I'm totally mystified!
I'm using SFML.Net, and my entire window seems to have got flipped somehow on the Y axis?
The only thing I could see that could be causing it is RenderTextures - I'm rendering my entire game to a RenderTexture, then updating a Sprite's texture with it, scaling by 2 with smoothing off and then rendering the sprite - for pixelly scaling in a retro styled game
Somewhere along the way it's flipped the Y axis though! Am I doing this right (could this be done better with Views?) - and do you have any idea what the issue is?
I've put my two classes dealing with rendering in code blocks below.
Code:
Game.cs:
class Game
{ RenderWindow window
; List
<Entity
> entities
; Tilemap tilemap
; VertexArray verts
; RenderTexture buffer
; Sprite bufferSprite
; CircleShape circle
; private int[] tiles
= new int[] { 13,
3,
0,
5,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
2,
1,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
4,
0,
0,
0,
0,
0,
0,
2,
0,
0,
0,
0,
0,
1,
5,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
4,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
1,
0,
0,
0,
0,
0,
0,
0,
0,
7,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
3,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
1,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
4,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
45,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
2,
0 }; public Game
(RenderWindow window
) { this.window = window
; tilemap
= new Tilemap
(); tilemap
.LoadContent("res\\img\\tiles_packed.png", tiles
); entities
= new List
<Entity
>(); verts
= new VertexArray
(PrimitiveType
.Quads,
4); buffer
= new RenderTexture
(window
.Size.X / 2, window
.Size.Y / 2); buffer
.Smooth = false; circle
= new CircleShape
(50); circle
.FillColor = Color
.Green; circle
.Position = new Vector2f
(200,
50); bufferSprite
= new Sprite
(buffer
.Texture); //buffer. } public void Update
(float dt
) { //entities.Where(x => x is IUpdateable). for (int i
= 0; i
< entities
.Count; i
++) { entities
[i
].Update(dt
); } } public void Draw
() { window
.Clear(Color
.White); buffer
.Clear(Color
.White); for (int i
= 0; i
< entities
.Count; i
++) { entities
[i
].Draw(buffer
); } buffer
.Draw(tilemap
); buffer
.Draw(circle
); // scale buffer 2x //bufferSprite = new Sprite(buffer.Texture); bufferSprite
.Texture = buffer
.Texture; bufferSprite
.Scale = new Vector2f
(2,
2); //RenderStates states = new RenderStates() window
.Draw(bufferSprite
); //window.Draw(verts); } } Program.cs (contains entry point)
class Program
{ static void Main
(string[] args
) { RenderWindow window
; window
= new RenderWindow
(new VideoMode
(800,
600),
"Mine cart madness"); window
.Closed += Window_Closed
; float dt
= 1
.0f
/ 60
.0f
; float accumulator
= 0; Clock clock
= new Clock
(); Game game
= new Game
(window
); while (window
.IsOpen) { Time elapsed
= clock
.Restart(); float elapsedTime
= elapsed
.AsSeconds(); accumulator
+= elapsedTime
; while (accumulator
> dt
) { accumulator
-= dt
; window
.DispatchEvents(); game
.Update(dt
); } game
.Draw(); window
.Display(); } } private static void Window_Closed
(object sender, EventArgs e
) { ((RenderWindow
)sender
).Close(); } } Any ideas?
EDIT: output:
That circle is centred at 200, 50!
