/// <summary>
/// See individual fields for explanation on what they are and how to use them.
/// </summary>
public View(string id, Rectangle area, Rectangle viewport, bool active = true)
: base(id)
{
GameArea = area;
Viewport = viewport;
Active = active;
}
protected override void Recalculate()
{
float minX = float.PositiveInfinity, minY = float.PositiveInfinity, maxX = float.NegativeInfinity, maxY = float.NegativeInfinity;
for (int i = 0; i < _basePoints.Length; i++)
{
Points[i] = _Position + _basePoints[i].RotateOverOrigin(Point.Zero, _Rotation) * _Size;
if (Points[i].X < minX)
minX = Points[i].X;
if (Points[i].Y < minY)
minY = Points[i].Y;
if (Points[i].X > maxX)
maxX = Points[i].X;
if (Points[i].Y > maxY)
maxY = Points[i].Y;
if (i < _basePoints.Length - 1)
BoundLines[i] = new Line(Points[i], Points[i + 1]);
else
BoundLines[i] = new Line(Points[i], Points[0]);
PerpAxes[i] = BoundLines[i].GetPerpAxes()[0];
}
EnclosingRectangle = new Rectangle(minX, minY, maxX - minX, maxY - minY);
Changed = false;
}
/// <summary>
/// Draw the sprite projected on a rectangle.
/// </summary>
public void Draw(ComplexRectangle rect, int frameIndex = 0, int depth = 0)
{
if (!Loaded)
throw new NotLoadedException();
Rectangle sourceRect = new Rectangle(GetIndexLocation(frameIndex), FrameSize);
DrawX.DrawJobs.Add(new TextureDrawJob(depth, rect.GetEnclosingRectangle(), TextureHandle, sourceRect, rect));
}
/// <summary>
/// Texture job.
/// </summary>
public TextureDrawJob(int depth, Rectangle area, IntPtr texture, Rectangle sourceRect, ComplexRectangle destRect)
: this()
{
Texture = texture;
SourceRect = sourceRect;
DestRect = destRect;
Depth = depth;
Area = area;
}
/// <summary>
/// A teensy quadtree baby.
/// </summary>
private QuadTree(byte level, Rectangle bounds, List<PhysicalObject> objects)
{
byte level1 = level;
Rectangle bounds1 = bounds;
_center = bounds.Position + bounds.Size / 2f;
Point childSize = bounds.Size / 2f;
if (objects.Count > MaxObjects)
{
//decide in what childtree an object would fit and add it there
List<PhysicalObject> childObjects0 = new List<PhysicalObject>();
List<PhysicalObject> childObjects1 = new List<PhysicalObject>();
List<PhysicalObject> childObjects2 = new List<PhysicalObject>();
List<PhysicalObject> childObjects3 = new List<PhysicalObject>();
foreach (PhysicalObject obj in objects)
{
bool[] fits = FitObject(obj);
if (!fits[4])
{
if (fits[0])
childObjects0.Add(obj);
else if (fits[1])
childObjects1.Add(obj);
else if (fits[2])
childObjects2.Add(obj);
else
childObjects3.Add(obj);
}
else
_objects.Add(obj);
}
//create subtrees and add everything that fits inside of em
_children[0] = new QuadTree((byte)(level1 + 1), new Rectangle(bounds1.Position, childSize), childObjects0);
_children[1] = new QuadTree((byte)(level1 + 1), new Rectangle(new Point(_center.X, bounds1.Position.Y), childSize), childObjects1);
_children[2] = new QuadTree((byte)(level1 + 1), new Rectangle(new Point(bounds1.Position.X, _center.Y), childSize), childObjects2);
