void configure(simulator::Simulation& simulation, const config::Configuration& config) override
{
const float px = 0.3;
const auto filepath = config.buildFilePath(config.get("filename"));
// SVG image
NSVGimage* image = nsvgParseFromFile(filepath.string().c_str(), "px", 96);
if (!image)
throw RuntimeException("Cannot parse SVG");
auto obstacle = simulation.buildObject("obstacle.Polygon");
auto& shapes = obstacle->getMutableShapes();
const auto size = Vector<float>(image->width, image->height);
// Coordinate scale
const auto scale = simulation.getWorldSize() / size;
const auto offset = size * 0.5;
// Foreach shapes
for (NSVGshape* shape = image->shapes; shape != nullptr; shape = shape->next)
{
ShapeEdges oShape;
// Foreach paths
for (NSVGpath* path = shape->paths; path != nullptr; path = path->next)
{
storePath([&oShape, &offset, &scale] (Vector<float> vec) {
const auto v = (vec - offset) * scale * Vector<float>(1, -1);
if (oShape.edges.empty() ||
oShape.edges.back().distanceSquared(v).value() > 0.05)
{
oShape.edges.push_back(v);
Log::debug(v.getX(), "; ", v.getY());
}
}, path, px * 1.5);
}
shapes.push_back(std::move(oShape));
}
obstacle->initShapes();
}
void Program::loadConfig(simulator::Simulation& simulation, const config::Configuration& config)
{
if (config.has("filename"))
{
m_source.initFile(config.get("filename"));
}
else
{
m_source.initSource(config.getContent());
}
// Store function pointer
m_call = m_source.getFunction("__call__");
// Fallback
if (!m_call)
m_call = m_source.getFunction("call");
if (!m_call)
throw InvalidArgumentException("Python program doesn't have '__call__' or 'call' function");
}
void Simulation::configure(const config::Configuration& config)
{
// Resize world
{
auto size = config.get<SizeVector>("world-size");
if (size.getWidth() == Zero || size.getHeight() == Zero)
throw config::Exception("Width or height is zero!");
setWorldSize(size);
}
// Time step
setTimeStep(config.get<units::Time>("dt"));
if (config.has("length-coefficient"))
{
m_converter.setLengthCoefficient(config.get<RealType>("length-coefficient"));
}
// Set gravity
setGravity(config.get("gravity", getGravity()));
// Number of iterations
setIterations(config.get("iterations", getIterations()));
// Background color
setBackgroundColor(config.get("background", getBackgroundColor()));
#if CONFIG_RENDER_TEXT_ENABLE
setFontColor(config.get("text-color", getBackgroundColor().inverted()));
#endif
#if CONFIG_RENDER_TEXT_ENABLE
setFontSize(config.get("text-size", getFontSize()));
#endif
#if CONFIG_RENDER_TEXT_ENABLE
setSimulationTimeRender(config.get("show-simulation-time", isSimulationTimeRender()));
#endif
#ifdef CECE_ENABLE_RENDER
setVisualized(config.get("visualized", isVisualized()));
#endif
// Parse plugins
for (auto&& pluginConfig : config.getConfigurations("plugin"))
{
// Returns valid pointer or throws an exception
requirePlugin(pluginConfig.get("name"))->configure(*this, pluginConfig);
}
// Parse parameters
for (auto&& parameterConfig : config.getConfigurations("parameter"))
{
setParameter(parameterConfig.get("name"), units::parse(parameterConfig.get("value")));
}
// Register user types
for (auto&& typeConfig : config.getConfigurations("type"))
{
addObjectType({
typeConfig.get("name"),
typeConfig.get("base"),
typeConfig.toMemory()
});
}
// Parse init
for (auto&& initConfig : config.getConfigurations("init"))
{
const String typeName = initConfig.has("language")
? initConfig.get("language")
: initConfig.get("type");
auto initializer = getPluginContext().createInitializer(typeName);
if (initializer)
{
// Configure initializer
initializer->loadConfig(*this, initConfig);
// Register initializer
addInitializer(std::move(initializer));
}
}
// Parse modules
for (auto&& moduleConfig : config.getConfigurations("module"))
{
// Get name
auto name = moduleConfig.get("name");
if (hasModule(name))
continue;
const String typeName = moduleConfig.has("language")
? moduleConfig.get("language")
: moduleConfig.has("type")
? moduleConfig.get("type")
: name
;
auto module = getPluginContext().createModule(typeName, *this);
if (module)
{
module->loadConfig(*this, moduleConfig);
addModule(std::move(name), std::move(module));
}
}
// Parse programs
for (auto&& programConfig : config.getConfigurations("program"))
{
const String typeName = programConfig.has("language")
? programConfig.get("language")
: programConfig.get("type");
auto program = getPluginContext().createProgram(typeName);
if (program)
{
// Configure program
program->loadConfig(*this, programConfig);
// Register program
addProgram(programConfig.get("name"), std::move(program));
}
}
// Parse objects
for (auto&& objectConfig : config.getConfigurations("object"))
{
// Create object
auto object = buildObject(
objectConfig.get("class"),
objectConfig.get("type", object::Object::Type::Dynamic)
);
if (object)
object->configure(objectConfig, *this);
}
if (config.has("data-out-objects-filename"))
{
m_dataOutObjects = makeUnique<OutFileStream>(config.get("data-out-objects-filename"));
*m_dataOutObjects << "iteration;totalTime;id;typeName;posX;posY;velX;velY\n";
}
}