turtle

DeitelC/Chapter6/turtle.c

@@ -0,0 +1,60 @@
+#include <stdio.h>
+#define size 50
+
+int main(void) {
+    int turtle[size][size] = {0};
+    int penUp = 1;
+    double in = 0.00;
+    int way = 0; // 0 right, 1 down, 2 left, 3 up
+    int row = 0, column = 0;
+
+    while (1) {
+        puts("Enter command between 1-9 (e.g., 5.12 for move 12 steps):");
+        scanf("%lf", &in);
+
+        if (in == 9.00) {
+            break;
+        } else if (in == 1.00) {
+            penUp = 1;
+        } else if (in == 2.00) {
+            penUp = 0;
+        } else if (in == 3.00) {
+            way = (way + 1) % 4; // Turn right
+        } else if (in == 4.00) {
+            way = (way - 1 + 4) % 4; // Turn left
+        } else if (in == 6.00) {
+            for (size_t i = 0; i < size; i++) {
+                for (size_t j = 0; j < size; j++) {
+                    printf("%c", turtle[i][j] ? '*' : ' ');
+                }
+                printf("\n");
+            }
+        } else if (in >= 5.00 && in < 6.00) {
+            float temp = (in - 5.00) * 100;
+            int steps = (int)temp;
+
+            for (int i = 0; i < steps; i++) {
+                if (!penUp) {
+                    turtle[row][column] = 1;
+                }
+
+                switch (way) {
+                    case 0: // Right
+                        if (column < size - 1) column++;
+                        break;
+                    case 1: // Down
+                        if (row < size - 1) row++;
+                        break;
+                    case 2: // Left
+                        if (column > 0) column--;
+                        break;
+                    case 3: // Up
+                        if (row > 0) row--;
+                        break;
+                }
+            }
+        }
+    }
+
+    return 0;
+}