package gis2.scenario;

import javax.swing.undo.AbstractUndoableEdit;

import maps.gml.GMLShape;

/**
   Tool for placing civilians.
*/
public class PlaceCivilianTool extends ShapeTool {
    /**
       Construct a PlaceCivilianTool.
       @param editor The editor instance.
    */
    public PlaceCivilianTool(ScenarioEditor editor) {
        super(editor);
    }

    @Override
    public String getName() {
        return "Place civilian";
    }

    @Override
    protected boolean shouldHighlight(GMLShape shape) {
        return true;
    }

    @Override
    protected void processClick(GMLShape shape) {
        editor.getScenario().addCivilian(shape.getID());
        editor.setChanged();
        editor.updateOverlays();
        editor.addEdit(new AddCivilianEdit(shape.getID()));
    }

    private class AddCivilianEdit extends AbstractUndoableEdit {
        private int id;

        public AddCivilianEdit(int id) {
            this.id = id;
        }

        @Override
        public void undo() {
            super.undo();
            editor.getScenario().removeCivilian(id);
            editor.updateOverlays();
        }

        @Override
        public void redo() {
            super.redo();
            editor.getScenario().addCivilian(id);
            editor.updateOverlays();
        }
    }
}