边做边循环，无限循环
do-while loop, infinity loop
我有 2 件事不适用于此代码。第一件事是，在我的第二个 do-while 循环中，当我输入"g"或"G"并输入坐标并选择它是左还是右时，它会连续循环。
我的第二件不正确的事情是，当我发射激光时，挡板应该转动它并使其朝不同的方向发展。 这有效，但在找到挡板后的盒子之前，它不会转动激光。我对此非常困，任何帮助都会很棒，您也看到我应该修复的任何内容都将不胜感激。
#include <iostream>
#include <cstdlib>
#include <ctime>
#include <iomanip>
using namespace std;
struct velocity
{
int X = 0, Y = 0;
};
struct position
{
int X = 0, Y = 0;
void addVelocity(velocity V)
{
X += V.X;
Y += V.Y;
}
};
int gameBoard[10][10];
int guessBoard[10][10];
int random(int);
void laser(int&);
int boxNum(position, velocity);
position calcExitPos(velocity&, int&);
position moveLaser(position&, velocity V);
velocity checkPos(position, velocity&);
bool checkWall(position, velocity);
int main()
{
char level, action;
int num = 0;
int score = 0, guess = 0, shots = 0, LorR = 0;
int X = 0, Y = 0;
for (int i = 0; i < 10; i++)
{
for (int j = 0; j < 10; j++)
{
gameBoard[i][j] = 0;
}
}
for (int i = 0; i < 10; i++)
{
for (int j = 0; j < 10; j++)
{
guessBoard[i][j] = 0;
}
}
cout << "Welcome to the Baffle Game." << endl;
cout << " 10 11 12 13 14 15 16 17 18 19" << endl;
cout << "9|___|___|___|___|___|___|___|___|___|___|20" << endl;
cout << "8|___|___|___|___|___|___|___|___|___|___|21" << endl;
cout << "7|___|___|___|___|___|___|___|___|___|___|22" << endl;
cout << "6|___|___|___|___|___|___|___|___|___|___|23" << endl;
cout << "5|___|___|___|___|___|___|___|___|___|___|24" << endl;
cout << "4|___|___|___|___|___|___|___|___|___|___|25" << endl;
cout << "3|___|___|___|___|___|___|___|___|___|___|26" << endl;
cout << "2|___|___|___|___|___|___|___|___|___|___|27" << endl;
cout << "1|___|___|___|___|___|___|___|___|___|___|28" << endl;
cout << "0|___|___|___|___|___|___|___|___|___|___|29" << endl;
cout << " 39 38 37 36 35 34 33 32 31 30" << endl << endl;
cout << "This is the game board, you will shoot lasers and try to find all the baffles. " << endl << endl;
//cout << "For beginner there are 4 baffles, for intermediate there are 7 baffles and for advanced there are 10 baffles." << endl;
//cout << "Please type B for beginner, I for intermediate, and A for advanced" << endl;
do
{
cout << "For beginner there are 4 baffles, for intermediate there are 7 baffles" << endl;
cout << "and for advanced there are 10 baffles." << endl;
cout << "Please type B for beginner, I for intermediate, and A for advanced" << endl;
cin >> level;
} while (level != 'b' && level != 'B' && level != 'i' && level != 'I' && level != 'a' && level != 'A');
if (level == 'B' || level == 'b')
{
//Baffles equals 4
num = random(4); // function returns to num
}
else if(level == 'I' || level == 'i')
{
//Baffles equals 7
num = random(7);
}
else
{
//Baffles equals 10
num = random(10);
}
cout << "We will begin the game now." << endl;
cout << "Here are some commands that you will need to know to play." << endl;
cout << "L: Laser shot, then pick a number on the board to shoot the laser from." << endl;
cout << "G: Guess the location of one baffle with coordinance and L or R to choose a left or right baffle." << endl;
cout << "S: When you want me to print the score that you have." << endl;
cout << "P: Print the board showing the baffles that you have already found." << endl;
cout << "Q: Quit the game at any time" << endl;
