Ejemplo n.º 1
0
    public void Draw()
    {
        GL.Color(new Color(var_4, var_5, var_6, var_7));
        GL.TexCoord3(var_1, var_2, var_3);

        Vector2 edgeAWorld = leftEdge;
        Vector2 edgeBWorld = rightEdge;

        Vector2 edgeALocal = leftEdgeLocal;
        Vector2 edgeBLocal = rightEdgeLocal;

        float lightDirection = (float)Math.Atan2((edgeAWorld.y + edgeBWorld.y) / 2, (edgeAWorld.x + edgeBWorld.x) / 2) * Mathf.Rad2Deg;
        float EdgeDirection  = (float)Math.Atan2(edgeALocal.y - edgeBLocal.y, edgeALocal.x - edgeBLocal.x) * Mathf.Rad2Deg - 180;

        lightDirection -= EdgeDirection;
        lightDirection  = (lightDirection + 720) % 360;


        if (lightDirection > 180)
        {
            GL.Vertex3(projectedMiddle.x, projectedMiddle.y, 0);
            GL.Vertex3(edgeMiddle.x, edgeMiddle.y, 0);
            GL.Vertex3(leftEdge.x, leftEdge.y, 0);

            GL.Vertex3(projectedMiddle.x, projectedMiddle.y, 0);
            GL.Vertex3(edgeMiddle.x, edgeMiddle.y, 0);
            GL.Vertex3(rightEdge.x, rightEdge.y, 0);
        }

        Vector2?fullResult = Math2D.GetPointLineIntersectLine3(leftEdge, leftCoreOutToEdge, rightEdge, rightCoreInToEdge);

        if (fullResult != null)
        {
            GL.Vertex3(fullResult.Value.x, fullResult.Value.y, 0);
            GL.Vertex3(rightCoreInToEdge.x, rightCoreInToEdge.y, 0);
            GL.Vertex3(leftCoreOutToEdge.x, leftCoreOutToEdge.y, 0);
        }
        else
        {
            Vector2?leftResult = Math2D.GetPointLineIntersectLine3(edgeMiddle, projectedMiddle, rightEdge, rightCoreInToEdge);
            if (leftResult != null)
            {
                GL.Vertex3(projectedMiddle.x, projectedMiddle.y, 0);
                GL.Vertex3(rightCoreInToEdge.x, rightCoreInToEdge.y, 0);
                GL.Vertex3(leftResult.Value.x, leftResult.Value.y, 0);

                GL.Vertex3(rightEdge.x, rightEdge.y, 0);
                GL.Vertex3(leftEdge.x, leftEdge.y, 0);
                GL.Vertex3(leftCoreOutToEdge.x, leftCoreOutToEdge.y, 0);

                GL.Vertex3(rightEdge.x, rightEdge.y, 0);
                GL.Vertex3(leftResult.Value.x, leftResult.Value.y, 0);
                GL.Vertex3(leftCoreOutToEdge.x, leftCoreOutToEdge.y, 0);

                GL.Vertex3(projectedMiddle.x, projectedMiddle.y, 0);
                GL.Vertex3(leftCoreOutToEdge.x, leftCoreOutToEdge.y, 0);
                GL.Vertex3(leftResult.Value.x, leftResult.Value.y, 0);
            }
            else
            {
                Vector2?rightResult = Math2D.GetPointLineIntersectLine3(edgeMiddle, projectedMiddle, leftEdge, leftCoreOutToEdge);

                if (rightResult != null)
                {
                    GL.Vertex3(rightCoreInToEdge.x, rightCoreInToEdge.y, 0);
                    GL.Vertex3(leftEdge.x, leftEdge.y, 0);
                    GL.Vertex3(rightEdge.x, rightEdge.y, 0);

                    GL.Vertex3(projectedMiddle.x, projectedMiddle.y, 0);
                    GL.Vertex3(rightCoreInToEdge.x, rightCoreInToEdge.y, 0);
                    GL.Vertex3(leftEdge.x, leftEdge.y, 0);

                    GL.Vertex3(projectedMiddle.x, projectedMiddle.y, 0);
                    GL.Vertex3(rightResult.Value.x, rightResult.Value.y, 0);
                    GL.Vertex3(leftEdge.x, leftEdge.y, 0);

                    GL.Vertex3(projectedMiddle.x, projectedMiddle.y, 0);
                    GL.Vertex3(rightResult.Value.x, rightResult.Value.y, 0);
                    GL.Vertex3(leftCoreOutToEdge.x, leftCoreOutToEdge.y, 0);
                }
                else
                {
                    if (lightDirection > 180)
                    {
                        GL.Vertex3(projectedMiddle.x, projectedMiddle.y, 0);
                        GL.Vertex3(rightCoreInToEdge.x, rightCoreInToEdge.y, 0);
                        GL.Vertex3(rightEdge.x, rightEdge.y, 0);

                        GL.Vertex3(projectedMiddle.x, projectedMiddle.y, 0);
                        GL.Vertex3(leftCoreOutToEdge.x, leftCoreOutToEdge.y, 0);
                        GL.Vertex3(leftEdge.x, leftEdge.y, 0);
                    }
                }
            }
        }
    }