_children[3] = new QuadTree((byte)(level1 + 1), new Rectangle(_center, childSize), childObjects3);
}
else
_objects = objects;
}
private static void Draw()
{
//collect drawjobs
foreach (GameObject obj in Resources.Objects)
{
if (!obj.Destroyed)
obj.Draw();
}
DrawX.DrawJobs = DrawX.DrawJobs.OrderBy(job => job.Depth).ToList();
SDL.SDL_SetRenderDrawColor(RendererHandle, DrawX.BackgroundColor.R, DrawX.BackgroundColor.G, DrawX.BackgroundColor.B, DrawX.BackgroundColor.A);
SDL.SDL_RenderClear(RendererHandle);
foreach (View view in Resources.Get<View>())
{
if (!view.Active)
continue;
Rectangle absoluteGameArea = view.GetAbsoluteGameArea();
Rectangle absoluteViewport = view.GetAbsoluteViewport();
Point scale = view.GetScale();
SDL.SDL_RenderSetScale(RendererHandle, scale.X, scale.Y);
//viewport is affected by scale for whatever reason, correct it
Rectangle scaledViewport = new Rectangle(absoluteViewport);
scaledViewport.Position /= scale;
scaledViewport.Size /= scale;
SDL.SDL_Rect sdlViewport = (SDL.SDL_Rect)scaledViewport;
SDL.SDL_RenderSetViewport(RendererHandle, ref sdlViewport);
//get all jobs that will draw inside this view
foreach (IDrawJob job in DrawX.GetDrawJobsByArea(absoluteGameArea))
{
Type jobType = job.GetType();
if (jobType == typeof(TextureDrawJob)) //draw a texture
{
TextureDrawJob textureDrawJob = (TextureDrawJob)job;
SDL.SDL_Rect sourceRect = (SDL.SDL_Rect)textureDrawJob.SourceRect;
SDL.SDL_Rect destRect = (SDL.SDL_Rect)new Rectangle(textureDrawJob.DestRect.Position - absoluteGameArea.Position - textureDrawJob.DestRect.Origin, textureDrawJob.DestRect.Size);
if (textureDrawJob.DestRect.Rotation == 0f)
SDL.SDL_RenderCopy(RendererHandle, textureDrawJob.Texture, ref sourceRect, ref destRect);
else
{
SDL.SDL_Point origin = (SDL.SDL_Point)textureDrawJob.DestRect.Origin;
SDL.SDL_RenderCopyEx(RendererHandle, textureDrawJob.Texture, ref sourceRect, ref destRect, textureDrawJob.DestRect.Rotation, ref origin, SDL.SDL_RendererFlip.SDL_FLIP_NONE);
}
}
else if (jobType == typeof(LineDrawJob)) //draw line(s)
{
LineDrawJob lineDrawJob = (LineDrawJob)job;
//transform all points according to view and cast em
SDL.SDL_Point[] sdlPoints = Array.ConvertAll(lineDrawJob.Points, point => (SDL.SDL_Point)(point - absoluteGameArea.Position));
SDL.SDL_SetRenderDrawColor(RendererHandle, lineDrawJob.Color.R, lineDrawJob.Color.G, lineDrawJob.Color.B, lineDrawJob.Color.A);
SDL.SDL_RenderDrawLines(RendererHandle, sdlPoints, lineDrawJob.PointCount);
}
else //draw filledrect
{
FilledRectDrawJob rectDrawJob = (FilledRectDrawJob)job;
SDL.SDL_Rect rect = (SDL.SDL_Rect)(rectDrawJob.Area - absoluteGameArea.Position);
SDL.SDL_SetRenderDrawColor(RendererHandle, rectDrawJob.Color.R, rectDrawJob.Color.G, rectDrawJob.Color.B, rectDrawJob.Color.A);
SDL.SDL_RenderFillRect(RendererHandle, ref rect);
}
}
}
DrawX.DrawJobs.Clear();
//threadpool should take care of actually swapping the frames (RenderPresent may wait for things like Fraps or VSync)
RenderframeReady = true;
ThreadPool.QueueUserWorkItem(PresentRender);
