bool XmlWorldPartReader::ReadEdgeShape(
const DOMNode *shapeNode, b2EdgeShape *dest
) {
DOMXPathNSResolver *resolver = doc->createNSResolver(shapeNode);
if (resolver == nullptr) {
return nullptr;
}
DOMXPathResult *result;
YPT::XmlString str;
b2Vec2 vec1, vec2;
result = doc->evaluate(
YPT::XmlString("./vertex1"), shapeNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result == nullptr) {
return false;
}
if (result->getSnapshotLength() == 0) {
// 値が存在しない
result->release();
return false;
}
str = result->getNodeValue()->getTextContent();
result->release();
if (!YPT::ConvertStrToVec2(std::string(str), &vec1)) {
// 値が正しい形式で書かれていない
return false;
}
result = doc->evaluate(
YPT::XmlString("./vertex2"), shapeNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result == nullptr) {
return false;
}
if (result->getSnapshotLength() == 0) {
// 値が存在しない
result->release();
return false;
}
str = result->getNodeValue()->getTextContent();
result->release();
if (!YPT::ConvertStrToVec2(std::string(str), &vec2)) {
// 値が正しい形式で書かれていない
return false;
}
dest->m_vertex1 = vec1;
dest->m_vertex2 = vec2;
return true;
}
bool XmlWorldPartReader::ReadCircleShape(
const DOMNode *shapeNode, b2CircleShape *dest
) {
DOMXPathNSResolver *resolver = doc->createNSResolver(shapeNode);
if (resolver == nullptr) {
return nullptr;
}
DOMXPathResult *result;
YPT::XmlString str;
b2Vec2 center(0.0f, 0.0f);
float32 radius;
result = doc->evaluate(
YPT::XmlString("./center"), shapeNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result != nullptr) {
if (result->getSnapshotLength() >= 1) {
str = result->getNodeValue()->getTextContent();
YPT::ConvertStrToVec2(std::string(str), ¢er);
}
result->release();
}
result = doc->evaluate(
YPT::XmlString("./radius"), shapeNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result == nullptr) {
return false;
}
if (result->getSnapshotLength() == 0) {
// 値が存在しない
result->release();
return false;
}
str = result->getNodeValue()->getTextContent();
if (!YPT::ConvertStrToFloat(std::string(str), &radius)) {
// 値が正しい形式で書かれていない
return false;
}
result->release();
dest->m_p = center;
dest->m_radius = radius;
return true;
}
bool XmlWorldReader::Read(const std::string &file) {
// ワールドを初期化
try {
initialize();
if (initFlag) {
initializeWorld();
}
} catch (...) {
return false;
}
// TODO: ファイルの有無を確認
// XMLファイルをパース
const XMLCh gLS[] = {chLatin_L, chLatin_S, chNull};
DOMImplementationLS *impl = DOMImplementationRegistry::getDOMImplementation(gLS);
DOMLSParser *parser = impl->createLSParser(
DOMImplementationLS::MODE_SYNCHRONOUS, NULL
);
DOMDocument *doc = parser->parseURI(file.c_str());
if (doc == nullptr) {
return false;
}
// rootノードを取得
DOMElement *worldElement = doc->getDocumentElement();
if (worldElement == nullptr) {
parser->release();
return false;
}
{
YPT::XmlString temp("world");
bool res = XMLString::equals(worldElement->getNodeName(), temp);
if (!res) {
parser->release();
return false;
}
}
// ロード用クラス作成
YPT::XmlWorldPartReader partReader(doc);
// XPathコンテキスト作成
DOMXPathNSResolver *resolver = doc->createNSResolver(worldElement);
if (resolver == nullptr) {
parser->release();
return false;
}
YPT::XmlString str, str2;
DOMXPathResult *result;
// --------------------------------------------------
// ワールド全体の設定
// --------------------------------------------------
// ワールド名
str = worldElement->getAttribute(YPT::XmlString("name"));
if (str != "") {
name = str;
}
// 重力ベクトル
result = doc->evaluate(
YPT::XmlString("./gravity"), worldElement, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result != nullptr) {
