From 6a038d8967cc0b189a22550d27b68b2da6477287 Mon Sep 17 00:00:00 2001
From: Treeki <treeki@gmail.com>
Date: Fri, 22 Feb 2013 00:15:24 +0100
Subject: added Star Coin unlocks

---
 src/unlock.py | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/unlock.py b/src/unlock.py
index cf3e6fd..f87e5b1 100644
--- a/src/unlock.py
+++ b/src/unlock.py
@@ -1,6 +1,7 @@
 import re
 
 LEVEL_RE = re.compile(r'^([0-9]{1,2})-([0-9]{1,2})( secret)?$')
+COINS_RE = re.compile(r'^(unspent |total )?star coins (<|>|==|!=) ([0-9]{1,3})$')
 COMBINER_RE = re.compile(r'[ ]*(and|or)[ ]*')
 
 class UnlockParseError(ValueError):
@@ -29,6 +30,16 @@ def _parseUnlockBit(text):
 			raise UnlockParseError('world must be between 1 to 10 inclusive; not %s' % w)
 		return ('level', w, l, (secret != None))
 
+	# ... or star coins?
+	m = COINS_RE.match(text)
+	if m:
+		is_unspent, op, count_s = m.groups()
+		if is_unspent == 'unspent ':
+			mode = 'unspent'
+		else:
+			mode = 'total'
+		return ('star_coins', op, int(count_s), mode)
+
 	# OK, let's parse parentheses
 	pLevel = 0
 	endAt = len(text) - 1
@@ -41,7 +52,7 @@ def _parseUnlockBit(text):
 	currentSubTermStart = None
 
 	skip = 0
-	
+
 	for index, char in enumerate(text):
 		if skip > 0:
 			skip -= 1
@@ -108,6 +119,8 @@ def stringifyUnlockData(data):
 		return ''
 	elif kind == 'level':
 		return '%02d-%02d%s' % (data[1], data[2], (' secret' if data[3] else ''))
+	elif kind == 'star_coins':
+		return '%s star coins %s %d' % (data[3], data[1], data[2])
 	elif kind == 'and' or kind == 'or':
 		return (' %s ' % kind).join(map(lambda x: '(%s)' % stringifyUnlockData(x), data[1]))
 
@@ -125,6 +138,16 @@ def packUnlockSpec(data):
 
 		return chr(one) + chr(level - 1)
 
+	elif kind == 'star_coins':
+		k, op, count, mode = data
+		ops = ('==', '!=', '<', '>')
+		one = (4 << 6) | ops.index(op)
+		if mode == 'unspent':
+			modeID = 0x80
+		else:
+			modeID = 0
+		return chr(one) + chr(modeID | (count >> 8)) + chr(count & 0xFF)
+
 	elif kind == 'and' or kind == 'or':
 		terms = data[1]
 		cond = 2 if (kind == 'and') else 3
@@ -136,6 +159,7 @@ def packUnlockSpec(data):
 if __name__ == '__main__':
 	p1 = parseUnlockText('((01-01 secret) and (01-02)) or (02-99 secret) or (01-01)')
 	p2 = parseUnlockText('(1-1 secret) or ((1-2) and (1-3 secret)) or (2-1)')
+	p3 = parseUnlockText('(star coins > 200) or ((unspent star coins == 300) and (total star coins != 400))')
 	
 	print
 	print repr(p1)
@@ -145,6 +169,10 @@ if __name__ == '__main__':
 	print repr(p2)
 	print
 	print stringifyUnlockData(p2)
+	print
+	print repr(p3)
+	print
+	print stringifyUnlockData(p3)
 
 	from sys import exit
 	exit()
-- 
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