-- #######################################
-- ## Project:  Team Deathmatch 2.0 Res ##
-- ## Name: Nametags.lua                    ##
-- ## Author: Noneatme                  ##
-- ## Version: 1.0                      ##
-- ## License: See top Folder           ##
-- #######################################

-- FUNCTIONS / METHODS --

local cFunc = {};       -- Local Functions
local cSetting = {};    -- Local Settings

Nametags = {};
Nametags.__index = Nametags;

--[[

]]

-- ///////////////////////////////
-- ///// New                //////
-- ///// Returns: Object    //////
-- ///////////////////////////////

function Nametags:New(...)
    local obj = setmetatable({}, {__index = self});
    if obj.Constructor then
        obj:Constructor(...);
    end
    return obj;
end

-- ///////////////////////////////
-- ///// Render             //////
-- ///// Returns: void      //////
-- ///////////////////////////////

function Nametags:Render()
    local x2, y2, z2 = getCameraMatrix()
    for index, ped in pairs(getElementsByType("player", getRootElement(), true)) do
        setPlayerNametagShowing(ped, false)
        if(ped ~= localPlayer) then
            local x, y, z = getElementPosition(ped)
            local color = tocolor(0, 255, 0, 255)

            if(isLineOfSightClear(x, y, z, x2, y2, z2, true, true, false)) then
                local distance = getDistanceBetweenPoints3D(x2, y2, z2, x, y, z)

                z = z+getElementDistanceFromCentreOfMassToBaseOfModel(ped)
                local sx, sy = getScreenFromWorldPosition(x, y, z);
                local sx2, sy2 = getScreenFromWorldPosition(x, y, z+0.25);

                if(sx and sy) then
                    -- Background
                    local width = 256

                    width = (width/distance)*5

                    if(width >= 256) then
                        width = 256;
                    end

                    local height = width/2

                    local width2 = 256/100*getElementHealth(ped)
                    local width3 = width/100*getElementHealth(ped)

                    local name = getPlayerName(ped)


                    local scale = (self.scale/distance)*5

                    if(scale >= self.scale) then
                        scale = self.scale
                    end

                    if(sx2 and sy2) then
                        -- NAME --
                        dxDrawText(name, sx2, sy2, sx2, sy2, tocolor(255, 255, 255, 255), scale, self.font, "center", "center")
                    end
                    -- Background
                    dxDrawImage(sx-width/2, sy-height/2, width, height, "files/images/hud_healthbar_bg.png", 0, 0, 0, tocolor(255, 255, 255, 255))

                    -- Healthbar empty

                    dxDrawImage(sx-width/2, sy-height/2, width, height, "files/images/hud_healthbar_empty.png", 0, 0, 0, color)

                    -- White
                    --dxDrawImage(sx-width/2, sy-height/2, width, height, "files/images/hud_healthbar_white.png", 0, 0, 0, color)

                    local oldhealth = self.oldHealth[ped]

                    if(oldhealth) and (oldhealth-getElementHealth(ped) > 0) then
                        local width4 = width/100*oldhealth

                        dxDrawImage((sx-width/2), sy-height/2, width4, height, "files/images/hud_healthbar_white.png", 0, 0, 0, tocolor(255, 255, 255, 150))

                        if(self.reversed[ped] == true) then
                            if(self.oldHealth[ped] >= getElementHealth(ped)) then
                                self.oldHealth[ped] = self.oldHealth[ped]-1.25
                            end
                        end
                    end
                    -- Health
                    --dxDrawImageSection ( sx-width/2, sy-height/2, width, height, 50, 50, 50, 50, "picture.png" )
                    --dxDrawImage(sx-width/2, sy-height/2, width2, height, "files/images/hud_healthbar_healthfull.png", 0, 0, 0, color)
                    dxDrawImageSection ( sx-width/2, sy-height/2, width3, height, 0, 0, width2, 128, "files/images/hud_healthbar_healthfull.png", 0, 0, 0, color )
                end
            end
        end
    end
end


-- ///////////////////////////////
-- ///// Constructor        //////
-- ///// Returns: void      //////
-- ///////////////////////////////

function Nametags:Constructor(...)
    self.renderFunc = function() self:Render() end
    self.pedDamageFunc = function(_, _, _, loss)
        local player = source;

        if not(self.oldHealth[player]) then
            self.oldHealth[player] = getElementHealth(player);
        end

        self.reversed[player] = false;
        if(isTimer(self.updateTimer[player])) then
            killTimer(self.updateTimer[player])
        else
            self.oldHealth[player] = getElementHealth(player)+loss;
        end


        self.updateTimer[player] = setTimer(function()
        --  self.oldHealth[player] = getElementHealth(player)
            self.reversed[player] = true;
        end, 500, 1)

    end;

    self.oldHealth = {}
    self.updateTimer = {}
    self.reversed = {}

    self.scale = 0.3
    self.font = dxCreateFont("files/fonts/chicken.ttf", 60)

    addEventHandler("onClientPreRender", getRootElement(), self.renderFunc)
    addEventHandler("onClientPlayerDamage", getRootElement(), self.pedDamageFunc)


    setPedTargetingMarkerEnabled(false)

    outputDebugString("[CALLING] Nametags: Constructor");
end

-- EVENT HANDLER --