if (result->getSnapshotLength() >= 1) {
str = result->getNodeValue()->getTextContent();
b2Vec2 temp;
if (!YPT::ConvertStrToVec2(str.ToChar(), &temp)) {
world.SetGravity(temp);
}
}
result->release();
}
// --------------------------------------------------
// shapes
// --------------------------------------------------
result = doc->evaluate(
YPT::XmlString("./shape"), worldElement, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result != nullptr) {
const XMLSize_t len = result->getSnapshotLength();
for (XMLSize_t i = 0; i < len; ++i) {
result->snapshotItem(i);
DOMNode *node = result->getNodeValue();
if (node == nullptr) {
continue;
}
DOMNamedNodeMap *nodeMap = node->getAttributes();
if (nodeMap == nullptr) {
continue;
}
DOMNode *typeNode = nodeMap->getNamedItem(YPT::XmlString("type"));
if (typeNode == nullptr) {
continue;
}
str = typeNode->getNodeValue();
b2Shape::Type type;
int index;
if (str == "circle") {
type = b2Shape::e_circle;
b2CircleShape temp;
if (partReader.ReadCircleShape(node, &temp)) {
circleShapes.push_back(temp);
index = circleShapes.size()-1;
} else {
// 読み込み失敗
continue;
}
} else if (str == "edge") {
type = b2Shape::e_edge;
b2EdgeShape temp;
if (partReader.ReadEdgeShape(node, &temp)) {
edgeShapes.push_back(temp);
index = edgeShapes.size()-1;
} else {
// 読み込み失敗
continue;
}
} else if (str == "polygon") {
type = b2Shape::e_polygon;
b2PolygonShape temp;
if (partReader.ReadPolygonShape(node, &temp)) {
polygonShapes.push_back(temp);
index = polygonShapes.size()-1;
} else {
// 読み込み失敗
continue;
}
} else if (str == "chain") {
type = b2Shape::e_chain;
b2ChainShape temp;
if (partReader.ReadChainShape(node, &temp)) {
chainShapes.push_back(temp);
index = chainShapes.size()-1;
} else {
// 読み込み失敗
continue;
}
} else {
// 未対応
continue;
}
// nameプロパティがあれば保存
DOMNode *name = nodeMap->getNamedItem(YPT::XmlString("name"));
if (name != nullptr) {
str = name->getNodeValue();
shapes.insert(ShapesMap::value_type(
std::string(str),
std::make_pair(type, index)
));
}
}
result->release();
}
// --------------------------------------------------
// fixtures
// --------------------------------------------------
result = doc->evaluate(
YPT::XmlString("./fixture"), worldElement, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result != nullptr) {
const XMLSize_t len = result->getSnapshotLength();
for (XMLSize_t i = 0; i < len; ++i) {
result->snapshotItem(i);
DOMNode *node = result->getNodeValue();
if (node == nullptr) {
continue;
}
DOMXPathResult *result2 = doc->evaluate(
YPT::XmlString("./shape"), node, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result2 == nullptr) {
continue;
}
DOMNode *shapeNode = result2->getNodeValue();
if (shapeNode == nullptr) {
continue;
}
str = shapeNode->getTextContent();
result2->release();
ShapesMap::iterator found = shapes.find(std::string(str));
if (found == shapes.end()) {
continue;
}
// fixture読み込み
b2FixtureDef fixtureDef;
b2Shape *shape = NULL;
int index = found->second.second;
switch (found->second.first) {
case b2Shape::e_circle:
shape = &circleShapes[index];
break;
case b2Shape::e_edge:
shape = &edgeShapes[index];
break;
case b2Shape::e_polygon:
shape = &polygonShapes[index];
break;
case b2Shape::e_chain:
shape = &chainShapes[index];
break;
default:
// 未対応
break;
}
if (shape == NULL) {
continue;
}
if (partReader.ReadFixture(node, shape, &fixtureDef)) {
// 読み込み成功
// nameプロパティがあれば保存する
DOMNamedNodeMap *nodeMap = node->getAttributes();
if (nodeMap == nullptr) {
continue;
}
DOMNode *nameNode = nodeMap->getNamedItem(YPT::XmlString("name"));
if (nameNode == nullptr) {
continue;
}
