bbiwarg-original/bbiwarg/Graphics/Point.cs

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using OpenTK.Graphics.OpenGL;

namespace bbiwarg.Graphics
{
    class Point : IGraphicElement
    {
        public Vertex position;
        public Color color;
        public float size;

        public Point(Vertex position, Color color, float size) {
            this.position = position;
            this.color = color;
            this.size = size;
        }

        public void draw(int width, int height) {
            GL.Color4(color);

            float relX = position.x - width/2;
            float relY = height/2-position.y;

            GL.Begin(BeginMode.Polygon);
            GL.Vertex3(relX - size, relY + size, -position.z);
            GL.Vertex3(relX + size, relY + size, -position.z);
            GL.Vertex3(relX + size, relY - size, -position.z);
            GL.Vertex3(relX - size, relY - size, -position.z);
            GL.End();
        }
    }
}