Finished 2023-12-10 p2

2023/day10/part2.py

@@ -56,6 +56,7 @@ found = False
 start = start_coords(grid)
 cur = start
 prev = cur
+steps.append(start)
 count = 0
 
 def wall(loc):
@@ -185,10 +186,16 @@ while not found:
 p(grid,steps,inside)
 print(count)
 print(count/2)
+
+
+# shapely doesn't give the right answer 
+"""
 polygon = Polygon(steps)
 
 for ydx,y in enumerate(grid):
     for xdx,x in enumerate(y):
+        if (ydx,xdx) in steps:
+            continue
         if polygon.contains(Point(ydx,xdx)):
             inside.append((ydx,xdx))
         if len(sys.argv) == 4:
@@ -197,3 +204,28 @@ for ydx,y in enumerate(grid):
 if len(sys.argv) == 2:
     p(grid,steps,inside)
 print(len(inside))
+"""
+
+# but Mathplotlib does
+
+from matplotlib.path import Path
+inside = []
+print(steps)
+
+path = Path(steps)
+
+for ydx,y in enumerate(grid):
+    for xdx,x in enumerate(y):
+        if (ydx,xdx) in steps:
+            continue
+        if path.contains_point((ydx,xdx)):
+            inside.append((ydx,xdx))
+        if len(sys.argv) == 4:
+            p(grid,steps,inside,xdx,ydx)
+            time.sleep(float(sys.argv[3]))
+if len(sys.argv) == 2:
+    p(grid,steps,inside)
+print(len(inside))
+
+
+