From 6973ec82ba5f7e6cc978a73c44887c416fbaa498 Mon Sep 17 00:00:00 2001
From: Bryan Bishop <kanzure@gmail.com>
Date: Wed, 2 May 2012 13:37:11 -0500
Subject: [PATCH] figuring out where a script appears based on a known address

---
 extras/README.md  | 28 +++++++++++++++++++++++++++-
 extras/crystal.py |  4 ++++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/extras/README.md b/extras/README.md
index 63baf6d8f..240476b68 100644
--- a/extras/README.md
+++ b/extras/README.md
@@ -35,7 +35,7 @@ import crystal
 crystal.run_tests()
 ```
 
-#### Investigating scripts from a known address
+#### Parsing a script at a known address
 
 Here is a demo of how to investigate a particular script, starting with only an address to a known script (0x58043). In this case, the script calls the `2writetext` command to show some dialog. This dialog will be shown at the end of the example.
 
@@ -125,3 +125,29 @@ UnknownText_0x580c7: ; 0x580c7
 ; 0x581e5
 ```
 
+#### Figuring out where a script appears based on a known address
+
+Another approach is to parse the entire ROM, then check a script at a particular address. This has the advantage that the script object will have the `map_group` and `map_id` variables set.
+
+```python
+import crystal
+
+# parse the ROM
+crystal.run_main()
+
+# get the parsed script
+script = crystal.script_parse_table[0x58043]
+
+# read its attributes to figure out map group / map id
+map_group = script.map_group
+map_id = script.map_id
+
+# MapHeader is not given all the info yet
+# in the mean time "map_names" contains some metadata
+map_dict = crystal.map_names[map_group][map_name]
+map_header = map_dict["header_new"]
+
+print map_dict["name"]
+# Ruins of Alph Outside
+```
+
diff --git a/extras/crystal.py b/extras/crystal.py
index e1f83fb8c..e468ab423 100644
--- a/extras/crystal.py
+++ b/extras/crystal.py
@@ -2295,6 +2295,10 @@ class Script:
         if not label:
             label = self.base_label + hex(self.address)
         self.label = Label(name=label, address=address, object=self)
+        if "map_group" in kwargs.keys():
+            self.map_group = kwargs["map_group"]
+        if "map_id" in kwargs.keys():
+            self.map_id = kwargs["map_id"]
         #parse the script at the address
         if "use_old_parse" in kwargs.keys() and kwargs["use_old_parse"] == True:
             self.old_parse(**kwargs)