added addspell and removespell script instructions

apps/openmw/mwscript/docs/vmformat.txt

@@ -129,4 +129,8 @@ op 0x2000143: ModWaterLevel
 op 0x2000144: ToggleWater, twa
 op 0x2000145: ToggleFogOfWar (tfow)
 op 0x2000146: TogglePathgrid
-opcodes 0x2000147-0x3ffffff unused
+op 0x2000147: AddSpell
+op 0x2000148: AddSpell, explicit reference
+op 0x2000149: RemoveSpell
+op 0x200014a: RemoveSpell, explicit reference
+opcodes 0x200014b-0x3ffffff unused

apps/openmw/mwscript/statsextensions.cpp

@@ -280,6 +280,38 @@ namespace MWScript
                 }
         };
 
+        template<class R>
+        class OpAddSpell : public Interpreter::Opcode0
+        {
+            public:
+
+                virtual void execute (Interpreter::Runtime& runtime)
+                {
+                    MWWorld::Ptr ptr = R()(runtime);
+
+                    std::string id = runtime.getStringLiteral (runtime[0].mInteger);
+                    runtime.pop();
+
+                    MWWorld::Class::get (ptr).getCreatureStats (ptr).mSpells.add (id);
+                }
+        };
+
+        template<class R>
+        class OpRemoveSpell : public Interpreter::Opcode0
+        {
+            public:
+
+                virtual void execute (Interpreter::Runtime& runtime)
+                {
+                    MWWorld::Ptr ptr = R()(runtime);
+
+                    std::string id = runtime.getStringLiteral (runtime[0].mInteger);
+                    runtime.pop();
+
+                    MWWorld::Class::get (ptr).getCreatureStats (ptr).mSpells.remove (id);
+                }
+        };
+
         const int numberOfAttributes = 8;
 
         const int opcodeGetAttribute = 0x2000027;
@@ -311,6 +343,11 @@ namespace MWScript
         const int opcodeModSkill = 0x20000fa;
         const int opcodeModSkillExplicit = 0x2000115;
 
+        const int opcodeAddSpell = 0x2000147;
+        const int opcodeAddSpellExplicit = 0x2000148;
+        const int opcodeRemoveSpell = 0x2000149;
+        const int opcodeRemoveSpellExplicit = 0x200014a;
+
         void registerExtensions (Compiler::Extensions& extensions)
         {
             static const char *attributes[numberOfAttributes] =
@@ -381,6 +418,10 @@ namespace MWScript
                 extensions.registerInstruction (mod + skills[i], "l",
                     opcodeModSkill+i, opcodeModSkillExplicit+i);
             }
+
+            extensions.registerInstruction ("addspell", "c", opcodeAddSpell, opcodeAddSpellExplicit);
+            extensions.registerInstruction ("removespell", "c", opcodeRemoveSpell,
+                opcodeRemoveSpellExplicit);
         }
 
         void installOpcodes (Interpreter::Interpreter& interpreter)
@@ -436,6 +477,12 @@ namespace MWScript
                 interpreter.installSegment5 (opcodeModSkill+i, new OpModSkill<ImplicitRef> (i));
                 interpreter.installSegment5 (opcodeModSkillExplicit+i, new OpModSkill<ExplicitRef> (i));
             }
+
+            interpreter.installSegment5 (opcodeAddSpell, new OpAddSpell<ImplicitRef>);
+            interpreter.installSegment5 (opcodeAddSpellExplicit, new OpAddSpell<ExplicitRef>);
+            interpreter.installSegment5 (opcodeRemoveSpell, new OpRemoveSpell<ImplicitRef>);
+            interpreter.installSegment5 (opcodeRemoveSpellExplicit,
+                new OpRemoveSpell<ExplicitRef>);
         }
     }
 }