4 * Created on: Aug 26, 2012
8 #include "Interpreter.h"
10 #include "ParsedSource.h"
11 #include "../battle/Hero.h"
12 #include "../battle/Monster.h"
13 #include "../battle/PartyLayout.h"
14 #include "../battle/Resources.h"
15 #include "../common/Ikari.h"
16 #include "../common/Item.h"
17 #include "../common/Spell.h"
18 #include "../common/TargetingMode.h"
19 #include "../graphics/ComplexAnimation.h"
20 #include "../graphics/Font.h"
21 #include "../graphics/Frame.h"
22 #include "../graphics/Gauge.h"
23 #include "../graphics/Menu.h"
24 #include "../graphics/SimpleAnimation.h"
25 #include "../graphics/Sprite.h"
29 #include <SDL_image.h>
32 using battle::Monster;
33 using battle::PartyLayout;
38 using common::TargetingMode;
39 using graphics::Animation;
40 using graphics::Color;
42 using graphics::Frame;
43 using graphics::Gauge;
44 using graphics::ComplexAnimation;
45 using graphics::SimpleAnimation;
46 using graphics::Sprite;
47 using geometry::Vector;
56 Interpreter::~Interpreter() {
57 for (vector<PostponedDefinition>::const_iterator i(postponedDefinitions.begin()), end(postponedDefinitions.end()); i != end; ++i) {
60 for (map<string, SDL_Surface *>::const_iterator i(imageCache.begin()), end(imageCache.end()); i != end; ++i) {
61 SDL_FreeSurface(i->second);
63 // TODO: maybe need to reverse the array deletion check if most objects turn out to be arrays (of char)
64 for (map<int, vector<void *> >::const_iterator i(values.begin()), end(values.end()); i != end; ++i) {
65 for (vector<void *>::const_iterator j(i->second.begin()), end(i->second.end()); j != end; ++j) {
66 delete[] reinterpret_cast<char *>(*j);
72 void *Interpreter::GetObject(int typeId, const std::string &name) {
73 map<string, ParsedDefinition>::const_iterator i(parsedDefinitions.find(name));
74 if (i != parsedDefinitions.end()) {
75 const TypeDescription &requested(TypeDescription::Get(typeId));
76 const TypeDescription &actual(TypeDescription::Get(i->second.type));
77 if (requested.TypeId() == actual.TypeId()) {
78 return values[actual.TypeId()][i->second.id];
79 } else if (actual.IsSubtypeOf(requested)) {
80 char *sub(reinterpret_cast<char *>(values[actual.TypeId()][i->second.id]));
81 std::ptrdiff_t offset(actual.SupertypeOffset(requested));
84 throw Error("cannot cast " + actual.TypeName() + " to " + requested.TypeName());
87 throw Error("access to undefined object " + name);
92 void Interpreter::ReadSource() {
93 for (set<string>::const_iterator i(source.Exports().begin()), end(source.Exports().end()); i != end; ++i) {
94 ReadDefinition(source.GetDefinition(*i));
98 void Interpreter::ReadDefinition(const Definition &dfn) {
99 if (parsedDefinitions.find(dfn.Identifier()) != parsedDefinitions.end()) {
102 if (dfn.HasLiteralValue()) {
109 void Interpreter::ReadLiteral(const Definition &dfn) {
110 const string &typeName(dfn.GetLiteral()->IsArray() ? "Array" : dfn.GetLiteral()->GetTypeName());
111 int typeId(TypeDescription::GetTypeId(typeName));
112 int id(values[typeId].size());
113 const TypeDescription &td(TypeDescription::Get(typeId));
115 (dfn.GetLiteral()->GetType() == Literal::PATH
116 || dfn.GetLiteral()->GetType() == Literal::STRING)
117 ? dfn.GetLiteral()->GetString().size() : td.Size());
118 char *object(new char[size]);
119 if (dfn.GetLiteral()->GetType() == Literal::OBJECT) {
120 ReadObject(typeId, id, object, *dfn.GetLiteral()->GetProperties());
122 ReadLiteral(typeId, id, object, *dfn.GetLiteral());
124 values[typeId].push_back(object);
125 parsedDefinitions.insert(make_pair(dfn.Identifier(), ParsedDefinition(&dfn, typeId, id)));
128 void Interpreter::ReadLiteral(int typeId, int id, char *object, const Literal &literal) {
129 switch (literal.GetType()) {
