main.cpp

This is an example of most all capabilities of CDM being put to use.

#include "CDM.h"
#include <string>

#define SQR_X 15
#define SQR_Y 15
int main()
{
    int horSpeed = 1, verSpeed = 1;
    CDMContext* ctx = CDMCreateContext(1, 1);
    CDMSetWindowTitle(L"Testing");
    CDMSetFontAndSize(&ctx, L"Terminal", 8, 8);
    CDMChangeWindowSize(&ctx, 80, 80);
    CDMSetCursorVisibility(&ctx, CDMFalse);
    CDMColorScheme mainColor;
    CDMSetColorBin(&mainColor, 0, 0x00362b00);
    CDMSetColorBin(&mainColor, 1, 0x00423607);
    CDMSetColorBin(&mainColor, 2, 0x00756e58);
    CDMSetColorBin(&mainColor, 3, 0x00837b65);
    CDMSetColorBin(&mainColor, 4, 0x00969483);
    CDMSetColorBin(&mainColor, 5, 0x00a1a193);
    CDMSetColorBin(&mainColor, 6, 0x00d5e8ee);
    CDMSetColorBin(&mainColor, 7, 0x00e3f6fd);
    CDMSetColorBin(&mainColor, 8, 0x000089b5);
    CDMSetColorBin(&mainColor, 9, 0x00164bcb);
    CDMSetColorBin(&mainColor, 10, 0x002f32dc);
    CDMSetColorBin(&mainColor, 11, 0x008236d3);
    CDMSetColorBin(&mainColor, 12, 0x00c4716c);
    CDMSetColorBin(&mainColor, 13, 0x00d28b26);
    CDMSetColorBin(&mainColor, 14, 0x0098a12a);
    CDMSetColorBin(&mainColor, 15, 0x00009985);
    CDMSurface* square = CDMCreateSurface(0, 0, SQR_X, SQR_Y);
    CDMSetCharacters(&square, 'T', 'E', 'S', 'T');
    CDMSetForegroundColor(&square, CDMLetterColor::BLACK, CDMLetterColor::CYAN, CDMLetterColor::CLEAR, CDMLetterColor::DARKMAGENTA);
    CDMSetBackgroundColor(&square, CDMBackgroundColor::BWHITE, CDMBackgroundColor::BDARKYELLOW, CDMBackgroundColor::BGREEN, CDMBackgroundColor::BDARKBLUE);
    for (int i = 0; i < SQR_Y; ++i)
    {
        for (int j = 0; j < SQR_X; ++j)
        {
            int randNum = rand() % 100;
            if (randNum < 25)
                CDMSetPixel(&square, j, i, Set1);
            else if(randNum < 50)
                CDMSetPixel(&square, j, i, Set2);
            else if (randNum < 75)
                CDMSetPixel(&square, j, i, Set3);
            else if (randNum < 100)
                CDMSetPixel(&square, j, i, Set4);
        }
    }
    CDMPrepareSurface(&square);
    CDMText* txt = CDMTextWrapper("Press escape to exit.", CDMLetterColor::WHITE, CDMBackgroundColor::BBLACK);
    CDMText* scrSize = CDMTextWrapper((char*)(std::string("Screen size = ") + std::to_string(ctx->rect.Right) +
        ", " + std::to_string(ctx->rect.Bottom) +
        std::string("Press 0 to use the main palette, press 1 to change to a random palette")).data(), CDMLetterColor::WHITE, CDMBackgroundColor::BBLACK);
    CDMPrepareText(&scrSize);
    CDMPrepareText(&txt);
    scrSize->rect.Left = txt->rect.Right + 1;
    while (true)
    {
        CDMPollEvents(ctx, &ctx->events);
        CDMKeepScreenSize(&ctx, &ctx->events);
        CDMClearScreen(&ctx);
        CDMPrepareText(&scrSize);
        if (square->rect.Left < 0)
        {
            square->rect.Left = 0;
            horSpeed = (horSpeed / abs(horSpeed)) * ((rand() % 5) + 1);
            horSpeed *= -1;
        }
        else if (square->rect.Left + square->rect.Right > ctx->rect.Right)
        {
            square->rect.Left = ctx->rect.Right - square->rect.Right;
            horSpeed = (horSpeed / abs(horSpeed)) * ((rand() % 5) + 1);
            horSpeed *= -1;
        }
        if (square->rect.Top < 0)
        {
            square->rect.Top = 0;
            verSpeed = (verSpeed / abs(verSpeed)) * ((rand() % 5) + 1);
            verSpeed *= -1;
        }
        else if (square->rect.Top + square->rect.Bottom > ctx->rect.Bottom)
        {
            square->rect.Top = ctx->rect.Bottom - square->rect.Bottom;
            verSpeed = (verSpeed / abs(verSpeed)) * ((rand() % 5) + 1);
            verSpeed *= -1;
        }
        if (CDMGetKeyUp(&ctx->events, CDMKey::zero))
        {
            CDMSetActiveScheme(mainColor, &ctx);
        }
        if (CDMGetKeyUp(&ctx->events, CDMKey::one))
        {
            CDMColorScheme randScheme;
            for (int i = 0; i < 15; ++i)
                CDMSetColorRGB(&randScheme, i, rand() % 255, rand() % 255, rand() % 255);
            CDMSetActiveScheme(randScheme, &ctx);
        }
        if (CDMGetKeyUp(&ctx->events, CDMKey::esc))
        {
            CDMFreeSurface(&square);
            break;
        }
        square->rect.Left += horSpeed;
        square->rect.Top += verSpeed;
        CDMAddSurfaceToContext(&ctx, square);
        CDMAddTextToContext(&ctx, txt);
        CDMAddTextToContext(&ctx, scrSize);
        CDMDraw(&ctx);
        Sleep(16);
    }
    return 0;
}