DIRECTOR: Started work on converting Lingo into compiler

8 files changed, 66 insertions, 19 deletions

diff --git a/engines/director/lingo/lingo-funcs.cpp b/engines/director/lingo/lingo-funcs.cpp
index 6f4b1b22e9..5422b3ca9b 100644
--- a/engines/director/lingo/lingo-funcs.cpp
+++ b/engines/director/lingo/lingo-funcs.cpp
@@ -154,4 +154,22 @@ int Lingo::func_mci(Common::String *s) {
 	return 0;
 }
 
+void Lingo::func_constpush() {
+}
+
+void Lingo::func_add() {
+}
+
+void Lingo::func_sub() {
+}
+
+void Lingo::func_mul() {
+}
+
+void Lingo::func_div() {
+}
+
+void Lingo::func_negate() {
+}
+
 }
diff --git a/engines/director/lingo/lingo-gr.cpp b/engines/director/lingo/lingo-gr.cpp
index 343817c2b1..c34a25f839 100644
--- a/engines/director/lingo/lingo-gr.cpp
+++ b/engines/director/lingo/lingo-gr.cpp
@@ -1374,7 +1374,7 @@ yyreduce:
 
   case 6:
 #line 74 "engines/director/lingo/lingo-gr.y"
-    { (yyval.i) = (yyvsp[(1) - (1)].i); ;}
+    { (yyval.i) = g_lingo->code2(g_lingo->func_constpush, (inst)(yyvsp[(1) - (1)].i)); ;}
     break;
 
   case 7:
@@ -1384,22 +1384,22 @@ yyreduce:
 
   case 8:
 #line 76 "engines/director/lingo/lingo-gr.y"
-    { (yyval.i) = (yyvsp[(1) - (3)].i) + (yyvsp[(3) - (3)].i); ;}
+    { g_lingo->code1(g_lingo->func_add); ;}
     break;
 
   case 9:
 #line 77 "engines/director/lingo/lingo-gr.y"
-    { (yyval.i) = (yyvsp[(1) - (3)].i) - (yyvsp[(3) - (3)].i); ;}
+    { g_lingo->code1(g_lingo->func_sub); ;}
     break;
 
   case 10:
 #line 78 "engines/director/lingo/lingo-gr.y"
-    { (yyval.i) = (yyvsp[(1) - (3)].i) * (yyvsp[(3) - (3)].i); ;}
+    { g_lingo->code1(g_lingo->func_mul); ;}
     break;
 
   case 11:
 #line 79 "engines/director/lingo/lingo-gr.y"
-    { (yyval.i) = (yyvsp[(1) - (3)].i) / (yyvsp[(3) - (3)].i); ;}
+    { g_lingo->code1(g_lingo->func_div); ;}
     break;
 
   case 12:
@@ -1409,7 +1409,7 @@ yyreduce:
 
   case 13:
 #line 81 "engines/director/lingo/lingo-gr.y"
-    { (yyval.i) = -(yyvsp[(2) - (2)].i); ;}
+    { (yyval.i) = (yyvsp[(2) - (2)].i); g_lingo->code1(g_lingo->func_negate); ;}
     break;
 
   case 14:
diff --git a/engines/director/lingo/lingo-gr.y b/engines/director/lingo/lingo-gr.y
index f6968b8b4d..14d80d31fd 100644
--- a/engines/director/lingo/lingo-gr.y
+++ b/engines/director/lingo/lingo-gr.y
@@ -71,14 +71,14 @@ statement: expr { warning("%d", $1); }
 	| func { warning("%d", $1); }
 	;
 
-expr: INT						{ $$ = $1; }
+expr: INT						{ $$ = g_lingo->code2(g_lingo->func_constpush, (inst)$1); }
 	| VAR						{ $$ = vars[*$1]; delete $1; }
-	| expr '+' expr				{ $$ = $1 + $3; }
-	| expr '-' expr				{ $$ = $1 - $3; }
-	| expr '*' expr				{ $$ = $1 * $3; }
-	| expr '/' expr				{ $$ = $1 / $3; }
+	| expr '+' expr				{ g_lingo->code1(g_lingo->func_add); }
+	| expr '-' expr				{ g_lingo->code1(g_lingo->func_sub); }
+	| expr '*' expr				{ g_lingo->code1(g_lingo->func_mul); }
+	| expr '/' expr				{ g_lingo->code1(g_lingo->func_div); }
 	| '+' expr  %prec UNARY		{ $$ =  $2; }
-	| '-' expr  %prec UNARY		{ $$ = -$2; }
+	| '-' expr  %prec UNARY		{ $$ = $2; g_lingo->code1(g_lingo->func_negate); }
 	| '(' expr ')'				{ $$ =  $2; }
 	|
 	;
diff --git a/engines/director/lingo/lingo-lex.cpp b/engines/director/lingo/lingo-lex.cpp
index 534a13cd12..b639d53749 100644
--- a/engines/director/lingo/lingo-lex.cpp
+++ b/engines/director/lingo/lingo-lex.cpp
@@ -1841,7 +1841,7 @@ void yyfree (void * ptr )
 
