/// <summary> Calculates the location and size of the caret character </summary>
public void UpdateCaret()
{
int maxChars = UsedLines * MaxCharsPerLine;
if (caret >= maxChars)
{
caret = -1;
}
Text.GetCoords(caret, lines, out caretX, out caretY);
DrawTextArgs args = new DrawTextArgs(null, font, false);
IDrawer2D drawer = game.Drawer2D;
caretAccumulator = 0;
if (caretX == MaxCharsPerLine)
{
caretTex.X1 = X + Padding + lineSizes[caretY].Width;
caretColour = FastColour.Yellow;
caretTex.Width = (ushort)caretWidth;
}
else
{
args.Text = lines[caretY].Substring(0, caretX);
Size trimmedSize = drawer.MeasureSize(ref args);
if (caretY == 0)
{
trimmedSize.Width += prefixWidth;
}
caretTex.X1 = X + Padding + trimmedSize.Width;
caretColour = FastColour.Scale(FastColour.White, 0.8f);
string line = lines[caretY];
if (caretX < line.Length)
{
args.Text = new String(line[caretX], 1);
args.UseShadow = true;
caretTex.Width = (ushort)drawer.MeasureSize(ref args).Width;
}
else
{
caretTex.Width = (ushort)caretWidth;
}
}
caretTex.Y1 = lineSizes[0].Height * caretY + inputTex.Y1 + 2;
// Update the colour of the caret
char code = GetLastColour(caretX, caretY);
if (code != '\0')
{
caretColour = IDrawer2D.GetCol(code);
}
}