public TestSpriteClassState(TextureManager textureManager)
{
_textureManager = textureManager;
_testSprite.Texture = _textureManager.Get("face_alpha");
_testSprite.SetHeight(256*0.5f);
_testSprite2.Texture = _textureManager.Get("face_alpha");
_testSprite2.SetPosition(-256, -256);
_testSprite2.SetColor(new Color(1, 0, 0, 1));
}
public TestSpriteClassState(TextureManager textureManager)
{
_textureManager = textureManager;
_testSprite.Texture = _textureManager.Get("face_alpha");
_testSprite.SetHeight(256 * 0.5f);
_testSprite2.Texture = _textureManager.Get("face_alpha");
_testSprite2.SetPosition(-256, -256);
_testSprite2.SetColor(new Color(1, 0, 0, 1));
}
public void Render()
{
double height = 200;
double width = 200;
var halfHeight = height / 2;
var halfWidth = width / 2;
double x = 0,
y = 0,
z = 0;
float topUV = 0;
float bottomUV = 1;
float leftUV = 0;
float rightUV = 1;
float red = 1;
float green = 0;
float blue = 0;
float alpha = 1;
var texture = _textureManager.Get("face_alpha");
GL.Enable(EnableCap.Texture2D);
GL.BindTexture(TextureTarget.Texture2D, texture.Id);
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
GL.ClearColor(0f, 0f, 0f, 1f);
GL.Clear(ClearBufferMask.ColorBufferBit);
GL.Begin(PrimitiveType.Triangles);
{
GL.Color4(red, green, blue, alpha);
GL.TexCoord2(leftUV, topUV);
GL.Vertex3(x - halfWidth, y + halfHeight, z); //top left
GL.TexCoord2(rightUV, topUV);
GL.Vertex3(x + halfWidth, y + halfHeight, z); //top right
GL.TexCoord2(leftUV, bottomUV);
GL.Vertex3(x - halfWidth, y - halfHeight, z); //bottom left
GL.TexCoord2(rightUV, topUV);
GL.Vertex3(x + halfWidth, y + halfHeight, z); //top right
GL.TexCoord2(rightUV, bottomUV);
GL.Vertex3(x + halfWidth, y - halfHeight, z); //bottom right
GL.TexCoord2(leftUV, bottomUV);
GL.Vertex3(x - halfWidth, y - halfHeight, z); //bottom left
}
GL.End();
}