I don't think I got you there, please give a complete and minimal example and at the same time please fully explain what the problem is. I really doubt this is an issue with SFML.
Busy narrowing things down. Will post it in a moment since the amount of code right now is over 400 lines in the main file and most of it is getting removed or moved about at the moment.
This is what I got with just what isn't in use edited out and after some huge amount of console spam it seems that if a sprite stays lined up with another for too long it gets set to null for some odd reason.
class SFMLMovementAndShootingTest
{ RenderWindow window
; View movingview
; Font exfont
; FullMovingSprite movingspriteplayer
; List
<FullMovingSprite
> spritelist
= new List
<FullMovingSprite
>(); Text extext, extext2, extext3
; Boolean forward
= false, breaking
= false, turnleft
= false, turnright
= false, firegun
= false; FullMovingSprite enemy, enemy2, enemy3, enemy4
; public SFMLMovementAndShootingTest
() { exfont
= new Font
("Fonts/00Starmap/00TT.TTF"); uint fontsize
= 15; extext
= new Text
("Player Pos: ", exfont,
15); extext2
= new Text
("Key Pressed: ", exfont, fontsize
); extext3
= new Text
("Key Released: ", exfont, fontsize
); movingspriteplayer
= new ShootingSprite
(ToSFMLTexture
(TestImages
.TestShip),
new Vector2f
(0,
0),
new Vector2f
(1,
0),
100); } public void StartSFMLProgram4
() { try { VideoMode vm
= new VideoMode
(800,
800); window
= new RenderWindow
(vm,
"SFML C# Moving and Shooting!"); movingview
= new View
(new FloatRect
(0,
0, vm
.Width, vm
.Height)); window
.SetView(movingview
); movingspriteplayer
.Position = new Vector2f
(0,
0); View viewcopyretarget
= window
.GetView(); viewcopyretarget
.Center = movingspriteplayer
.Position; window
.SetView(viewcopyretarget
); spritelist
.Add(movingspriteplayer
); enemy
= new FullMovingSprite
(ToSFMLTexture
(TestImages
.TestShip),
new Vector2f
(1000,
0),
new Vector2f
(10,
0),
55); enemy
.IsAIActive = true; spritelist
.Add(enemy
); enemy2
= new FullMovingSprite
(ToSFMLTexture
(TestImages
.TestShip),
new Vector2f
(-1000,
0),
new Vector2f
(-10,
0),
150); enemy2
.IsAIActive = true; spritelist
.Add(enemy2
); enemy3
= new FullMovingSprite
(ToSFMLTexture
(TestImages
.TestShip),
new Vector2f
(0,
1000),
new Vector2f
(0,
-10),
40); enemy3
.IsAIActive = true; spritelist
.Add(enemy3
); enemy4
= new FullMovingSprite
(ToSFMLTexture
(TestImages
.TestShip),
new Vector2f
(0,
-1000),
new Vector2f
(0,
10),
50); enemy4
.IsAIActive = true; spritelist
.Add(enemy4
); extext2
.Position = new Vector2f
(0,
30); extext3
.Position = new Vector2f
(0,
45); fpstext
.Position = new Vector2f
(0,
60); window
.Closed += new EventHandler
(OnClosed
); window
.KeyPressed += new EventHandler
<KeyEventArgs
>(KeyEventPressed
); window
.KeyReleased += new EventHandler
<KeyEventArgs
>(KeyEventReleased
); window
.SetFramerateLimit(60); while (window
.IsOpen()) { window
.DispatchEvents(); UpdateListOfSprites
(ref spritelist
); UpdateHUD
(ref window
); window
.Clear(); RenderListOfSprites
(ref window,
ref spritelist
); RenderHUD
(ref window
); window
.Display(); CheckConstantInputs
(); } } catch (Exception ex
) { System.Windows.Forms.MessageBox.Show(ex
.Message); } } void OnClosed
(object sender, EventArgs e
) { window
.Close(); } void KeyEventPressed
(object sender, KeyEventArgs e
) { extext2
.DisplayedString = "Key Pressed: " + e
.Code; if (e
.Code == Keyboard
.Key.W || e
.Code == Keyboard
.Key.Up) { forward
= true; } if (e
.Code == Keyboard
.Key.S || e
.Code == Keyboard
.Key.Down) { breaking
= true; } if (e
.Code == Keyboard
.Key.D || e
.Code == Keyboard
.Key.Right) { turnright
= true; } if (e
.Code == Keyboard
.Key.A || e
.Code == Keyboard
.Key.Left) { turnleft
= true; } if (e
