init.lua

   1 local fnode = minetest.registered_entities["__builtin:falling_node"]
   2 local attacknode = table.copy(fnode)
   3
   4 attacknode.initial_properties.collide_with_objects = false
   5
   6 function attacknode:update_node()
   7         local def = minetest.registered_nodes[self.node.name]
   8         self.description = def and minetest.strip_colors(def.description or ""):split("\n")[1] or self.node.name
   9         self.hp_max = math.floor((def and def._mcl_hardness or 1) * 15)
  10         self.object:set_hp(self.hp_max)
  11         self.object:set_properties{nametag = self.description}
  12 end
  13
  14 function attacknode:set_node(node, meta)
  15         fnode.set_node(self, node, meta)
  16         self:update_node()
  17 end
  18
  19 function attacknode:on_activate(staticdata)
  20         fnode.on_activate(self, staticdata)
  21
  22         self.object:set_armor_groups({fleshy = 100})
  23         self.object:set_acceleration({x = 0, y = 0, z = 0})
  24         self:update_node()
  25 end
  26
  27 function attacknode:on_step(dtime)
  28         self.health = self.object:get_hp()
  29         mcl_bossbars.update_boss(self, self.description, "yellow")
  30         local pos = self.object:get_pos()
  31
  32         if not self.attack_timer then
  33                 self.attack_timer = 0.5
  34         end
  35
  36         if self.attack_timer <= 0 then
  37                 for _, obj in ipairs(minetest.get_objects_inside_radius(pos, 1.0)) do
  38                         if obj:is_player() then
  39                                 self.attack_timer = 0.5
  40                                 mcl_death_messages.player_damage(obj, obj:get_player_name() .. " was slain by " .. self.description .. ".")
  41                                 obj:punch(self.object, 0.5, {full_punch_interval = 0.5, damage_groups = {fleshy = 5}}, vector.direction(pos, obj:get_pos()))
  42                                 break
  43                         end
  44                 end
  45         else
  46                 self.attack_timer = self.attack_timer - dtime
  47         end
  48
  49         if self.target then
  50                 local target_pos = self.target:get_pos()
  51                 if self.target:get_hp() <= 0 or vector.distance(pos, target_pos) > 48 then
  52                         self.target = nil
  53                 else
  54                         self.object:set_velocity(vector.multiply(vector.direction(pos, target_pos), 3))
  55                 end
  56         else
  57                 for _, obj in ipairs(minetest.get_objects_inside_radius(pos, 48)) do
  58                         if obj:is_player() then
  59                                 self.target = obj
  60                                 break
  61                         end
  62                 end
  63         end
  64 end
  65
  66 function attacknode:on_death(killer)
  67         local pos = vector.round(self.object:get_pos())
  68         minetest.set_node(pos, self.node)
  69         minetest.handle_node_drops(pos, minetest.get_node_drops(self.node, killer:get_wielded_item():get_name()), killer)
  70         minetest.remove_node(pos)
  71 end
  72
  73 minetest.register_entity("attacking_nodes:node", attacknode)
  74
  75 minetest.register_on_punchnode(function(pos, node)
  76         minetest.add_entity(pos, "attacking_nodes:node"):get_luaentity():set_node(node, minetest.get_meta(pos))
  77         minetest.after(0.1, minetest.remove_node, pos)
  78 end)