From 8fb64e8969f093c896ad9b5e327738e82941d30c Mon Sep 17 00:00:00 2001
From: Pacien TRAN-GIRARD
Date: Thu, 12 May 2016 15:04:55 +0200
Subject: Properly handle invulnerability state image

---
 src/ch/epfl/xblast/server/painter/PlayerPainter.java | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/ch/epfl/xblast/server/painter/PlayerPainter.java b/src/ch/epfl/xblast/server/painter/PlayerPainter.java
index a366918..79b954c 100644
--- a/src/ch/epfl/xblast/server/painter/PlayerPainter.java
+++ b/src/ch/epfl/xblast/server/painter/PlayerPainter.java
@@ -16,6 +16,8 @@ public final class PlayerPainter {
     private static final byte DYING_IMAGE_ID = 12;
     private static final byte LAST_DYING_IMAGE_ID = 13;
 
+    private static final int BLANK_PLAYER_GROUP = 4;
+
     private static final int PLAYER_MULTIPLIER = 20;
     private static final int DIRECTION_MULTIPLIER = 3;
 
@@ -52,6 +54,15 @@ public final class PlayerPainter {
         return (byte) (pid.ordinal() * PLAYER_MULTIPLIER);
     }
 
+    /**
+     * Returns the player image byte for the blank player.
+     *
+     * @return the image byte for the player
+     */
+    private static byte byteForPlayerID() {
+        return (byte) (BLANK_PLAYER_GROUP * PLAYER_MULTIPLIER);
+    }
+
     /**
      * Returns the image ID for the dying state according to the number of remaining lives.
      *
@@ -78,6 +89,12 @@ public final class PlayerPainter {
                 return (byte) (byteForPlayerID(player.id())
                         + byteForDyingState(player.lives()));
 
+            case INVULNERABLE:
+                if (tick % 2 == 1)
+                    return (byte) (byteForPlayerID()
+                            + byteForDirection(player.direction())
+                            + byteForFrame(tick));
+
             default:
                 return (byte) (byteForPlayerID(player.id())
                         + byteForDirection(player.direction())
-- 
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