130 case Literal::ARRAY_VALUES:
131 throw Error("named value arrays are not supported, sorry");
133 case Literal::ARRAY_PROPS:
134 throw Error("named property list arrays are not supported, sorry");
136 case Literal::BOOLEAN:
137 new (object) bool(literal.GetBoolean());
140 new (object) Color(literal.GetRed(), literal.GetGreen(), literal.GetBlue(), literal.GetAlpha());
142 case Literal::NUMBER:
143 new (object) int(literal.GetNumber());
146 std::memcpy(object, literal.GetString().c_str(), literal.GetString().size());
147 object[literal.GetString().size()] = '\0';
149 case Literal::STRING:
150 std::memcpy(object, literal.GetString().c_str(), literal.GetString().size());
151 object[literal.GetString().size()] = '\0';
153 case Literal::VECTOR:
154 new (object) Vector<int>(literal.GetX(), literal.GetY());
156 case Literal::OBJECT:
157 throw Error("illogical branch: read literal object as non-object literal");
163 void *Interpreter::GetObject(int typeId, const Value &v) {
165 if (v.GetLiteral().IsObject()) {
166 int typeId(TypeDescription::GetTypeId(v.GetLiteral().GetTypeName()));
167 const TypeDescription &td(TypeDescription::Get(typeId));
168 char *object(new char[td.Size()]);
169 td.Construct(object);
170 int id(values[typeId].size());
171 values[typeId].push_back(object);
172 ReadObject(typeId, id, object, *v.GetLiteral().GetProperties());
175 int typeId(0), id(0);
176 switch (v.GetLiteral().GetType()) {
177 case Literal::ARRAY_VALUES:
178 throw Error("cannot copy value arrays, sorry");
180 case Literal::ARRAY_PROPS:
181 throw Error("cannot copy property list arrays, sorry");
183 case Literal::BOOLEAN:
185 typeId = TypeDescription::GetTypeId("Boolean");
186 id = values[typeId].size();
187 const TypeDescription &td(TypeDescription::Get(typeId));
188 char *object(new char[td.Size()]);
189 values[typeId].push_back(new (object) bool(v.GetLiteral().GetBoolean()));
194 typeId = TypeDescription::GetTypeId("Color");
195 id = values[typeId].size();
196 const TypeDescription &td(TypeDescription::Get(typeId));
197 char *object(new char[td.Size()]);
198 values[typeId].push_back(new (object) Color(v.GetLiteral().GetRed(), v.GetLiteral().GetGreen(), v.GetLiteral().GetBlue(), v.GetLiteral().GetAlpha()));
201 case Literal::NUMBER:
203 typeId = TypeDescription::GetTypeId("Number");
204 id = values[typeId].size();
205 const TypeDescription &td(TypeDescription::Get(typeId));
206 char *object(new char[td.Size()]);
207 values[typeId].push_back(new (object) int(v.GetLiteral().GetNumber()));
212 typeId = TypeDescription::GetTypeId("Path");
213 id = values[typeId].size();
214 char *str(new char[v.GetLiteral().GetString().size() + 1]);
215 std::memcpy(str, v.GetLiteral().GetString().c_str(), v.GetLiteral().GetString().size());
216 str[v.GetLiteral().GetString().size()] = '\0';
217 values[typeId].push_back(str);
220 case Literal::STRING:
222 typeId = TypeDescription::GetTypeId("String");
223 id = values[typeId].size();
224 char *str(new char[v.GetLiteral().GetString().size() + 1]);
225 std::memcpy(str, v.GetLiteral().GetString().c_str(), v.GetLiteral().GetString().size());
226 str[v.GetLiteral().GetString().size()] = '\0';
227 values[typeId].push_back(str);
230 case Literal::VECTOR:
232 typeId = TypeDescription::GetTypeId("Vector");
233 id = values[typeId].size();
234 const TypeDescription &td(TypeDescription::Get(typeId));
235 char *object(new char[td.Size()]);
236 values[typeId].push_back(new (object) Vector<int>(v.GetLiteral().GetX(), v.GetLiteral().GetY()));
239 case Literal::OBJECT:
241 typeId = TypeDescription::GetTypeId(v.GetLiteral().GetTypeName());
242 const TypeDescription &td(TypeDescription::Get(typeId));
243 id = values[typeId].size();
244 char *object(new char[td.Size()]);
