From db8881f6c2b16e86dc7820d585783066015202c3 Mon Sep 17 00:00:00 2001
From: Constantin Berhard <constantin@exxxtremesys.lu>
Date: Fri, 1 Aug 2014 01:11:29 +0200
Subject: [PATCH] SOKOBAN

---
 labyrinth.py |  1 +
 player.py    | 36 +++++++++++++++++++++++++++++++++++-
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/labyrinth.py b/labyrinth.py
index 22ff646..c8f3e20 100644
--- a/labyrinth.py
+++ b/labyrinth.py
@@ -4,6 +4,7 @@ from enum import Enum
 from functools import reduce
 
 directions = {"north": (-1, 0), "east": (0, 1), "west": (0, -1), "south": (1, 0)}
+directions_inv = {v:k for k, v in directions.items()}
 
 class Labyrinth:
 	class GroundType(Enum):
diff --git a/player.py b/player.py
index 6d19890..59921cd 100644
--- a/player.py
+++ b/player.py
@@ -1,6 +1,7 @@
 from util import *
 from thing import Thing
 from labyrinth import directions as directionOffsets
+from labyrinth import directions_inv as directions_t
 
 goVerbs = ['go', 'walk']
 sayVerbs = ['say', 'talk', 'scream']
@@ -43,6 +44,32 @@ class Player(Thing):
 	def __str__(self):
 		return "another player"
 	
+	def isMovedBy(self,pusher):
+		dx = self.field.column - pusher.field.column
+		dy = self.field.row    - pusher.field.row
+		pushTarget = self.field.neighbor(dx=dx,dy=dy)
+		travelDistance = 1
+		while pushTarget is not None and not pushTarget.isWalkable():
+			travelDistance+=1
+			pushTarget = pushTarget.neighbor(dx=dx,dy=dy)
+		if pushTarget is None:
+			self.send("Another player pushed you out of the playing field.\nYou are dead.\nGood Bye.")
+			self.game.removePlayer(self)
+		else:
+			assert travelDistance >= 1
+			if travelDistance == 1:
+				self.send("Another player pushed you to the "+directions_t[(dy,dx)]+".")
+			elif travelDistance == 2:
+				self.send("Another player pushed you SO HARD to the "+directions_t[(dy,dx)]+", that you flew right THROUGH A WALL!\nThis must have been a very rare occurence of quantum tunneling!\nYou feel a bit dizzy.")
+			else:
+				self.send("Another player pushed you SO HARD to the "+directions_t[(dy,dx)]+", that you flew through a very thick, gamma-ray proof wall.\nYou are unsure about how you survived this, but quickly remember that you are in a completely virtual world with arbitrary phsyics. This makes you feel comfortable.")
+			playerToPush = None
+			for thing in pushTarget.things:
+				if thing != self and isinstance(thing, Player):
+					playerToPush = thing # yes, this may have higher speeds than one *grin*
+					self.send("After coming out of the wall with incredible speed, you hit another player, who is in turn pushed away by your momentum. Poor bastard...")
+			self.game.labyrinth.moveThing(self,pushTarget,(lambda:playerToPush.isMovedBy(self) if playerToPush else None))
+	
 	# high(er)-level functions
 	def readCmd(self, cmd):
 		words = cmd.lower().split()
@@ -63,7 +90,14 @@ class Player(Thing):
 			if target is None or not target.isWalkable():
 				self.send("Sorry, you cannot go there")
 				return
-			self.game.labyrinth.moveThing(self, target)
+			playerToPush = None
+			for thing in target.things:
+				if thing != self and isinstance(thing, Player):
+					playerToPush = thing
+					self.send("By moving to the "+direction[0]+" you pushed another player away."))
+			
+			self.game.labyrinth.moveThing(self, target, (lambda:playerToPush.isMovedBy(self) if playerToPush else None))
+			
 		elif verb in sayVerbs:
 			msg = " ".join(words[1:])
 			for dx, dy in [(0, 0)]+directionOffsets.values():
-- 
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