 namespace Director {
 
-int Lingo::parse(char *code) {
+int Lingo::parse(const char *code) {
 	YY_BUFFER_STATE bp;
 
 	yy_delete_buffer(YY_CURRENT_BUFFER);
diff --git a/engines/director/lingo/lingo-lex.l b/engines/director/lingo/lingo-lex.l
index 6d97d17990..a206f961c6 100644
--- a/engines/director/lingo/lingo-lex.l
+++ b/engines/director/lingo/lingo-lex.l
@@ -61,7 +61,7 @@ to				{ return OP_TO; }
 
 namespace Director {
 
-int Lingo::parse(char *code) {
+int Lingo::parse(const char *code) {
 	YY_BUFFER_STATE bp;
 
 	yy_delete_buffer(YY_CURRENT_BUFFER);
diff --git a/engines/director/lingo/lingo.cpp b/engines/director/lingo/lingo.cpp
index 3d166acba0..e338c3d646 100644
--- a/engines/director/lingo/lingo.cpp
+++ b/engines/director/lingo/lingo.cpp
@@ -71,6 +71,8 @@ Lingo::Lingo(DirectorEngine *vm) : _vm(vm) {
 
 	for (const EventHandlerType *t = &eventHanlerDescs[0]; t->handler != kEventNone; ++t)
 		_eventHandlerTypes[t->handler] = t->name;
+
+	_currentScript = 0;
 }
 
 Lingo::~Lingo() {
@@ -78,6 +80,15 @@ Lingo::~Lingo() {
 
 void Lingo::addCode(Common::String code, ScriptType type, uint16 id) {
 	debug(0, "Add code %s for type %d with id %d", code.c_str(), type, id);
+
+	if (_scripts[type].contains(id)) {
+		free(_scripts[type][id]);
+	}
+
+	_currentScript = new Common::Array<inst>();
+	_scripts[type][id] = _currentScript;
+
+	parse(code.c_str());
 }
 
 void Lingo::processEvent(LEvent event, int entityId) {
@@ -87,5 +98,4 @@ void Lingo::processEvent(LEvent event, int entityId) {
 	debug(0, "processEvent(%s) for %d", _eventHandlerTypes[event], entityId);
 }
 
-
 } // End of namespace Director
diff --git a/engines/director/lingo/lingo.h b/engines/director/lingo/lingo.h
index 9fb024f30c..c819779a31 100644
--- a/engines/director/lingo/lingo.h
+++ b/engines/director/lingo/lingo.h
@@ -70,6 +70,9 @@ enum LEvent {
 	kEventStart
 };
 
+typedef void (*inst)(void);
+#define	STOP (inst)0
+
 class Lingo {
 public:
 	Lingo(DirectorEngine *vm);
@@ -79,13 +82,28 @@ public:
 
 	void processEvent(LEvent event, int entityId);
 
-	int parse(char *code);
+	int parse(const char *code);
+
+	int code1(inst code) { _currentScript->push_back(code); return _currentScript->size(); }
+	int code2(inst code_1, inst code_2) { code1(code_1); return code1(code_2); }
+	int code3(inst code_1, inst code_2, inst code_3) { code1(code_1); code1(code_2); return code1(code_3); }
 
+public:
+	static void func_add();
+	static void func_sub();
+	static void func_mul();
+	static void func_div();
+	static void func_negate();
+	static void func_constpush();
 	int func_mci(Common::String *s);
 
 private:
 	Common::HashMap<uint32, const char *> _eventHandlerTypes;
 	Common::HashMap<Common::String, Audio::AudioStream *> _audioAliases;
+
+	Common::HashMap<int32, Common::Array<inst> *> _scripts[kMaxScriptType];
+	Common::Array<inst> *_currentScript;
+
 	DirectorEngine *_vm;
 };
 
diff --git a/engines/director/score.h b/engines/director/score.h
index ea2402823d..cd4985fc12 100644
--- a/engines/director/score.h
+++ b/engines/director/score.h
@@ -102,9 +102,10 @@ enum InkType {
 };
 
 enum ScriptType {
-    kMovieScript,
-    kSpriteScript,
-    kFrameScript
+    kMovieScript = 0,
+    kSpriteScript = 1,
+    kFrameScript = 2,
+	kMaxScriptType = 2
 };
 
 enum TransitionType {