str = nameNode->getNodeValue();
fixtures.insert(FixturesMap::value_type(
std::string(str), fixtureDef
));
}
}
result->release();
}
// --------------------------------------------------
// bodies
// --------------------------------------------------
result = doc->evaluate(
YPT::XmlString("./body"), worldElement, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result != nullptr) {
const XMLSize_t len = result->getSnapshotLength();
for (XMLSize_t i = 0; i < len; ++i) {
result->snapshotItem(i);
DOMNode *node = result->getNodeValue();
if (node == nullptr) {
continue;
}
DOMXPathResult *result2 = doc->evaluate(
YPT::XmlString("./fixtures/fixture"), node, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result2 == nullptr) {
continue;
}
std::vector< b2FixtureDef *> fixtureDefs;
const XMLSize_t fixturesLen = result2->getSnapshotLength();
for (XMLSize_t j = 0; j < fixturesLen; ++j) {
result2->snapshotItem(j);
DOMNode *fixtureNode = result2->getNodeValue();
if (fixtureNode == nullptr) {
continue;
}
str = fixtureNode->getTextContent();
FixturesMap::iterator found = fixtures.find(
std::string(str)
);
if (found != fixtures.end()) {
fixtureDefs.push_back(&found->second);
}
}
result2->release();
b2Body *body = partReader.ReadBody(world, node, fixtureDefs);
if (body != nullptr) {
// 読み込み成功
// nameプロパティがあれば保存する
DOMNamedNodeMap *nodeMap = node->getAttributes();
if (nodeMap == nullptr) {
continue;
}
DOMNode *nameNode = nodeMap->getNamedItem(YPT::XmlString("name"));
if (nameNode == nullptr) {
continue;
}
str = nameNode->getNodeValue();
bodies.insert(BodiesMap::value_type(
std::string(str), body
));
}
}
result->release();
}
// --------------------------------------------------
// 読み込み完了
// --------------------------------------------------
resolver->release();
parser->release();
return true;
}
bool XmlWorldPartReader::ReadChainShape(
const DOMNode *shapeNode, b2ChainShape *dest
) {
DOMXPathNSResolver *resolver = doc->createNSResolver(shapeNode);
if (resolver == nullptr) {
return nullptr;
}
DOMXPathResult *result;
YPT::XmlString str;
int vertexCount;
b2Vec2 vertices[b2_maxPolygonVertices];
result = doc->evaluate(
YPT::XmlString("./vertexCount"), shapeNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result == nullptr) {
return false;
}
if (result->getSnapshotLength() == 0) {
// 値が存在しない
result->release();
return false;
}
str = result->getNodeValue()->getTextContent();
result->release();
if (!YPT::ConvertStrToInt(std::string(str), &vertexCount)
|| vertexCount <= 0 || vertexCount > b2_maxPolygonVertices
) {
// 値が正しい形式で書かれていない
return false;
}
for (int i = 0; i < vertexCount; ++i) {
std::string iStr = YPT::ConvertIntToStr(i+1);
result = doc->evaluate(
YPT::XmlString((
"./vertices/vertex" + iStr + "|./vertices/v" + iStr
).c_str()), shapeNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result == nullptr) {
return false;
}
const XMLSize_t len = result->getSnapshotLength();
if (len == 0) {
// 値が存在しない
result->release();
return false;
}
str = result->getNodeValue()->getTextContent();
result->release();
if (!YPT::ConvertStrToVec2(std::string(str), &vertices[i])) {
// 値が正しい形式で書かれていない
return false;
}
}
dest->CreateChain(vertices, vertexCount);
return true;
}
b2Body *XmlWorldPartReader::ReadBody(
b2World &world, const DOMNode *bodyNode,
const std::vector< b2FixtureDef *> &fixtureDefs
) {
DOMXPathNSResolver *resolver = doc->createNSResolver(bodyNode);
if (resolver == nullptr) {
return nullptr;
}
b2BodyDef bodyDef;
bodyDef.position.SetZero();
bodyDef.angle = 0.0f;
bodyDef.fixedRotation = false;
bodyDef.type = b2_dynamicBody;
