try this:
g_Players = getElementsByType('player')
nametag = {}
local nametags = {}
local g_screenX,g_screenY = guiGetScreenSize()
local bHideNametags = false
local NAMETAG_SCALE = 0.3 --Overall adjustment of the nametag, use this to resize but constrain proportions
local NAMETAG_ALPHA_DISTANCE = 25 --Distance to start fading out
local NAMETAG_DISTANCE = 25 --Distance until we're gone
local NAMETAG_ALPHA = 120 --The overall alpha level of the nametag
--The following arent actual pixel measurements, they're just proportional constraints
local NAMETAG_TEXT_BAR_SPACE = 2
local NAMETAG_WIDTH = 50
local NAMETAG_HEIGHT = 5
local NAMETAG_TEXTSIZE = 0.9
local NAMETAG_OUTLINE_THICKNESS = 1.3
--
local NAMETAG_ALPHA_DIFF = NAMETAG_DISTANCE - NAMETAG_ALPHA_DISTANCE
NAMETAG_SCALE = 1/NAMETAG_SCALE * 800 / g_screenY
-- Ensure the name tag doesn't get too big
local maxScaleCurve = { {0, 0}, {3, 3}, {13, 5} }
-- Ensure the text doesn't get too small/unreadable
local textScaleCurve = { {0, 0.8}, {0.8, 1.2}, {99, 99} }
-- Make the text a bit brighter and fade more gradually
local textAlphaCurve = { {0, 0}, {25, 100}, {120, 190}, {255, 190} }
function nametagcreate ( player )
nametags[player] = true
end
function nametagdestroy ( player )
nametags[player] = nil
end
addEventHandler ( "onClientRender", root,
function()
-- Hideous quick fix --
for i,player in ipairs(g_Players) do
if isElement(player) then
if player ~= localPlayer then
setPlayerNametagShowing ( player, false )
if not nametags[player] then
nametagcreate ( player )
end
end
end
end
if bHideNametags then
return
end
local x,y,z = getCameraMatrix()
for player in pairs(nametags) do
while true do
if not isElement(player) then break end
if getElementDimension(player) ~= getElementDimension(localPlayer) then break end
local px,py,pz = getElementPosition ( player )
if processLineOfSight(x, y, z, px, py, pz, true, false, false, true, false, true) then break end
local pdistance = getDistanceBetweenPoints3D ( x,y,z,px,py,pz )
if pdistance <= NAMETAG_DISTANCE then
--Get screenposition
local sx,sy = getScreenFromWorldPosition ( px, py, pz+0.95, 0.06 )
---------------------------------------------------------------------------------------------------------------------
------------------------------------------------------ POSI OF STATUS ----------------------------------------------
---------------------------------------------------------------------------------------------------------------------
local sxStat,syStat = getScreenFromWorldPosition ( px, py, pz+0.85, 0.06 )
if not sx or not sy then break end
if not sxStat or not syStat then break end
--Calculate our components
local scale = 1/(NAMETAG_SCALE * (pdistance / NAMETAG_DISTANCE))
local alpha = ((pdistance - NAMETAG_ALPHA_DISTANCE) / NAMETAG_ALPHA_DIFF)
alpha = (alpha < 0) and NAMETAG_ALPHA or NAMETAG_ALPHA-(alpha*NAMETAG_ALPHA)
scale = math.evalCurve(maxScaleCurve,scale)
local textscale = math.evalCurve(textScaleCurve,scale)
local textalpha = math.evalCurve(textAlphaCurve,alpha)
local outlineThickness = NAMETAG_OUTLINE_THICKNESS*(scale)
--Draw our text
local health
local p
local r,g
health = getElementHealth ( player )
health = math.max(health, 0)/100
p = -510*(health^2)
r,g = math.max(math.min(p + 255*health + 255, 255), 0), math.max(math.min(p + 765*health, 255), 0)
local offset = (scale) * NAMETAG_TEXT_BAR_SPACE/2
---------------------------------------------------------------------------------------------------------------------
------------------------------------------------------ STATUS -------------------------------------------------------
---------------------------------------------------------------------------------------------------------------------
dxDrawText ( "DER STATUS", sxStat, syStat - offset, sxStat, syStat - offset, tocolor(10,10,10,255), (textscale*NAMETAG_TEXTSIZE)-0.3, "default", "center", "bottom", false, false, false )
if health <= 0 then
---------------------------------------------------------------------------------------------------------------------
------------------------------------------------------ IMAGE --------------------------------------------------------
---------------------------------------------------------------------------------------------------------------------
dxDrawImage ( sx - offset, sy - offset, 20, 20, 'images/tt.png' )
dxDrawText ( getPlayerName(player), sx, sy - offset+3, sx, sy - offset+3, tocolor(0,0,0,textalpha), (textscale*NAMETAG_TEXTSIZE)-0.3, "default", "center", "bottom", false, false, false )
else
dxDrawText ( getPlayerName(player), sx, sy - offset+3, sx, sy - offset+3, tocolor(r,g,0,textalpha), (textscale*NAMETAG_TEXTSIZE)-0.3, "default", "center", "bottom", false, false, false )
end
end
break
end
end
end
)
---------------THE FOLLOWING IS THE MANAGEMENT OF NAMETAGS-----------------
addEventHandler('onClientResourceStart', resourceRoot,
function()
for i,player in ipairs(g_Players) do
if player ~= localPlayer then
nametagcreate ( player )
end
end
end
)
addEventHandler ( "onClientPlayerJoin", root,
function()
if source == localPlayer then return end
setPlayerNametagShowing ( source, false )
nametagcreate ( source )
end
)
addEventHandler ( "onClientPlayerQuit", root,
function()
nametagdestroy ( source )
end
)
-- Math functions
function math.lerp(from,to,alpha)
return from + (to-from) * alpha
end
-- curve is { {x1, y1}, {x2, y2}, {x3, y3} ... }
function math.evalCurve( curve, input )
-- First value
if input[1][1] then
return curve[1][2]
end
-- Interp value
for idx=2,#curve do
if input[idx][1] then
local x1 = curve[idx-1][1]
local y1 = curve[idx-1][2]
local x2 = curve[idx][1]
local y2 = curve[idx][2]
-- Find pos between input points
local alpha = (input - x1)/(x2 - x1);
-- Map to output points
return math.lerp(y1,y2,alpha)
end
end
-- Last value
return curve[#curve][2]
end
