public void Draw(Matrix4 transform, oGeometry geometry, int texture, int pgmID)
{
//Makes sure that the correct shader is bound for current entity
if (currentShader != pgmID)
{
BindShader(pgmID);
currentShader = pgmID;
}
else
{
GL.UseProgram(currentShader);
}
GL.Uniform1(uniform_stex, 0);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, texture);
GL.Enable(EnableCap.Texture2D);
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
GL.Viewport(clientRectangle);
//Calculates and passes world view projection matrix to the shader
Matrix4 worldViewProjection = transform * camera.View * camera.Projection;
GL.UniformMatrix4(uniform_mview, false, ref worldViewProjection);
//Renders entity
geometry.Render();
//Clears the vertex array and shader program
GL.BindVertexArray(0);
GL.UseProgram(0);
}
public static oGeometry LoadGeometry(string filename)
{
oGeometry geometry;
geometryDictionary.TryGetValue(filename, out geometry);
if (geometry == null)
{
geometry = new oGeometry();
geometry.LoadObject(filename);
geometryDictionary.Add(filename, geometry);
}
return(geometry);
}
public void OnAction()
{
foreach (oEntity entity in entityList)
{
//Retrieves list of components from current entity
List <IComponent> components = entity.Components;
//Retrieves geometry component from current entity
IComponent geometryComponent = components.Find(delegate(IComponent component)
{
return(component.ComponentMask == ComponentMasks.COMPONENT_GEOMETRY);
});
oGeometry geometry = ((cGeometry)geometryComponent).Geometry();
//Retrieves transform component from current entity
IComponent transformComponent = components.Find(delegate(IComponent component)
{
return(component.ComponentMask == ComponentMasks.COMPONENT_TRANSFORM);
});
//Sets transform if not already set, and retrieves transform value
if (((cTransform)transformComponent).SetTransform == false)
{
SetTransform((cTransform)transformComponent);
((cTransform)transformComponent).SetTransform = true;
}
Matrix4 transform = ((cTransform)transformComponent).Transform;
//Retrieves texture component from current entity
IComponent textureComponent = components.Find(delegate(IComponent component)
{
return(component.ComponentMask == ComponentMasks.COMPONENT_TEXTURE);
});
int texture = ((cTexture)textureComponent).Texture;
//Retrieves shader component from current entity
IComponent shaderComponent = components.Find(delegate(IComponent component)
{
return(component.ComponentMask == ComponentMasks.COMPONENT_SHADER);
});
int pgmID = ((cShader)shaderComponent).PgmID;
Draw(transform, geometry, texture, pgmID);
}
}
public cGeometry(string geometryName)
{
this.geometry = mResource.LoadGeometry(geometryName);
}
