Tweak cod

cod.lua

@@ -3,6 +3,26 @@
 --made for MC like Survival game
 --License for code WTFPL and otherwise stated in readmes
 
+local pi = math.pi
+local atann = math.atan
+local atan = function(x)
+	if not x or x ~= x then
+		return 0
+	else
+		return atann(x)
+	end
+end
+
+local dir_to_pitch = function(dir)
+	local dir2 = vector.normalize(dir)
+	local xz = math.abs(dir.x) + math.abs(dir.z)
+	return -math.atan2(-dir.y, xz)
+end
+
+local function degrees(rad)
+	return rad * 180.0 / math.pi
+end
+
 local S = minetest.get_translator("extra_mobs")
 
 --###################
@@ -56,6 +76,25 @@ local cod = {
     view_range = 16,
     runaway = true,
     fear_height = 4,
+    do_custom = function(self)
+      self.object:set_bone_position("body", vector.new(0,1,0), vector.new(degrees(dir_to_pitch(self.object:get_velocity())) * -1 + 90,0,0))
+      if minetest.get_item_group(self.standing_in, "water") ~= 0 then
+        self.object:add_velocity({ x = 0 , y = math.random(-.05, .05) , z = 0 })
+      end
+      for _,object in pairs(minetest.get_objects_inside_radius(self.object:get_pos(), 10)) do
+  			local lp = object:get_pos()
+  			local s = self.object:get_pos()
+  			local vec = {
+  				x = lp.x - s.x,
+  				y = lp.y - s.y,
+  				z = lp.z - s.z
+  			}
+  			if not object:is_player() and object:get_luaentity().name == "extra_mobs:cod" then
+  				self.state = "runaway"
+  				self.object:set_rotation({x=0,y=(atan(vec.z / vec.x) + 3 * pi / 2) - self.rotate,z=0})
+  			end
+  		end
+    end
 }
 
 mobs:register_mob("extra_mobs:cod", cod)