Digital Clock

A 7-segment digital clock rendered from scratch in C using raylib.

Features

• Custom 7-segment display drawn using DrawTriangleStrip
• Hours : Minutes : Seconds (HH:MM:SS) in local time
• Red segments on a pure black background
• Centered layout with proper spacing between time groups
• Runs at a smooth 60 FPS

Prerequisites

• macOS (build uses Apple frameworks)
• raylib (installed via Homebrew)
• pkg-config
• clang (Xcode Command Line Tools)

Install raylib:

brew install raylib

Build & Run

make build    # compiles the binary
make run      # builds and launches the clock
make clean    # removes the binary

How It Works

• Each digit is composed of up to 7 segments defined in a lookup table.
• Segments are drawn as 6-point triangle strips (both horizontal and vertical variants).
• Colons are rendered as two simple circles between the hour/minute and minute/second groups.
• Time is fetched using standard C time() + localtime().
• The display is recalculated and redrawn every frame.