typing-in-c

A simple terminal-based typing simulator written in C.

This project takes user input and replays it character-by-character at a configurable typing speed, creating the effect of simulated typing inside the terminal.

The project also demonstrates the usage of a custom dynamic array implementation written in C.

---

Features

• Terminal-based typing simulation
• Configurable typing speed
• Character-by-character output
• Uses low-level system calls like write()
• Built using a custom dynamic array library
• Lightweight and minimal

---

Dependencies

This project depends on the custom dynamic array library from:

dynamic-c-array

Make sure dynamic_arrays.h and the corresponding implementation file are available during compilation.

---

Building

Compile using GCC:

gcc main.c dynamic_arrays.c -o typing

Run:

./typing

---

Usage

After launching the program:

1. Enter an approximate typing speed in WPM
2. Type the desired text
3. Press Ctrl+D to finish input
4. The program replays the text with simulated typing

Example:

Enter rough wpm speed: 80
Press Ctrl+D to end your typing!
Enter the string:
Hello world!

Output is then replayed character-by-character.

---

Implementation Details

The program uses:

• usleep() for typing delay simulation
• write() for low-level terminal output
• Dynamic arrays for storing input strings
• Standard input stream processing using scanf

The typing delay is controlled using:

#define pause(x) usleep(12000000 / (x))

---

Future Improvements

• Real WPM calculation
• Colored terminal output
• Better input handling
• Multiple typing modes
• ncurses-based UI
• File input support
• Random typing prompts

---