# include "config.h"
#endif
+#include <cstring>
+
+#include <simgear/math/SGMath.hxx>
#include <simgear/nasal/nasal.h>
#include <simgear/props/props.hxx>
#include "NasalSys.hxx"
+using namespace std;
+
// Implementation of a Nasal wrapper for the SGPropertyNode class,
// using the Nasal "ghost" (er... Garbage collection Handle for
// OutSide Thingy) facility.
delete prop;
}
-naGhostType PropNodeGhostType = { propNodeGhostDestroy };
+naGhostType PropNodeGhostType = { propNodeGhostDestroy, "prop" };
static naRef propNodeGhostCreate(naContext c, SGPropertyNode* n)
{
static naRef f_getType(naContext c, naRef me, int argc, naRef* args)
{
+ using namespace simgear;
NODEARG();
- char* t = "unknown";
+ const char* t = "unknown";
switch((*node)->getType()) {
- case SGPropertyNode::NONE: t = "NONE"; break;
- case SGPropertyNode::ALIAS: t = "ALIAS"; break;
- case SGPropertyNode::BOOL: t = "BOOL"; break;
- case SGPropertyNode::INT: t = "INT"; break;
- case SGPropertyNode::LONG: t = "LONG"; break;
- case SGPropertyNode::FLOAT: t = "FLOAT"; break;
- case SGPropertyNode::DOUBLE: t = "DOUBLE"; break;
- case SGPropertyNode::STRING: t = "STRING"; break;
- case SGPropertyNode::UNSPECIFIED: t = "UNSPECIFIED"; break;
+ case props::NONE: t = "NONE"; break;
+ case props::ALIAS: t = "ALIAS"; break;
+ case props::BOOL: t = "BOOL"; break;
+ case props::INT: t = "INT"; break;
+ case props::LONG: t = "LONG"; break;
+ case props::FLOAT: t = "FLOAT"; break;
+ case props::DOUBLE: t = "DOUBLE"; break;
+ case props::STRING: t = "STRING"; break;
+ case props::UNSPECIFIED: t = "UNSPECIFIED"; break;
+ case props::VEC3D: t = "VEC3D"; break;
+ case props::VEC4D: t = "VEC4D"; break;
+ case props::EXTENDED: t = "EXTENDED"; break; // shouldn't happen
}
return NASTR(t);
}
+static naRef f_getAttribute(naContext c, naRef me, int argc, naRef* args)
+{
+ NODEARG();
+ if(naVec_size(argv) == 0) return naNum(unsigned((*node)->getAttributes()));
+ naRef val = naVec_get(argv, 0);
+ const char *a = naStr_data(val);
+ SGPropertyNode::Attribute attr;
+ if(!a) a = "";
+ if(!strcmp(a, "last")) return naNum(SGPropertyNode::LAST_USED_ATTRIBUTE);
+ else if(!strcmp(a, "children")) return naNum((*node)->nChildren());
+ else if(!strcmp(a, "listeners")) return naNum((*node)->nListeners());
+ else if(!strcmp(a, "references")) return naNum(node->getNumRefs());
+ else if(!strcmp(a, "tied")) return naNum((*node)->isTied());
+ else if(!strcmp(a, "alias")) return naNum((*node)->isAlias());
+ else if(!strcmp(a, "readable")) attr = SGPropertyNode::READ;
+ else if(!strcmp(a, "writable")) attr = SGPropertyNode::WRITE;
+ else if(!strcmp(a, "archive")) attr = SGPropertyNode::ARCHIVE;
+ else if(!strcmp(a, "trace-read")) attr = SGPropertyNode::TRACE_READ;
+ else if(!strcmp(a, "trace-write")) attr = SGPropertyNode::TRACE_WRITE;
+ else if(!strcmp(a, "userarchive")) attr = SGPropertyNode::USERARCHIVE;
+ else {
+ naRuntimeError(c, "props.getAttribute() with invalid attribute");
+ return naNil();
+ }
+ return naNum((*node)->getAttribute(attr));
+}
+
+static naRef f_setAttribute(naContext c, naRef me, int argc, naRef* args)
+{
+ NODEARG();
+ naRef val = naVec_get(argv, 0);
+ if(naVec_size(argv) == 1 && naIsNum(val)) {
+ naRef ret = naNum((*node)->getAttributes());
