我用 ANTS profiler 浏览了我的游戏，看看是什么导致了我的 FPS 极度下降，我发现它与玩家的运动有关。看，每当我的玩家移动时，一个叫做的东西Microsoft.Win32.SafeNativeMethods.QueryPerformanceCounter会占用我大约 75% 的 CPU。根据 ANTS 的说法，它与System.Diagnostics.Stopwatch.GetTimestamp. 这是分析器结果的屏幕截图：
这是我的所有代码：
播放器.cs
namespace Innovationally
{
public class Player
{
public Texture2D PlayerTexture;
public Vector2 Position;
public bool Active;
public float angle;
public int coins { get; set; }
public int bombs { get; set; }
public int normalaelever { get; set; }
public int health { get; set; }
public int damage { get; set; }
public int maximumhealth { get; set; }
public int problemelever { get; set; }
public int mvgelever { get; set; }
public int elever { get; set; }
public int nyckel { get; set; }
public int Width
{
get { return PlayerTexture.Width; }
}
public int Height
{
get { return PlayerTexture.Height; }
}
public void Initialize(Texture2D texture, Vector2 position)
{
PlayerTexture = texture;
Position = position;
Active = true;
elever = 0;
mvgelever = 0;
normalaelever = 0;
coins = 0;
bombs = 0;
health = 100;
maximumhealth = 100;
damage = 20;
nyckel = 99;
angle = (float)Math.PI * 2;
}
public void Draw(SpriteBatch spriteBatch)
{
spriteBatch.Draw(PlayerTexture, Position, null, Color.White, angle, new Vector2(PlayerTexture.Width / 2, PlayerTexture.Height / 2), 1f, SpriteEffects.None, 0f);
}
}
}
游戏1.cs
namespace Innovationally
{
enum GameState
{
TITLESCREEN,
HELPSCREEN,
PLAYING,
WON,
CONTROLS,
LOST
}
public class Game1 : Microsoft.Xna.Framework.Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
GameState gameState = GameState.TITLESCREEN;
//PLAYER STATS
public static Player player;
KeyboardState currentKeyboardState;
KeyboardState previousKeyboardState;
float playerMoveSpeed;
int bHit;
//LEVEL STATS
Dictionary<Texture2D, uint[]> pixelMaps = new Dictionary<Texture2D,uint[]>();
int level_number = 0;
int loadlevel = 0;
Texture2D hud, level0, level1, level2, level3, level4, level5;
Vector2 levelPos;
//ROOM STATS
List<int> tile_life = new List<int>();
Texture2D tile_gfx, stairsUp, stairsDown;
List<Vector2> tile_position = new List<Vector2>();
List<int> tile_type = new List<int>();
List<int> tile_elev = new List<int>();
int antlabb = 0;
int antvapen = 0;
int antpolis = 0;
int antwavers = 0;
TimeSpan researchSpan;
int researchTime;
//MISC
SpriteFont font;
Loot loot;
//GAMEPLAY STATS
TimeSpan timeElapsed;
public Game1()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
graphics.PreferredBackBufferHeight = 800;
graphics.PreferredBackBufferWidth = 900;
}
protected override void Initialize()
{
player = new Player();
playerMoveSpeed = 4.0f;
tile_elev.Add(1);
levelPos.X = 0;
levelPos.Y = 0;
loot = new Loot();
researchTime = 160 - (antlabb * 40);
base.Initialize();
}
protected override void LoadContent()
{
spriteBatch = new SpriteBatch(GraphicsDevice);
Vector2 playerPosition = new Vector2(430, 450);
//LEVEL STATS
LaddaLevel(level_number);
level0 = Content.Load<Texture2D>("level0");
level1 = Content.Load<Texture2D>("level1");
level2 = Content.Load<Texture2D>("level2");
level3 = Content.Load<Texture2D>("level3");
level4 = Content.Load<Texture2D>("level4");
level5 = Content.Load<Texture2D>("level5");
player.Initialize(Content.Load<Texture2D>("Leftplayer"), playerPosition);
//As you can see I'm using the new PixelMaps function here...
