+    if ply:OnGround() then
+        ply.CustomCoopHoverHoldStarted = CurTime()
+        SetHoverpackThrusting(ply, false)
+        return
+    end
+
+    ply.CustomCoopHoverHoldStarted = ply.CustomCoopHoverHoldStarted or CurTime()
+    if CurTime() - ply.CustomCoopHoverHoldStarted < Progression.HoverpackHoldDelay then
+        SetHoverpackThrusting(ply, false)
+        return
+    end
+
+    local velocity = moveData:GetVelocity()
+    velocity.z = Progression.HoverpackRiseSpeed
+    moveData:SetVelocity(velocity)
+    SetHoverpackThrusting(ply, true)
+end)

gamemode/sv_progression.lua

@@ -78,6 +78,14 @@ local function CreateTables()
             PRIMARY KEY (item_type, item_id)
         )
     ]], "could not create shop price table")
+
+    Query([[
+        CREATE TABLE IF NOT EXISTS custom_coop_enabled_behaviours (
+            steamid64 TEXT NOT NULL,
+            item_id TEXT NOT NULL,
+            PRIMARY KEY (steamid64, item_id)
+        )
+    ]], "could not create enabled behaviour table")
 end
 
 CreateTables()
@@ -85,7 +93,8 @@ CreateTables()
 local catalogues = {
     { itemType = "model", items = Progression.Models },
     { itemType = "weapon", items = Progression.Weapons },
-    { itemType = "music", items = Progression.Music }
+    { itemType = "music", items = Progression.Music },
+    { itemType = "behaviour", items = Progression.Behaviours }
 }
 
 for _, item in ipairs(Progression.Music) do
@@ -112,6 +121,7 @@ local function GetCatalogueItem(itemType, itemID)
     if itemType == "model" then return Progression.GetModel(itemID) end
     if itemType == "weapon" then return Progression.GetWeapon(itemID) end
     if itemType == "music" then return Progression.GetMusic(itemID) end
+    if itemType == "behaviour" then return Progression.GetBehaviour(itemID) end
 end
 
 local function GetShopPrice(itemType, item)
@@ -172,6 +182,9 @@ local function EmptyState()
         ownedModels = { [Progression.DefaultModelID] = true },
         ownedWeapons = { [Progression.DefaultWeaponID] = true },
         ownedMusic = {},
+        ownedBehaviours = {},
+        enabledBehaviours = {},
+        behavioursDirty = false,
         pendingOwnedItems = {},
         profileDirty = false
     }
@@ -183,6 +196,11 @@ local function SyncPlayer(ply, state)
     ply:SetNW2Int("CustomCoopScore", state.score)
     ply:SetNW2Int("CustomCoopCredits", state.credits)
     ply:SetNW2String("CustomCoopRank", Progression.GetRank(state.score))
+    ply:SetNW2Bool("CustomCoopHoverpackEnabled", state.enabledBehaviours.hoverpack == true)
+    if state.enabledBehaviours.hoverpack and ply.EquipSuit
+        and (not ply.IsSuitEquipped or not ply:IsSuitEquipped()) then
+        ply:EquipSuit()
+    end
 end
 
 local function LoadPlayer(ply)
@@ -232,6 +250,20 @@ local function LoadPlayer(ply)
                 state.ownedWeapons[owned.item_id] = true
             elseif owned.item_type == "music" and Progression.GetMusic(owned.item_id) then
                 state.ownedMusic[owned.item_id] = true
+            elseif owned.item_type == "behaviour" and Progression.GetBehaviour(owned.item_id) then
+                state.ownedBehaviours[owned.item_id] = true
+            end
+        end
+    end
+
+    local enabledRows = Query(
+        "SELECT item_id FROM custom_coop_enabled_behaviours WHERE steamid64 = " .. SQLString(steamID64),
+        "could not load enabled behaviours"
+    )
+    if istable(enabledRows) then
+        for _, enabled in ipairs(enabledRows) do
+            if state.ownedBehaviours[enabled.item_id] and Progression.GetBehaviour(enabled.item_id) then
+                state.enabledBehaviours[enabled.item_id] = true
             end
         end
     end
@@ -262,7 +294,7 @@ local function SavePlayerState(ply, state)
     if not state then return true end
 
     local hasPendingOwnership = next(state.pendingOwnedItems) ~= nil
-    if not state.profileDirty and not hasPendingOwnership then return true end
+    if not state.profileDirty and not hasPendingOwnership and not state.behavioursDirty then return true end
 
     local steamID64 = state.steamID64
     if not steamID64 or steamID64 == "" then return false end
@@ -301,6 +333,23 @@ local function SavePlayerState(ply, state)
         end
     end
 
