/// <summary>
/// Loops through all active TackObjects and renders all QuadRenderer components
/// </summary>
private void RenderQuadRendererComponents()
{
GL.Enable(EnableCap.Texture2D);
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactor.One, BlendingFactor.OneMinusSrcAlpha);
GL.EnableClientState(ArrayCap.ColorArray);
GL.EnableClientState(ArrayCap.VertexArray);
GL.EnableClientState(ArrayCap.IndexArray);
GL.EnableClientState(ArrayCap.TextureCoordArray);
// Tell OpenGL to use teh default object shader
//GL.UseProgram(GetShader("shaders.default_world_shader", TackShaderType.World).Id);
TackObject[] allObjects = TackObject.Get();
List <TackObject> allObjectsWithQRComp = new List <TackObject>(allObjects.Where(x => x.GetComponent <QuadRenderer>() != null));
List <TackObject> orderedComponents = new List <TackObject>(allObjectsWithQRComp.OrderBy(x => x.GetComponent <QuadRenderer>().RenderLayer));
foreach (TackObject currentTackObject in orderedComponents)
{
// Continue with the loop if currentTackObject does not contain a QuadRenderer component
if (currentTackObject.GetComponent <QuadRenderer>() == null)
{
continue;
}
/*
* // Continue if TackObject is currently inactive
* if (currentTackObject.)
*/
QuadRenderer quadRenderer = currentTackObject.GetComponent <QuadRenderer>();
RectangleShape tackObjectBounds = new RectangleShape()
{
X = ((currentTackObject.Position.X - TackEngine.MainCamera.GetParent().Position.X) - (currentTackObject.Scale.X / 2)) / (TackEngine.ScreenWidth / 2),
Y = ((currentTackObject.Position.Y - TackEngine.MainCamera.GetParent().Position.Y) + (currentTackObject.Scale.Y / 2)) / (TackEngine.ScreenHeight / 2),
Width = (currentTackObject.Scale.X) / (TackEngine.ScreenWidth / 2),
Height = (currentTackObject.Scale.Y) / (TackEngine.ScreenHeight / 2)
};
/*
* v4 ------ v1
* | |
* | |
* | |
* v3 ------ v2
*
*/
//mVertexData = new float[32]
//{
// Position (XYZ) Colours (RGB) TexCoords (XY)
/* v1 */ //(tackObjectBounds.X + tackObjectBounds.Width), (tackObjectBounds.Y), 1.0f, (quadRenderer.Colour.R / 255), (quadRenderer.Colour.G / 255), (quadRenderer.Colour.B / 255), 1.0f, 0.0f,
/* v2 */ //(tackObjectBounds.X + tackObjectBounds.Width), (tackObjectBounds.Y - tackObjectBounds.Height), 1.0f, (quadRenderer.Colour.R / 255), (quadRenderer.Colour.G / 255), (quadRenderer.Colour.B / 255), 1.0f, 1.0f,
/* v3 */ //(tackObjectBounds.X), (tackObjectBounds.Y - tackObjectBounds.Height), 1.0f, (quadRenderer.Colour.R / 255), (quadRenderer.Colour.G / 255), (quadRenderer.Colour.B / 255), 0.0f, 1.0f,
/* v4 */ //(tackObjectBounds.X), (tackObjectBounds.Y), 1.0f, (quadRenderer.Colour.R / 255), (quadRenderer.Colour.G / 255), (quadRenderer.Colour.B / 255), 0.0f, 0.0f
//};
mVertexData = new float[32]
{
// Position (XYZ) Colours (RGB) TexCoords (XY)
/* v1 */ FindScreenCoordsFromPosition(quadRenderer.FindVertexPoint(1)).X, FindScreenCoordsFromPosition(quadRenderer.FindVertexPoint(1)).Y, 1.0f, (quadRenderer.Colour.R / 255.0f), (quadRenderer.Colour.G / 255.0f), (quadRenderer.Colour.B / 255.0f), 1.0f, 0.0f,
/* v2 */ FindScreenCoordsFromPosition(quadRenderer.FindVertexPoint(2)).X, FindScreenCoordsFromPosition(quadRenderer.FindVertexPoint(2)).Y, 1.0f, (quadRenderer.Colour.R / 255.0f), (quadRenderer.Colour.G / 255.0f), (quadRenderer.Colour.B / 255.0f), 1.0f, 1.0f,
/* v3 */ FindScreenCoordsFromPosition(quadRenderer.FindVertexPoint(3)).X, FindScreenCoordsFromPosition(quadRenderer.FindVertexPoint(3)).Y, 1.0f, (quadRenderer.Colour.R / 255.0f), (quadRenderer.Colour.G / 255.0f), (quadRenderer.Colour.B / 255.0f), 0.0f, 1.0f,
