add lantern object and implement light management in player and environment

src/de/miaurizius/jgame2d/core/GamePanel.java

@@ -148,6 +148,7 @@ public class GamePanel extends JPanel implements Runnable {
                     }
                 }
                 for(Entity entity : iTile[currentMap.getIndex()]) if(entity != null) entity.update();
+                eManager.update();
                 break;
             case PAUSE:
                 break;

src/de/miaurizius/jgame2d/core/UI.java

@@ -194,7 +194,11 @@ public class UI {
         for(int i = 0; i < entity.inventory.size(); i++) {
 
             // EQUIP CURSOR
-            if(entity.inventory.get(i) == entity.currentWeapon ||  entity.inventory.get(i) == entity.currentShield) {
+            if(
+                entity.inventory.get(i) == entity.currentWeapon ||
+                entity.inventory.get(i) == entity.currentShield ||
+                entity.inventory.get(i) == entity.currentLight
+            ) {
                 graphics2d.setColor(new Color(240, 190,90));
                 graphics2d.fillRoundRect(slotX, slotY, panel.tileSize, panel.tileSize, 10, 10);
             }

src/de/miaurizius/jgame2d/core/enums/EntityType.java

@@ -10,6 +10,7 @@ public enum EntityType {
     PICKUP,
     PROJECTILE,
     WEAPON,
+    LIGHT,
     SHIELD;
 
     public enum WeaponType {

src/de/miaurizius/jgame2d/core/handlers/AssetSetter.java

@@ -54,6 +54,11 @@ public class AssetSetter {
         panel.obj[Map.OVERWORLD.getIndex()][i].worldX = panel.tileSize*17;
         panel.obj[Map.OVERWORLD.getIndex()][i].worldY = panel.tileSize*21;
         i++;
+
+        panel.obj[Map.OVERWORLD.getIndex()][i] = new LanternObj(panel);
+        panel.obj[Map.OVERWORLD.getIndex()][i].worldX = panel.tileSize*18;
+        panel.obj[Map.OVERWORLD.getIndex()][i].worldY = panel.tileSize*20;
+        i++;
     }
 
     public void setNPC() {

src/de/miaurizius/jgame2d/entity/Entity.java

@@ -70,6 +70,7 @@ public class Entity {
     public int mana;
     public Entity currentWeapon;
     public Entity currentShield;
+    public Entity currentLight;
     public Projectile projectile;
     public ArrayList<Entity> inventory = new ArrayList<>();
     public final int maxInvSize = 20;
@@ -85,6 +86,7 @@ public class Entity {
     public int knockbackVal;
     public boolean stackable;
     public int amt = 1;
+    public float lightRadius;
 
     public Entity(GamePanel panel) {
         this.panel = panel;

src/de/miaurizius/jgame2d/entity/Player.java

@@ -20,6 +20,7 @@ public class Player extends Entity {
 
     // STATE
     public boolean attackCancel;
+    public boolean lightUpdated;
 
     public Player(GamePanel panel, KeyHandler keyH) {
         super(panel);
@@ -289,6 +290,10 @@ public class Player extends Entity {
             currentShield = selectedItem;
             getDefense();
         }
+        if(selectedItem.type == EntityType.LIGHT) {
+            if(currentLight == selectedItem) currentLight = null; else currentLight = selectedItem;
+            lightUpdated = true;
+        }
         if(selectedItem.consumable)
             if(selectedItem.use(this))
                 if(selectedItem.amt > 1) selectedItem.amt--; else inventory.remove(selectedItem);

src/de/miaurizius/jgame2d/entity/item/LanternObj.java

@@ -0,0 +1,19 @@
+package de.miaurizius.jgame2d.entity.item;
+
+import de.miaurizius.jgame2d.core.GamePanel;
+import de.miaurizius.jgame2d.core.enums.EntityType;
+import de.miaurizius.jgame2d.entity.Entity;
+
+public class LanternObj extends Entity {
+
+    public LanternObj(GamePanel panel) {
+        super(panel);
+        type = EntityType.LIGHT;
+        name = "Lantern";
+        down1 = initEntitySprites("objects/lantern");
+        description = "[" + name + "]\nA lantern that lights up\nthe surrounding area.";
+        price = 100;
+        lightRadius = 250;
+    }
+
+}

src/de/miaurizius/jgame2d/environment/EnvironmentManager.java

@@ -13,12 +13,16 @@ public class EnvironmentManager {
         this.panel = panel;
     }
 
-    public void setup() {
-        lighting = new Lighting(panel, 300);
-    }
-
     public void draw(Graphics2D g2) {
         lighting.draw(g2);
     }
 
+    // SETTING THINGS UP
+    public void setup() {
+        lighting = new Lighting(panel);
+    }
+    public void update() {
+        lighting.update();
+    }
+
 }

src/de/miaurizius/jgame2d/environment/Lighting.java

@@ -10,21 +10,37 @@ public class Lighting {
     GamePanel panel;
     BufferedImage darknessFilter;
 
-    public Lighting(GamePanel panel, int circleSize) {
+    public Lighting(GamePanel panel) {
         this.panel = panel;
+        setLightSource();
+    }
+
+    public void draw(Graphics2D g2) {
+        g2.drawImage(darknessFilter, 0, 0, null);
+    }
+    public void update() {
+        if(!panel.player.lightUpdated) return;
+        setLightSource();
+        panel.player.lightUpdated = false;
+    }
+
+    // ...
+    public void setLightSource() {
         darknessFilter = new BufferedImage(panel.screenWidth, panel.screenHeight, BufferedImage.TYPE_INT_ARGB);
         Graphics2D g2 = darknessFilter.createGraphics();
 
         int centerX = panel.player.screenX + panel.tileSize/2;
         int centerY = panel.player.screenY + panel.tileSize/2;
 
-        RadialGradientPaint gPaint = getRadialGradientPaint((float) circleSize, centerX, centerY);
+        RadialGradientPaint gPaint = getRadialGradientPaint(centerX, centerY);
         g2.setPaint(gPaint);
+
         g2.fillRect(0, 0, panel.screenWidth, panel.screenHeight);
         g2.dispose();
     }
 
-    private static RadialGradientPaint getRadialGradientPaint(float circleSize, int centerX, int centerY) {
+    // UTILITY
+    private RadialGradientPaint getRadialGradientPaint(int centerX, int centerY) {
         Color[] color = new Color[] {
                 new Color(0, 0, 0, 0.1f),
                 new Color(0, 0, 0, 0.42f),
@@ -40,15 +56,17 @@ public class Lighting {
                 new Color(0, 0, 0, 0.97f)
         };
 
+        final int lim = 3;
+        if(panel.player.currentLight == null) {
+            for(int i = 0; i < lim; i++) {
+                color[i] = color[lim];
+            }
+        }
+
         float[] fraction = new float[] {
                 0f, 0.4f, 0.5f, 0.6f, 0.65f, 0.7f, 0.75f, 0.8f, 0.85f, 0.9f, 0.95f, 1f
         };
-
+        return new RadialGradientPaint(centerX, centerY, (panel.player.currentLight == null ? 75 : panel.player.currentLight.lightRadius), fraction, color);
-        return new RadialGradientPaint(centerX, centerY, (circleSize /2), fraction, color);
-    }
-
-    public void draw(Graphics2D g2) {
-        g2.drawImage(darknessFilter, 0, 0, null);
     }
 
 }