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c - 战舰: place ships

转载 作者：太空宇宙 更新时间：2023-11-04 08:42:14 26 4
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我在 AVR 设备上写了一个战舰游戏。一切正常，只有在游戏 map 上放置船只才会出现小问题。有时船会彼此相邻放置，即使我认为我的代码会阻止这种情况。现在已经尝试调试它两天了。如果你们中有人注意到我哪里错了，我想把 place_ships 函数的代码放在这里。

int data_map[10][10]; //This has the data of where ships are, where player has shot etc.
char game_map[10][10]; //This is printed in UI. O for miss, X for hit.

int ship_sizes[] = {0,1,2,3,3,4,5};
int ships[] = {0,1,2,3,4,5,6};

void place_ships() {                        //Places the ships in the game map.

int other_ships;                        //Variabel for counting if there are already other ships in the area where trying place the ship.

for (i=6; i>0; i--) {

    while (1) {
        other_ships = 0;                //Initialize.
        ship_direction = rand() % 10;   //Get random ship direction (1-4 = horizontal, 6-10 = vertical)
        top_x = (rand() % 8) + 1;       //Get random x-coordinate, not from map edges
        top_y = (rand() % 8) + 1;       //Get random y-coordinate, not from map edges

        if (ship_direction < 5) {       

            if ((top_x-ship_sizes[i]) > -2) {       //Make sure that ship has room in game map.

                for (j=(top_y-1); j<(top_y+2); j++) {       //Following 2 for-loops and if-statement inside makes sure that no other ships are in
                                                            //the area where the ship is tried to place.
                    for (k=(top_x+1); k>(top_x-(ship_sizes[i]-2)); k--) {

                        if ((data_map[j][k] == 1) || (data_map[j][k] == 2) || (data_map[j][k] == 3) || (data_map[j][k] == 4) || (data_map[j][k] == 5) || (data_map[j][k] == 6)) {
                            other_ships = 1;        //Following 2 'breaks' and 'continue' are there for the situation if
                            break;                  //there are other ships in the area, stop placing ship and get new random coordinate and try again.
                        }
                    }

                if (other_ships == 1) {

                        break;
                }

                }

                if (other_ships == 1) {

                        continue;
                    }

                for (l=top_x; l>(top_x-ship_sizes[i]); l--) {

                    data_map[top_y][l] = ships[i];      //If no other ships in the area, place the ship.

                }

                loading();                              //Wait to optimize harware working. There are known timing issues on AVR. And this
                                                        //is here to try to avoid them.
                break;
            }
        }

        else if (ship_direction > 5) {

            if ((top_y-ship_sizes[i]) > -2) { //Make sure that ship has room in game map.

                for (j=(top_y+1); j>(top_y-(ship_sizes[i]-2)); j--) {   //Following 2 for-loops and if-statement inside makes sure that no other ships are in
                                                                        //the area where the ship is tryied toplace.
                    for (k=(top_x-1); k<(top_x+2); k++) {

                        if ((data_map[j][k] == 1) || (data_map[j][k] == 2) || (data_map[j][k] == 3) || (data_map[j][k] == 4) || (data_map[j][k] == 5) || (data_map[j][k] == 6)) {

                            other_ships = 1;        //Following 2 'breaks' and 'continue' are there for the situation if
                            break;                  //there are other ships in the area, stop placing ship and get new random coordinate and try again.
                        }
                    }

                if (other_ships == 1) {

                        break;
                }

                }

                if (other_ships == 1) {

                        continue;
                    }

                for (l=top_y; l>((top_y-(ship_sizes[i]))); l--) {

                    data_map[l][top_x] = ships[i];      //If no other ships in the area, place the ship.

                }

                loading();                              //Wait to optimize harware working. There are known timing issues on AVR. And this
                                                        //is here to try to avoid them.
                break;
            }
        }
    }
}
}

至此，原来的问题解决了。还有一些船没有放置。运送功能会跳过，有所不同。

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