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| author | Cliff Click <cliffc@acm.org> | 2026-08-10 11:11:18 -0700 |
|---|---|---|
| committer | Cliff Click <cliffc@acm.org> | 2026-11-14 16:23:39 -0800 |
| commit | 207febef9924c8fa5391185e75d42a7ea480bb38 (patch) | |
| tree | 68ec6225a89fa1178c32fdf659b9b4f2c3327288 /src/main/smp/sys/draw.smp | |
| parent | 259f60b105eb770bc6f7e3bd36d91f2b217e9315 (diff) | |
| download | Simple-207febef9924c8fa5391185e75d42a7ea480bb38.tar.gz Simple-207febef9924c8fa5391185e75d42a7ea480bb38.zip | |
Chapter 31: Software Drawing, Time, and Graphical Gameslinear
Co-authored-by: Hsiang-Ying Fu <66062782+fuhsnn@users.noreply.github.com>
Co-authored-by: fuhsnn <66062782+fuhsnn@users.noreply.github.com>
Co-authored-by: Symious <14933944+symious@users.noreply.github.com>
Co-authored-by: Jun Kawasaki <jun784@gmail.com>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Diffstat (limited to 'src/main/smp/sys/draw.smp')
| -rw-r--r-- | src/main/smp/sys/draw.smp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/main/smp/sys/draw.smp b/src/main/smp/sys/draw.smp new file mode 100644 index 00000000..2a8b6117 --- /dev/null +++ b/src/main/smp/sys/draw.smp @@ -0,0 +1,18 @@ +// Software raster drawing. No window or native calls; pixels are packed RGB (0x00RRGGBB). +u32 BLACK = 0x000000; +u32 WHITE = 0xffffff; +u32 RED = 0xff0000; +u32 GREEN = 0x00ff00; +u32 BLUE = 0x0000ff; + +// Components are clamped to bytes rather than wrapping. +val rgb = { int r, int g, int b -> + r = r < 0 ? 0 : r > 255 ? 255 : r; + g = g < 0 ? 0 : g > 255 ? 255 : g; + b = b < 0 ? 0 : b > 255 ? 255 : b; + u32 color = (r<<16) | (g<<8) | b; + return color; +}; + +val Canvas = Canvas; // Pixel canvas and drawing methods +val Button = Button; // Pointer state and rendering for a rectangular button |