Implemented script commands StartCombat, StopCombat, GetTarget.

Also renamed one field of AIWander class because it's not longer
unknown.

apps/esmtool/record.cpp

@@ -13,8 +13,8 @@ void printAIPackage(ESM::AIPackage p)
         std::cout << "    Distance: " << p.mWander.mDistance << std::endl;
         std::cout << "    Duration: " << p.mWander.mDuration << std::endl;
         std::cout << "    Time of Day: " << (int)p.mWander.mTimeOfDay << std::endl;
-        if (p.mWander.mUnk != 1)
-            std::cout <<  "    Unknown: " << (int)p.mWander.mUnk << std::endl;
+        if (p.mWander.mShouldRepeat != 1)
+            std::cout <<  "    Unknown: " << (int)p.mWander.mShouldRepeat << std::endl;
 
         std::cout << "    Idle: ";
         for (int i = 0; i != 8; i++)

apps/openmw/mwmechanics/aiactivate.cpp

@@ -17,5 +17,5 @@ bool MWMechanics::AiActivate::execute (const MWWorld::Ptr& actor,float duration)
 
 int MWMechanics::AiActivate::getTypeId() const
 {
-    return 4;
+    return TypeIdActivate;
 }

apps/openmw/mwmechanics/aicombat.cpp

@@ -135,7 +135,7 @@ namespace MWMechanics
 
     int AiCombat::getTypeId() const
     {
-        return 5;
+        return TypeIdCombat;
     }
 
     unsigned int AiCombat::getPriority() const
@@ -143,6 +143,11 @@ namespace MWMechanics
         return 1;
     }
 
+    const std::string &AiCombat::getTargetId() const
+    {
+        return mTargetId;
+    }
+
     AiCombat *MWMechanics::AiCombat::clone() const
     {
         return new AiCombat(*this);

apps/openmw/mwmechanics/aicombat.hpp

@@ -23,6 +23,8 @@ namespace MWMechanics
 
             virtual unsigned int getPriority() const;
 
+            const std::string &getTargetId() const;
+
         private:
             std::string mTargetId;
 

apps/openmw/mwmechanics/aiescort.cpp

@@ -179,7 +179,7 @@ namespace MWMechanics
 
     int AiEscort::getTypeId() const
     {
-        return 2;
+        return TypeIdEscort;
     }
 }
 

apps/openmw/mwmechanics/aifollow.cpp

@@ -23,5 +23,5 @@ MWMechanics::AiFollow *MWMechanics::AiFollow::clone() const
 
  int MWMechanics::AiFollow::getTypeId() const
 {
-    return 3;
+    return TypeIdFollow;
 }

apps/openmw/mwmechanics/aipackage.hpp

@@ -12,6 +12,15 @@ namespace MWMechanics
     class AiPackage
     {
         public:
+            enum TypeId {
+                TypeIdNone = -1,
+                TypeIdWander = 0,
+                TypeIdTravel = 1,
+                TypeIdEscort = 2,
+                TypeIdFollow = 3,
+                TypeIdActivate = 4,
+                TypeIdCombat = 5
+            };
 
             virtual ~AiPackage();
       
@@ -21,7 +30,7 @@ namespace MWMechanics
             ///< \return Package completed?
             
             virtual int getTypeId() const = 0;
-            ///< 0: Wanter, 1 Travel, 2 Escort, 3 Follow, 4 Activate
+            ///< @see enum TypeId
 
             virtual unsigned int getPriority() const {return 0;}
             ///< higher number is higher priority (0 beeing the lowest)

apps/openmw/mwmechanics/aisequence.cpp

@@ -56,6 +56,21 @@ int MWMechanics::AiSequence::getTypeId() const
     return mPackages.front()->getTypeId();
 }
 
