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從數組中加載地圖（對於遊戲）的問題

2013-02-08 44 views
0

我正在使用文本文件來存儲地圖，但加載它們會給我帶來一點麻煩。物體被擠在一起，我不知道爲什麼。這裏是「地圖」文件（level_1_1.map）：從數組中加載地圖（對於遊戲）的問題

"level_1_1.png", ?600:400?; 
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這裏是我加載的類：

package org.awesome.Models; 



public class Map{ 
int playerWidth = 50; 
int playerHeight = 50; 
int platformWidth = 20; 
int platformHeight = 20; 

int playerX, playerY; 
List<Platform> platforms = new ArrayList<Platform>(); 
Bitmap bg; 
int backgroundX, backgroundY; 

private Context context; 
private SurfaceView game; 
public Map(Context context, SurfaceView game){ 
    this.context = context; 
    this.game = game; 
} 

public void update(){ 

} 

public void draw(Canvas canvas){ 

    for(Platform p : platforms) 
     p.draw(canvas); 
} 

public boolean loadMap(String filename){ 
    //load the file into a string 
    byte[] buffer = null; 
    try { 
     AssetManager am = context.getAssets(); 
     InputStream fis = am.open(filename); 
     buffer = new byte[fis.available()]; 
     fis.read(buffer, 0, fis.available()); 
    } catch (IOException e) { 
     e.printStackTrace(); 
     return false; 
    } 
    String s = new String(buffer); 
    //seperate the map image, the dimensions and the mapping itself 
    s = s.substring(s.indexOf("\"") + 1); 
    String bgname = s.substring(0, s.indexOf("\""));  
    bg = BitmapFactory.decodeFile(bgname); 
    s = s.substring(s.indexOf(",") + 1); 
    s = s.substring(s.indexOf("?") + 1); 
    String dimensions = s.substring(0, s.indexOf("?")); 
    //actual dimensions 
    int width = Integer.parseInt(dimensions.substring(0, s.indexOf(":"))); 
    int height = Integer.parseInt(dimensions.substring(s.indexOf(":") + 1)); 

    s = s.substring(s.indexOf(";") + 1); 
    String[] mapRows = s.split(";"); 
    //the actual mapping of things 
    String[][] map = new String[mapRows.length][]; 
    for(int i = 0; i < mapRows.length; i++){ 
     map[i] = mapRows[i].split(","); 
    } 

    //now create the stuff 
    for(int r = 0; r < map.length; r++){ 
     for(int c = 0; c < map[r].length; c++){ 
      map[r][c] = map[r][c].trim(); 
      int currentDigit = Integer.parseInt(map[r][c]); 
      int x = c * 10; 
      int y = r * 10; 

      //Will create the object at the top left corner of the !!RECTANGULAR!! map representation. 
      if(currentDigit == 0){ 

      }else if(currentDigit == 1 && isTopLeft(1, r, c, map)){ 
       Bitmap texture = BitmapFactory.decodeResource(game.getResources(), org.awesome.AndroidGame.R.drawable.brown_block_reg); 
       Log.w("making platform", "" + x + ", " + y); 
       platforms.add(new Platform(x, y, texture)); 
      }else if(currentDigit == 2 && isTopLeft(2, r, c, map)){ 
       playerX = x; 
       playerY = y; 
      }else if(currentDigit == 3){ 

      }else if(currentDigit == 4){ 

      }else if(currentDigit == 5){ 

      }else if(currentDigit == 6){ 

      }else if(currentDigit == 7){ 

      }else if(currentDigit == 8){ 

      }else if(currentDigit == 9){ 

      } 
     } 
    } 

    return true; 
} 

private boolean isTopLeft(int item, int r, int c, String[][] map){ 
    //width and height measured in # of map "steps" (10px ea) 
    int width = 1; 
    int height = 1; 

    if(item == 0){ 

    }else if(item == 1){ 
     width = platformWidth/10; 
     height = platformHeight/10; 
    }else if(item == 2){ 
     width = playerWidth/10; 
     height = playerHeight/10; 
    }else if(item == 3){ 

