2022 day14 part1

1 files changed, 25 insertions, 2 deletions

diff --git a/src/2022/day14/aoc.cpp b/src/2022/day14/aoc.cpp
index a96877d..00bc0c8 100644
--- a/src/2022/day14/aoc.cpp
+++ b/src/2022/day14/aoc.cpp
@@ -3,6 +3,29 @@
 namespace aoc2022 {
 rock::three rock::t3;
 
+int fall1(cave& cv) {
+  bool fall{true};
+  int n{0};
+  while(fall) {
+    auto p = cv.drop(cv.to({500,0}));
+    rock::pos ns[] = {{p.x, p.y + 1}, {p.x - 1, p.y + 1}, {p.x + 1, p.y + 1}};
+    for (int i = 0; i < 3; i++) {
+      if (!cv.valid(ns[i])) {
+        fall = false;
+      }
+    }
+    if (fall) {
+      cv.get(p) = 'o';
+      n++;
+    }
+  }
+  return n;
+}
+
+int fall2(cave& cv) {
+  return 0;
+}
+
 std::pair<int, int> day14(line_view file) {
   std::vector<rock> rocks;
   per_line(file, [&rocks](line_view lv){
@@ -17,8 +40,8 @@ std::pair<int, int> day14(line_view file) {
     cv.mark(r);
   }
 
-  // cv.print();
-  return {0, 0};
+  cave cv2{cv};
+  return {fall1(cv), fall2(cv2)};
 }
 }