+bool MWMechanics::AiSequence::getCombatTarget(std::string &targetActorId) const
+{
+    if (getTypeId() != AiPackage::TypeIdCombat)
+        return false;
+    const AiCombat *combat = static_cast<const AiCombat *>(mPackages.front());
+    targetActorId = combat->getTargetId();
+    return true;
+}
+
+void MWMechanics::AiSequence::stopCombat()
+{
+    while (getTypeId() == AiPackage::TypeIdCombat)
+        mPackages.erase (mPackages.begin());
+}
+
 bool MWMechanics::AiSequence::isPackageDone() const
 {
     return mDone;
@@ -114,7 +129,7 @@ void MWMechanics::AiSequence::fill(const ESM::AIPackageList &list)
             std::vector<int> idles;
             for (int i=0; i<8; ++i)
                 idles.push_back(data.mIdle[i]);
-            package = new MWMechanics::AiWander(data.mDistance, data.mDuration, data.mTimeOfDay, idles, data.mUnk);
+            package = new MWMechanics::AiWander(data.mDistance, data.mDuration, data.mTimeOfDay, idles, data.mShouldRepeat);
         }
         else if (it->mType == ESM::AI_Escort)
         {

apps/openmw/mwmechanics/aisequence.hpp

@@ -34,7 +34,14 @@ namespace MWMechanics
             virtual ~AiSequence();
 
             int getTypeId() const;
-            ///< -1: None, 0: Wanter, 1 Travel, 2 Escort, 3 Follow, 4 Activate, 5 Combat    
+            ///< @see enum AiPackage::TypeId
+
+            bool getCombatTarget (std::string &targetActorId) const;
+            ///< Return true and assign target if combat package is currently
+            /// active, return false otherwise
+
+            void stopCombat();
+            ///< Removes all combat packages until first non-combat or stack empty.
             
             bool isPackageDone() const;
             ///< Has a package been completed during the last update?

apps/openmw/mwmechanics/aitravel.cpp

@@ -106,7 +106,7 @@ namespace MWMechanics
 
     int AiTravel::getTypeId() const
     {
-        return 1;
+        return TypeIdTravel;
     }
 }
 

apps/openmw/mwmechanics/aiwander.cpp

@@ -254,7 +254,7 @@ namespace MWMechanics
 
     int AiWander::getTypeId() const
     {
-        return 0;
+        return TypeIdWander;
     }
 
     void AiWander::stopWalking(const MWWorld::Ptr& actor)

apps/openmw/mwscript/aiextensions.cpp

@@ -16,6 +16,7 @@
 #include "../mwmechanics/aifollow.hpp"
 #include "../mwmechanics/aitravel.hpp"
 #include "../mwmechanics/aiwander.hpp"
+#include "../mwmechanics/aicombat.hpp"
 
 #include "../mwbase/environment.hpp"
 #include "../mwbase/world.hpp"
@@ -399,6 +400,58 @@ namespace MWScript
                 }
         };
 
+        template<class R>
+        class OpGetTarget : public Interpreter::Opcode0
+        {
+            public:
+                virtual void execute (Interpreter::Runtime &runtime)
+                {
+                    MWWorld::Ptr actor = R()(runtime);
+                    std::string testedTargetId = runtime.getStringLiteral (runtime[0].mInteger);
+                    runtime.pop();
+
+                    const MWMechanics::CreatureStats& creatureStats = MWWorld::Class::get(actor).getCreatureStats(actor);
+                    std::string currentTargetId;
+
+                    bool targetsAreEqual = false;
+                    if (creatureStats.getAiSequence().getCombatTarget (currentTargetId))
+                    {
+                        if (currentTargetId == testedTargetId)
+                            targetsAreEqual = true;
+                    }
+                    runtime.push(int(targetsAreEqual));
+                }
+        };
+
+        template<class R>
+        class OpStartCombat : public Interpreter::Opcode0
+        {
+            public:
+                virtual void execute (Interpreter::Runtime &runtime)
+                {
+                    MWWorld::Ptr actor = R()(runtime);
+                    std::string actorID = runtime.getStringLiteral (runtime[0].mInteger);
+                    runtime.pop();
+
+                    MWMechanics::CreatureStats& creatureStats = MWWorld::Class::get(actor).getCreatureStats(actor);
+                    creatureStats.getAiSequence().stack(MWMechanics::AiCombat(actorID));
+                    if (actorID == "player")
+                        creatureStats.setHostile(true);
+                }
+        };
+
+        template<class R>
+        class OpStopCombat : public Interpreter::Opcode0
+        {
+            public:
+                virtual void execute (Interpreter::Runtime& runtime)
+                {
+                    MWWorld::Ptr actor = R()(runtime);
+                    MWMechanics::CreatureStats& creatureStats = MWWorld::Class::get(actor).getCreatureStats(actor);
+                    creatureStats.getAiSequence().stopCombat();
+                }
+        };
+
         template<class R>
         class OpToggleAI : public Interpreter::Opcode0
         {
@@ -436,6 +489,12 @@ namespace MWScript
             interpreter.installSegment3 (Compiler::Ai::opcodeGetDetectedExplicit, new OpGetDetected<ExplicitRef>);
             interpreter.installSegment5 (Compiler::Ai::opcodeGetLineOfSight, new OpGetLineOfSight<ImplicitRef>);
             interpreter.installSegment5 (Compiler::Ai::opcodeGetLineOfSightExplicit, new OpGetLineOfSight<ExplicitRef>);
+            interpreter.installSegment5 (Compiler::Ai::opcodeGetTarget, new OpGetTarget<ImplicitRef>);
+            interpreter.installSegment5 (Compiler::Ai::opcodeGetTargetExplicit, new OpGetTarget<ExplicitRef>);
+            interpreter.installSegment5 (Compiler::Ai::opcodeStartCombat, new OpStartCombat<ImplicitRef>);
+            interpreter.installSegment5 (Compiler::Ai::opcodeStartCombatExplicit, new OpStartCombat<ExplicitRef>);
+            interpreter.installSegment5 (Compiler::Ai::opcodeStopCombat, new OpStopCombat<ImplicitRef>);
+            interpreter.installSegment5 (Compiler::Ai::opcodeStopCombatExplicit, new OpStopCombat<ExplicitRef>);
             interpreter.installSegment5 (Compiler::Ai::opcodeToggleAI, new OpToggleAI<ImplicitRef>);
             interpreter.installSegment5 (Compiler::Ai::opcodeToggleAIExplicit, new OpToggleAI<ExplicitRef>);
 

