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Switch-Toolbox/Switch_Toolbox_Library/Forms/GL/GLControl2D.cs

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C#
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using OpenTK;
using OpenTK.Graphics.OpenGL;
using Switch_Toolbox.Library;
namespace Switch_Toolbox.Library.Forms
{
public class Abstract2DDrawable
{
public virtual void Prepare(GLControl2D control)
{
}
public virtual void Draw(GLControl2D control)
{
}
}
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public class GLControl2D : GLControl
{
public GLControl2D() {
InitializeComponent();
}
public List<Abstract2DDrawable> Drawables = new List<Abstract2DDrawable>();
public float ZoomFactor = 1;
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private void InitializeComponent()
{
this.SuspendLayout();
//
// GLControl2D
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.Name = "GLControl2D";
this.Paint += new System.Windows.Forms.PaintEventHandler(this.GLControl2D_Paint);
this.ResumeLayout(false);
}
private void GLControl2D_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
MakeCurrent();
SetupRendering();
GL.ClearColor(System.Drawing.Color.FromArgb(0, 0, 40));
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GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.Disable(EnableCap.Texture2D);
foreach (var drawable in Drawables)
drawable.Draw(this);
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SwapBuffers();
}
private void SetupRendering()
{
GL.Viewport(0, 0, Width, Height);
GL.MatrixMode(MatrixMode.Projection);
GL.PushMatrix();
GL.LoadIdentity();
GL.Ortho(0, Width * 225, Height * 225, 0, -1, 1);
GL.MatrixMode(MatrixMode.Modelview);
GL.PushMatrix();
GL.LoadIdentity();
// Draw over everything
GL.Disable(EnableCap.DepthTest);
GL.Disable(EnableCap.CullFace);
}
public void AddCircle(Vector2 Position, float Scale = 1) {
Drawables.Add(new Circle2D(Position));
}
public class Circle2D : Abstract2DDrawable
{
public float Radius = 1;
public Vector2 Position = new Vector2(0);
public Circle2D(Vector2 position)
{
Position = position;
}
public override void Draw(GLControl2D control)
{
GL.PushMatrix();
GL.Translate(Position.X, Position.Y, 0);
GL.Color4(System.Drawing.Color.Red);
GL.Begin(PrimitiveType.LineLoop);
for (int i = 0; i <= 300; i++)
{
double angle = 2 * Math.PI * i / 300;
double x = Math.Cos(angle);
double y = Math.Sin(angle);
GL.Vertex2(x, y);
}
GL.End();
GL.PopMatrix();
}
}
public class Rectangle2D : Abstract2DDrawable
{
public float Width = 600;
public float Height = 400;
public Vector2 Position = new Vector2(0);
public Rectangle2D(float width, float height, Vector2 position) {
Width = width;
Height = height;
Position = position;
}
public override void Draw(GLControl2D control)
{
GL.PushMatrix();
GL.Translate(Position.X, Position.Y, 0);
GL.Color4(System.Drawing.Color.White);
GL.Begin(PrimitiveType.Quads);
GL.TexCoord2(-1, -1);
GL.Vertex3(-Width, -Height, 0);
GL.TexCoord2(0, -1);
GL.Vertex3(Width, -Height, 0);
GL.TexCoord2(0, 0);
GL.Vertex3(Width, Height, 0);
GL.TexCoord2(-1, 0);
GL.Vertex3(-Width, Height, 0);
GL.End();
GL.PopMatrix();
}
}
public void AddRectangle(float Width, float Height, Vector2 Position) {
Drawables.Add(new Rectangle2D(Width, Height, Position));
}
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}
}