1 files changed, 136 insertions, 0 deletions
diff --git a/ee1301/wk5/hw5_directory/strap012_HW5A.cpp b/ee1301/wk5/hw5_directory/strap012_HW5A.cpp
new file mode 100644
index 0000000..95a80ad
--- /dev/null
+++ b/ee1301/wk5/hw5_directory/strap012_HW5A.cpp
@@ -0,0 +1,136 @@
+#include <iostream>
+#include <fstream>
+#include <string>
+using namespace std;
+ifstream fin;
+ofstream fout;
+
+const char BLANK = '-';
+const char ROBOT = 'X';
+const char GOAL = 'O';
+const char WALL = 'W';
+const int screen_num_lines = 25;
+const int lengthX = 10;       // for now we only support square boards
+const int lengthY = 10;       // it "should" work with non-square, YMMV
+// Board is described by the following coordinate system:
+// 0 --> +X
+// |
+// |
+// V
+// +Y
+
+void initBoardDefault(char board[lengthX][lengthY], int &xPos, int &yPos);
+void initBoardCustom(char board[lengthX][lengthY], int &xPos, int &yPos);
+void clearScreen();
+void showGrid(char board[lengthX][lengthY]);
+
+bool hasChar(char board[lengthX][lengthY], char findMe);
+void updateGrid(char board[lengthX][lengthY], int &xPos, int &yPos, char action);
+
+int main()
+{
+    srand(time(NULL));
+    char board[lengthX][lengthY] = {0};
+    int xPos = 0, yPos = 0;
+    fin.open("maze.txt"); //maze.txt is in the directory that it is run in
+    if (!fin.is_open()) //If a custom maze does not exist, generate one automatically
+    {
+        initBoardDefault(board, xPos, yPos);
+    } else {
+        initBoardCustom(board, xPos, yPos);
+    }
+    while(hasChar(board, GOAL))
+    {
+        char action;
+        clearScreen();
+        showGrid(board);
+        cout << "Where would you like to go? (l, r, u, d) " << endl << "Wall Boolean " << hasChar(board, GOAL) << endl;
+        cin >> action;
+
+        updateGrid(board, xPos, yPos, action);
+    } 
+
+
+    clearScreen();
+    showGrid(board);
+    cout << "You found the cookie!  Congratulations!\n";
+
+    return 0;
+}
+
+//The default (no custom file) maze is procedurally generated
+void initBoardDefault(char board[lengthX][lengthY], int &xPos, int &yPos) {
+        for(int curRow=0; curRow < lengthY; curRow++) {
+            for(int curCol=0; curCol < lengthX; curCol++) {
+                if ( (rand() % 5) + 1 == 4 || (rand() % 10) + 1 == 7) { 
+                    board[curCol][curRow] = WALL;
+                        } else {
+                        board[curCol][curRow] = BLANK;
+                        }
+            }
+        }
+        
+
+        board[0][0] = GOAL;
+        board[lengthX/2][lengthY/2] = ROBOT;
+
+        xPos = lengthX/2;
+        yPos = lengthY/2;
+}
+
+void initBoardCustom(char board[lengthX][lengthY], int &xPos, int &yPos)
+{
+    for (int curRow = 0; curRow < lengthY; curRow++)
+    {
+        for (int curCol = 0; curCol < lengthX; curCol++)
+        {
+            fin >> board[curCol][curRow];
+            if (board[curCol][curRow] == 'X') {
+                xPos = curCol;
+                yPos = curRow;
+            }
+        }
+    }
+
+}
+
+bool hasChar(char board[lengthX][lengthY], char findMe) {
+    for(int curRow=0; curRow < lengthY; curRow++) {
+        for(int curCol=0; curCol < lengthX; curCol++) {
+            if(board[curCol][curRow] == findMe) {
+                return true;
+            }
+        } //end curCol loop
+    } // end curRow loop
+
+    return false;
+}
+
+void clearScreen() {
+    for(int i = 0;i<screen_num_lines;i++) {
+        cout << endl;
+    }
+}
+
+void showGrid(char board[lengthX][lengthY]) {
+    for(int curRow=0; curRow < lengthY; curRow++) {
+        for(int curCol=0; curCol < lengthX; curCol++) {
+            cout << board[curCol][curRow];
+        } // end curCol loop
+        cout << endl;
+    } // end curRow loop
+}
+
+void updateGrid(char board[lengthX][lengthY],int & xPos, int & yPos,char action) {
+    board[xPos][yPos] = BLANK;
+    if       (action == 'l' && xPos > 0) {
+            xPos--;
+    } else if(action == 'r' && xPos < lengthX - 1) {
+            xPos++;
+    } else if(action == 'u' && yPos > 0) {
+            yPos--;
+    } else if(action == 'd' && yPos < lengthY - 1) {
+            yPos++;
+    }
+    board[xPos][yPos] = ROBOT;
+}