245 td.Construct(object);
246 ReadObject(typeId, id, object, *v.GetLiteral().GetProperties());
250 return values[typeId][id];
253 ReadDefinition(source.GetDefinition(v.GetIdentifier()));
254 return GetObject(typeId, v.GetIdentifier());
259 void Interpreter::ReadObject(const Definition &dfn) {
260 int typeId(TypeDescription::GetTypeId(dfn.TypeName()));
261 const TypeDescription &td(TypeDescription::Get(typeId));
262 int id(values[typeId].size());
263 char *object(new char[td.Size()]);
264 td.Construct(object);
265 values[typeId].push_back(object);
266 ReadObject(typeId, id, object, *dfn.GetProperties());
267 parsedDefinitions.insert(make_pair(dfn.Identifier(), ParsedDefinition(&dfn, typeId, id)));
271 void Interpreter::ReadObject(int typeId, int id, char *object, const PropertyList &props) {
272 const TypeDescription &td(TypeDescription::Get(typeId));
273 for (PropertyList::ConstIterator i(props.Begin()), end(props.End()); i != end; ++i) {
274 const FieldDescription &fd(td.GetField(i->first));
275 const TypeDescription &fieldType(TypeDescription::Get(fd.TypeId()));
276 if (CanLink(*i->second)) {
277 char *dest(object + fd.Offset());
278 if (fd.IsAggregate()) {
279 int arraySize(i->second->GetLiteral().ArraySize());
280 char *aggregate(new char[fieldType.Size() * arraySize]);
281 char *iter(aggregate);
282 if (i->second->GetLiteral().GetType() == Literal::ARRAY_PROPS) {
283 const vector<PropertyList *> &list(i->second->GetLiteral().GetPropertyLists());
284 for (vector<PropertyList *>::const_iterator j(list.begin()), end(list.end()); j != end; ++j, iter += fieldType.Size()) {
285 fieldType.Construct(iter);
286 ReadObject(fieldType.TypeId(), -1, iter, **j);
289 const vector<Value *> &list(i->second->GetLiteral().GetValues());
290 for (vector<Value *>::const_iterator j(list.begin()), end(list.end()); j != end; ++j, iter += fieldType.Size()) {
291 fieldType.Construct(iter);
292 ReadLiteral(fieldType.TypeId(), -1, iter, (*j)->GetLiteral());
295 if (fd.IsReferenced()) {
296 std::memcpy(dest, &aggregate, sizeof(char *));
297 dest += sizeof(char *);
298 std::memcpy(dest, &arraySize, sizeof(int));
300 throw Error("aggregate type fields must be referenced");
303 char *src(reinterpret_cast<char *>(GetObject(fd.TypeId(), *i->second)));
304 if (fd.IsReferenced()) {
305 std::memcpy(dest, &src, sizeof(char *));
307 std::memcpy(dest, src, fieldType.Size());
311 Postpone(typeId, id, fd.Offset(), i->second->GetIdentifier(), fd.TypeId());
317 bool Interpreter::CanLink(const Value &v) const {
318 return v.IsLiteral() || source.IsDefined(v.GetIdentifier());
321 void Interpreter::Postpone(int type, int id, std::ptrdiff_t offset, const std::string &identifier, int linkedType) {
322 char *str(new char[identifier.size() + 1]);
323 std::memcpy(str, identifier.c_str(), identifier.size());
324 str[identifier.size()] = '\0';
325 postponedDefinitions.push_back(PostponedDefinition(type, id, offset, str, linkedType));
329 void Interpreter::CreateTypeDescriptions() {
331 TypeDescription &td(TypeDescription::CreateOrGet("Boolean"));
332 td.SetSize(sizeof(bool));
335 TypeDescription &td(TypeDescription::CreateOrGet("Color"));
336 td.SetSize(sizeof(Color));
339 TypeDescription &td(TypeDescription::CreateOrGet("Image"));
340 td.SetSize(sizeof(SDL_Surface));
343 TypeDescription &td(TypeDescription::CreateOrGet("Number"));
344 td.SetSize(sizeof(int));
347 int stringId(TypeDescription::GetTypeId("String"));
348 TypeDescription &td(TypeDescription::CreateOrGet("Path"));
350 td.AddSupertype(stringId, 0);
353 TypeDescription &td(TypeDescription::CreateOrGet("String"));
357 TypeDescription &td(TypeDescription::CreateOrGet("Vector"));
358 td.SetSize(sizeof(Vector<int>));