09 A, værre

09/2022-12-09-A.py

@@ -1,7 +1,5 @@
 #!/usr/bin/env python3
 
-import os,time
-
 a="""R 4
 U 4
 L 3
@@ -10,79 +8,101 @@ R 4
 D 1
 L 5
 R 2"""
-#a=open("/Users/rasmus/Gits/aoc2022/09/ii").read().strip()
+a=open("/Users/rasmus/Gits/aoc2022/09/i").read().strip()
+
 b={"L":-1, "U":1, "R":1, "D":-1}
+head=[(10,10)]
+tail=[(10,10)]
 
-def mov(cmd,loc):
+def is_close(objA,objB):
-  if cmd[0] in ["U","D"]:
+  return abs(objA[0]-objB[0])<2 and abs(objA[1]-objB[1])<2
-    return (loc[0],sum([loc[1],int(cmd[2:])*b[cmd[0]]]))
+
+def mov(cmd,obj):
+  steps=int(cmd[2:])+1
+  result=[]
+  if cmd[0] == "U":
+    for i in range(1,steps):
+      result.append((obj[0],obj[1]+i))
+  elif cmd[0] == "D":
+    for i in range(1,steps):
+      result.append((obj[0],obj[1]-i))
+  elif cmd[0] == "R":
+    for i in range(1,steps):
+      result.append((obj[0]+i,obj[1]))
   else:
-    return (sum([loc[0],int(cmd[2:])*b[cmd[0]]]),loc[1])
+    for i in range(1,steps):
+      result.append((obj[0]-i,obj[1]))
+  print("cmd: {} result: {}".format(cmd,result))
+  return result
 
-logH = [(0,0)]
+counter = 1
-logT = [(0,0)]
 for l in a.split("\n"):
-  #print("LogT: {}\n".format(logT[-1]))
+  print(f"\nNew line ({counter})")
-  logH.append(mov(l,logH[-1]))
+  counter+=1
-  #print("Diff: {} {}, l {}".format(logH[-1][0]-logT[-1][0],logH[-1][1]-logT[-1][1],l))
+  head_start = head[-1]
-  #print("LogH: {}".format(logH[-1]))
+  #dia_jump = mov(l,head_start)[-2]
-  # If in same column:
+  #print(f"-{dia_jump}-")
-  if logT[-1][0]==logH[-1][0]:
+  #break
-    # Case new head is next to or covering tail:
+  print(f"head start: {head_start}")
-    if logT[-1][1]==logH[-1][1]:
+  head_move = mov(l,head_start)
-      #print("Samme: {} {} {}".format(l,logH[-1],logT[-1]))
+  head.extend(head_move)
-      logT.append(logT[-1])
-      continue
-    elif abs(logT[-1][1]-logH[-1][1])<2:
-      #print("Tæt: {} {} {}".format(l,logH[-1],logT[-1]))
-      logT.append(logT[-1])
-      continue
-    # If above move to one above, else one below
-    logT.append((logT[-1][0],logH[-1][1]+1)) if logT[-1][1]>logH[-1][1] else logT.append((logT[-1][0],logH[-1][1]-1))
-    print("Her")
 
-  # If same row:
+  tpos=tail[-1]
-  elif logT[-1][1]==logH[-1][1]:
+  hpos=head[-1]
-    # Case next to:
+  #print(is_close(tpos,hpos))
-    if abs(logT[-1][1]-logH[-1][1])<2:
+  #continue
-      logT.append(logT[-1])
+  #print(head_start)
-      continue
+  print(f"HS {head_start} TP {tpos} HP {hpos}")
-    logT.append((logH[-1][0]+1,logT[-1][1])) if logT[-1][0]>logH[-1][0] else logT.append((logH[-1][0]-1,logT[-1][1]))
 
-  # If neither:
+  # Diagonalt.
-  else:
+  if is_close(hpos,tpos):
-    # Case diagonally next to
+    print("Is close")
-    if abs(logT[-1][0]-logH[-1][0])<2 and abs(logT[-1][1]-logH[-1][1])<2:
+    tail.append(tpos)
-      #print("Diagon: {} LogH: {} LogT: {}".format(abs(logT[-1][0]-logH[-1][0]),logH[-1],logT[-1]))
+    continue
-      logT.append(logT[-1])
+  
-      continue
+  if hpos[1]!=tpos[1] and tpos[0]!=hpos[0]:
-    if l[0] in ["U","D"]:
+    print(f"Udfordringer. {head_move} tpos: {tpos} hpos: {hpos} hs: {head_start}")
-      logT.append((logH[-1][0],logH[-1][1]+1)) if logT[-1][1]>logH[-1][1] else logT.append((logH[-1][0],logH[-1][1]-1))
+    temp = []
-      #print("UD")
+    all_head_move = [head_start]
+    all_head_move.extend(head_move)
+    for move in all_head_move:
+      if is_close(move,tpos):
+        temp = move 
+      else:
+        break
+    if temp == []:
+      print(f"All is lost.\nhpos: {hpos}\ntpos: {tpos}\nhead_start: {head_start}\nhead_move: {head_move}")
+      exit()
+    tail.append(temp)
+    tpos=temp
+    print(f"Sat move til {temp}")
+
+  # Same column
+  if tpos[0]==hpos[0]:
+    # If head above of tail
+    if hpos[1]>tpos[1]:
+      print("Head is above of tail {} {}".format(hpos[1],tpos[1]))
+      steps = hpos[1]-tpos[1]-1
+      tail.extend(mov(f"U {steps}",tpos))
     else:
-      logT.append((logH[-1][0]+1,logH[-1][1])) if logT[-1][0]>logH[-1][0] else logT.append((logH[-1][0]-1,logH[-1][1]))
+      print("Head is below tail {} {}".format(hpos[1],tpos[1]))
+      steps = tpos[1]-hpos[1]-1
+      tail.extend(mov(f"D {steps}",tpos))
 
+  # Same rpw
+  elif tpos[1]==hpos[1]:
+    print(f"Same row. tpos: {tpos} hpos: {hpos}")
+    if hpos[0]>tpos[0]:
+      steps = hpos[0]-tpos[0]-1
+      print(f"Steps (hpos>tpos) {steps}")
+      tail.extend(mov(f"R {steps}",tpos))
+      #print(mov(f"R {steps}",tpos))
+    else:
+      steps = tpos[0]-hpos[0]-1
+      print(f"Steps hpos<tpos {steps}")
+      tail.extend(mov(f"L {steps}",tpos))
+      #print(mov(f"L {steps}",tpos))
 
-print(logH)
+print(head)
-print(logT)
+print(tail)
-print(len(sorted(set(logT))))
+print(len(sorted(set(tail))))
-exit()
-
-result=[]
-for i in range(0,50):
-  result.append(list(".")*100)
-
-
-for i in range(0,len(logH)):
-  result[logT[i][0]][logT[i][1]]="T"
-  result[logH[i][0]][logH[i][1]]="H"
-
-  for b in result:
-    print("".join(b))
-  print(f"{i}\n\n")
-  time.sleep(2)
-  os.system("clear")
-  result[logH[i][0]][logH[i][1]]="."
-  result[logT[i][0]][logT[i][1]]="."
-
-print(len(sorted(set(logT))))