Fixed FPS issues and beautified sparkline display

- set upper and lower bounds for axis height
- formatted Y axis to show/hide necessary info
- reduced some looped actions
- added conditions for the first leg
- all boats start in 'last' place

#story[876]

visualiser/src/main/java/seng302/Controllers/RaceController.java

@@ -7,18 +7,14 @@ import javafx.scene.chart.LineChart;
 import javafx.scene.chart.NumberAxis;
 import javafx.scene.chart.XYChart;
 import javafx.scene.control.*;
-import javafx.scene.control.Button;
-import javafx.scene.control.Label;
 import javafx.scene.layout.GridPane;
 import javafx.scene.paint.Color;
 import seng302.Mock.StreamedRace;
 import seng302.Model.*;
 import seng302.VisualiserInput;
 
-
 import java.net.URL;
 import java.util.*;
-import java.util.List;
 
 /**
  * Created by fwy13 on 15/03/2017.
@@ -88,7 +84,6 @@ public class RaceController extends Controller {
 
     @Override
     public void initialize(URL location, ResourceBundle resources) {
-        //createSparkLine();
         //listener for fps
         startBoats = new ArrayList<>();
         showFPS.selectedProperty().addListener((ov, old_val, new_val) -> {
@@ -101,39 +96,51 @@ public class RaceController extends Controller {
     }
 
     public void createSparkLine(ObservableList<Boat> boats){
-        // TODO replace for loop with boatsInRace
-        //int [] boats = {1, 2, 3, 4, 5, 6};
-        // set a line for each boat
+        // NOTE: Y axis is in negatives to display correct positions
+
         makeColours();
         startBoats.addAll(boats);
         mapBoatColours();
+
+        // all boats start in 'last' place
         for (int i=0; i<startBoats.size(); i++){
-            Float startPos = ((float)startBoats.size()+1)/2;
             XYChart.Series<Number, Number> series = new XYChart.Series();
-            series.getData().add(new XYChart.Data(0, i + 1));
+            series.getData().add(new XYChart.Data(0, -startBoats.size()));
+            series.getData().add(new XYChart.Data(0, -startBoats.size()));
             sparklineChart.getData().add(series);
+            sparklineChart.getData().get(i).getNode().setStyle("-fx-stroke: " +
+                    ""+boatColours.get(startBoats.get(i).getSourceID())+";");
         }
 
-        // reverse Y axis order (0 at top) and set axis height/width
-        // TODO change lower bound to boatsInRace + 1
-        yAxis.setLowerBound(startBoats.size()+1);
-        yAxis.setUpperBound(0);
-        yAxis.setAutoRanging(false);
-        xAxis.setAutoRanging(false);
-
         sparklineChart.setCreateSymbols(false);
 
-        // hide axis ticks and labels
-        sparklineChart.getXAxis().setTickLabelsVisible(false);
-        sparklineChart.getYAxis().setTickLabelsVisible(false);
-        sparklineChart.getXAxis().setTickMarkVisible(false);
-        sparklineChart.getYAxis().setTickMarkVisible(false);
-        sparklineChart.getXAxis().
-                lookup(".axis-minor-tick-mark").setVisible(false);
-        sparklineChart.getYAxis().
-                lookup(".axis-minor-tick-mark").setVisible(false);
-
-        updateSparkline(boats);
+        // set x axis details
+        xAxis.setAutoRanging(false);
+        xAxis.setTickMarkVisible(false);
+        xAxis.setTickLabelsVisible(false);
+        xAxis.setMinorTickVisible(false);
+
+        // set y axis details
+        yAxis.setLowerBound(-(startBoats.size()+1));
+        yAxis.setUpperBound(0);
+        yAxis.setAutoRanging(false);
+        yAxis.setLabel("Position in Race");
+        yAxis.setTickUnit(1);
+        yAxis.setTickMarkVisible(false);
+        yAxis.setMinorTickVisible(false);
+        // hide minus number from displaying on axis
+        yAxis.setTickLabelFormatter(new NumberAxis.DefaultFormatter(yAxis) {
+            @Override
+            public String toString(Number value) {
+                if ((Double)value == 0.0
+                        || (Double)value < -startBoats.size()){
+                    return "";
+                }
+                else {
+                    return String.format("%7.0f", -value.doubleValue());
+                }
+            }
+        });
     }
 
     /**
@@ -215,24 +222,44 @@ public class RaceController extends Controller {
     }
 
     public void updateSparkline(ObservableList<Boat> boatsInRace){
-        System.out.println(sparklineChart.getData().size());
-        // TODO replace for loops with correct boats - Done
-        //int [] startingBoats = {1, 2, 3, 4, 5, 6};
-        //int [] boatsInRace = {1, 2, 3, 4, 5, 6};
         int placingVal = boatsInRace.size();
-        //System.out.println(boatsInRace.get(0).toString());
         sparkLineNumber++;
+
         for (int i = boatsInRace.size() - 1; i >= 0; i--){
             for (int j = startBoats.size() - 1; j >= 0; j--){
                 if (boatsInRace.get(i)==startBoats.get(j)){
+
+                    // when a boat is on its first leg
+                    if (boatsInRace.get(i).getCurrentLeg().getLegNumber()==0){
+                        // adjust boats latest point on X axis
+                        sparklineChart.getData().get(j).getData().get(1)
+                                .setXValue(sparkLineNumber);
+                    }
+
+                    // when a boat first enters its second leg
+                    else if (boatsInRace.get(i).getCurrentLeg().getLegNumber
+                            ()==1 && sparklineChart.getData().get(j).getData
+                            ().size()==2){
+                        // adjust boats position from start mark
+                        sparklineChart.getData().get(j).getData().get(1)
+                                .setYValue(-placingVal);
+                        sparklineChart.getData().get(j).getData().get(1)
+                                .setXValue(sparkLineNumber);
                         sparklineChart.getData().get(j).getData().add(new XYChart.Data<>
-                            (sparkLineNumber, placingVal));
-                    sparklineChart.getData().get(j).getNode().setStyle("-fx-stroke: "+boatColours.get(boatsInRace.get(i).getSourceID())+";");
+                                (sparkLineNumber, -placingVal));
+                    }
+
+                    // plot new point for boats current position
+                    else {
+                        sparklineChart.getData().get(j).getData().add
+                                (new XYChart.Data<>(sparkLineNumber, -placingVal));
+                    }
                     placingVal-=1;
                 }
             }
         }
         xAxis.setUpperBound(sparkLineNumber);
+        xAxis.setTickUnit(sparkLineNumber);
     }
 
     private void makeColours() {