Score count

level_state.lua

@@ -166,14 +166,21 @@ function begin_contact(a, b, coll)
             if other and other:isinstance(Plane) then
                 plane:receiveDamage(1000)
                 other:receiveDamage(1000)
+                plane:getOwner():addScore(SUICIDE_SCORE)
+                other:getOwner():addScore(SUICIDE_SCORE)
             elseif plane then
                 if other:getOwner() == nil then
                     -- Collision with ground or other plane
                     plane:receiveDamage(1000)
+                    plane:getOwner():addScore(SUICIDE_SCORE)
                 elseif other:getOwner().id ~= plane.id then
                     for key, gun in pairs(GUNS) do
-                        if other:isinstance(gun['projectile']) then
+                        if other:isinstance(gun['projectile']) and plane.health > 0 then
                             plane:receiveDamage(gun['damage'])
+
+                            if plane.health == 0 then
+                                other:getOwner():getOwner():addScore(KILL_SCORE)
+                            end
                         end
                     end
                 end

player.lua

@@ -41,6 +41,10 @@ Player = Class{
         return self.plane
     end;
 
+    addScore = function(self, score)
+        self.score = self.score + score
+    end;
+
     press = function(self, key)
         for action, keycode in pairs(self.keys) do
             if key == keycode then

settings.lua

@@ -36,3 +36,6 @@ SCOREBOARD_MARGIN = 20
 ENGINE_MAX = 1000
 
 INITIAL_PLANE_SPEED = 500
+
+KILL_SCORE = 10
+SUICIDE_SCORE = -2