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    --afficherla quantité de carburant dans un ecran:
screen.clear()
local tmp = math.floor(container_0.getItemsMass()*10)/10
screen.setText(0,0,10, "fuel:" .. tmp)


    
    
 --Cuve carburant svg   
    
screen.clear()
local strHtml -- variable qui va contenir l'html/svg
local fuel1 = math.floor ( ( container_1.getItemsMass()/1750)/8*100 ) -- % de fuel
local fuel2 = math.floor ( ( container_2.getItemsMass()/1750)/8*100 ) -- % de fuel
local fuel3 = math.floor ( ( container_3.getItemsMass()/1750)/8*100 ) -- % de fuel

local fuel4 = math.floor ( ( container_4.getItemsMass()/800)/8*100 ) -- % de fuel
local fuel5 = math.floor ( ( container_5.getItemsMass()/800)/8*100 ) -- % de fuel
local fuel6 = math.floor ( ( container_6.getItemsMass()/800)/8*100 ) -- % de fuel

function displayFuel(fuelQuantity)
  local freturn = [[<div class="gauge">
        <svg viewBox="0 0 20 100">
          <rect x="0" y="0" rx="8" ry="8" width="20" height="100"
            style="fill:white;fill-opacity:1;stroke:black;stroke-width:1;opacity:1" />
          <rect x="0" y="0" rx="8" ry="8" width="20" height="]] .. fuelQuantity .. [["
            style="fill:orange;opacity:1;stroke:black;stroke-width:1" transform="translate(0,100), rotate(180 10 0)"/>
        </svg>
        <span>]] .. fuelQuantity .. [[</span>
      </div>]]
  return freturn
end

strHtml = [[<html>
<head>
  <style type="text/css">
body{
  background-color: #000;
}
.gauges_container{
  display: flex;
  height: 80vh;
}
.gauges_container .gauge{
  position: relative;
  height: 100%;
  width: calc(100vw / 6);
}
.gauges_container .gauge svg{
  position: absolute;
  height: 100%;
  width: 100%;
}
.gauges_container .gauge span{
  text-align: center;
  font-size: 10vh;
  color: #fff;
  position: absolute;
  bottom: -10vh;
  width: 100%;
}
  </style>
</head>
<body>
  <body>
    <div class="gauges_container">]]

strHtml = strHtml .. displayFuel(fuel1)
strHtml = strHtml .. displayFuel(fuel2)
strHtml = strHtml .. displayFuel(fuel3)

strHtml = strHtml .. displayFuel(fuel4)
strHtml = strHtml .. displayFuel(fuel5)
strHtml = strHtml .. displayFuel(fuel6)

strHtml = strHtml .. [[
    </div>
    
  </body>
</body>
</html>]]

screen.setRawHTML(strHtml)
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