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using System;
using OpenTK;
using OpenTK.Graphics;
using OpenTK.Graphics.OpenGL;
namespace Unicity.Renderer
{
public class RenderWindow : IDisposable
{
public event EventHandler Update;
public event EventHandler Render;
GameWindow window = null;
public int Width { get => window.Width; set => window.Width = value; }
public int Height { get => window.Height; set => window.Height = value; }
public string Title { get => window.Title; set => window.Title = value; }
public bool UpdateOnResize = false;
bool disposed = false;
public RenderWindow(int width, int height, string title)
{
window = new GameWindow(width, height, GraphicsMode.Default, title, GameWindowFlags.Default, DisplayDevice.Default, 3, 3, GraphicsContextFlags.ForwardCompatible);
window.Load += Window_Load;
window.Resize += Window_Resize;
window.UpdateFrame += Window_UpdateFrame;
window.RenderFrame += Window_RenderFrame;
}
private void Window_Load(object sender, EventArgs e)
{
GL.Viewport(0, 0, Width, Height);
}
private void Window_Resize(object sender, EventArgs e)
{
GL.Viewport(0, 0, Width, Height);
if (UpdateOnResize)
{
Window_RenderFrame(this, new FrameEventArgs());
}
}
private void Window_UpdateFrame(object sender, FrameEventArgs e)
{
Update?.Invoke(this, EventArgs.Empty);
}
private void Window_RenderFrame(object sender, FrameEventArgs e)
{
GL.Clear(ClearBufferMask.ColorBufferBit);
Render?.Invoke(this, EventArgs.Empty);
window.SwapBuffers();
}
public void Open(double ups, double fps)
{
window.Run(ups, fps);
}
public void MakeCurrent()
{
if (window.IsExiting)
{
return;
}
window.MakeCurrent();
}
protected virtual void Dispose(bool disposing)
{
if (disposed)
{
return;
}
if (disposing)
{
// Dispose of managed resources
}
// Dispose of unmanaged resources
window?.Dispose();
disposed = true;
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
}
}
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