+ (*node)->setAttributes((int)val.num);
+ return ret;
+ }
+ SGPropertyNode::Attribute attr;
+ const char *a = naStr_data(val);
+ if(!a) a = "";
+ if(!strcmp(a, "readable")) attr = SGPropertyNode::READ;
+ else if(!strcmp(a, "writable")) attr = SGPropertyNode::WRITE;
+ else if(!strcmp(a, "archive")) attr = SGPropertyNode::ARCHIVE;
+ else if(!strcmp(a, "trace-read")) attr = SGPropertyNode::TRACE_READ;
+ else if(!strcmp(a, "trace-write")) attr = SGPropertyNode::TRACE_WRITE;
+ else if(!strcmp(a, "userarchive")) attr = SGPropertyNode::USERARCHIVE;
+ else {
+ naRuntimeError(c, "props.setAttribute() with invalid attribute");
+ return naNil();
+ }
+ naRef ret = naNum((*node)->getAttribute(attr));
+ (*node)->setAttribute(attr, naTrue(naVec_get(argv, 1)) ? true : false);
+ return ret;
+}
+
static naRef f_getName(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
return naNum((*node)->getIndex());
}
+template<typename T>
+naRef makeVectorFromVec(naContext c, const T& vec)
+{
+ const int num_components
+ = sizeof(vec.data()) / sizeof(typename T::value_type);
+ naRef vector = naNewVector(c);
+ naVec_setsize(vector, num_components);
+ for (int i = 0; i < num_components; ++i)
+ naVec_set(vector, i, naNum(vec[i]));
+ return vector;
+}
+
static naRef f_getValue(naContext c, naRef me, int argc, naRef* args)
{
+ using namespace simgear;
NODEARG();
switch((*node)->getType()) {
- case SGPropertyNode::BOOL: case SGPropertyNode::INT:
- case SGPropertyNode::LONG: case SGPropertyNode::FLOAT:
- case SGPropertyNode::DOUBLE:
- return naNum((*node)->getDoubleValue());
- case SGPropertyNode::STRING:
- case SGPropertyNode::UNSPECIFIED:
+ case props::BOOL: case props::INT:
+ case props::LONG: case props::FLOAT:
+ case props::DOUBLE:
+ {
+ double dv = (*node)->getDoubleValue();
+ if (osg::isNaN(dv)) {
+ SG_LOG(SG_GENERAL, SG_ALERT, "Nasal getValue: property " << (*node)->getPath() << " is NaN");
+ return naNil();
+ }
+
+ return naNum(dv);
+ }
+
+ case props::STRING:
+ case props::UNSPECIFIED:
return NASTR((*node)->getStringValue());
+ case props::VEC3D:
+ return makeVectorFromVec(c, (*node)->getValue<SGVec3d>());
+ case props::VEC4D:
+ return makeVectorFromVec(c, (*node)->getValue<SGVec4d>());
default:
return naNil();
}
}
+template<typename T>
+T makeVecFromVector(naRef vector)
+{
+ T vec;
+ const int num_components
+ = sizeof(vec.data()) / sizeof(typename T::value_type);
+ int size = naVec_size(vector);
+
+ for (int i = 0; i < num_components && i < size; ++i) {
+ naRef element = naVec_get(vector, i);
+ naRef n = naNumValue(element);
+ if (!naIsNil(n))
+ vec[i] = n.num;
+ }
+ return vec;
+}
+
static naRef f_setValue(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
naRef val = naVec_get(argv, 0);
- if(naIsString(val)) (*node)->setStringValue(naStr_data(val));
- else {
+ bool result = false;
+ if(naIsString(val)) {
+ result = (*node)->setStringValue(naStr_data(val));
+ } else if(naIsVector(val)) {
+ if(naVec_size(val) == 3)
+ result = (*node)->setValue(makeVecFromVector<SGVec3d>(val));
+ else if(naVec_size(val) == 4)
+ result = (*node)->setValue(makeVecFromVector<SGVec4d>(val));
+ else
+ naRuntimeError(c, "props.setValue() vector value has wrong size");
+ } else {
naRef n = naNumValue(val);
if(naIsNil(n))