/* v4 */ FindScreenCoordsFromPosition(quadRenderer.FindVertexPoint(4)).X, FindScreenCoordsFromPosition(quadRenderer.FindVertexPoint(4)).Y, 1.0f, (quadRenderer.Colour.R / 255.0f), (quadRenderer.Colour.G / 255.0f), (quadRenderer.Colour.B / 255.0f), 0.0f, 0.0f
};
int[] indices = new int[]
{
0, 1, 3, // first triangle
1, 2, 3 // second triangle
};
//Sprite sp = Sprite.LoadFromFile("Resources/background_image.png");
//sp.Create(false);
int VAO = GL.GenVertexArray();
int VBO = GL.GenBuffer();
int EBO = GL.GenBuffer();
GL.BindVertexArray(VAO);
GL.BindBuffer(BufferTarget.ArrayBuffer, VBO);
GL.BufferData(BufferTarget.ArrayBuffer, sizeof(float) * 32, mVertexData, BufferUsageHint.StaticDraw);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, EBO);
GL.BufferData(BufferTarget.ElementArrayBuffer, sizeof(int) * 6, indices, BufferUsageHint.StaticDraw);
// position attribute
GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, 8 * sizeof(float), 0);
GL.EnableVertexAttribArray(0);
// color attribute
GL.VertexAttribPointer(1, 3, VertexAttribPointerType.Float, false, 8 * sizeof(float), 3 * sizeof(float));
GL.EnableVertexAttribArray(1);
// texture coord attribute
GL.VertexAttribPointer(2, 2, VertexAttribPointerType.Float, false, 8 * sizeof(float), 6 * sizeof(float));
GL.EnableVertexAttribArray(2);
// Set texture attributes
GL.ActiveTexture(TextureUnit.Texture0);
if (quadRenderer.RenderMode == RendererMode.SpriteSheet)
{
GL.BindTexture(TextureTarget.Texture2D, quadRenderer.SpriteSheet.GetActiveSprite().Id);
}
else
{
GL.BindTexture(TextureTarget.Texture2D, quadRenderer.Sprite.Id);
}
//GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, quadRenderer.Sprite.Width, quadRenderer.Sprite.Height, 0, PixelFormat.Bgra, PixelType.UnsignedByte, quadRenderer.Sprite.SpriteData.Scan0);
// set texture filtering parameters
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
// set the texture wrapping parameters
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.Repeat);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.Repeat);
GL.ActiveTexture(TextureUnit.Texture0);
if (quadRenderer.RenderMode == RendererMode.SpriteSheet)
{
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, quadRenderer.SpriteSheet.SingleSpriteWidth, quadRenderer.SpriteSheet.SingleSpriteHeight, 0, PixelFormat.Bgra, PixelType.UnsignedByte, (IntPtr)0); // changed the end value from sprite.bitmpadata.scan0
}
else
{
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, quadRenderer.Sprite.Width, quadRenderer.Sprite.Height, 0, PixelFormat.Bgra, PixelType.UnsignedByte, quadRenderer.Sprite.Data);
}
//GL.GenerateMipmap(GenerateMipmapTarget.Texture2D);
m_defaultWorldShader.Use();
m_defaultWorldShader.SetUniformValue("ourTexture", 0);
// Set the shader uniform value
//GL.Uniform1(GL.GetUniformLocation(GetShader("shaders.default_world_shader", TackShaderType.World).Id, "ourTexture"), 0);
GL.ActiveTexture(TextureUnit.Texture0);
if (quadRenderer.RenderMode == RendererMode.SpriteSheet)
{
GL.BindTexture(TextureTarget.Texture2D, quadRenderer.SpriteSheet.GetActiveSprite().Id);
}
else
{
GL.BindTexture(TextureTarget.Texture2D, quadRenderer.Sprite.Id);
}
GL.BindVertexArray(VAO);
GL.DrawElements(PrimitiveType.Triangles, 6, DrawElementsType.UnsignedInt, IntPtr.Zero);
//sp.Destory(false);
GL.DeleteBuffer(EBO);
GL.DeleteBuffer(VBO);
GL.DeleteVertexArray(VAO);
}
}