pixelMaps = PixelMaps(new[] { level0, level1, level2, level3, level4, level5, player.PlayerTexture });
hud = Content.Load<Texture2D>("hud");
//ROOM STATS
tile_gfx = Content.Load<Texture2D>("tile");
stairsUp = Content.Load<Texture2D>("stairsUp");
stairsDown = Content.Load<Texture2D>("stairsDown");
font = Content.Load<SpriteFont>("SpriteFont1");
//SOMEONE STOP THE MUSIC, MUSIC.
MediaPlayer.Volume = 0.5f;
MediaPlayer.IsRepeating = true;
MediaPlayer.Play(Content.Load<Song>("barn-beat"));
}
public void LaddaLevel(int nummer)
{
StreamReader SR = new StreamReader(nummer.ToString());
string bana = SR.ReadToEnd();
SR.Close();
int temp_positionY = 0;
int temp_positionX = 0;
tile_position.Clear();
tile_type.Clear();
tile_life.Clear();
tile_elev.Clear();
for (int i = 0; i < bana.Length; i++)
{
switch (bana[i])
{
case ' ':
temp_positionX++;
break;
case '0':
tile_life.Add(loot.myRnd.Next(8));
tile_position.Add(new Vector2((temp_positionX * 100), (temp_positionY * 100)));
temp_positionX++;
tile_type.Add(int.Parse(bana[i].ToString()));
break;
case '8':
tile_position.Add(new Vector2((temp_positionX * 100), (temp_positionY * 100)));
temp_positionX++;
tile_type.Add(int.Parse(bana[i].ToString()));
tile_life.Add(8);
break;
case '9':
tile_position.Add(new Vector2((temp_positionX * 100), (temp_positionY * 100)));
temp_positionX++;
tile_type.Add(int.Parse(bana[i].ToString()));
tile_life.Add(9);
break;
case '\n':
temp_positionY++;
temp_positionX = 0;
break;
}
}
}
protected override void UnloadContent()
{
}
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
this.Exit();
previousKeyboardState = currentKeyboardState;
currentKeyboardState = Keyboard.GetState();
if (currentKeyboardState.IsKeyDown(Keys.Escape) && previousKeyboardState.IsKeyUp(Keys.Escape))
this.Exit();
switch (gameState)
{
case GameState.TITLESCREEN:
UpdatePlayer(gameTime);
if (currentKeyboardState.IsKeyDown(Keys.S) && previousKeyboardState.IsKeyUp(Keys.S))
gameState = GameState.PLAYING;
if (currentKeyboardState.IsKeyDown(Keys.H) && previousKeyboardState.IsKeyUp(Keys.H))
gameState = GameState.HELPSCREEN;
break;
case GameState.HELPSCREEN:
if (currentKeyboardState.IsKeyDown(Keys.B) && previousKeyboardState.IsKeyUp(Keys.B))
gameState = GameState.TITLESCREEN;
break;
case GameState.PLAYING:
timeElapsed += gameTime.ElapsedGameTime;
UpdatePlayer(gameTime);
UpdateResearchCenters(gameTime);
UpdateCollisions(gameTime);
break;
case GameState.LOST:
if (currentKeyboardState.IsKeyDown(Keys.S) && previousKeyboardState.IsKeyUp(Keys.S))
{
loadlevel = 0;
gameState = GameState.PLAYING;
}
break;
}
base.Update(gameTime);
}
private void UpdatePlayer(GameTime gameTime)
{
if (currentKeyboardState.IsKeyDown(Keys.Left))
{
player.angle = (float)Math.PI * 1.5f;
player.Position.X -= playerMoveSpeed;
}
if (currentKeyboardState.IsKeyDown(Keys.Right))
{
player.angle = (float)Math.PI / 2;
player.Position.X += playerMoveSpeed;
}
if (currentKeyboardState.IsKeyDown(Keys.Up))
{