bodyDef.gravityScale = 1.0f;
DOMXPathResult *result;
YPT::XmlString str;
// position
result = doc->evaluate(
YPT::XmlString("./position"), bodyNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result != nullptr) {
if (result->getSnapshotLength() >= 1) {
str = result->getNodeValue()->getTextContent();
YPT::ConvertStrToVec2(std::string(str), &bodyDef.position);
}
result->release();
}
// angle
result = doc->evaluate(
YPT::XmlString("./angle"), bodyNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result != nullptr) {
if (result->getSnapshotLength() >= 1) {
str = result->getNodeValue()->getTextContent();
float temp;
if (YPT::ConvertStrToFloat(std::string(str), &temp)) {
// 度からラジアンへ変換
bodyDef.angle = temp * YPT::PI / 180;
}
}
result->release();
}
// fixedRotation
result = doc->evaluate(
YPT::XmlString("./fixedRotation"), bodyNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result != nullptr) {
if (result->getSnapshotLength() >= 1) {
str = result->getNodeValue()->getTextContent();
YPT::ConvertStrToBool(std::string(str), &bodyDef.fixedRotation);
}
result->release();
}
// type
result = doc->evaluate(
YPT::XmlString("./type"), bodyNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result != nullptr) {
if (result->getSnapshotLength() >= 1) {
str = result->getNodeValue()->getTextContent();
if (str == "dynamic") {
bodyDef.type = b2_dynamicBody;
} else if (str == "static") {
bodyDef.type = b2_staticBody;
} else if (str == "kinematic") {
bodyDef.type = b2_kinematicBody;
} else {
// 未対応
}
}
result->release();
}
// gravityScale
result = doc->evaluate(
YPT::XmlString("./gravityScale"), bodyNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result != nullptr) {
if (result->getSnapshotLength() >= 1) {
str = result->getNodeValue()->getTextContent();
YPT::ConvertStrToFloat(std::string(str), &bodyDef.gravityScale);
}
result->release();
}
b2Body *body = world.CreateBody(&bodyDef);
if (body == NULL) {
return NULL;
}
for (std::vector< b2FixtureDef *>::const_iterator it
= fixtureDefs.begin(); it != fixtureDefs.end(); ++it)
{
if (*it != NULL)
body->CreateFixture(*it);
}
return body;
}
bool XmlWorldPartReader::ReadFixture(const DOMNode *fixtureNode,
b2Shape *shape, b2FixtureDef *dest)
{
DOMXPathNSResolver *resolver = doc->createNSResolver(fixtureNode);
if (resolver == nullptr) {
return nullptr;
}
DOMXPathResult *result;
YPT::XmlString str;
b2FixtureDef fixtureDef;
fixtureDef.friction = 0.5f;
fixtureDef.restitution = 0.5f;
fixtureDef.density = 1.0f;
// shape
fixtureDef.shape = shape;
// friction
result = doc->evaluate(
YPT::XmlString("./friction"), fixtureNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result != nullptr) {
if (result->getSnapshotLength() >= 1) {
str = result->getNodeValue()->getTextContent();
YPT::ConvertStrToFloat(std::string(str), &fixtureDef.friction);
}
result->release();
}
// restitution
result = doc->evaluate(
YPT::XmlString("./restitution"), fixtureNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result != nullptr) {
if (result->getSnapshotLength() >= 1) {
str = result->getNodeValue()->getTextContent();
YPT::ConvertStrToFloat(std::string(str), &fixtureDef.restitution);
}
result->release();
}
// density
result = doc->evaluate(
YPT::XmlString("./density"), fixtureNode, resolver,
DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
NULL
);
if (result != nullptr) {
if (result->getSnapshotLength() >= 1) {
str = result->getNodeValue()->getTextContent();
YPT::ConvertStrToFloat(std::string(str), &fixtureDef.density);
}
result->release();
}
*dest = fixtureDef;
return true;
}