.Code == Keyboard
.Key.Space) { movingspriteplayer
.VectorDirection = new Vector2f
(0,
0); } } void KeyEventReleased
(object sender, KeyEventArgs e
) { extext3
.DisplayedString = "Key Released: " + e
.Code; if (e
.Code == Keyboard
.Key.W || e
.Code == Keyboard
.Key.Up) { forward
= false; } if (e
.Code == Keyboard
.Key.S || e
.Code == Keyboard
.Key.Down) { breaking
= false; } if (e
.Code == Keyboard
.Key.D || e
.Code == Keyboard
.Key.Right) { turnright
= false; } if (e
.Code == Keyboard
.Key.A || e
.Code == Keyboard
.Key.Left) { turnleft
= false; } } private void UpdateSingleSprite
(ref FullMovingSprite sprite
) { if (sprite
.IsAIActive) { sprite
.AISeeking(movingspriteplayer
.Position); Console
.WriteLine(sprite
.Position + ", " + sprite
.VectorDirection); } sprite
.UpdateSelf(); } private void UpdateListOfSprites
(ref List
<FullMovingSprite
> mspritelist
) { List
<FullMovingSprite
> onlycurrent
= new List
<FullMovingSprite
>(mspritelist
); for (int i
= 0; i
< onlycurrent
.Count(); i
++) { FullMovingSprite refsprite
= onlycurrent
[i
]; UpdateSingleSprite
(ref refsprite
); } } private void UpdateHUD
(ref RenderWindow win
) { View viewcopy
= win
.GetView(); viewcopy
.Center = movingspriteplayer
.Position; win
.SetView(viewcopy
); Vector2f topleft
= new Vector2f
(viewcopy
.Center.X - (viewcopy
.Size.X / 2), viewcopy
.Center.Y - (viewcopy
.Size.Y / 2)),
topright
= new Vector2f
(viewcopy
.Center.X + (viewcopy
.Size.X / 2), viewcopy
.Center.Y - (viewcopy
.Size.Y / 2)),
bottomleft
= new Vector2f
(viewcopy
.Center.X - (viewcopy
.Size.X / 2), viewcopy
.Center.Y + (viewcopy
.Size.Y / 2)),
bottomright
= new Vector2f
(viewcopy
.Center.X + (viewcopy
.Size.X / 2), viewcopy
.Center.Y + (viewcopy
.Size.Y / 2)); extext
.Position = topleft
; extext
.DisplayedString = "Player Coords: " + movingspriteplayer
.Position.ToString(); fpstext
.DisplayedString = "FPS: " + currentfps
; extext2
.Position = new Vector2f
(topleft
.X,topleft
.Y + 15); extext3
.Position = new Vector2f
(topleft
.X, topleft
.Y + 30); } private void RenderHUD
(ref RenderWindow win
) { win
.Draw(extext
); win
.Draw(extext2
); win
.Draw(extext3
); win
.Draw(fpstext
); } private void RenderSingleSprite
(ref RenderWindow win,
ref FullMovingSprite sprite
) { win
.Draw(sprite
); } private void RenderListOfSprites
(ref RenderWindow win,
ref List
<FullMovingSprite
> mspritelist
) { List
<FullMovingSprite
> onlycurrent
= new List
<FullMovingSprite
>(mspritelist
); for (int i
= 0; i
< onlycurrent
.Count(); i
++) { FullMovingSprite refsprite
= onlycurrent
[i
]; RenderSingleSprite
(ref win,
ref refsprite
); } } private void CheckConstantInputs
() { if (forward
) { movingspriteplayer
.MoveSpriteByDirection(movingspriteplayer
.Rotation, 0
.25f,
false); } if (breaking
) { movingspriteplayer
.VectorDirection *= 0
.3f
; } if (turnright
) { movingspriteplayer
.Rotation += 5; } if (turnleft
) { movingspriteplayer
.Rotation -= 5; } } private SFML
.Graphics.Image ToSFMLImage
(System.Drawing.Bitmap bmp
) { SFML
.Graphics.Color[,
] sfmlcolorarray
= new Color
[bmp
.Height, bmp
.Width]; SFML
.Graphics.Image newimage
= null; for (int x
= 0; x
< bmp
.Width; x
++) { for (int y
= 0; y
< bmp
.Height; y
++) { System.Drawing.Color csharpcolor
= bmp
.GetPixel(x, y
); sfmlcolorarray
[y,x
] = new SFML
.Graphics.Color(csharpcolor
.R, csharpcolor
.G, csharpcolor
.B, csharpcolor
.A); } } newimage
= new SFML
.Graphics.Image(sfmlcolorarray
); return newimage
; } private SFML
.Graphics.Texture ToSFMLTexture
(System.Drawing.Bitmap bmp
) { return new Texture
(ToSFMLImage
(bmp
)); } } I edited out all the code that wasn't in use yet on that file. Here's the movingsprite file too since it is the only other one that I can think of that might be causing this.