cout << "C: This shows you the board with all the baffles and which direction they are." << endl;
do
{
cout << "Please type in your command." << endl;
cin >> action;
if (action == 'L' || action == 'l')
{
laser(shots);
}
else if (action == 'G' || action == 'g')
{
cout << "We will guess where the baffle is." << endl;
cout << "Please enter the X coordinate." << endl;
cin >> X;
cout << "Please enter the Y coordinate." << endl;
cin >> Y;
//cout << gameBoard[X][Y] << endl;
cout << "Please enter L and R for Left and Right Baffles." << endl;
cin >> LorR;
//cout << gameBoard[X][Y];
if (gameBoard[X][Y] == 1)//Right
{
//cout << "1" << endl;
if (LorR == 'R' || LorR == 'r')
{
cout << "Good job you got it correct." << endl;
guessBoard[X][Y] = 'R';
//points++
}
else
cout << "Wrong!" << endl;
}
else if (gameBoard[X][Y] == 2)//Left
{
//cout << "2" << endl;
if (LorR == 'L' || LorR == 'l')
{
cout << "Good job you got it correct." << endl;
guessBoard[X][Y] = 'L';
//points++
}
else
cout << "Wrong!" << endl;
}
else if (gameBoard[X][Y] == 0)
{
cout << "Your are wrong!" << endl;
}
}
else if (action == 'S' || action == 's')
{
cout << "Number of shots: " << shots << endl;
cout << "Number of guesses: " << guess << endl;
cout << "Current score: " << endl;//Get score
}
else if (action == 'P' || action == 'p')
{
for (int i = 0; i < 10; i++)
{
for (int j = 0; j < 10; j++)
{
cout << setw(2) << guessBoard[i][j] << " ";
}
cout << endl;
}
}
else if (action == 'C' || action == 'c')
{
for (int i = 0; i < 10; i++)
{
for (int j = 0; j < 10; j++)
{
cout << setw(2) << gameBoard[i][j] << " ";
}
cout << endl;
}
}
else if (action == 'q' || action == 'Q')
{
}
else if (action != 'q' && action != 'Q')
{
cout << "*** Illegal command - Try again ***" << endl;
}
cout << "loop" << endl;
}
while (action == 'q' || action == 'Q' || action == 'L' || action == 'l' || action == 'G' || action == 'g' ||
action == 'S' || action == 's' || action == 'P' || action == 'p' || action == 'C' || action == 'c');
}
//This function finds a random number for the find a random index
// in the array.
int random(int randnum)
{
unsigned seed = time(0); //get the system time.
srand(seed); //seed the random number generator.
int x, y, randomNum = 0;
int count;
for (count = 0; count < randnum; count++)
{
do
{
x = (rand() % (9 - 0 + 1)) + 0;
y = (rand() % (9 - 0 + 1)) + 0;
} while (gameBoard[x][y] != 0);
cout << "(" << x << "," << y << ")" << endl;
randomNum = rand();
gameBoard[x][y] = (randomNum % 2) + 1;
cout << gameBoard[x][y] << endl;
//2 = Left baffle
//1 = right baffle
}
return gameBoard[x][y];
}
void laser(int &shots) //Shoots a laser where user asks it to
{
int shoot;
cout << "Please input what number you want to shoot the laser from." << endl;
cin >> shoot;
shots++;
velocity V;
position P = calcExitPos(V,shoot);
//checkPos(P, V);
//cout << "1" << endl;
do
{
checkPos(P, V);
moveLaser(P, V);
//cout << "1" << endl;
} while (checkWall(P, V) == false);
cout << "Laser shot #" << shots << " exited the box at " << boxNum(P, V) << endl;
}
int boxNum(position P, velocity V) //Figures out what number the laser exits
{
if (P.X == 0 && V.X == -1)
{
return 9 - P.Y;
}
else if (P.Y == 0 && V.Y == -1)
{
return 10 + P.X;
}
else if (P.X == 9 && V.X == 1)
{
return P.Y + 20;
}
else if (P.Y == 9 && V.Y == 1)
{
return 39 - P.X;
}
}