player.angle = (float)Math.PI * 2;
player.Position.Y -= playerMoveSpeed;
}
if (currentKeyboardState.IsKeyDown(Keys.Down))
{
player.angle = (float)Math.PI;
player.Position.Y += playerMoveSpeed;
}
if (player.health <= 0)
gameState = GameState.LOST;
switch (gameState)
{
case GameState.TITLESCREEN:
if (player.Position.X > 800)
this.Exit();
if (player.Position.X < 0)
gameState = GameState.PLAYING;
if (player.Position.Y > 900)
gameState = GameState.HELPSCREEN;
if (player.Position.Y < 0)
gameState = GameState.CONTROLS;
break;
}
}
public void UpdateResearchCenters(GameTime gameTime)
{
researchSpan -= (gameTime.ElapsedGameTime);
researchTime = (int)researchSpan.Seconds;
if (researchTime <= 0)
{
loot.RandomResearch();
researchTime = 160 - (antlabb*40);
}
}
public static uint[] Pixels(Texture2D texture)
{
uint[] data = new uint[texture.Width * texture.Height];
texture.GetData(data);
return data;
}
public static Dictionary<Texture2D, uint[]> PixelMaps(IEnumerable<Texture2D> textures)
{
return textures.ToDictionary(t => t, Pixels);
}
public static int TestCollision(uint[] t1, int t1Width, Rectangle r, uint[] t2)
{
for (var x = r.X; x < r.X + r.Width; x++)
for (var y = r.Y; y < r.Y + r.Height; y++)
{
var i = x + (y * t1Width);
/*if (((t1[i] & 0xff000000) > 0) && (t2[i] == 0xffC3C3C3))
{
return 1;
}
if (((t1[i] & 0xff000000) > 0) && (t2[i] == 0xff000000))
{
return 2;
}*/
}
return 0;
}
public void UpdateCollisions(GameTime gameTime)
{
Rectangle playerBox = new Rectangle((int)player.Position.X - 20, (int)player.Position.Y - 20, 40, 37);
Rectangle levelBox = new Rectangle(0, 0, 900, 800);
for (int i = 0; i < tile_position.Count; i++)
{
Rectangle tileBox = new Rectangle((int)tile_position[i].X, (int)tile_position[i].Y, 100, 100);
if (playerBox.Intersects(tileBox))
{
if (tile_life[i] <= 9)
{
if (tile_life[i] == 9 && currentKeyboardState.IsKeyDown(Keys.Space))
{
loadlevel += 1;
LaddaLevel(loadlevel);
}
else if (tile_life[i] == 8 && currentKeyboardState.IsKeyDown(Keys.Space))
{
loadlevel -= 1;
LaddaLevel(loadlevel);
}
else if (tile_life[i] == 7 && currentKeyboardState.IsKeyDown(Keys.Space) && player.nyckel >= 1)
{
loot.RandomLoot();
player.nyckel -= 1;
tile_life[i] = 70;
}
else if (tile_life[i] == 6 && currentKeyboardState.IsKeyDown(Keys.Space) && (player.mvgelever >= 1 || player.normalaelever >= 1 || player.problemelever >= 1))
{
tile_life[i] = 60;
if (player.mvgelever != 0)
player.mvgelever -= 1;
else if (player.normalaelever != 0)
player.normalaelever -= 1;
else if (player.problemelever != 0)
player.problemelever -= 1;
antlabb += 1;
}
}
}
}
var playerMap = pixelMaps[player.PlayerTexture];
var level0Map = pixelMaps[level0];
if (loadlevel == 0)
bHit = TestCollision(playerMap, 15, playerBox, level0Map);
if (bHit == 2)
this.Exit();
}
private void DrawHud()
{
string timeString = "TIME: " + timeElapsed.Minutes.ToString("00") + ":" + timeElapsed.Seconds.ToString("00");
spriteBatch.Draw(hud, new Vector2(0, 0), Color.White);