+    if result ~= false and state.behavioursDirty then
+        result = Query(
+            "DELETE FROM custom_coop_enabled_behaviours WHERE steamid64 = " .. SQLString(steamID64),
+            "could not clear enabled behaviours"
+        )
+
+        if result ~= false then
+            for itemID in pairs(state.enabledBehaviours) do
+                result = Query(string.format(
+                    "INSERT INTO custom_coop_enabled_behaviours (steamid64, item_id) VALUES (%s, %s)",
+                    SQLString(steamID64), SQLString(itemID)
+                ), "could not save enabled behaviour")
+                if result == false then break end
+            end
+        end
+    end
+
     if result == false then
         sql.Query("ROLLBACK")
         return false
@@ -317,6 +366,7 @@ local function SavePlayerState(ply, state)
     end
 
     state.profileDirty = false
+    state.behavioursDirty = false
     table.Empty(state.pendingOwnedItems)
     return true
 end
@@ -427,6 +477,70 @@ local function ApplyWeapon(ply, previousWeaponID)
     ply.CustomCoopGrantedWeapon = item.weaponClass
 end
 
+function Progression.SetHoverpackThrusting(ply, thrusting)
+    if not IsValid(ply) then return end
+
+    thrusting = thrusting == true
+        and ply:GetNW2Bool("CustomCoopHoverpackEnabled", false)
+        and ply:Alive()
+        and (not ply.GetSuitPower or ply:GetSuitPower() > 0.01)
+
+    if ply:GetNW2Bool("CustomCoopHoverpackThrusting", false) == thrusting then return end
+    ply:SetNW2Bool("CustomCoopHoverpackThrusting", thrusting)
+
+    if ply.CustomCoopHoverpackSound then
+        ply.CustomCoopHoverpackSound:Stop()
+        ply.CustomCoopHoverpackSound = nil
+    end
+
+    if thrusting then
+        ply.CustomCoopHoverpackLastThrust = CurTime()
+        local soundPatch = CreateSound(ply, Progression.HoverpackSound)
+        if soundPatch then
+            ply.CustomCoopHoverpackSound = soundPatch
+            soundPatch:PlayEx(Progression.HoverpackSoundVolume, Progression.HoverpackSoundPitch)
+        end
+    end
+end
+
+hook.Add("Think", "CustomCoopProgressionHoverpackPower", function()
+    local now = CurTime()
+
+    for _, ply in ipairs(player.GetAll()) do
+        local previousUpdate = ply.CustomCoopHoverpackPowerUpdated or now
+        local elapsed = math.Clamp(now - previousUpdate, 0, 0.25)
+        ply.CustomCoopHoverpackPowerUpdated = now
+
+        if elapsed > 0 and ply:GetNW2Bool("CustomCoopHoverpackEnabled", false)
+            and ply.GetSuitPower and ply.SetSuitPower then
+            local power = math.Clamp(ply:GetSuitPower(), 0, 100)
+            local thrusting = ply:GetNW2Bool("CustomCoopHoverpackThrusting", false)
+            local newPower = power
+
+            if thrusting then
+                ply.CustomCoopHoverpackLastThrust = now
+                newPower = math.max(power - Progression.HoverpackDrainPerSecond * elapsed, 0)
+                if newPower <= 0 then Progression.SetHoverpackThrusting(ply, false) end
+            else
+                local lastThrust = ply.CustomCoopHoverpackLastThrust or 0
+                local sprinting = ply:KeyDown(IN_SPEED) and ply:GetVelocity():Length2D() > ply:GetWalkSpeed()
+                local releasedJump = not ply:KeyDown(IN_JUMP)
+
+                if releasedJump and not sprinting
+                    and now - lastThrust >= Progression.HoverpackRechargeDelay then
+                    local walking = ply:OnGround() and ply:GetVelocity():Length2D() > 20
+                    local rechargeRate = walking
+                        and Progression.HoverpackWalkingRechargePerSecond
+                        or Progression.HoverpackRechargePerSecond
+                    newPower = math.min(power + rechargeRate * elapsed, 100)
+                end
+            end
+
+            if math.abs(newPower - power) >= 0.001 then ply:SetSuitPower(newPower) end
+        end
+    end
+end)
+
 local function SendShop(ply)
     local state = GetState(ply)
     if not state then return end
@@ -441,6 +555,9 @@ local function SendShop(ply)
     for id in pairs(state.ownedMusic) do
         owned[#owned + 1] = { itemType = "music", id = id }
     end
+    for id in pairs(state.ownedBehaviours) do
+        owned[#owned + 1] = { itemType = "behaviour", id = id }
+    end
 
     net.Start("CustomCoopProgressionOpenShop")
         net.WriteUInt(math.min(state.score, 4294967295), 32)
@@ -452,6 +569,14 @@ local function SendShop(ply)
             net.WriteString(owned[index].itemType)
             net.WriteString(owned[index].id)
         end
+        local enabledBehaviours = {}
+        for id in pairs(state.enabledBehaviours) do
+            enabledBehaviours[#enabledBehaviours + 1] = id
+        end
+        net.WriteUInt(math.min(#enabledBehaviours, 255), 8)
+        for index = 1, math.min(#enabledBehaviours, 255) do
+            net.WriteString(enabledBehaviours[index])
+        end
         net.WriteBool(ply:IsAdmin())
         WriteShopPrices()
     net.Send(ply)
@@ -551,7 +676,8 @@ local function PurchaseOrEquip(ply, itemType, itemID)
 
     local ownedItems = itemType == "model" and state.ownedModels
         or itemType == "weapon" and state.ownedWeapons
-        or state.ownedMusic
+        or itemType == "music" and state.ownedMusic
+        or state.ownedBehaviours
     local price = GetShopPrice(itemType, item)
     local alreadyOwned = ownedItems[itemID] == true
     local previousWeaponID = state.equippedWeapon
@@ -563,6 +689,17 @@ local function PurchaseOrEquip(ply, itemType, itemID)
         return
     end
 
