Example_-_BruteForceCirclefill.c

//
// Draw a Filled circle using brute force.
//

#include "raylib.h"

void bruteforcecircle(int xc, int yc, int r,Color col);

int main(void)
{
    // Initialization
    //--------------------------------------------------------------------------------------
    const int screenWidth = 800;
    const int screenHeight = 450;

    InitWindow(screenWidth, screenHeight, "raylib example.");
 
    SetTargetFPS(10);               // Set our game to run at 60 frames-per-second
    //--------------------------------------------------------------------------------------

    // Main game loop
    while (!WindowShouldClose())    // Detect window close button or ESC key
    {
        // Update
        //----------------------------------------------------------------------------------
        
        
        //----------------------------------------------------------------------------------
        // Draw
        //----------------------------------------------------------------------------------
        BeginDrawing();

            ClearBackground(RAYWHITE);
            for(int i=0;i<20;i++){
                int x = GetRandomValue(0,screenWidth);
                int y = GetRandomValue(0,screenHeight);
                int r = GetRandomValue(10,100);
                bruteforcecircle(x,y,r,RED);
            }

        EndDrawing();
        //----------------------------------------------------------------------------------
    }

    // De-Initialization
    //--------------------------------------------------------------------------------------
    CloseWindow();        // Close window and OpenGL context
    //--------------------------------------------------------------------------------------

    return 0;


}

void bruteforcecircle(int xc, int yc, int radius,Color col) { 
    for(int y=-radius; y<=radius; y++){
    for(int x=-radius; x<=radius; x++){
        if(x*x+y*y <= radius*radius)
            DrawPixel(xc+x, yc+y,col);
    }}
}