}
protected override void Recalculate()
{
Points[0] = new Point(_Position.X - _origin.X, _Position.Y - _origin.Y).RotateOverOrigin(_Position, _Rotation);
Points[1] = new Point(_Position.X - _origin.X + _Size.X, _Position.Y - _origin.Y).RotateOverOrigin(_Position, _Rotation);
Points[2] = new Point(_Position.X - _origin.X + _Size.X, _Position.Y - _origin.Y + _Size.Y).RotateOverOrigin(_Position, _Rotation);
Points[3] = new Point(_Position.X - _origin.X, _Position.Y - _origin.Y + _Size.Y).RotateOverOrigin(_Position, _Rotation);
PerpAxes[0] = new Point((-Points[1].Y + Points[0].Y) / _Size.X, (Points[1].X - Points[0].X) / _Size.X);
PerpAxes[1] = new Point((-Points[2].Y + Points[1].Y) / _Size.Y, (Points[2].X - Points[1].X) / _Size.Y);
PerpAxes[2] = PerpAxes[0];
PerpAxes[3] = PerpAxes[1];
float minX = float.PositiveInfinity, minY = float.PositiveInfinity, maxX = float.NegativeInfinity, maxY = float.NegativeInfinity;
foreach (Point p in Points)
{
if (p.X < minX)
minX = p.X;
if (p.Y < minY)
minY = p.Y;
if (p.X > maxX)
maxX = p.X;
if (p.Y > maxY)
maxY = p.Y;
}
EnclosingRectangle = new Rectangle(minX, minY, maxX - minX, maxY - minY);
BoundLines = new Line[]
{
new Line(Points[0], Points[1]),
new Line(Points[1], Points[2]),
new Line(Points[2], Points[3]),
new Line(Points[3], Points[0])
};
Changed = false;
}
public Rectangle(Rectangle rect)
: this(rect._Position, rect._Size)
{
}
/// <summary>
/// The mother of all quadtrees.
/// </summary>
public QuadTree(Rectangle bounds)
: this(0, bounds, Resources.PhysicalObjects)
{
}
/// <summary>
/// Sets the area the bounds could maximally cover with the current SpeedVelocity (any direction).
/// Rectangle on x and y axes.
/// </summary>
internal void UpdateCoverableArea()
{
float minX = float.PositiveInfinity;
float minY = float.PositiveInfinity;
float maxX = float.NegativeInfinity;
float maxY = float.NegativeInfinity;
float speed = SpeedVelocity;
foreach (Point pnt in Bounds.GetPoints())
{
if (pnt.X < minX)
minX = pnt.X;
if (pnt.X > maxX)
maxX = pnt.X;
if (pnt.Y < minY)
minY = pnt.Y;
if (pnt.Y > maxY)
maxY = pnt.Y;
}
CoverableArea = new Rectangle(minX - speed, minY - speed, maxX - minX + speed, maxY - minY + speed);
}
protected override void Recalculate()
{
Points[0] = _Position;
Points[1] = _Position + _Size;
PerpAxes[0] = new Point((-Point2.Y + Point1.Y) / Length, (Point2.X - Point1.X) / Length);
float minX = float.PositiveInfinity, minY = float.PositiveInfinity, maxX = float.NegativeInfinity, maxY = float.NegativeInfinity;
foreach (Point p in Points)
{
if (p.X < minX)
minX = p.X;
if (p.Y < minY)
minY = p.Y;
if (p.X > maxX)
maxX = p.X;
if (p.Y > maxY)
maxY = p.Y;
}
EnclosingRectangle = new Rectangle(minX, minY, maxX - minX, maxY - minY);
Changed = false;
}
internal static List<IDrawJob> GetDrawJobsByArea(Rectangle area)
{
return DrawJobs.FindAll(j => j.Area.IntersectsWith(area));
}
public static void DrawFilledRect(Rectangle rect, Color color, int depth = 0)
{
DrawJobs.Add(new FilledRectDrawJob(depth, rect, color));
}