public void Begin()
{
GL.Disable(EnableCap.DepthTest);
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.One, BlendingFactorDest.One);
GL.EnableClientState(ArrayCap.VertexArray);
GL.EnableClientState(ArrayCap.ColorArray);
GL.EnableClientState(ArrayCap.TextureCoordArray);
GL.BindBuffer(BufferTarget.ArrayBuffer, fontVertexBuffer);
GL.VertexPointer(3, VertexPointerType.Float, 24, IntPtr.Zero);
GL.ColorPointer(4, ColorPointerType.UnsignedByte, 24, (IntPtr)12);
GL.TexCoordPointer(2, TexCoordPointerType.Float, 24, (IntPtr)16);
Render.SetWorld(ref world);
Render.SetView(ref view);
Render.SetProjection(ref projection);
Render.EnableTexture = true;
Render.Texture = textureHandle;
}
public void Draw(float x, float y, float z, float scaleX, float scaleY, string text, Color color)
{
int fontValue, textLength, textBufferLength, fontColor;
float u, v, translation, fontSizeX, fontSizeY, fontWidth, fontHeight, fontMargin;
Matrix4 fontTranslation, fontWorld;
Render.GetWorld(ref world);
Matrix4.CreateTranslation(x, y, 0.0f, out fontTranslation);
Matrix4.Mult(ref world, ref fontTranslation, out fontWorld);
Render.SetWorld(ref fontWorld);
translation = 0.0f;
fontSizeX = 16 * scaleX;
fontSizeY = 16 * scaleY;
fontWidth = 1.0f / 16.0f;
fontHeight = 1.0f / 16.0f;
fontMargin = 1.0f / 256.0f;
fontColor = color.ToArgb();
for (int i = 0, j = 0; i < text.Length; i++, j += 4)
{
fontValue = (int)text[i];
u = (float)(fontValue % 16) * fontWidth + fontMargin;
v = (float)(fontValue >> 4) * fontHeight + fontMargin;
fontVertices[j].Position.X = translation;
fontVertices[j].Position.Y = 0.0f;
fontVertices[j].Position.Z = z;
fontVertices[j].TextureCoordinate.X = u;
fontVertices[j].TextureCoordinate.Y = v + fontHeight;
fontVertices[j].Color = fontColor;
fontVertices[j + 1].Position.X = fontSizeX + translation;
fontVertices[j + 1].Position.Y = 0.0f;
fontVertices[j + 1].Position.Z = z;
fontVertices[j + 1].TextureCoordinate.X = u + fontWidth;
fontVertices[j + 1].TextureCoordinate.Y = v + fontHeight;
fontVertices[j + 1].Color = fontColor;
fontVertices[j + 2].Position.X = translation;
fontVertices[j + 2].Position.Y = fontSizeY;
fontVertices[j + 2].Position.Z = z;
fontVertices[j + 2].TextureCoordinate.X = u;
fontVertices[j + 2].TextureCoordinate.Y = v;
fontVertices[j + 2].Color = fontColor;
fontVertices[j + 3].Position.X = fontSizeX + translation;
fontVertices[j + 3].Position.Y = fontSizeY;
fontVertices[j + 3].Position.Z = z;
fontVertices[j + 3].TextureCoordinate.X = u + fontWidth;
fontVertices[j + 3].TextureCoordinate.Y = v;
fontVertices[j + 3].Color = fontColor;
translation += fontTranslations[fontValue] * scaleX;
}
textLength = text.Length << 2;
textBufferLength = 24 * textLength;
Render.Apply();
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)textBufferLength, IntPtr.Zero, BufferUsageHint.DynamicDraw);
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)textBufferLength, fontVertices, BufferUsageHint.DynamicDraw);
GL.DrawArrays(PrimitiveType.TriangleStrip, 0, textLength);
Render.SetWorld(ref world);
}
void Draw(DrawMethodArgs args)
{
PhysicsScene scene = demo.Engine.Factory.PhysicsSceneManager.Get(args.OwnerSceneIndex);
PhysicsObject objectBase = scene.Factory.PhysicsObjectManager.Get(args.OwnerIndex);
PhysicsObject physicsObjectWithCamera = scene.GetPhysicsObjectWithCamera(0);
if (physicsObjectWithCamera == null)
{
return;
}
PhysicsCamera activeCamera = physicsObjectWithCamera.Camera;
if (activeCamera == null)
{
return;
}
float time = args.Time;
if ((infoScreen == null) || (infoDescription == null))
{
return;
}
if (!infoDescription.EnableDrawing)
{
return;
}
string sceneScreenName = infoScreen.Material.UserDataStr;
if (sceneScreenName == null)
{
return;
}
if (!demo.Descriptions.ContainsKey(sceneScreenName))
{
return;
}
List <string> Descriptions = demo.Descriptions[sceneScreenName];
string info = null;
infoDescription.MainWorldTransform.GetPosition(ref position);
activeCamera.View.GetViewMatrix(ref view);
activeCamera.Projection.GetProjectionMatrix(ref projection);
RenderPCT render = demo.DemoFont3D.Render;
render.SetWorld(ref world);
render.SetView(ref view);
render.SetProjection(ref projection);
GL.CullFace(CullFaceMode.Back);
demo.DemoFont3D.Begin();
for (int i = 0; i < Descriptions.Count; i++)
{
info = Descriptions[i];
if (info != null)
{
demo.DemoFont3D.Draw(position.X - 25.0f, position.Y + 12.0f - 1.4f * i, position.Z - 0.5f, 0.08125f, 0.12125f, info, whiteColor);
}
}
demo.DemoFont3D.End();
}
