fixed plant cost

src/main/java/pvzclone/model/impl/GameImpl.java

@@ -33,7 +33,6 @@ public final class GameImpl implements Game {
     private static final int DELTA_TIME_FIRST_ZOMBIE = 4000;
 
     // Base plant
-    private static final int PLANT_COST = 20;
     private static final int DAMAGE_BASE_PLANT = 20;
     private static final int LIFE_BASE_PLANT = 100;
     private static final int COOLDOWN_BASE_PLANT = 3000;
@@ -192,9 +191,9 @@ private void createWave() {
 
     @Override
     public boolean createPlant(final Pair<Integer, Integer> position) {
-        if (this.gameState.getSunScore() >= PLANT_COST) {
+        if (this.gameState.getSunScore() >= PlantImpl.PLANT_COST) {
             final PlantImpl newPlant = new PlantImpl(DAMAGE_BASE_PLANT, LIFE_BASE_PLANT, "Plant", position,
-                    COOLDOWN_BASE_PLANT, PLANT_COST);
+                    COOLDOWN_BASE_PLANT);
             plants.add(newPlant);
             this.gameState.decSunScore(newPlant.getPlantCost());
             return true;

src/main/java/pvzclone/model/impl/PlantImpl.java

@@ -8,7 +8,11 @@
 
 public final class PlantImpl implements Plant {
 
-    private final int cost;
+    /**
+     * is the cost of the plant.
+     */
+    public static final int PLANT_COST = 100;
+
     private final double damage;
     private final String entityName;
     private final Pair<Integer, Integer> position;
@@ -24,11 +28,9 @@ public final class PlantImpl implements Plant {
      * @param entityName    is the name of the entity, for the plant is "plant"
      * @param position      is the position of the plant
      * @param cooldown      is the time between two attack of the plant
-     * @param cost          is the Sun cost of the plant
      */
     public PlantImpl(final double damage, final double remainingLife, final String entityName,
-            final Pair<Integer, Integer> position, final long cooldown, final int cost) {
-        this.cost = cost;
+            final Pair<Integer, Integer> position, final long cooldown) {
         this.damage = damage;
         this.remainingLife = remainingLife;
         this.entityName = entityName;
@@ -84,7 +86,7 @@ public long getLastTimeAttack() {
 
     @Override
     public int getPlantCost() {
-        return this.cost;
+        return PlantImpl.PLANT_COST;
     }
 
 }

src/main/java/pvzclone/view/impl/GamePanel.java

@@ -26,6 +26,7 @@
 import pvzclone.model.api.Entities;
 import pvzclone.model.api.Sun;
 import pvzclone.model.impl.Pair;
+import pvzclone.model.impl.PlantImpl;
 
 /**
  * Panel used in the Gameplay Section.
@@ -129,7 +130,7 @@ public GamePanel(final SwingViewImpl parent, final String backgroundSource) {
         plantCardButton.addActionListener(new ActionListener() {
             @Override
             public void actionPerformed(final ActionEvent e) {
-                if (parent.getController().getSunScore() >= 100) {
+                if (parent.getController().getSunScore() >= PlantImpl.PLANT_COST) {
                     userIsPlanting = !userIsPlanting;
                     if (userIsPlanting) {
                         showGrid();

src/test/java/pvzclone/PlantTest.java

@@ -20,9 +20,8 @@ final class PlantTest {
     private static final String NAME = "plant";
     private static final Pair<Integer, Integer> POS = new Pair<>(0, 0);
     private static final long COOLDOWN = 3000;
-    private static final int COST = 100;
 
-    private final Plant plant = new PlantImpl(DAMAGE, LIFE, NAME, POS, COOLDOWN, COST);
+    private final Plant plant = new PlantImpl(DAMAGE, LIFE, NAME, POS, COOLDOWN);
 
     @Test
     void isPlantAliveWithCorrectValues() {
@@ -32,7 +31,6 @@ void isPlantAliveWithCorrectValues() {
         assertEquals(NAME, plant.getEntityName());
         assertEquals(POS, plant.getPosition());
         assertEquals(COOLDOWN, plant.getCooldown());
-        assertEquals(COST, plant.getPlantCost());
     }
 
     @Test