.. _PhysiCell_java_CancerBiorobots_WorkerCellRule_java:

WorkerCellRule.java
===================

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      white-space: pre-wrap !important;       /* Сохраняет пробелы, но разрешает перенос */
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.. code-block:: console

    import ru.biosoft.physicell.core.Cell;
    import ru.biosoft.physicell.core.CellFunctions.CustomCellRule;
    import ru.biosoft.physicell.core.Model;
    import ru.biosoft.physicell.core.Phenotype;
    import ru.biosoft.physicell.core.SignalBehavior;

    public class WorkerCellRule extends CustomCellRule
    {
        private SignalBehavior signals;

        public WorkerCellRule(Model model)
        {
            signals = model.getSignals();
        }

        public void execute(Cell pCell, Phenotype phenotype, double dt) throws Exception
        {
            // if I am dead, don't bother
            if( signals.getSingleSignal( pCell, "dead" ) > 0.5 )
            {
                // the cell death functions don't automatically turn off custom functions,
                // since those are part of mechanics.

                // Let's just fully disable now.
                pCell.functions.customCellRule = null;
                return;
            }

            // am I searching for cargo? if so, see if I've found it
            if( pCell.state.numberAttachedCells() == 0 )
            {
                boolean attached = false; // want to limit to one attachment
                for( Cell nearbyCell : pCell.cells_in_my_container() )
                {
                    if( nearbyCell == pCell )
                        continue;
                    // if it is expressing the receptor, dock with it
                    if( signals.getSingleSignal( nearbyCell, "custom:receptor" ) > 0.5 && attached == false )
                    {
                        Cell.attachcCells( pCell, nearbyCell );
                        // nearby[i].custom_data["receptor"] = 0.0; // put into cargo cell rule instead?
                        // nearby[i].phenotype.secretion.set_all_secretion_to_zero(); // put into cargo rule instead?
                        attached = true;
                        break;
                    }
                }
            }

            // from prior motility function
            double chemoattractant = signals.getSingleSignal( pCell, "chemoattractant" );
            double detectionThreshold = signals.getSingleSignal( pCell, "custom:motility_shutdown_detection_threshold" );

            // if attached, biased motility towards director chemoattractant
            // otherwise, biased motility towards cargo chemoattractant
            double attachedMigrationBias = signals.getSingleSignal( pCell, "custom:attached_worker_migration_bias" );
            double unattachedMigrationBias = signals.getSingleSignal( pCell, "custom:unattached_worker_migration_bias" );

            if( pCell.state.numberAttachedCells() > 0 )
            {
                signals.setSingleBehavior( pCell, "migration bias", attachedMigrationBias );
                signals.setSingleBehavior( pCell, "chemotactic response to oxygen", -1 );
                signals.setSingleBehavior( pCell, "chemotactic response to chemoattractant", 0 );
            }
            else
            {
                // if there is no detectable signal, shut down motility (permanently)
                if( chemoattractant < detectionThreshold )
                {
                    signals.setSingleBehavior( pCell, "migration speed", 0 );
                }
                signals.setSingleBehavior( pCell, "migration bias", unattachedMigrationBias );
                signals.setSingleBehavior( pCell, "chemotactic response to oxygen", 0 );
                signals.setSingleBehavior( pCell, "chemotactic response to chemoattractant", 1 );
            }
        }
    }