LuaCSGO. A Lua API for CSGO

require("LuaCSGO/Settings")
require("LuaCSGO/LuaESP")

g_pEngine         = Interfaces:GetEngineInterface()
g_pEngineTrace    = Interfaces:GetEngineTraceInterface()
g_pEntityList     = Interfaces:GetEntityListInterface() 
g_pVGUIPanel    = Interfaces:GetPanelInterface()
g_pGlobals         = Interfaces:GetGlobalVars()

local g_pMenuFont     = nil
local iTopPanel        = nil

function OnKeyEvent(keyEvent)
    if keyEvent.Type == EVENT_KEYDOWN then
        if keyEvent.KeyCode == KEY_HOME then
            LuaCSGO:Toggle()
            if not LuaCSGO:IsActive() then 
                --Not active, disable all callbacks except the keyboard
                Callbacks:DisableAllExcept(CALLBACK_KEYBOARD)
            else 
                --Enable all of the registered callbacks
                Callbacks:EnableAllCallbacks()
            end
        elseif keyEvent.KeyCode == KEY_INSERT then
            --This will force a reload of all the scripts
            RELOAD()
        end
        
    end
    
    return false
end

function OnPaintTraverse(vguiPanel)
    if iTopPanel == nil then
        szPanelName = g_pVGUIPanel:GetName(vguiPanel)
        print(szPanelName)
        --Is this panel the top panel?
        if szPanelName == "MatSystemTopPanel" then
        
            --If it is, then save its number so we dont have to compare strings anymore
            iTopPanel = vguiPanel
            print("MatSystemTopPanel found. ID = " .. iTopPanel)
            
            --Create a font for drawing
            g_pMenuFont = DrawManager:CreateNewFont("Courier New", 16, false, false, true, true)
        end
    elseif vguiPanel == iTopPanel then
        
        --Is the local player in-game?
        if g_pEngine:IsInGame() then
            
            --Taking a screenshot. Don't draw anything, let's look legit! :-)
            if g_pEngine:IsTakingScreenshot() then return end
        
            local pLocalPlayer = g_pEntityList:GetEntityFromIndex(g_pEngine:GetLocalPlayer())
            
            --If local player is not valid then we return immediately.
            --This should never happen, but it is good to check anyways.
            if not pLocalPlayer:IsValid() then 
                return 
            end
            
            --For each entity...
            for i = 1, g_pEntityList:GetHighestEntityIndex() do
                --Grab the entity from the entity list
                local pEntity = g_pEntityList:GetEntityFromIndex(i)
                
                --Is it a valid entity?
                if pEntity:IsValid() then
                    
                    iClassID = pEntity:GetClassID()
                    --Is it a player? (This check is not a must, but it is useful when you want to do something with entities that are not players)
                    --    You could also compare by name, if you dont know the ID. like so: if pEntity:GetClassName() == "CCSPlayer"
                    if iClassID == 34 --[[CCSPlayer]] then
                        
                        --Is it alive, not dormant and is not the local player?
                        if pEntity:IsAlive() and not pEntity:IsDormant() and i ~= g_pEngine:GetLocalPlayer() then
                            
                            DrawBox(pLocalPlayer, pEntity)
                            DrawNames(pLocalPlayer, pEntity, i)
                        end    
                    elseif iClassID == 103 then
                        --Do something with CCSPlantedC4
                    end
                end
            end
        end
    end
end

function Clamp(vec)
    if vec.Y > 180.0 then
        vec.Y = vec.Y - 360.0
    elseif vec.Y < -180.0 then
        vec.Y = vec.Y + 360.0
    end

    if vec.X > 89.0 then
        vec.X = 89.0;
    elseif vec.X < -89.0 then
        vec.X = -89.0
    end
    
    vec.Z = 0.0
    
    return vec
end

function OnCreateMove(userCmd,verifiedCmd)
    --Local player will always be valid on CreateMove (LuaCSGO does the check before calling the callback)
    local pLocalPlayer = g_pEntityList:GetEntityFromIndex(g_pEngine:GetLocalPlayer())
    local oldAngles = userCmd.ViewAngles
    local punchAngles = pLocalPlayer:GetAimPunch()
    
    local newAngles = oldAngles - punchAngles * 2
    
    userCmd.ViewAngles = Clamp(newAngles)
    
    --Apply new UserCMD and updates CRC
    verifiedCmd:Update(userCmd)
end

local oldAimPunch = Vector()
local oldViewPunch = Vector()
local bRestore = false

function OnFrameStageNotifyBegin(stage)
    if stage == FRAME_RENDER_START then
        local pLocalPlayer = g_pEntityList:GetEntityFromIndex(g_pEngine:GetLocalPlayer())
        if pLocalPlayer:IsValid() then
            --Save the old angles
            oldViewPunch = pLocalPlayer:GetViewPunch()
            oldAimPunch = pLocalPlayer:GetAimPunch()
            
            --Reset view and aim punch
            pLocalPlayer:SetViewPunch(Vector(0,0,0))
            pLocalPlayer:SetAimPunch(Vector(0,0,0))
            
            --Set the restore flag
            bRestore = true
        end
    end
end

function OnFrameStageNotifyEnd(stage)
    --If the flag is set, then we have angles to restore
    if bRestore then
        local pLocalPlayer = g_pEntityList:GetEntityFromIndex(g_pEngine:GetLocalPlayer())
        if pLocalPlayer:IsValid() then
            pLocalPlayer:SetViewPunch(oldViewPunch)
            pLocalPlayer:SetAimPunch(oldAimPunch)
            bRestore = false
        end
    end
end

--Register used callbacks
Callbacks:Register(CALLBACK_KEYBOARD,                     OnKeyEvent)
Callbacks:Register(CALLBACK_PAINTTRAVERSE,                 OnPaintTraverse)
Callbacks:Register(CALLBACK_CREATEMOVE,                 OnCreateMove)
Callbacks:Register(CALLBACK_FRAMESTAGENOTIFY_BEGIN,     OnFrameStageNotifyBegin)
Callbacks:Register(CALLBACK_FRAMESTAGENOTIFY_END,         OnFrameStageNotifyEnd)