public override void Render()
{
GL.Viewport(0, 0, MainGameWindow.Window.Width, MainGameWindow.Window.Height);
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
Perspective(60.0f, (float)MainGameWindow.Window.Width / (float)MainGameWindow.Window.Height, 0.01f, 1000.0f);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
LookAt(10.0f, 4.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
grid.Render();
GL.PushMatrix();
{
GL.Color3(1.0f, 0.0f, 0.0f);
Matrix4 scale = Matrix4.Scale(new Vector3(0.5f, 0.5f, 0.5f));
Matrix4 rotation = Matrix4.AngleAxis(45.0f, 1.0f, 0.0f, 0.0f);
Matrix4 translation = Matrix4.Translate(new Vector3(-2.0f, 1.0f, 3.0f));
Matrix4 model = translation * rotation * scale;
GL.MultMatrix(Matrix4.Transpose(model).Matrix);
DrawCube();
}
GL.PopMatrix();
}
public void Pivot(float yaw, float pitch)
{
worldDirty = true;
viewDirty = true;
Matrix4 yawAngle = Matrix4.AngleAxis(yaw, up.X, up.Y, up.Z);
forward = Matrix4.MultiplyVector(yawAngle, forward);
Matrix4 pitchAngle = Matrix4.AngleAxis(pitch, right.X, right.Y, right.Z);
forward = Matrix4.MultiplyVector(pitchAngle, forward);
forward = Vector3.Normalize(forward);
right = Vector3.Normalize(right);
up = Vector3.Normalize(up);
}
protected void DrawPlanets(float worldX, float worldY, float worldZ, MatrixStack stack)
{
stack.Push();
{
GL.Color3(1.0f, 1.0f, 0.0f);
//sun
Matrix4 scale = Matrix4.Scale(new Vector3(0.5f, 0.5f, 0.5f));
Matrix4 translation = Matrix4.Translate(new Vector3(worldX, worldY, worldZ));
Matrix4 model = translation * scale;
stack.Mul(model);
GL.LoadMatrix(stack.OpenGL);
Circle.DrawSphere(3);
stack.Push();
{
GL.Color3(0.0f, 1.0f, 0.0f);
//first planet
Matrix4 p1scale = Matrix4.Scale(new Vector3(0.8f, 0.8f, 0.8f));
Matrix4 p1rotation = Matrix4.AngleAxis(planet1RotSpeed, 0.0f, 1.0f, 1.0f);
Matrix4 p1translation = Matrix4.Translate(new Vector3(-2.5f, 0.5f, 0.0f));
Matrix4 planet = p1rotation * p1translation * p1scale;
stack.Mul(planet);
GL.LoadMatrix(stack.OpenGL);
Circle.DrawSphere(1);
stack.Push();
{
//draw planet1 moon
GL.Color3(1.0f, 0.0f, 0.0f);
Matrix4 m1Scale = Matrix4.Scale(new Vector3(0.5f, 0.5f, 0.5f));
Matrix4 m1Rotation = Matrix4.AngleAxis(moon1RotSpeed, 0.0f, 1.0f, 0.0f);
Matrix4 m1Translation = Matrix4.Translate(new Vector3(-2.0f, 0.0f, 0.0f));
Matrix4 moon = m1Rotation * m1Translation * m1Scale;
stack.Mul(moon);
GL.LoadMatrix(stack.OpenGL);
Circle.DrawSphere(1);
}
stack.Pop();
}//end first planet
stack.Pop();
stack.Push();
{
//second planet
GL.Color3(0.0f, 0.0f, 1.0f);
Matrix4 pscale = Matrix4.Scale(new Vector3(0.8f, 0.8f, 0.8f));
Matrix4 protation = Matrix4.AngleAxis(planet2RotSpeed, 0.0f, 1.0f, 0.0f);
Matrix4 ptranslation = Matrix4.Translate(new Vector3(12.0f, 0.5f, 0.0f));
Matrix4 planet = protation * ptranslation * pscale;
stack.Mul(planet);
GL.LoadMatrix(stack.OpenGL);
Circle.DrawSphere(1);
stack.Push();
{
//draw planet1 moon
GL.Color3(0.5f, 1.0f, 1.0f);
Matrix4 mScale = Matrix4.Scale(new Vector3(0.5f, 0.5f, 0.5f));
Matrix4 mRotation = Matrix4.AngleAxis(moon2RotSpeed, 1.0f, 1.0f, 1.0f);
Matrix4 mTranslation = Matrix4.Translate(new Vector3(2.0f, 0.0f, 0.0f));
Matrix4 moon = mRotation * mTranslation * mScale;
stack.Mul(moon);
GL.LoadMatrix(stack.OpenGL);
Circle.DrawSphere(1);
}
stack.Pop();
}
stack.Pop();
}
}