optimizations

2022/python/day17.py

@@ -1,7 +1,8 @@
 import matrix
 import shared
-from dataclasses import dataclass
-from typing import Tuple
+from dataclasses import dataclass, field
+from functools import cached_property
+from typing import Tuple, List
 import operator
 
 
@@ -66,30 +67,20 @@ class Shape:
 
     @property
     def coords(self):
-        actual_coords = []
-        for y,x in self.shape[1]:
-            actual_coords.append((y+self.y,x+self.x))
-        return actual_coords
+        return [ (y+self.y,x+self.x) for y,x in self.shape[1]]
 
 
-# TODO: check left/right movement into an object
 
 
 def find_highest(shapes, default_height):
     if not shapes:
         return default_height
-    all_y = []
-    for s in shapes:
-        for y,_ in s.coords:
-            all_y.append(y)
-    return min(all_y)
-
-def all_coords(shapes):
-    coords = set()
-    for s in shapes:
-        for c in s.coords:
-            coords.add(c)
-    return coords
+    #return min([y for s in shapes for y,_ in s.coords])
+    return min([s.coords[0][0] for s in shapes[-20:]])
+               #all_y = []
+               #for s in shapes[-20:]:
+               #    all_y.append(s.coords[0][0])
+               #return min(all_y)
 
 all_coords = set()
 
@@ -119,11 +110,8 @@ def out_of_bounds(height, width, shapes, offset):
     return False
 
 
-
-
-# @shared.profile
+@shared.profile
 def part1(rows):
-    print(rows)
     instructions = [r for r in rows]
     height = 20 
     height = 2022*4+4
@@ -133,15 +121,14 @@ def part1(rows):
     rock = 0
     shapes = []
     spawning = True
-    while rock < 2022:
+    while rock < 2022: #1_000_000_000_000:
         if spawning:
+            # Add last rock's coords to all coords
             if shapes:
                 for c in shapes[-1].coords:
                     all_coords.add(c)
-            if rock % 1000 == 0:
-                print("Spawn rock #", rock)
             X = 2
-            Y = find_highest(shapes, height)  - 4
+            Y = find_highest(shapes, height) - 4
             shape = Shape(rock=rock, y=Y, x=X, shape=ORDER[rock%len(ORDER)])
             shapes.append(shape)
             spawning = False
@@ -158,19 +145,14 @@ def part1(rows):
 
 
         # Try to move right/left
-        #print(f"Jet of gas pushes {shapes[-1].at_rest_char} rock", next_move)
 
         next_offset = OFF[next_move]
         if not out_of_bounds(height,width, shapes, (0, next_offset[1])) and not collision_at(shapes, next_offset):
                 shapes[-1].x += next_offset[1] 
-        else:
-            pass
-            #print("but nothing happens")
 
         # check if hit bottom
         next_offset = (1, next_offset[1]) 
         if out_of_bounds(height, width, shapes, (next_offset[0],0)):
-            #print("rock comes to rest")
             # hit bottom dont move down
             shapes[-1].moving = False
             spawning = True
@@ -185,13 +167,8 @@ def part1(rows):
         else:
             # can move down
             shapes[-1].y += 1
-            #print("rock falls one unit")
 
     #render(width, height, shapes)
-
-    print(shapes[0], height, shapes[0].coords)
-
-    print("LAST ROCK COUNT", rock+1)
     print(height - find_highest(shapes, height))