CCGPU Basic Graphics API v1.0

function round(num, idp)
  local mult = 10^(idp or 0)
  return math.floor(num * mult + 0.5) / mult
end

function drawFrame(side, mon_id, code)

  gpu.setRenderCode(side, [[
    gpuBindOutputBuffer(]]..mon_id..[[)
    gpuClearBuffer()
    ]] .. code)

end

function PointCode(x, y, r, g, b)

  return "glColor3f(" .. r .. "," .. g .."," .. b .. ")  glBegin(GL_POINTS)                                 glVertex2f("..x..","..y..")  glEnd()  "

end

function LineCode(x1, y1, x2, y2, r, g, b)

  return "glColor3f(" .. r .. "," .. g .."," .. b .. ")  glBegin(1)                                 glVertex2f("..x1..","..y1..")  glVertex2f("..x2..","..y2..")  glEnd()  "

end

function RectangleCode(x1, y1, x2, y2, r, g, b)

  return "glColor3f(" .. r .. "," .. g .."," .. b .. ")  glBegin(GL_QUADS)                                 glVertex2f("..x1..","..y1..")  glVertex2f("..x1..","..y2..")  glVertex2f("..x2..","..y2..")    glVertex2f("..x2..","..y1..")  glEnd()  "

end

function CircleCode(x, y, rad, r, g, b)

  Code = "glColor3f(" .. r .. "," .. g .."," .. b .. ") glBegin(GL_POINTS)"
  for i = 0,360,1 do
    Code = Code .. " glVertex2f(".. round(math.cos( math.rad(i) )*rad + x) ..   ",".. round(math.sin( math.rad(i) )*rad + y)..")"
  end
  Code = Code .. " glEnd()"

  return Code

end

function filledCircleCode(x, y, rad, r, g, b)

  Code = "glColor3f(" .. r .. "," .. g .."," .. b .. ") glBegin(6)  glVertex2f("..x..","..y..")"
  for i = 0,360,1 do
    Code = Code .. " glVertex2f(".. round(math.cos( math.rad(i) )*rad + x) ..   ",".. round(math.sin( math.rad(i) )*rad + y)..")"
  end

  Code = Code .. " glVertex2f("..rad + x..","..y..")"

  Code = Code .. " glEnd()"

  return Code

end

function TriangleCode(x1, y1, x2, y2, x3, y3, r, g, b)

  return "glColor3f(" .. r .. "," .. g .."," .. b .. ")  glBegin(GL_TRIANGLES)                                 glVertex2f("..x1..","..y1..")  glVertex2f("..x2..","..y2..")  glVertex2f("..x3..","..y3..")    glEnd()  "

end