Text-Renderer/main/main.cpp

#include <iostream>

#include "add.h"
#include "Bitmap.h"

/**
 * @author: Julian Hinxlage
 * @since: v0.0.0
 * @brief: An image is loaded and used as a font.
 * A string is converted and displayed in the console.
 * Currently only to test.
 */
int main() {
    Bitmap bitmap;
    bitmap.load("../res/font.bmp");

    std::string str;
    std::cout << "string to draw: ";
    std::cin >> str;

    //values used to calculate the coordinates of the characters
    int xOffset = 2;
    int yOffset = 2;
    int xSize = 5;
    int ySize = 7;
    int xCount = 18;
    int xStart = 1;
    int yStart = 2;

    //print vertical
    //i is the current row
    for (int i = 0; i < ySize; i++) {
        //loop through the characters in the string
        for (char c : str) {
            //index of character(x and y)
            int index = (c - ' ');
            int xIndex = index % xCount;
            int yIndex = index / xCount;

            //character index to pixel index conversion
            int x = xIndex * (xSize + xOffset) + xStart;
            int y = yIndex * (ySize + yOffset) + yStart;

            //print current row of the current character
            for (int j = x; j < x + xSize; j++) {
                char *pixel_ptr = bitmap.getPixel(j, i + y);
                unsigned int pixel = 0;
                *((char*)&pixel+0) = pixel_ptr[0];
                *((char*)&pixel+1) = pixel_ptr[1];
                *((char*)&pixel+2) = pixel_ptr[2];

                if (pixel == 0) {
                    std::cout << " ";
                } else {
                   std::cout << "1";
                }

            }
            std::cout << " ";
        }
        std::cout << std::endl;
    }

    return 0;
}