Program.cs

using System.Numerics;
using Raylib_cs;
using Source.Upgrades;
using Source.Utils;

namespace Source;

internal static class Program
{
    private static void Main()
    {
        //FIRST
        // set config flags to resizable
        Raylib.SetConfigFlags(ConfigFlags.ResizableWindow);
        // initialize the window
        Raylib.InitWindow(1280, 720, "Raylib Clicker Game");
        // set frame rate to 60
        Raylib.SetTargetFPS(60);


        // MAKE AFTER UPGRADE
        double score = 0.0; // starting score (debug is 250)

        List<Upgrade> shop = new()
        {
            new Upgrade("Stupid Drill", 2, 0.05),
            new Upgrade("Copper Drill", 50, 2),
            new Upgrade("Diamond Drill", 10000, 1000)
        };
        
            
        // FIRST
        while (!Raylib.WindowShouldClose())
        {
            // MAKE AFTER UPGRADE
            float deltaTime = Raylib.GetFrameTime();
            double totalPassiveIncome = shop.Sum(item => item.GetTotalIncome());

            score += totalPassiveIncome * deltaTime;

            float screenW = Raylib.GetScreenWidth();
            float screenH = Raylib.GetScreenHeight();

            // SECOND
            Rectangle clickButtonBounds = new(50, (screenH / 2f) - 100, 300, 200);
            Rectangle shopPanel = new(screenW - 380, 20, 350, screenH - 40);
            

            //SECOND
            // main click button
            Vector2 mousePos = Raylib.GetMousePosition();
            bool isClickHover = Raylib.CheckCollisionPointRec(mousePos, clickButtonBounds);

            // FIRST
            Raylib.BeginDrawing();
            {
                Raylib.ClearBackground(Color.Black);

                // SECOND
                Raylib.DrawRectangleRec(clickButtonBounds, isClickHover ? Color.LightGray : Color.Gray);
                Raylib.DrawText("CLICK ME", (int)clickButtonBounds.X + 90, (int)clickButtonBounds.Y + 85, 24, Color.White);

                // THIRD
                // if mouse clicks the button
                if (Raylib.IsMouseButtonPressed(MouseButton.Left) && isClickHover)
                    score += 1.0;

                // MAKE AFTER UPGRADE
                // shop panel
                Raylib.DrawRectangleLinesEx(shopPanel, 2, Color.LightGray);
                Raylib.DrawText("UPGRADE SHOP", (int)shopPanel.X + 10, (int)shopPanel.Y + 10, 24, Color.White);
                
                // loop through shop dynamically
                for (int i = 0; i < shop.Count; i++)
                {
                    Rectangle dynamicBtnBounds = new(
                        shopPanel.X + 20,
                        shopPanel.Y + 50 + (i * 80),
                        shopPanel.Width - 40,
                        65
                    );
                    shop[i].UpdateAndDraw(ref score, dynamicBtnBounds);
                }
                
                Raylib.DrawText($"Score: {score:F2}", 50, 50, 32, Color.RayWhite);
                Raylib.DrawText($"Income/Sec: {GameUtils.FormatNumber(totalPassiveIncome)}", 50, 100, 24, Color.RayWhite);
            }
            Raylib.EndDrawing();
        }
        Raylib.CloseWindow();
    }
}