From 7454713a9be6fdfc4ede96f52b787423e941d4a0 Mon Sep 17 00:00:00 2001
From: Marc Zinnschlag <marc@zpages.de>
Date: Sat, 16 Jun 2012 16:06:15 +0200
Subject: [PATCH] addet provisional implementation of AiWander (doesn't do
 anything yet)

---
 apps/openmw/mwscript/aiextensions.cpp  | 30 ++++++++++++++++++++++++++
 apps/openmw/mwscript/docs/vmformat.txt |  4 +++-
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/apps/openmw/mwscript/aiextensions.cpp b/apps/openmw/mwscript/aiextensions.cpp
index aa541e55d3..54a67a8cd3 100644
--- a/apps/openmw/mwscript/aiextensions.cpp
+++ b/apps/openmw/mwscript/aiextensions.cpp
@@ -88,7 +88,31 @@ namespace MWScript
                 }
         };
 
+        template<class R>
+        class OpAiWander : public Interpreter::Opcode1
+        {
+            public:
 
+                virtual void execute (Interpreter::Runtime& runtime, unsigned int arg0)
+                {
+                    MWWorld::Ptr ptr = R()(runtime);
+
+//                    Interpreter::Type_Float range = runtime[0].mFloat;
+                    runtime.pop();
+
+//                    Interpreter::Type_Float duration = runtime[0].mFloat;
+                    runtime.pop();
+
+//                    Interpreter::Type_Float time = runtime[0].mFloat;
+                    runtime.pop();
+
+                    // discard additional idle arguments for now
+                    // discard additional arguments (reset), because we have no idea what they mean.
+                    for (unsigned int i=0; i<arg0; ++i) runtime.pop();
+
+                    std::cout << "AiWanter" << std::endl;
+                }
+        };
 
         const int opcodeAiTravel = 0x20000;
         const int opcodeAiTravelExplicit = 0x20001;
@@ -96,6 +120,8 @@ namespace MWScript
         const int opcodeAiEscortExplicit = 0x20003;
         const int opcodeGetAiPackageDone = 0x200007c;
         const int opcodeGetAiPackageDoneExplicit = 0x200007d;
+        const int opcodeAiWander = 0x20010;
+        const int opcodeAiWanderExplicit = 0x20011;
 
         void registerExtensions (Compiler::Extensions& extensions)
         {
@@ -103,6 +129,8 @@ namespace MWScript
                 opcodeAiTravelExplicit);
             extensions.registerInstruction ("aiescort", "cffff/l", opcodeAiEscort,
                 opcodeAiEscortExplicit);
+            extensions.registerInstruction ("aiwander", "fff/llllllllll", opcodeAiWander,
+                opcodeAiWanderExplicit);
 
             extensions.registerFunction ("getaipackagedone", 'l', "", opcodeGetAiPackageDone,
                 opcodeGetAiPackageDoneExplicit);
@@ -114,6 +142,8 @@ namespace MWScript
             interpreter.installSegment3 (opcodeAiTravelExplicit, new OpAiTravel<ExplicitRef>);
             interpreter.installSegment3 (opcodeAiEscort, new OpAiEscort<ImplicitRef>);
             interpreter.installSegment3 (opcodeAiEscortExplicit, new OpAiEscort<ExplicitRef>);
+            interpreter.installSegment3 (opcodeAiWander, new OpAiWander<ImplicitRef>);
+            interpreter.installSegment3 (opcodeAiWanderExplicit, new OpAiWander<ExplicitRef>);
             interpreter.installSegment5 (opcodeGetAiPackageDone, new OpGetAiPackageDone<ImplicitRef>);
             interpreter.installSegment5 (opcodeGetAiPackageDoneExplicit,
                 new OpGetAiPackageDone<ExplicitRef>);
diff --git a/apps/openmw/mwscript/docs/vmformat.txt b/apps/openmw/mwscript/docs/vmformat.txt
index 219af9a0b4..7faba7f415 100644
--- a/apps/openmw/mwscript/docs/vmformat.txt
+++ b/apps/openmw/mwscript/docs/vmformat.txt
@@ -29,7 +29,9 @@ op 0x2000c: PCLowerRank
 op 0x2000d: PCJoinFaction
 op 0x2000e: PCGetRank implicit
 op 0x2000f: PCGetRank explicit
-opcodes 0x20010-0x3ffff unused
+op 0x20010: AiWander
+op 0x20011: AiWander, explicit reference
+opcodes 0x20012-0x3ffff unused
 
 Segment 4:
 (not implemented yet)