feat: Create percentage calculator for net worth increase or decrease

danieskj · May 15, 2026 · 39ca987 · 39ca987
1 parent 37229c9
commit 39ca987
Show file tree

Hide file tree

Showing 2 changed files with 16 additions and 1 deletion.
diff --git a/src/main/java/edu/ntnu/idi/idatt/model/player/Player.java b/src/main/java/edu/ntnu/idi/idatt/model/player/Player.java
@@ -89,5 +89,8 @@ public String getStatus() {
 
     return "Novice";
   }
+  public BigDecimal getStartingMoney(){
+    return startingMoney;
+  }
 
 }
diff --git a/src/main/java/edu/ntnu/idi/idatt/view/components/elements/PlayerPortfolioComponent.java b/src/main/java/edu/ntnu/idi/idatt/view/components/elements/PlayerPortfolioComponent.java
@@ -3,11 +3,15 @@
 import edu.ntnu.idi.idatt.model.portfolio.Portfolio;
 import edu.ntnu.idi.idatt.session.UserSession;
 import edu.ntnu.idi.idatt.view.components.ui.UICompositor;
+import edu.ntnu.idi.idatt.view.util.CssUtils;
 import javafx.geometry.Pos;
 import javafx.scene.control.Label;
 import javafx.scene.layout.HBox;
 import javafx.scene.layout.VBox;
 
+import java.math.BigDecimal;
+import java.math.MathContext;
+import java.math.RoundingMode;
 import java.util.ArrayList;
 import java.util.Collections;
 
@@ -16,20 +20,28 @@ public class PlayerPortfolioComponent extends HBox {
   public PlayerPortfolioComponent(Portfolio portfolio) {
     this.setMaxSize(Double.MAX_VALUE, 500);
     this.getStyleClass().add("light");
+    BigDecimal startingMoney = UserSession.getInstance().getPlayer().getStartingMoney();
+    BigDecimal netMoney = UserSession.getInstance().getPlayer().getNetWorth();
+    BigDecimal netPercentage = netMoney.divide(startingMoney)
+            .multiply(new BigDecimal("100"))
+            .setScale(2, RoundingMode.HALF_UP)
+            .subtract(new BigDecimal("100"));
 
     Label userTitle = new Label(String.format("%s's Portfolio", UserSession.getInstance().getPlayer().getName()));
     Label netWorth = new Label();
     netWorth.textProperty().bind(
         UserSession.getInstance().netWorthProperty().asString("Net Worth: %.2f $"));
     Label percentageChange = new Label(
-        "Percentage change: " + UserSession.getInstance().netWorthProperty().get());
+        "Percentage change: " + netPercentage + "%");
     Label playerStatus = new Label("Player status: " + UserSession.getInstance().getPlayer().getStatus());
     Label totalShares = new Label(
         "Total shares owned: " + UserSession.getInstance().getPlayer().getPortfolio().getShares().size());
     ArrayList<Label> labels = new ArrayList<>();
     Collections.addAll(labels, netWorth, percentageChange, playerStatus, totalShares);
     labels.forEach(e -> e.getStyleClass().add("portfolio-box-text"));
     userTitle.getStyleClass().add("portfolio-box-title");
+    String color = CssUtils.generateValueColors(netPercentage);
+    CssUtils.apply(percentageChange, color);
 
     UICompositor playerPortfolioComponent = new UICompositor.Builder()
         .parent(new HBox())