Created a system for inserting arbitrary code fragments into game scripts, and added an initial fragment to fix the bug of being stuck in the past in the DW1 SCN version

svn-id: r42500

1 files changed, 14 insertions, 0 deletions

diff --git a/engines/tinsel/pcode.h b/engines/tinsel/pcode.h
index 4bdfcf5626..fad50cdb9d 100644
--- a/engines/tinsel/pcode.h
+++ b/engines/tinsel/pcode.h
@@ -54,6 +54,17 @@ enum GSORT {
 
 enum RESCODE {RES_WAITING, RES_FINISHED, RES_CUTSHORT};
 
+// The following structure is used to introduce bug fixes into the scripts used by the games
+
+struct WorkaroundEntry {
+	TinselEngineVersion version;
+	bool scnFlag;					// Only applicable for Tinsel 1 (DW 1)
+	SCNHANDLE hCode;				// Script to apply fragment to
+	int ip;							// Script offset to run this fragment before
+	int numBytes;					// Number of bytes in the script
+	const byte *script;				// Instruction(s) to execute
+};
+
 struct INT_CONTEXT {
 
 	// Elements for interpret context management
@@ -82,6 +93,9 @@ struct INT_CONTEXT {
 	RESCODE resumeCode;
 	RESUME_STATE resumeState;
 
+	// Used to store execution state within a script workaround fragment
+	const WorkaroundEntry *fragmentPtr;
+
 	void syncWithSerializer(Common::Serializer &s);
 };
 typedef INT_CONTEXT *PINT_CONTEXT;