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Generate RNG at start of day, and pass down the stack for cloud generation.

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This commit is contained in:
Stuart Buchanan 2012-12-05 22:12:00 +00:00
parent ed211b043a
commit b7f739ced4
2 changed files with 8 additions and 7 deletions
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11
src/Environment/fgclouds.cxx
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@ -47,6 +47,10 @@ static bool do_delete_3Dcloud (const SGPropertyNode *arg);
static bool do_move_3Dcloud (const SGPropertyNode *arg);
static bool do_add_3Dcloud (const SGPropertyNode *arg);
// RNG seed to ensure cloud synchronization across multi-process
// deployments
static mt seed;
FGClouds::FGClouds() :
#if 0
snd_lightning(0),
@ -55,7 +59,6 @@ FGClouds::FGClouds() :
index(0)
{
update_event = 0;
mt_init_time_10(&seed);
}
FGClouds::~FGClouds()
@ -83,6 +86,8 @@ void FGClouds::Init(void) {
}
#endif
mt_init_time_10(&seed);
globals->get_commands()->addCommand("add-cloud", do_add_3Dcloud);
globals->get_commands()->addCommand("del-cloud", do_delete_3Dcloud);
globals->get_commands()->addCommand("move-cloud", do_move_3Dcloud);
@ -161,7 +166,7 @@ double FGClouds::buildCloud(SGPropertyNode *cloud_def_root, SGPropertyNode *box_
z = h * z + pos[2]; // Up/Down. pos[2] is the cloudbase
//SGVec3f newpos = SGVec3f(x, y, z);
SGNewCloud cld(texture_root, cld_def);
SGNewCloud cld(texture_root, cld_def, &seed);
//layer->addCloud(newpos, cld.genCloud());
layer->addCloud(lon, lat, z, x, y, index++, cld.genCloud());
@ -370,7 +375,7 @@ bool FGClouds::get_3dClouds() const
SGSky* thesky = globals->get_renderer()->getSky();
SGCloudField *layer = thesky->get_cloud_layer(l)->get_layer3D();
SGNewCloud cld(texture_root, arg);
SGNewCloud cld(texture_root, arg, &seed);
bool success = layer->addCloud(lon, lat, alt, x, y, index, cld.genCloud());
// Adding a 3D cloud immediately makes this layer 3D.

4
src/Environment/fgclouds.hxx
View file

@ -52,10 +52,6 @@ private:
bool clouds_3d_enabled;
int index;
// RNG seed to ensure cloud synchronization across multi-process
// deployments
mt seed;
public:
FGClouds();
~FGClouds();