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function widget:GetInfo()  return {    name      = "XPicons",    desc      = "blabla",    author    = "q",    date      = "today",    license   = "GNU GPL, v2 or later",    layer     = 5,    enabled   = false  --  loaded by default?  }end----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------local pos          = {} -- unit positionlocal rect         = {} -- rectanglefor i = 1,4 do          --rectangle points  rect[i]          = {}end----------------------------------------------------------------------------------------------------------------------------------------------------------------------------Speed-upslocal gl                   = gllocal IsUnitVisible        = Spring.IsUnitVisiblelocal GetUnitTeam          = Spring.GetUnitTeamlocal GetUnitPosition      = Spring.GetUnitPositionlocal GetUnitDefID         = Spring.GetUnitDefIDlocal GetUnitDefDimensions = Spring.GetUnitDefDimensionslocal GetCameraVectors     = Spring.GetCameraVectors---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- local A = { 0, 1, 0}-- local B = { 1, 1, 0}-- local C = { 1, 0, 0}-- local D = { 0, 0, 0}-- up      = { 0, 1, 0}-- right   = { 1, 0, 0}----------------------------------------------------------------------------------------------------------------------------------------------------------------------------function widget:DrawWorld()  local allUnits = Spring.GetAllUnits()  for _,unitID in ipairs(allUnits) do    if (IsUnitVisible(unitID)) then      local teamID = GetUnitTeam(unitID)      if (teamID) then                local cam = Spring.GetCameraVectors()        --local unitDefID = GetUnitDefID(unitID)        --local h = GetUnitDefDimensions(unitDefID).height                pos[1], pos[2], pos[3] = GetUnitPosition(unitID)        --pos[2] = pos[2] + h + 10        gl.MatrixMode(GL.MODELVIEW)        gl.PushMatrix()        gl.Scale(100, 100, 100)                for i = 1, 3 do  --set up the rectangle coordinates          rect[1][i] = pos[i] + cam.up[i]          rect[2][i] = pos[i] + cam.up[i] + cam.right[i]          rect[3][i] = pos[i] + cam.right[i]          rect[4][i] = pos[i] + 0        end                gl.BeginEnd(GL.QUADS, function()              gl.Color(1, 0, 0, 1)              for i = 1, 4 do -- draw rectangle                  gl.Vertex(rect[i][1], rect[i][2], rect[i][3])                  --Spring.Echo("rect"..rect[i][1].." "..rect[i][2].." "..rect[i][3])              end              --Spring.Echo("pos "..pos[1].." "..pos[2].." "..pos[3])            end          )                gl.PopMatrix()              end    end  endend