feat: item purchase functionality

2 files changed, 95 insertions, 10 deletions

diff --git a/core/src/com/ilotterytea/maxoning/screens/game/shop/ShopUI.java b/core/src/com/ilotterytea/maxoning/screens/game/shop/ShopUI.java
index 2f87bad..a4d6135 100644
--- a/core/src/com/ilotterytea/maxoning/screens/game/shop/ShopUI.java
+++ b/core/src/com/ilotterytea/maxoning/screens/game/shop/ShopUI.java
@@ -27,6 +27,8 @@ public class ShopUI {
     private final MaxonSavegame savegame;
     private Label pointsLabel, multiplierLabel;
 
+    private final ArrayList<PurchaseItem> purchaseItems = new ArrayList<>();
+
     public ShopUI(final MaxonSavegame savegame, Stage stage, Skin skin, TextureAtlas atlas) {
         this.savegame = savegame;
 
@@ -168,12 +170,31 @@ public class ShopUI {
         table.setBackground("shop_list");
 
         for (final MaxonItem item : this.items) {
-            int amount = (int) savegame.inv.stream().filter(c -> c == item.id).count();
-
-            double price = item.price * java.lang.Math.pow(1.15f, amount + this.multiplier.getMultiplier());
-            item.price = (float) price;
             PurchaseItem purchaseItem = new PurchaseItem(this.skin, item);
-
+            purchaseItem.addListener(new ClickListener() {
+                @Override
+                public void clicked(InputEvent event, float x, float y) {
+                    super.clicked(event, x, y);
+
+                    if (purchaseItem.isDisabled()) {
+                        return;
+                    }
+
+                    if (mode == ShopMode.BUY) {
+                        savegame.points -= (long) purchaseItem.getPrice();
+                        for (int i = 0; i < multiplier.getMultiplier(); i++) {
+                            savegame.inv.add(purchaseItem.getItem().id);
+                        }
+                    } else {
+                        savegame.points += (long) purchaseItem.getPrice();
+                        for (int i = 0; i < multiplier.getMultiplier(); i++) {
+                            savegame.inv.remove(Integer.valueOf(purchaseItem.getItem().id));
+                        }
+                    }
+                }
+            });
+
+            purchaseItems.add(purchaseItem);
             table.add(purchaseItem).growX().padBottom(5f).row();
         }
 
@@ -188,9 +209,37 @@ public class ShopUI {
         this.table.add(scrollPaneTable).grow().row();
     }
 
+    private void updatePurchaseItems() {
+        for (final PurchaseItem item : this.purchaseItems) {
+            int amount = (int) savegame.inv.stream().filter(c -> c == item.getItem().id).count();
+            double price = item.getItem().price * java.lang.Math.pow(1.15f, amount + multiplier.getMultiplier());
+
+            if (mode == ShopMode.SELL) {
+                price /= 4;
+            }
+
+            item.setPrice(price);
+
+            if (mode == ShopMode.BUY) {
+                if (price > savegame.points || savegame.points - price < 0) {
+                    item.setDisabled(true);
+                } else if (item.isDisabled()) {
+                    item.setDisabled(false);
+                }
+            } else {
+                if (amount - multiplier.getMultiplier() < 0) {
+                    item.setDisabled(true);
+                } else if (item.isDisabled()) {
+                    item.setDisabled(false);
+                }
+            }
+        }
+    }
+
     public void render() {
         this.pointsLabel.setText(String.valueOf(savegame.points));
         this.multiplierLabel.setText(String.format("%s/s", savegame.multiplier));
+        updatePurchaseItems();
     }
 
     public void update() {
diff --git a/core/src/com/ilotterytea/maxoning/ui/PurchaseItem.java b/core/src/com/ilotterytea/maxoning/ui/PurchaseItem.java
index 7f6d44c..fb69d4f 100644
--- a/core/src/com/ilotterytea/maxoning/ui/PurchaseItem.java
+++ b/core/src/com/ilotterytea/maxoning/ui/PurchaseItem.java
@@ -9,6 +9,12 @@ import com.ilotterytea.maxoning.MaxonConstants;
 import com.ilotterytea.maxoning.player.MaxonItem;
 
 public class PurchaseItem extends Table {
+    private double price;
+    private final Label priceLabel;
+    private final MaxonItem item;
+
+    private boolean isDisabled = false;
+
     public PurchaseItem(
             Skin skin,
             MaxonItem item
@@ -19,31 +25,61 @@ public class PurchaseItem extends Table {
 
         super.add(item.icon).size(64f).pad(6f);
 
+        this.price = item.price;
+        this.item = item;
+
         Table summary = new Table();
         summary.align(Align.topLeft);
 
         Label name = new Label(item.name, skin, "item_title");
         name.setAlignment(Align.left);
 
-        Label desc = new Label(String.format("%s SQP (%s/click)", MaxonConstants.DECIMAL_FORMAT.format(item.price), MaxonConstants.DECIMAL_FORMAT.format(item.multiplier)), skin, "item_price");
-        desc.setAlignment(Align.left);
+        this.priceLabel = new Label(String.format("%s SQP (%s/click)", MaxonConstants.DECIMAL_FORMAT.format(price), MaxonConstants.DECIMAL_FORMAT.format(item.multiplier)), skin, "item_price");
+        this.priceLabel.setAlignment(Align.left);
 
         summary.add(name).align(Align.left).row();
-        summary.add(desc).grow();
+        summary.add(this.priceLabel).grow();
 
         super.add(summary).grow();
 
         super.addListener(new ClickListener() {
             @Override
             public void enter(InputEvent event, float x, float y, int pointer, Actor fromActor) {
-                PurchaseItem.super.setBackground("shop_item_hover");
                 super.enter(event, x, y, pointer, fromActor);
+                if (!isDisabled) {
+                    PurchaseItem.super.setBackground("shop_item_hover");
+                }
             }
             @Override
             public void exit(InputEvent event, float x, float y, int pointer, Actor toActor) {
-                PurchaseItem.super.setBackground("shop_item");
                 super.exit(event, x, y, pointer, toActor);
+                if (!isDisabled) {
+                    PurchaseItem.super.setBackground("shop_item");
+                }
             }
         });
     }
+
+    public void setPrice(double price) {
+        this.price = price;
+        this.priceLabel.setText(String.format("%s SQP (%s/click)", MaxonConstants.DECIMAL_FORMAT.format(price), MaxonConstants.DECIMAL_FORMAT.format(item.multiplier)));
+    }
+
+    public double getPrice() {
+        return price;
+    }
+
+    public boolean isDisabled() {
+        return isDisabled;
+    }
+
+    public void setDisabled(boolean disabled) {
+        isDisabled = disabled;
+
+        super.setBackground(isDisabled ? "bg" : "shop_item");
+    }
+
+    public MaxonItem getItem() {
+        return item;
+    }
 }