add oneshot eventlauncher (0)

EvLaunch.cpp

@@ -68,7 +68,7 @@ bool TEventLauncher::Load(cParser *parser)
     }
     parser->getTokens();
     *parser >> DeltaTime;
-    if (DeltaTime < 0)
+	if (DeltaTime <= 0)
         DeltaTime = -DeltaTime; // dla ujemnego zmieniamy na dodatni
     else if (DeltaTime > 0)
     { // wartość dodatnia oznacza wyzwalanie o określonej godzinie
@@ -157,7 +157,12 @@ bool TEventLauncher::check_activation() {
 
     auto bCond { false };
 
-    if( DeltaTime > 0 ) {
+	if (DeltaTime == 0.0) {
+		if (UpdatedTime == 0.0)
+			bCond = true;
+		UpdatedTime = 1.0;
+	}
+	else if( DeltaTime > 0 ) {
         if( UpdatedTime > DeltaTime ) {
             UpdatedTime = 0; // naliczanie od nowa
             bCond = true;
@@ -255,7 +260,10 @@ TEventLauncher::export_as_text_( std::ostream &Output ) const {
         Output << "none ";
     }
     // activation interval or hour
-    if( DeltaTime != 0 ) {
+	if (DeltaTime == 0.0) {
+		Output << "0 ";
+	}
+	else if( DeltaTime < 0.0 ) {
         // cyclical launcher
         Output << -DeltaTime << ' ';
     }

simulation.cpp

@@ -190,7 +190,7 @@ void state_manager::process_commands() {
 
 			TAnimModel *model = simulation::State.create_model(data, name, commanddata.location);
 			simulation::State.create_eventlauncher("node -1 0 launcher eventlauncher 0 0 0 " + std::to_string(model->radius())
-			                                       + " none -0.1 obstacle_collision end", name + "_snd", commanddata.location);
+			                                       + " none 0.0 obstacle_collision end", name + "_snd", commanddata.location);
 		}
 
 		if (commanddata.command == user_command::deletemodel) {