position calcExitPos(velocity &V, int &box)//Figures out where the laser shoots from by the number the user inputs
{
position P1;
if (box >= 0 && box <= 9)
{
V.X = 1;
V.Y = 0;
P1.X = 0;
P1.Y = (9 - box);
}
else if (box >= 10 && box <= 19)
{
V.X = 0;
V.Y = 1;
P1.X = (box - 10);
P1.Y = 0;
}
else if (box >= 20 && box <= 29)
{
V.X = -1;
V.Y = 0;
P1.X = 9;
P1.Y = (box - 20);
}
else if (box >= 30 && box <= 39)
{
V.X = 0;
V.Y = -1;
P1.X = (39 - box);
P1.Y = 9;
}
return P1;
}
position moveLaser(position &P, velocity V)
{
int baffletype = gameBoard[P.X][P.Y];
if (baffletype == 1)//Right
{
if (V.X == 1)
{
V.Y = -1;
V.X = 0;
P.Y--;
}
else if (V.X == -1)
{
V.Y = 1;
V.X = 0;
P.Y++;
}
else if (V.Y == 1)
{
V.X = -1;
V.Y = 0;
P.X--;
}
else if (V.Y == -1)
{
V.X = 1;
V.Y = 0;
P.X++;
}
}
else if (baffletype == 2)//Left
{
if (V.X == 1)
{
V.Y = 1;
V.X = 0;
P.Y++;
}
else if (V.X == -1)
{
V.Y = -1;
V.X = 0;
P.Y--;
}
else if (V.Y == 1)
{
V.X = 1;
V.Y = 0;
P.X++;
}
else if (V.Y == -1)
{
V.X = -1;
V.Y = 0;
P.X--;
}
}
else if (baffletype == 0)
{
if (V.X == 1)
{
V.Y = 0;
V.X = 1;
P.X++;
}
else if (V.X == -1)
{
V.Y = 0;
V.X = -1;
P.X--;
}
else if (V.Y == 1)
{
V.X = 0;
V.Y = 1;
P.Y++;
}
else if (V.Y == -1)
{
V.X = 0;
V.Y = -1;
P.Y--;
}
}
cout << "(" << P.X << ","<< P.Y << ")" << endl;
return P;
}
velocity checkPos(position P, velocity &V) //Directs the laser when the laser hits a baffle
{
int baffletype = gameBoard[P.X][P.Y];
if (baffletype == 1)//Right
{
if (V.X == 1)
{
V.Y = -1;
V.X = 0;
}
else if (V.X == -1)
{
V.Y = 1;
V.X = 0;
}
else if (V.Y == 1)
{
V.X = -1;
V.Y = 0;
}
else if (V.Y == -1)
{
V.X = 1;
V.Y = 0;
}
}
else if (baffletype == 2)//Left
{
if (V.X == 1)
{
V.Y = 1;
V.X = 0;
}
else if (V.X == -1)
{
V.Y = -1;
V.X = 0;
}
else if (V.Y == 1)
{
V.X = 1;
V.Y = 0;
}
else if (V.Y == -1)
{
V.X = -1;
V.Y = 0;
}
}
else if (baffletype == 0)
{
if (V.X == 1)
{
V.Y = 0;
V.X = 1;
P.X++;
}
else if (V.X == -1)
{
V.Y = 0;
V.X = -1;
P.X--;
}
else if (V.Y == 1)
{
V.X = 0;
V.Y = 1;
P.Y++;
}
else if (V.Y == -1)
{
V.X = 0;
V.Y = -1;
P.Y--;
}
}
//cout << "( " << P.X << ", " << P.Y << ")" << endl;
return V;
}
bool checkWall(position P, velocity V) //Checks to see if the laser hits the wall
{
//cout << "2" << endl;
P.addVelocity(V);
return (P.X > 9 || P.X < 0 || P.Y > 9 || P.Y < 0); //Checks to see if the next position is out of bounds
}
我没有一个完整的解决方案给你，只有几件事。
-
您应该使while循环测试更简单。这个怎么样（伪代码）：
bool done = false; while (!done) { // Process action loop cin >> action; action = toupper(action); // Make everything upper case processTheAction(action); done = areWeDoneYet(action); } -
将复杂的"我们完成了吗"任务和其他事情分解为功能。（分而治之）
bool areWeDoneYet(action) { switch (action) { case A: case B: ... (cases where we are not done) return false; case E: case F: ... (cases where we are done) return true; } } -
让您的"事件循环"变得简单。 让它调用一个复杂的函数"进程操作" 这样，您就可以判断在遇到问题时是否正忙于处理，或者事件循环是否有问题。
void processTheAction( action ) { switch (action) { case A: case a: // Optional method if you don't do topper on Action // Code for action 'A' goes here // If a *lot* of code make a function like "ProcessActionA()" break; case B: case b: // not needed if you do topper // Code for action 'B' goes here break; default: printf("I'm hosed cause I forgot to manage action [%c]n", action); } }
不知道这是否有帮助，但它可能会帮助您解决问题。
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