added a variation of eric.rb

players/davidk.rb

@@ -0,0 +1,33 @@
+module DavidK
+  def to_s
+    "david karapetyan"
+  end
+
+  def move
+  	if stats[:health] >= 90
+    	[:attack, killable_opponent]
+    else
+    	[:rest]
+    end
+  end
+
+  private
+
+  def killable_opponent
+  	all_opponents = Game.world[:players].select{ |p| p != self }
+  	n = 1
+    possible_opponents = all_opponents.select {|o| can_kill_in_n_hits?(o, n) }
+    while possible_opponents.empty?
+    	n += 2
+    	possible_opponents = all_opponents.select {|o| can_kill_in_n_hits?(o, n) }
+    end
+    possible_opponents.first
+  end
+
+  def can_kill_in_n_hits?(player, n)
+  	enemy_stats = player.stats
+  	points = stats[:strength] - (enemy_stats[:defense] / 2)
+  	enemy_stats[:health] <= n * points
+  end
+
+end