mods/jetpack/init.lua

   1 local minetest,math = minetest,math
   2
   3 minetest.register_tool("jetpack:jetpack",{
   4     description = "Jetpack",
   5
   6     groups = {chestplate = 1,},
   7     inventory_image = "jetpack_item.png",
   8     stack_max = 1,
   9     wearing_texture = "jetpack.png",
  10     tool_capabilities = {
  11         full_punch_interval = 0,
  12         max_drop_level = 0,
  13         groupcaps = {
  14         },
  15         damage_groups = {
  16
  17         },
  18         punch_attack_uses = 0,
  19     }
  20 })
  21
  22 local sound_handling_loop = {}
  23
  24 minetest.register_globalstep(function(dtime)
  25     for _,player in ipairs(minetest.get_connected_players()) do
  26         local player_name = player:get_player_name()
  27         if player:get_hp() > 0 then
  28             if player:get_player_control().jump or player:get_player_control().sneak then
  29                 local inv = player:get_inventory()
  30                 local stack = inv:get_stack("armor_torso",1)
  31                 local name = stack:get_name()
  32                 if name ~= "" and name == "jetpack:jetpack" then
  33                     --boost
  34                     if player:get_player_control().jump and player:get_player_velocity().y < 20 then
  35                         player:add_player_velocity(vector.new(0,1,0))
  36                         player:set_physics_override({gravity=1.25})
  37                     --hover
  38                     elseif player:get_player_control().sneak then
  39                         local currentvel = player:get_player_velocity()
  40                         local goal = 0
  41                                     local acceleration = vector.new(0,goal-currentvel.y,0)
  42                                     acceleration = vector.multiply(acceleration, 0.05)
  43                         player:add_player_velocity(acceleration)
  44                         player:set_physics_override({gravity=0})
  45                     end
  46
  47                     local particle_pos = player:get_pos()
  48                     local yaw = player:get_look_horizontal()
  49                     local p_dir = vector.divide(minetest.yaw_to_dir(yaw + math.pi),8)
  50                     particle_pos.y = particle_pos.y + 0.7
  51                     particle_pos = vector.add(particle_pos,p_dir)
  52
  53
  54                     minetest.add_particle({
  55                                                 pos = particle_pos,
  56                                                 velocity = {x=0, y=-20+player:get_player_velocity().y , z=0},
  57                                                 acceleration = {x=math.random(-1,1), y=0, z=math.random(-1,1)},
  58                                                 expirationtime = 1+math.random(),
  59                                                 size = 1+math.random(),
  60                                                 texture = "smoke.png",
  61                                         })
  62                     stack:add_wear(5)
  63                     inv:set_stack("armor_torso", 1, stack)
  64
  65                     if not sound_handling_loop[player_name] then
  66                         sound_handling_loop[player_name] = minetest.sound_play("jetpack", {object = player,loop=true,gain=0.3})
  67                     end
  68
  69                     if inv:get_stack("armor_torso",1):get_name() == "" then
  70                         recalculate_armor(player)
  71                         set_armor_gui(player)
  72                         player:set_physics_override({gravity=1.25})
  73                         if sound_handling_loop[player_name] then
  74                             --minetest.sound_play("armor_break",{to_player=player:get_player_name(),gain=1,pitch=math.random(80,100)/100})
  75                             --minetest.sound_stop(sound_handling_loop[player_name])
  76                             minetest.sound_fade(sound_handling_loop[player_name], -1, 0)
  77                             sound_handling_loop[player_name] = nil
  78                         end
  79                     end
  80                 end
  81             elseif sound_handling_loop[player_name] then
  82                 player:set_physics_override({gravity=1.25})
  83                 minetest.sound_stop(sound_handling_loop[player_name])
  84                 sound_handling_loop[player_name] = nil
  85             end
  86         end
  87     end
  88 end)
  89
  90 minetest.register_craft({
  91     output = "jetpack:jetpack",
  92     recipe = {
  93         {"main:iron"           , "main:gold"    , "main:iron"          },
  94         {"main:iron"           , "main:diamond" , "main:iron"          },
  95         {"redstone:piston_off" , "redstone:dust", "redstone:piston_off"}
  96     }
  97 })