public Graphics(int x, int y, int width, int height, int refreshRate)
{
//Create new GameWindow object with specified width and height
this.window = new GameWindow(width, height);
//Set window position on screen
this.window.Location = new Point(x, y);
//Set refresh rate (Hz)
this.window.TargetUpdateFrequency = refreshRate;
//Create references to this classes methods
//Function pointers!
//I'll haunt you with pointers even in C#
this.window.Load += this.Load;
this.window.UpdateFrame += this.Update;
this.window.RenderFrame += this.Draw;
this.window.Resize += this.Resize;
this.window.KeyUp += this.KeyboardKeyUp;
this.glyphManager = new GlyphManager(6, 4);
this.renderQueue = new RenderQueue();
this.renderQueue.AddEntity(this.glyphManager);
//Start it up!
this.window.Run(refreshRate);
}
//Render all glyphs, from a glyph manager
private void Render_Glyphs(GlyphManager glyphs)
{
//Remember, screenspace is 0.0f -> 1.0f left to right, and 0.0f -> 1.0f up to down
for (int line = 0; line < glyphs.GetMaxLines(); line++)
{
for (int position = 0; position < glyphs.GetMaxCharacters(); position++)
{
Glyph currentGlyph = glyphs.GetGlyphs()[line, position];
if (currentGlyph == Glyph.GLYPH_NULL || currentGlyph == null)
{
continue;
}
else
{
GL.MatrixMode(MatrixMode.Modelview);
GL.PushMatrix();
GL.LoadIdentity();
//Offsets; for translation
float offsetX = (position * (2 * glyphs.glyphWidth)) + glyphs.glyphWidth;
float offsetY = (line * (2 * glyphs.glyphHeight)) + glyphs.glyphHeight;
//UV pairs
float u0, v0, u1, v1, u2, v2, u3, v3;
u0 = currentGlyph.U0;
v0 = currentGlyph.V0;
u1 = currentGlyph.U0 + GlyphManager.glyphUVWidth;
v1 = currentGlyph.V0;
u2 = currentGlyph.U0 + GlyphManager.glyphUVWidth;
v2 = currentGlyph.V0 + GlyphManager.glyphUVHeight;
u3 = currentGlyph.U0;
v3 = currentGlyph.V0 + GlyphManager.glyphUVHeight;
GL.Translate(offsetX, offsetY, 0.0f);
GL.Scale(glyphs.glyphWidth, glyphs.glyphHeight, 1.0f);
GL.Rotate(-90.0f, 0.0f, 0.0f, 1.0f);
GL.Begin(PrimitiveType.Quads);
GL.Vertex3(-1.0f, -1.0f, 0.0f);
GL.TexCoord2(u0, v0);
//GL.TexCoord2(0.0f, 0.0f);
GL.Vertex3(1.0f, -1.0f, 0.0f);
GL.TexCoord2(u1, v1);
//GL.TexCoord2(1.0f, 0.0f);
GL.Vertex3(1.0f, 1.0f, 0.0f);
GL.TexCoord2(u2, v2);
//GL.TexCoord2(1.0f, 1.0f);
GL.Vertex3(-1.0f, 1.0f, 0.0f);
GL.TexCoord2(u3, v3);
//GL.TexCoord2(0.0f, 1.0f);
GL.End();
GL.PopMatrix();
ErrorCode e = GL.GetError();
if (e != 0)
{
throw new System.Exception(e.ToString());
}
}
}
}
}