protected override void Draw()
{
base.Draw();
//camera matrix moves translates world space in relation to camera position
Matrix cameraMatrix = Matrix.CreateTranslation(CameraLocation);
//zoom matrix scales up everything in world space
Matrix zoomMatrix = Matrix.CreateScale(ZoomLevel);
//center matrix repositions camera within zoomed space
Matrix centerMatrix = Matrix.CreateTranslation(new Vector3(centerPoint, 0));
Matrix transformMatrix = cameraMatrix * zoomMatrix * centerMatrix;
Editor.graphics.Clear(background);
Editor.spriteBatch.Begin();
DrawGrid();
Editor.spriteBatch.End();
if (ZoomLevel >= 1)
{
Editor.spriteBatch.Begin(samplerState: SamplerState.PointClamp, transformMatrix: transformMatrix);
}
else
{
Editor.spriteBatch.Begin(transformMatrix: transformMatrix);
}
PreviewSprite?.Draw(Editor.spriteBatch, SpriteSheet, Vector2.Zero, Color.White);
Editor.spriteBatch.End();
}
protected override void Update(GameTime gameTime)
{
base.Update(gameTime);
MouseControl();
if (Playing && PreviewSprite != null)
{
if (!PreviewSprite.CurrentAnimation.IsLooping && PreviewSprite.CurrentFrameIndex == PreviewSprite.CurrentAnimation.Frames.Count() - 1)
{
OnAnimationEnded(new EventArgs());
}
else
{
PreviewSprite.Update(gameTime);
OnFrameChanged(new EventArgs());
}
}
}