naRuntimeError(c, "props.setValue() with non-number");
- (*node)->setDoubleValue(naNumValue(val).num);
+
+ double d = naNumValue(val).num;
+ if (osg::isNaN(d)) {
+ naRuntimeError(c, "props.setValue() passed a NaN");
+ }
+
+ result = (*node)->setDoubleValue(d);
}
- return naNil();
+ return naNum(result);
}
static naRef f_setIntValue(naContext c, naRef me, int argc, naRef* args)
double tmp2 = tmp1.num;
int iv = (int)tmp2;
- (*node)->setIntValue(iv);
- return naNil();
+ return naNum((*node)->setIntValue(iv));
}
static naRef f_setBoolValue(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
naRef val = naVec_get(argv, 0);
- (*node)->setBoolValue(naTrue(val) ? true : false);
- return naNil();
+ return naNum((*node)->setBoolValue(naTrue(val) ? true : false));
}
static naRef f_setDoubleValue(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
naRef r = naNumValue(naVec_get(argv, 0));
- if(naIsNil(r))
+ if (naIsNil(r))
naRuntimeError(c, "props.setDoubleValue() with non-number");
- (*node)->setDoubleValue(r.num);
- return naNil();
+
+ if (osg::isNaN(r.num)) {
+ naRuntimeError(c, "props.setDoubleValue() passed a NaN");
+ }
+
+ return naNum((*node)->setDoubleValue(r.num));
}
static naRef f_getParent(naContext c, naRef me, int argc, naRef* args)
naRef child = naVec_get(argv, 0);
naRef index = naVec_get(argv, 1);
if(!naIsString(child) || !naIsNum(index)) return naNil();
+ SGPropertyNode_ptr n = 0;
try {
- (*node)->removeChild(naStr_data(child), (int)index.num, false);
+ n = (*node)->removeChild(naStr_data(child), (int)index.num, false);
} catch (const string& err) {
naRuntimeError(c, (char *)err.c_str());
}
- return naNil();
+ return propNodeGhostCreate(c, n);
}
static naRef f_removeChildren(naContext c, naRef me, int argc, naRef* args)
return result;
}
+static naRef f_alias(naContext c, naRef me, int argc, naRef* args)
+{
+ NODEARG();
+ SGPropertyNode* al;
+ naRef prop = naVec_get(argv, 0);
+ try {
+ if(naIsString(prop)) al = globals->get_props()->getNode(naStr_data(prop), true);
+ else if(naIsGhost(prop)) al = *(SGPropertyNode_ptr*)naGhost_ptr(prop);
+ else throw string("props.alias() with bad argument");
+ } catch (const string& err) {
+ naRuntimeError(c, (char *)err.c_str());
+ return naNil();
+ }
+ return naNum((*node)->alias(al));
+}
+
+static naRef f_unalias(naContext c, naRef me, int argc, naRef* args)
+{
+ NODEARG();
+ return naNum((*node)->unalias());
+}
+
+static naRef f_getAliasTarget(naContext c, naRef me, int argc, naRef* args)
+{
+ NODEARG();
+ return propNodeGhostCreate(c, (*node)->getAliasTarget());
+}
+
static naRef f_getNode(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
static struct {
naCFunction func;
- char* name;
+ const char* name;
} propfuncs[] = {
{ f_getType, "_getType" },
+ { f_getAttribute, "_getAttribute" },
+ { f_setAttribute, "_setAttribute" },
{ f_getName, "_getName" },
{ f_getIndex, "_getIndex" },
{ f_getValue, "_getValue" },
{ f_getChildren, "_getChildren" },
{ f_removeChild, "_removeChild" },
{ f_removeChildren, "_removeChildren" },
+ { f_alias, "_alias" },
+ { f_unalias, "_unalias" },
+ { f_getAliasTarget, "_getAliasTarget" },
{ f_getNode, "_getNode" },
{ f_new, "_new" },
{ f_globals, "_globals" },
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