Add random bonus generator

1 files changed, 26 insertions, 0 deletions

diff --git a/src/ch/epfl/xblast/server/GameState.java b/src/ch/epfl/xblast/server/GameState.java
index 0512510..5386311 100644
--- a/src/ch/epfl/xblast/server/GameState.java
+++ b/src/ch/epfl/xblast/server/GameState.java
@@ -22,6 +22,22 @@ public final class GameState {
     private static final List<List<PlayerID>> PLAYER_PRIORITY_ORDERS = GameState.buildPlayerPriorityOrderList();
 
     /**
+     * The list of bonuses to choose randomly from.
+     */
+    private static final Block[] RANDOM_BONUSES = new Block[]{Block.BONUS_BOMB, Block.BONUS_RANGE, Block.FREE};
+
+    /**
+     * The seed used for random value generation.
+     * Constant between executions to make tests reproducible.
+     */
+    private static final int RANDOM_SEED = 2016;
+
+    /**
+     * Pseudo-random source for randomized behaviours.
+     */
+    private static final Random RANDOM_SOURCE = new Random(GameState.RANDOM_SEED);
+
+    /**
      * Builds and returns the player priority order permutations.
      *
      * @return the list of player priority orders
@@ -31,6 +47,16 @@ public final class GameState {
     }
 
     /**
+     * Returns a randomly chosen bonus Block with an equal probability distribution.
+     *
+     * @return a random bonus block
+     */
+    private static Block randomBonus() {
+        int randomIndex = RANDOM_SOURCE.nextInt(GameState.RANDOM_BONUSES.length);
+        return GameState.RANDOM_BONUSES[randomIndex];
+    }
+
+    /**
      * Filters the given list of players and returns the lively ones.
      *
      * @param players a list of players