public override void Render(float deltaTime)
{
var deltaX = PrevX + (X - PrevX) * deltaTime;
var deltaY = PrevY + (Y - PrevY) * deltaTime;
var deltaSize = PrevSize + (Size - PrevSize) * deltaTime;
var deltaAlpha = Math.Min(1, Math.Max(0, PrevAlpha + (Alpha - PrevAlpha) * deltaTime));
var deltaAngle = PrevAngle + (Angle - PrevAngle) * deltaTime;
var c = Hue.Create(deltaX / Game.Instance.Width * 360);
// GL.PushAttrib(AttribMask.LineBit);
GL.PushMatrix();
//GL.LineWidth(deltaSize / StartSize);
GL.Translate(deltaX, deltaY, 0);
GL.Rotate(deltaAngle, 0, 0, 1);
GL.Scale(deltaSize, deltaSize, 0);
GL.Begin(PrimitiveType.Polygon);
GL.Color4(c.X, c.Y, c.Z, deltaAlpha * 0.15);
VertexUtil.PutCircle(0, 0, 1, 20);
GL.End();
GL.Begin(PrimitiveType.LineLoop);
GL.Color4(c.X, c.Y, c.Z, deltaAlpha);
VertexUtil.PutCircle(0, 0, 1, 20);
GL.End();
GL.PopMatrix();
//GL.PopAttrib();
}
protected override void OnRenderFrame(FrameEventArgs e)
{
if (!_canUpdate || _closing)
{
return;
}
_desktopFocused = IsDesktopFocused();
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
//GL.ClearColor(0, 0, 0, 0);
//GL.Enable(EnableCap.CullFace);
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
GL.BlendEquation(BlendEquationMode.FuncAdd);
//GL.CullFace(CullFaceMode.Back);
GL.LineWidth(1f);
var deltaTime = (float)_updateTimer.Elapsed.TotalMilliseconds / 50;
if (Settings.Default.DrawSineWave)
{
DrawSine(25, 25, 0.5f, Height, deltaTime);
}
_particleManager.Render(deltaTime);
var mouseDown = _down.Contains(MouseButtons.Left);
if (mouseDown)
{
_desktopFocused = IsDesktopFocused();
}
if (mouseDown && _desktopFocused)
{
if (Settings.Default.SpawnOnClick)
{
SpawnParticles(_lastMouse, 2);
}
if (Settings.Default.SelectionRect)
{
var color1 = Hue.Create(_lastMouseDown.X / (float)Width * 360);
var color2 = Hue.Create(_lastMouse.X / (float)Width * 360);
GL.LineWidth(2f);
GL.Begin(PrimitiveType.Polygon);
//filled rectangle
GL.Color4(color1.X, color1.Y, color1.Z, .2f);
GL.Vertex2(_lastMouseDown.X, _lastMouseDown.Y);
GL.Vertex2(_lastMouseDown.X, _lastMouse.Y);
GL.Color4(color2.X, color2.Y, color2.Z, .2f);
GL.Vertex2(_lastMouse.X, _lastMouse.Y);
GL.Vertex2(_lastMouse.X, _lastMouseDown.Y);
GL.End();
GL.Begin(PrimitiveType.LineLoop);
//outline
GL.Color4(color1.X, color1.Y, color1.Z, 1f);
GL.Vertex2(_lastMouseDown.X, _lastMouseDown.Y);
GL.Vertex2(_lastMouseDown.X, _lastMouse.Y);
GL.Color4(color2.X, color2.Y, color2.Z, 1f);
GL.Vertex2(_lastMouse.X, _lastMouse.Y);
GL.Vertex2(_lastMouse.X, _lastMouseDown.Y);
GL.End();
//the filled circles
GL.Color4(color1.X, color1.Y, color1.Z, 1f);
GL.Begin(PrimitiveType.Polygon);
VertexUtil.PutCircle(_lastMouseDown.X, _lastMouseDown.Y, 6, 16);
GL.End();
GL.Begin(PrimitiveType.Polygon);
VertexUtil.PutCircle(_lastMouseDown.X, _lastMouse.Y, 6, 16);
GL.End();
GL.Color4(color2.X, color2.Y, color2.Z, 1f);
GL.Begin(PrimitiveType.Polygon);
VertexUtil.PutCircle(_lastMouse.X, _lastMouse.Y, 6, 16);
GL.End();
GL.Begin(PrimitiveType.Polygon);
VertexUtil.PutCircle(_lastMouse.X, _lastMouseDown.Y, 6, 16);
GL.End();
}
}
SwapBuffers();
//glEnable GL_ALPHA_TEST
//glEnable GL_COLOR_MATERIAL
//Transparent-OpenGL-window
//glBlendFunc GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA
}