www.pudn.com > bmbrsrc > BomberPlayers.c

//Draw the players 
void DrawPlayers () 
{ 
  int   f, sx, i, j, p; 
  int   Order [5], Y [5]; 
 
  //Sort back to front 
  for (i = 0; i < Players; i++) { 
    Order [i] = i; 
    Y [i] = PlayerY [i]; 
  } 
 
  for (i = 0; i < Players; i++) { 
    for (j = i + 1; j < Players; j++) { 
      if (Y [j] < Y [i]) { 
        p = Y [i]; 
        Y [i] = Y [j]; 
        Y [j] = p; 
        p = Order [i]; 
        Order [i] = Order [j]; 
        Order [j] = p; 
      } 
    } 
  } 
   
  //Draw back to front 
  for (i = 0; i < Players; i++) { 
    p = Order [i]; 
    if (PlayerDead [p]) { 
      if (PlayerFrame [p] < 8) 
      DrawTSprite (PlayerX [p] - 12, 
                   PlayerY [p] - 16, 
                   24 * PlayerFrame [p]++, 
                   p * 48 + 24, 
                   25, 25); 
    } else { 
      f = PlayerFrame [p]; 
      if (f == 2) f = 0; 
      if (f == 3) f = 2; 
      sx = PlayerDir [p] * 72 + f * 24; 
      DrawTSprite (PlayerX [p] - 12,  
                   PlayerY [p] - 16, 
                   sx, p * 48, 24, 24); 
    } 
  } 
} 
 
//Move the players 
void MovePlayers () 
{ 
  int canMove, tryDir; 
  int p, px, py, ox, oy; 
 
  for (p = 0; p < Players; p++) if (!PlayerDead [p]) { 
    //Assume nothing 
    canMove = 0; 
    tryDir = -1; 
    px = PlayerX [p]; 
    py = PlayerY [p]; 
 
    //Try the direction 
    if (Down  [p]) tryDir = 0; 
    if (Right [p]) tryDir = 1; 
    if (Left  [p]) tryDir = 2; 
    if (Up    [p]) tryDir = 3; 
 
    //Check the map 
    ox = oy = 0; 
    if (tryDir == 0) { oy =   8; } 
    if (tryDir == 1) { ox =   8; } 
    if (tryDir == 2) { ox = -12; } 
    if (tryDir == 3) { oy = -12; } 
 
    //If the grid is empty or the spot is the same, movement is possible 
    canMove = (Grid [(px + ox) >> 4][(py + oy) >> 4] == 0); 
    if (tryDir == 0 || tryDir == 3) canMove |= (((py + oy) >> 4) == (py >> 4)); 
    if (tryDir == 1 || tryDir == 2) canMove |= (((px + ox) >> 4) == (px >> 4)); 
 
    //Update player 
    if (tryDir >= 0) PlayerDir [p] = tryDir; 
    if (canMove && tryDir >= 0) { 
      if (tryDir == 0) { oy =  4; PlayerX [p] = (PlayerX [p] & 0xFF0) + 8; } 
      if (tryDir == 1) { ox =  4; PlayerY [p] = (PlayerY [p] & 0xFF0) + 8; } 
      if (tryDir == 2) { ox = -4; PlayerY [p] = (PlayerY [p] & 0xFF0) + 8; } 
      if (tryDir == 3) { oy = -4; PlayerX [p] = (PlayerX [p] & 0xFF0) + 8; } 
      PlayerX [p] += ox; 
      PlayerY [p] += oy; 
      PlayerFrame [p]++; 
      PlayerFrame [p] &= 3; 
    } else { 
      PlayerFrame [p] = 0; 
    } 
  } 
} 
 
//Kill a player at a specific location 
void KillPlayer (int x, int y) 
{ 
  int   p, tx, ty; 
 
  //Check all players 
  for (p = 0; p < Players; p++) { 
    //if they're not dead 
    if (!PlayerDead [p]) { 
      tx = PlayerX [p] >> 4; 
      ty = PlayerY [p] >> 4; 
      //They can be killed 
      if (tx == x && ty == y) { 
        PlayerDead [p] = -1; 
        PlayerFrame [p] = 0; 
        PlaySound ((LPCSTR)Lose, NULL, SND_ASYNC | SND_MEMORY); 
      } 
    } 
  } 
}