Initial commit

gamemodes/darkrp/gamemode/modules/fpp/pp/client/ownability.lua

@@ -0,0 +1,93 @@
+FPP = FPP or {}
+
+FPP.entOwners       = FPP.entOwners or {}
+FPP.entTouchability = FPP.entTouchability or {}
+FPP.entTouchReasons = FPP.entTouchReasons or {}
+
+local touchTypes = {
+    Physgun = 1,
+    Gravgun = 2,
+    Toolgun = 4,
+    PlayerUse = 8,
+    EntityDamage = 16
+}
+
+local reasonSize = 4 -- bits
+local reasons = {
+    [1] = "owner", -- you can't touch other people's props
+    [2] = "world",
+    [3] = "disconnected",
+    [4] = "blocked",
+    [5] = "constrained",
+    [6] = "buddy",
+    [7] = "shared",
+    [8] = "player", -- you can't pick up players
+}
+
+local function receiveTouchData(len)
+    repeat
+        local entIndex = net.ReadUInt(13)
+        local ownerIndex = net.ReadUInt(8)
+        local touchability = net.ReadUInt(5)
+        local reason = net.ReadUInt(20)
+
+        if ownerIndex == 255 then
+            ownerIndex = -1
+        end
+
+        FPP.entOwners[entIndex] = ownerIndex
+        FPP.entTouchability[entIndex] = touchability
+        FPP.entTouchReasons[entIndex] = reason
+    until net.ReadBit() == 1
+end
+net.Receive("FPP_TouchabilityData", receiveTouchData)
+
+function FPP.entGetOwner(ent)
+    local idx = FPP.entOwners[ent:EntIndex()]
+    ent.FPPOwner = idx and Entity(idx) or nil
+
+    return ent.FPPOwner
+end
+
+function FPP.canTouchEnt(ent, touchType)
+    ent.FPPCanTouch = FPP.entTouchability[ent:EntIndex()]
+    if not touchType or not ent.FPPCanTouch then
+        return ent.FPPCanTouch
+    end
+
+    return bit.bor(ent.FPPCanTouch, touchTypes[touchType]) == ent.FPPCanTouch
+end
+
+local touchTypeMultiplier = {
+    ["Physgun"] = 0,
+    ["Gravgun"] = 1,
+    ["Toolgun"] = 2,
+    ["PlayerUse"] = 3,
+    ["EntityDamage"] = 4
+}
+
+function FPP.entGetTouchReason(ent, touchType)
+    local idx = FPP.entTouchReasons[ent:EntIndex()] or 0
+    ent.FPPCanTouchWhy = idx
+
+    if not touchType then return idx end
+
+    local maxReasonValue = 15
+    -- 1111 shifted to the right touch type
+    local touchTypeMask = bit.lshift(maxReasonValue, reasonSize * touchTypeMultiplier[touchType])
+    -- Extract reason for touch type from reason number
+    local touchTypeReason = bit.band(idx, touchTypeMask)
+    -- Shift it back to the right
+    local reasonNr = bit.rshift(touchTypeReason, reasonSize * touchTypeMultiplier[touchType])
+
+    local reason = reasons[reasonNr]
+    local owner = ent:CPPIGetOwner()
+
+    if reasonNr == 1 then -- convert owner to the actual player
+        return not isnumber(owner) and IsValid(owner) and owner:Nick() or "Unknown player"
+    elseif reasonNr == 6 then
+        return "Buddy (" .. (IsValid(owner) and owner:Nick() or "Unknown player") .. ")"
+    end
+
+    return reason
+end