public static void ClearScreen(bool resetGrid = true)
{
ScreenShapes.DrawRectangle(0, 0, Eight.RealWidth, Eight.RealHeight, BackgroundColor);
if (resetGrid)
{
Display.TextGrid = Enumerable.Repeat(Utils.ToULong(' ', ForegroundColor, BackgroundColor), Display.TextGrid.Length).ToArray();
}
Display.TextFlags = new byte[Display.TextFlags.Length];
Display.Dirty = true;
}
public static unsafe void DrawChar(char c, int x, int y, int fg, int bg)
{
if (Eight.IsQuitting)
{
return;
}
if (x < 0 || y < 0 || x >= Eight.WindowWidth || y >= Eight.WindowHeight)
{
return;
}
var flag = (Utils.TextFlag)Display.TextFlags[x + y * Eight.WindowWidth];
if (flag.HasFlag(Utils.TextFlag.Reversed))
{
var fgc = fg;
fg = bg;
bg = fgc;
}
if (flag.HasFlag(Utils.TextFlag.Blinking) && Display.BlinkOn)
{
var fgc = fg;
fg = bg;
bg = fgc;
}
var bgc = Color.FromArgb(bg);
if (c >= Display.TextFont.CharList.Length)
{
c = '?';
}
var matrix = Display.TextFont.CharList[c];
if (matrix == null)
{
matrix = Display.TextFont.CharList['?'];
}
var bgRectangle = new SDL_Rect {
x = (x * Eight.CellWidth),
y = (y * Eight.CellHeight),
w = Eight.CellWidth,
h = Eight.CellHeight,
};
// Draw BG
SDL_FillRect(Display.Surface, ref bgRectangle, SDL_MapRGB(((SDL_Surface *)Display.Surface)->format, bgc.R, bgc.G, bgc.B));
// Draw char
int deltaX = (Eight.CellWidth - matrix.GetLength(1)) / 2;
for (int gy = 0; gy < matrix.GetLength(0); gy++)
{
for (int gx = 0; gx < matrix.GetLength(1); gx++)
{
if (matrix[gy, gx])
{
ScreenShapes.DrawPixel(gx + (x * Eight.CellWidth) + deltaX, gy + (y * Eight.CellHeight), fg);
}
}
}
// Draw flags
if (flag.HasFlag(Utils.TextFlag.Underlined))
{
ScreenShapes.DrawRectangle(x * Eight.CellWidth, y * Eight.CellHeight + Eight.CellHeight - 1, Eight.CellWidth, 1, fg);
}
if (flag.HasFlag(Utils.TextFlag.Strikethrough))
{
ScreenShapes.DrawRectangle(x * Eight.CellWidth, y * Eight.CellHeight + Eight.CellHeight / 2, Eight.CellWidth, 1, fg);
}
Display.Dirty = true;
}