func draw(pm nimble.PixMap, text [][]byte) {
if teletypeFont == nil {
panic("teletype font missing")
}
width, height := pm.Size()
// Clear area
pm.Fill(nimble.Black)
// Write lines of text
for m := range text {
x := int32(textLeftMargin)
for j := range text[m] {
if x >= width {
break
}
kLimit := width - x
if kLimit > charWidth {
kLimit = charWidth
}
c := text[m][j]
for i, mask := range teletypeFont[c] {
y := int32(textTopMargin + m*textLineHeight + i)
if y >= height {
break
}
pixelRow := pm.Row(y)[x : x+kLimit]
colorIndex := 0
for k := range pixelRow {
if mask&(1<<uint(k)) != 0 {
pixelRow[k] = teletypeColor[colorIndex]
colorIndex++
} else {
colorIndex = 0
}
}
}
x += charWidth
}
}
}
func (*context) Render(pm nimble.PixMap) {
pm.Fill(nimble.Gray(0.1))
theMenu.Draw(pm, 50, 100)
}
