/// <summary>
/// Returns color of normal
/// </summary>
/// <param name="c"></param>
/// <param name="normals"></param>
/// <param name="material"></param>
/// <returns></returns>
private Color GetNormalColor(LVDCollision c, Vector2 normals, LVDCollisionMaterial material)
{
float angle = (float)(Math.Atan2(normals.Y, normals.X) * 180 / Math.PI);
if (c.PassThrough)
{
return(Color.FromArgb(128, Color.Yellow));
}
else if (material.GetFlag(4) && ((angle <= 0 && angle >= -70) || (angle <= -110 && angle >= -180) || angle == 180))
{
return(Color.FromArgb(128, Color.Purple));
}
else if ((angle <= 0 && angle >= -70) || (angle <= -110 && angle >= -180) || angle == 180)
{
return(Color.FromArgb(128, Color.Lime));
}
else if (normals.Y < 0)
{
return(Color.FromArgb(128, Color.Red));
}
else
{
return(Color.FromArgb(128, Color.Cyan));
}
}
/// <summary>
/// deletes lvdvector2
/// </summary>
/// <param name="v"></param>
private void DeleteVertex(LVDVector2 v)
{
LVDCollision remove = null;
foreach (var col in LVD.Collisions)
{
int index = col.Vertices.IndexOf(v);
if (index == -1)
{
continue;
}
if (index >= 1)
{
PropertyGrid.SelectedObject = col.Vertices[index - 1];
}
if (col.Normals.Count > 0)
{
if (index == col.Normals.Count)
{
col.Normals.RemoveAt(index - 1);
col.Materials.RemoveAt(index - 1);
}
else
{
col.Normals.RemoveAt(index);
col.Materials.RemoveAt(index);
}
}
col.Vertices.RemoveAt(index);
if (index == col.Vertices.Count)
{
index--;
}
if (col.Normals.Count > 0 && index > 0)
{
col.Normals[index - 1] = LVDVector2.GenerateNormal(col.Vertices[index - 1], col.Vertices[index]);
}
if (col.Vertices.Count < 2)
{
remove = col;
}
break;
}
// remove collision that is marked for removal
if (remove != null)
{
LVD.Collisions.Remove(remove);
RefreshNodes();
}
}
/// <summary>
/// Renders a collision wall
/// </summary>
/// <param name="col"></param>
/// <param name="p1"></param>
/// <param name="p2"></param>
/// <param name="mat"></param>
/// <param name="normal"></param>
private void RenderWall(LVDCollision col, LVDVector2 p1, LVDVector2 p2, LVDCollisionMaterial mat, Vector2 normal)
{
Vector2 v1 = new Vector2(p1.X, p1.Y);
Vector2 v2 = new Vector2(p2.X, p2.Y);
Vector2 mid = (v1 + v2) / 2;
Vector2 nrm = mid + normal * 3;
Vector3 p1Color = GetElementColor(p1);
Vector3 p2Color = GetElementColor(p2);
if (PropertyGrid.SelectedObject == col)
{
p1Color = FlashColor;
p2Color = FlashColor;
}
// material
var materialColor = GetMatlColor(mat);
GL.Color4(materialColor.R / 255f, materialColor.G / 255f, materialColor.B / 255f, 0.75f);
GL.Begin(PrimitiveType.Quads);
GL.Vertex3(p1.X, p1.Y, 0);
GL.Vertex3(p1.X, p1.Y, -PlatformWidth);
GL.Vertex3(p2.X, p2.Y, -PlatformWidth);
GL.Vertex3(p2.X, p2.Y, 0);
GL.End();
GL.LineWidth(2f);
GL.Begin(PrimitiveType.Lines);
// point line 1
GL.Color3(p1Color);
GL.Vertex3(v1.X, v1.Y, 0);
GL.Color3(p1Color);
GL.Vertex3(v1.X, v1.Y, -PlatformWidth);
// point line 2
GL.Color3(p2Color);
GL.Vertex3(v2.X, v2.Y, 0);
GL.Color3(p2Color);
GL.Vertex3(v2.X, v2.Y, -PlatformWidth);
// front line
GL.Color3(p1Color);
GL.Vertex3(v1.X, v1.Y, 0);
GL.Color3(p2Color);
GL.Vertex3(v2.X, v2.Y, 0);
// back line
GL.Color3(p1Color);
GL.Vertex3(v1.X, v1.Y, -PlatformWidth);
GL.Color3(p2Color);
GL.Vertex3(v2.X, v2.Y, -PlatformWidth);
// normal
GL.Color3(GetNormalColor(col, normal, mat));
GL.Vertex3(mid.X, mid.Y, -PlatformWidth / 2);
GL.Color3(GetNormalColor(col, normal, mat));
GL.Vertex3(nrm.X, nrm.Y, -PlatformWidth / 2);
GL.End();
}