spriteBatch.DrawString(font, timeString, new Vector2(15, 35), Color.White);
spriteBatch.DrawString(font, "Level " + (loadlevel + 1), new Vector2(15, 10), Color.White);
spriteBatch.DrawString(font, "" + player.mvgelever, new Vector2(739, 55), Color.White);
spriteBatch.DrawString(font, "" + player.problemelever, new Vector2(799, 55), Color.White);
spriteBatch.DrawString(font, "" + player.normalaelever, new Vector2(859, 55), Color.White);
spriteBatch.DrawString(font, "" + antwavers, new Vector2(454, 55), Color.White);
spriteBatch.DrawString(font, "" + antpolis, new Vector2(514, 55), Color.White);
spriteBatch.DrawString(font, "" + antvapen, new Vector2(574, 55), Color.White);
spriteBatch.DrawString(font, "" + antlabb, new Vector2(633, 55), Color.White);
spriteBatch.DrawString(font, "" + player.coins, new Vector2(359, 55), Color.White);
spriteBatch.DrawString(font, "" + player.nyckel, new Vector2(328, 55), Color.White);
spriteBatch.DrawString(font, "" + player.bombs, new Vector2(296, 55), Color.White);
spriteBatch.DrawString(font, "RESEARCH IN: " + researchTime, new Vector2(15, 55), Color.White);
}
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.CornflowerBlue);
spriteBatch.Begin();
switch (gameState)
{
case GameState.TITLESCREEN:
break;
case GameState.PLAYING:
if (loadlevel == 0)
spriteBatch.Draw(level0, new Vector2(0, 0), Color.White);
if (loadlevel == 1)
spriteBatch.Draw(level1, new Vector2(0, 0), Color.White);
if (loadlevel == 2)
spriteBatch.Draw(level2, new Vector2(0, 0), Color.White);
if (loadlevel == 3)
spriteBatch.Draw(level3, new Vector2(0, 0), Color.White);
if (loadlevel == 4)
spriteBatch.Draw(level4, new Vector2(0, 0), Color.White);
if (loadlevel == 5)
spriteBatch.Draw(level5, new Vector2(0, 0), Color.White);
for (int i = 0; i < tile_position.Count; i++)
{
switch (tile_life[i])
{
case 0: spriteBatch.Draw(tile_gfx, tile_position[i], Color.White);
break;
case 1: spriteBatch.Draw(tile_gfx, tile_position[i], Color.HotPink);
break;
case 2: spriteBatch.Draw(tile_gfx, tile_position[i], Color.YellowGreen);
break;
case 3: spriteBatch.Draw(tile_gfx, tile_position[i], Color.Purple);
break;
case 4: spriteBatch.Draw(tile_gfx, tile_position[i], Color.Yellow);
break;
case 5: spriteBatch.Draw(tile_gfx, tile_position[i], Color.Silver);
break;
case 6: spriteBatch.Draw(tile_gfx, tile_position[i], Color.Gold);
break;
case 60: spriteBatch.Draw(tile_gfx, tile_position[i], Color.Gold);
spriteBatch.Draw(player.PlayerTexture, new Vector2(tile_position[i].X + 35, tile_position[i].Y + 40), Color.White);
break;
case 7: spriteBatch.Draw(tile_gfx, tile_position[i], Color.Orange);
break;
case 70: spriteBatch.Draw(tile_gfx, tile_position[i], Color.DarkOrange);
break;
case 8: spriteBatch.Draw(stairsDown, tile_position[i], Color.White);
break;
case 9: spriteBatch.Draw(stairsUp, tile_position[i], Color.White);
break;
}
}
DrawHud();
player.Draw(spriteBatch);
break;
}
spriteBatch.End();
base.Draw(gameTime);
}
}
}
谁能帮我识别这个内存泄漏？