include <stdio.h>
#include <string.h>
#include <unistd.h> // For sleep function

// Example 8x8 font array for demonstration
// Each byte represents one column of an 8x8 grid for a character
const uint8_t font[128][8] = {
    ['G'] = {0x3C, 0x42, 0x81, 0x81, 0x91, 0x92, 0x62, 0x00},
    ['o'] = {0x00, 0x00, 0x7C, 0x82, 0x82, 0x82, 0x7C, 0x00},
    ['v'] = {0x00, 0x00, 0xC6, 0xC6, 0x6C, 0x6C, 0x38, 0x00},
    ['e'] = {0x00, 0x00, 0x7C, 0x82, 0xFE, 0x80, 0x7C, 0x00},
    ['r'] = {0x00, 0x00, 0x9C, 0xA2, 0xA0, 0xE0, 0x00, 0x00},
    ['n'] = {0x00, 0x00, 0xDC, 0xA2, 0xA2, 0xA2, 0xA2, 0x00},
    ['m'] = {0x00, 0x00, 0xC6, 0xAA, 0xAA, 0xAA, 0xAA, 0x00},
    ['P'] = {0x00, 0x00, 0xFC, 0x82, 0xFC, 0x80, 0x80, 0x00},
    ['l'] = {0x00, 0x00, 0x60, 0x60, 0x60, 0x60, 0x78, 0x00},
    ['y'] = {0x00, 0x00, 0xC6, 0xC6, 0x7C, 0x0C, 0xF8, 0x00},
    ['t'] = {0x20, 0x20, 0xF8, 0x20, 0x20, 0x22, 0x1C, 0x00},
    ['e'] = {0x00, 0x00, 0x7C, 0x82, 0xFE, 0x80, 0x7C, 0x00},
    ['c'] = {0x00, 0x00, 0x3C, 0x42, 0x80, 0x42, 0x3C, 0x00},
    ['K'] = {0x00, 0x00, 0x84, 0x88, 0xB0, 0xC8, 0x84, 0x00},
    ['h'] = {0x00, 0x00, 0xC0, 0xA0, 0xA0, 0xA0, 0xA0, 0x00},
    ['a'] = {0x00, 0x00, 0x78, 0x04, 0x7C, 0x84, 0x7C, 0x00},
    ['m'] = {0x00, 0x00, 0xC6, 0xAA, 0xAA, 0xAA, 0xAA, 0x00},
    ['g'] = {0x00, 0x00, 0x7C, 0x82, 0x7C, 0x02, 0x7C, 0x00},
    [' '] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
};

// Function to scroll text
void scrollText(const char *text) {
    size_t textLen = strlen(text);

    for (size_t pos = 0; pos < textLen; pos++) {
        for (int col = 0; col < 8; col++) {
            // Print each column of the current character
            uint8_t column = font[(int)text[pos]][col];

            for (int row = 0; row < 8; row++) {
                // Print dot or space based on the bit value
                if (column & (1 << row))
                    printf("●");
                else
                    printf(" ");
            }
            printf("\n");
        }
        printf("\n");
        sleep(1); // Pause for 1 second between characters
    }
}

int main() {
    const char *text = "Government Polytechnic Khamgaon";
    scrollText(text);
    return 0;
}