init.lua

   1 hangglider = {}
   2 hangglider.use = {}
   3
   4 minetest.register_entity("hangglider:airstopper", { --A one-instant entity that catches the player and slows them down.
   5         hp_max = 3,
   6         is_visible = false,
   7         immortal = true,
   8         attach = nil,
   9         on_step = function(self, _)
  10                 if self.object:get_hp() ~= 1 then
  11                         self.object:set_hp(self.object:get_hp() - 1)
  12                 else
  13                         if self.attach then
  14                                 self.attach:set_detach()
  15                         end
  16                         self.object:remove()
  17                 end
  18         end
  19 })
  20
  21 minetest.register_entity("hangglider:glider", {
  22         visual = "mesh",
  23         visual_size = {x = 12, y = 12},
  24         mesh = "glider.obj",
  25         immortal = true,
  26         static_save = false,
  27         textures = {"wool_white.png","default_wood.png"},
  28         on_step = function(self, _)
  29                 local canExist = false
  30                 if self.object:get_attach() then
  31                         local player = self.object:get_attach("parent")
  32                         if player then
  33                                 local pos = player:getpos()
  34                                 if hangglider.use[player:get_player_name()] then
  35                                         if minetest.registered_nodes[minetest.get_node(vector.new(pos.x, pos.y-0.5, pos.z)).name] then
  36                                                 if not minetest.registered_nodes[minetest.get_node(vector.new(pos.x, pos.y-0.5, pos.z)).name].walkable then
  37                                                         canExist = true
  38                                                         if player:get_player_velocity().y > -4.5 and player:get_physics_override().gravity < 0 then
  39                                                                 player:set_physics_override({
  40                                                                         gravity = 0.02,
  41                                                                 })
  42                                                         elseif player:get_player_velocity().y < -5 and player:get_physics_override().gravity > 0 then
  43                                                                 player:set_physics_override({
  44                                                                         gravity = -0.02,
  45                                                                 })
  46                                                         end
  47                                                 end
  48                                         end
  49                                 end
  50                                 if not canExist then
  51                                         player:set_physics_override({
  52                                                 gravity = 1,
  53                                                 jump = 1,
  54                                         })
  55                                         hangglider.use[player:get_player_name()] = false
  56                                 end
  57                         end
  58                 end
  59                 if not canExist then
  60                         self.object:set_detach()
  61                         self.object:remove()
  62                 end
  63         end
  64 })
  65
  66 minetest.register_on_dieplayer(function(player)
  67         player:set_physics_override({
  68                 gravity = 1,
  69                 jump = 1,
  70         })
  71         hangglider.use[player:get_player_name()] = false
  72 end)
  73
  74
  75 minetest.register_on_joinplayer(function(player)
  76         player:set_physics_override({
  77                 gravity = 1,
  78                 jump = 1,
  79         })
  80         hangglider.use[player:get_player_name()] = false
  81 end)
  82
  83 minetest.register_on_leaveplayer(function(player)
  84         hangglider.use[player:get_player_name()] = nil
  85 end)
  86
  87 minetest.register_craftitem("hangglider:hangglider", {
  88         description = "Glider",
  89         inventory_image = "glider_item.png",
  90
  91         on_use = function(itemstack, user, pointed_thing)
  92                 if not user then
  93                         return
  94                 end
  95                 local pos = user:get_pos()
  96                 if minetest.get_node(pos).name == "air" and not hangglider.use[user:get_player_name()] then --Equip
  97                         minetest.sound_play("bedsheet", {pos=pos, max_hear_distance = 8, gain = 1.0})
  98                         user:set_physics_override({
  99                                 gravity = 0.02,
 100                                 jump = 0,
 101                         })
 102                         local stopper = minetest.add_entity(pos, "hangglider:airstopper")
 103                         stopper:get_luaentity().attach = user
 104                         user:set_attach( stopper, "", {x=0,y=0,z=0}, {x=0,y=0,z=0})
 105                         hangglider.use[user:get_player_name()] = true
 106                         minetest.add_entity(user:get_pos(), "hangglider:glider"):set_attach(user, "", {x=0,y=0,z=0}, {x=0,y=0,z=0})
 107
 108                 elseif hangglider.use[user:get_player_name()] then --Unequip
 109                         hangglider.use[user:get_player_name()] = false
 110                 end
 111         end
 112 })
 113
 114 minetest.register_craft({
 115         output = "hangglider:hangglider",
 116         recipe = {
 117                 {"wool:white", "wool:white", "wool:white"},
 118                 {"default:stick", "", "default:stick"},
 119                 {"", "default:stick", ""},
 120         }
 121 })