    }else if(item == 4){ 

    }else if(item == 5){ 

    }else if(item == 6){ 

    }else if(item == 7){ 

    }else if(item == 8){ 

    }else if(item == 9){ 

    } 

    //counts backwards and upwards to see how many blocks of the same type preceed it. 
    int curR = r - 1; 
    int prevWidthCount = 0; 
    int prevHeightCount = 0; 
    while(curR >= 0 && map[curR][c].equals("" + item)){ 
     curR -= 1; 
     prevWidthCount += 1; 
    } 
    int curC = c - 1; 
    while(curC >= 0 && map[r][curC].equals("" + item)){ 
     curC -= 1; 
     prevHeightCount += 1; 
    } 


    if(prevWidthCount % width == 0 && prevHeightCount % height == 0){ 
     return true; 
    } 

    return false; 

} 

public int countObjectsLeft(String[][] map, int r, int c){ 
    int counter = 0; 
    while(c >= 0){ 
     if(isTopLeft(Integer.parseInt(map[r][c]), r, c, map)) 
      counter++; 
     c -= 1; 
    } 
    return counter; 
} 
public int countObjectsUp(String[][] map, int r, int c){ 
    int counter = 0; 
    while(r >= 0){ 
     if(isTopLeft(Integer.parseInt(map[r][c]), r, c, map)) 
      counter++; 
     r -= 1; 
    } 
    return counter; 
} 

}

下面是結果（管道字符，每個塊結束），球是玩家（目前沒有從文件加載）。 enter image description here

我被困在這，看起來塊應該適合（0,0）到（19,19）和（20,20）到（39,39）。任何幫助，將不勝感激：d：d

編輯1：

這裏是全平臺類：

package org.awesome.Models; 


public class Platform { 
private int x, y; 
private Bitmap texture; 
public Platform(int x, int y, Bitmap texture){ 
    this.x = x; 
    this.y = y; 
    this.texture = texture; 

} 

public void draw(Canvas canvas) { 
    Paint paint = new Paint(); 
    paint.setColor(Color.WHITE); 
     canvas.drawBitmap(texture, x, y, null); 
     canvas.drawText("|", x + texture.getWidth(), y - 2, paint); 
    } 

public int getX(){ 
    return x; 
} 

public int getY(){ 
    return y; 
} 

public Bitmap getBitmap(){ 
    return texture; 
} 
}

來源

2013-02-08 ceptno

+0

我的第一個猜測是你在'Platform'中做了一些事情，作爲我們需要看到的繪圖函數的一部分。 – Grambot 2013-02-08 19:33:02

回答

1

在你的代碼中，我看到你正在使用dimmensions以像素爲單位，而BitmapFactory.decodeResource進行位圖，以適應當前設備的屏幕密度scalling，這couses繪製的圖像，以更大的是應該的。如果你想使用像素，那麼你應該使用選項（設置inScaled爲false應該足夠了）版本decodeResource禁用scalling：

decodeResource(Resources res, int id, BitmapFactory.Options opts)

或者把你的可繪製在

drawable-nodpi

文件夾，有什麼會阻止scalling在加載期間

來源

2013-02-08 19:50:10 marcinj

+0

的inScaled =假沒有出於某種原因。我的項目中沒有drawable-nodpi，我可以創建它嗎？ – ceptno 2013-02-08 20:07:58

+0

是創建它，我想你的位圖drawBitmap期間還是縮減規模，你的畫布是其他密度。我認爲你應該遠離使用像素昏暗 - 你的遊戲屏幕在高密度設備上看起來會很小。 – marcinj 2013-02-08 20:16:41

+0

的計劃是讓地圖真正的大和有口。有沒有其他的方法來做到這一點（像素以外）？我對這些東西不是很有經驗，並且很想學習。 – ceptno 2013-02-08 22:00:05

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