components/compiler/extensions0.cpp

@@ -61,12 +61,15 @@ namespace Compiler
             extensions.registerInstruction ("modalarm", "l", opcodeModAlarm, opcodeModAlarmExplicit);
             extensions.registerInstruction ("toggleai", "", opcodeToggleAI, opcodeToggleAI);
             extensions.registerInstruction ("tai", "", opcodeToggleAI, opcodeToggleAI);
+            extensions.registerInstruction("startcombat", "c", opcodeStartCombat, opcodeStartCombatExplicit);
+            extensions.registerInstruction("stopcombat", "", opcodeStopCombat, opcodeStopCombatExplicit);
             extensions.registerFunction ("gethello", 'l', "", opcodeGetHello, opcodeGetHelloExplicit);
             extensions.registerFunction ("getfight", 'l', "", opcodeGetFight, opcodeGetFightExplicit);
             extensions.registerFunction ("getflee", 'l', "", opcodeGetFlee, opcodeGetFleeExplicit);
             extensions.registerFunction ("getalarm", 'l', "", opcodeGetAlarm, opcodeGetAlarmExplicit);
             extensions.registerFunction ("getlineofsight", 'l', "c", opcodeGetLineOfSight, opcodeGetLineOfSightExplicit);
             extensions.registerFunction ("getlos", 'l', "c", opcodeGetLineOfSight, opcodeGetLineOfSightExplicit);
+            extensions.registerFunction("gettarget", 'l', "c", opcodeGetTarget, opcodeGetTargetExplicit);
         }
     }
 

components/compiler/opcodes.hpp

@@ -53,6 +53,12 @@ namespace Compiler
         const int opcodeGetLineOfSightExplicit = 0x2000223;
         const int opcodeToggleAI = 0x2000224;
         const int opcodeToggleAIExplicit = 0x2000225;
+        const int opcodeGetTarget = 0x2000b23;
+        const int opcodeGetTargetExplicit = 0x2000b24;
+        const int opcodeStartCombat = 0x2000b25;
+        const int opcodeStartCombatExplicit = 0x2000b26;
+        const int opcodeStopCombat = 0x2000b27;
+        const int opcodeStopCombatExplicit = 0x2000b28;
     }
 
     namespace Animation

components/esm/aipackage.hpp

@@ -30,7 +30,7 @@ namespace ESM
         short   mDuration;
         unsigned char mTimeOfDay;
         unsigned char mIdle[8];
-        unsigned char mUnk;
+        unsigned char mShouldRepeat;
     };
 
     struct AITravel