class FullMovingSprite
: Sprite
{ private double movedirectionangle, maxspeed, mass
= 1.5; private Vector2f velocity
; Boolean isaiactive
; public FullMovingSprite
() : base() { VectorDirection
= new Vector2f
(0,
0); this.Rotation = (float)MissingMathFunctions
.AngleTo(VectorDirection
.X, VectorDirection
.Y); } public FullMovingSprite
(Texture texture
) : base(texture
) { VectorDirection
= new Vector2f
(0,
0); this.Rotation = (float)MissingMathFunctions
.AngleTo(VectorDirection
.X, VectorDirection
.Y); CenterOrigin
(); } public FullMovingSprite
(Texture texture, IntRect intrect
) : base(texture, intrect
) { VectorDirection
= new Vector2f
(0,
0); this.Rotation = (float)MissingMathFunctions
.AngleTo(VectorDirection
.X, VectorDirection
.Y); CenterOrigin
(); } public FullMovingSprite
(Vector2f loc, Vector2f vec,
float mspeed
) : base() { this.Position = loc
; VectorDirection
= vec
* mspeed
;//ConsistantSettingOfVector(new Vector2f(vec.X, vec.Y), mspeed); this.Rotation = (float)MissingMathFunctions
.AngleTo(VectorDirection
.X, VectorDirection
.Y); MaxSpeed
= mspeed
; } public FullMovingSprite
(Texture texture, Vector2f loc, Vector2f vec,
float mspeed
) : base(texture
) { this.Position = loc
; VectorDirection
= vec
* mspeed
;//ConsistantSettingOfVector(new Vector2f(vec.X, vec.Y), mspeed); this.Rotation = (float)MissingMathFunctions
.AngleTo(VectorDirection
.X, VectorDirection
.Y); MaxSpeed
= mspeed
; CenterOrigin
(); } public FullMovingSprite
(Texture texture, IntRect intrect, Vector2f loc, Vector2f vec,
float mspeed
) : base(texture, intrect
) { this.Position = loc
; VectorDirection
= vec
* mspeed
;//ConsistantSettingOfVector(new Vector2f( vec.X,vec.Y),mspeed); this.Rotation = (float)MissingMathFunctions
.AngleTo(VectorDirection
.X, VectorDirection
.Y); MaxSpeed
= mspeed
; CenterOrigin
(); } public FullMovingSprite
(FullMovingSprite copy
) : base(copy
) { VectorDirection
= new Vector2f
(copy
.VectorDirection.X, copy
.VectorDirection.Y); } public void CenterOrigin
() { if(this.Texture != null && !this.TextureRect.Equals(null)) { this.Origin = new Vector2f
(this.TextureRect.Width / 2,
this.TextureRect.Height / 2); } } private Vector2f ConsistantSettingOfVector
(Vector2f vec,
float mspeed
) { return MissingMathFunctions
.TruncateVector(new Vector2f
(vec
.X + mspeed, vec
.Y + mspeed
),
(float)maxspeed
); } public Vector2f VectorDirection
{ get { return velocity
; } set { velocity
= MissingMathFunctions
.TruncateVector(value,
(float)MaxSpeed
); } } public double MoveDirectionAngle
{ get { return movedirectionangle
; } set { movedirectionangle
= value; } } public double MaxSpeed
{ get { return maxspeed
; } set { maxspeed
= value; } } public void UpdateSelf
() { MoveSprite
(velocity
); } public Boolean IsAIActive
{ get { return isaiactive
; } set { isaiactive
= value; } } private Vector2f targetloc
; public Vector2f Targetloc
{ get { return targetloc
; } set { targetloc
= value; } } public void MoveSprite
(float xvec,
float yvec
) { this.Position += new Vector2f
(xvec,yvec
); } public void MoveSprite
(Vector2f vec
) { this.Position += vec
; } public void MoveSpriteByDirection
(float angledirection,
float speed,
bool turnvisually
) { float xvec
= (float)MissingMathFunctions
.calcXOnlyVector(angledirection
% 360) * speed,
yvec
= (float)MissingMathFunctions
.calcYOnlyVector(angledirection
% 360) * speed
; if(turnvisually
) { this.Rotation = angledirection
% 360; } VectorDirection
+= new Vector2f
(xvec, yvec
); } public void MoveSpriteByDirection
(float angledirection,
float speed,
bool turnvisually,
bool setoradd
) { float xvec
= (float)MissingMathFunctions
.calcXOnlyVector(angledirection
% 360) * speed,
yvec
= (float)MissingMathFunctions
.calcYOnlyVector(angledirection
% 360) * speed
; if (turnvisually
) { this.Rotation = angledirection
% 360; } System.Console.WriteLine("Move Angle: " + VectorDirection
.ToString()); if (setoradd
) { VectorDirection
= new Vector2f
(xvec, yvec
); } else { VectorDirection
+= new Vector2f
(xvec, yvec
); } } public void AISeeking
(Vector2f targetloc
) { Vector2f targetvec
= MissingMathFunctions
.normallizedVector(targetloc
- this.Position) * (float)this.MaxSpeed; Vector2f steering
= targetvec
- VectorDirection
; steering
= MissingMathFunctions
.TruncateVector(steering,
(float)this.MaxSpeed * 2); float mass
= this.Texture.Size.X * this.Texture.Size.Y / 2; steering
/= mass
; VectorDirection
+= steering
; this.Rotation = (float)MissingMathFunctions
.AngleTo(VectorDirection
.X, VectorDirection
.Y) % 360; } } Can post the missing math function file if needed to but all it is, is a few vector math equations for changing a vector into an angle and back again. Some I'm planning on replacing with what I found in NetEXT since it also does them.