+    if itemType == "behaviour" and alreadyOwned then
+        local enabled = state.enabledBehaviours[itemID] ~= true
+        state.enabledBehaviours[itemID] = enabled or nil
+        state.behavioursDirty = true
+        SyncPlayer(ply, state)
+        if not enabled then Progression.SetHoverpackThrusting(ply, false) end
+        SendNotice(ply, true, item.name .. (enabled and " enabled." or " disabled."))
+        SendShop(ply)
+        return
+    end
+
     if not alreadyOwned then
         if state.credits < price then
             adminCreditBypass = Progression.AdminShopTestingBypass and ply:IsAdmin()
@@ -598,6 +735,17 @@ local function PurchaseOrEquip(ply, itemType, itemID)
         return
     end
 
+
+    if itemType == "behaviour" then
+        state.enabledBehaviours[itemID] = true
+        state.behavioursDirty = true
+        SyncPlayer(ply, state)
+        local action = adminCreditBypass and "Admin test-unlocked and enabled " or "Purchased and enabled "
+        SendNotice(ply, true, action .. item.name .. ".")
+        SendShop(ply)
+        return
+    end
+
     if itemType == "model" then
         state.equippedModel = itemID
         ApplyModel(ply)
@@ -674,7 +822,8 @@ hook.Add("PlayerInitialSpawn", "CustomCoopProgressionLoad", function(ply)
     timer.Simple(4, function()
         if not IsValid(ply) then return end
         ply:ChatPrint("[CO-OP] Kill monsters to earn Score and Credits. Your lifetime Score determines your rank.")
-        ply:ChatPrint("[CO-OP] Press F3 or type !shop to buy permanent models, bonus weapons, and server music.")
+        ply:ChatPrint("[CO-OP] Press F3 or type !shop to buy models, weapons, music, and toggleable behaviours.")
+        ply:ChatPrint("[CO-OP] Enable the Hoverpack in Behaviours, then hold Space after jumping to hover.")
         ply:ChatPrint("[CO-OP] Bought music plays for everyone. Type !musicmute if you do not want to hear it.")
         ply:ChatPrint("[CO-OP] Dying costs up to " .. Progression.DeathCreditCost .. " Credits, but never reduces Score or rank.")
         ply:ChatPrint("[CO-OP] Type !points for your totals. Hold TAB to compare lifetime scores.")
@@ -682,8 +831,9 @@ hook.Add("PlayerInitialSpawn", "CustomCoopProgressionLoad", function(ply)
 end)
 
 hook.Add("PlayerDisconnected", "CustomCoopProgressionForget", function(ply)
+    Progression.SetHoverpackThrusting(ply, false)
     local state = playerStates[ply]
-    if state and (state.profileDirty or next(state.pendingOwnedItems) ~= nil) then
+    if state and (state.profileDirty or state.behavioursDirty or next(state.pendingOwnedItems) ~= nil) then
         disconnectedStates[state.steamID64] = state
     end
 
@@ -705,6 +855,7 @@ hook.Add("PlayerSetModel", "CustomCoopProgressionApplyModel", function(ply)
 end)
 
 hook.Add("PlayerSpawn", "CustomCoopProgressionApplyLoadout", function(ply)
+    Progression.SetHoverpackThrusting(ply, false)
     ply.CustomCoopGrantedWeapon = nil
 
     timer.Simple(0.5, function()
@@ -738,6 +889,7 @@ end)
 
 hook.Add("PlayerDeath", "CustomCoopProgressionDeathPenalty", function(victim)
     if not IsValid(victim) or victim:IsBot() then return end
+    Progression.SetHoverpackThrusting(victim, false)
     ChargeForDeath(victim)
 end)
 
@@ -806,7 +958,7 @@ concommand.Add("coop_setprice", function(ply, _, args)
     local itemID = string.lower(args[2] or "")
     local price = tonumber(args[3])
     if not GetCatalogueItem(itemType, itemID) or not price then
-        local usage = "Usage: coop_setprice <model|weapon|music> <item_id> <credits>"
+        local usage = "Usage: coop_setprice <model|weapon|music|behaviour> <item_id> <credits>"
         if IsValid(ply) then ply:ChatPrint("[CO-OP] " .. usage) else print("[CO-OP] " .. usage) end
         return
     end