player_input.lua

   1 --double tap running
   2
   3 --set up our initial values
   4 local state = 0
   5 local old_state = 0
   6 local running = false
   7 local run_discharge_timer = 0
   8 local old_up = false
   9 local sneak = false
  10 local old_sneak = false
  11 local bunny_hop = false
  12 local old_bunny_hop = false
  13
  14 --attempt to tell the server to allow us to run
  15 local send_server_movement_state = function(state)
  16         player_movement_state:send_all(state)
  17         --print(state)
  18 end
  19
  20 --receive the server states
  21 minetest.register_on_modchannel_message(function(channel_name, sender, message)
  22         if channel_name == "player.player_movement_state" then
  23                 running = message
  24         end
  25 end)
  26
  27 --check player's input on the "up" key
  28 minetest.register_globalstep(function(dtime)
  29
  30         if not minetest.localplayer then
  31                 return
  32         end
  33
  34         local input = minetest.localplayer:get_control()
  35         local vel = minetest.localplayer:get_velocity()
  36         local oldvel = minetest.localplayer:get_last_velocity()
  37
  38         --cancel running if the player bumps into something
  39         if running == true and ((vel.x == 0 and oldvel.x ~= 0) or (vel.z == 0 and oldvel.z ~= 0)) then
  40                 running = false
  41                 bunny_hop = false
  42                 run_discharge_timer = 0
  43                 state = 0
  44         end
  45
  46         --reset the run flag
  47         if running == true and (input.up == false or input.sneak == true or input.down == true) then
  48                 running = false
  49                 bunny_hop = false
  50                 state = 0
  51         end
  52
  53
  54         --check if need to tell server to bunnyhop
  55         if running == true and vel.y > 0 and input.jump == true and bunny_hop == false then
  56                 state = 2
  57                 bunny_hop = true
  58         end
  59
  60         --stop bunny hopping
  61         if bunny_hop == true and input.jump == false and running == true and vel.y == 0 then
  62                 bunny_hop = false
  63                 state = 1
  64         end
  65
  66
  67         --half second window to double tap running
  68         if run_discharge_timer > 0 then
  69                 run_discharge_timer = run_discharge_timer - dtime
  70                 if run_discharge_timer <= 0 then
  71                         run_discharge_timer = 0
  72                 end
  73                 --initialize double tap run
  74                 if old_up == false and input.up == true and vel.x ~= 0 and vel.z ~= 0 then
  75                         run_discharge_timer = 0
  76                         running = true
  77                         state = 1
  78                 end
  79         end
  80
  81
  82         --check if new input of walking forwards
  83         if input.up and input.down == false and input.sneak == false and old_up == false and running == false and run_discharge_timer <= 0 then
  84                 run_discharge_timer = 0.2
  85         end
  86
  87         --add this here so the player can sneak
  88         if input.sneak == true then
  89                 run_discharge_timer = 0
  90                 sneak = true
  91                 bunny_hop = false
  92                 run = false
  93         end
  94
  95
  96         --set the sneak state
  97         if sneak == true and old_sneak == false then
  98                 state = 3
  99         elseif input.sneak == false and old_sneak == true then
 100                 sneak = false
 101                 state = 0
 102         end
 103
 104         --only send if state has changed
 105         if state ~= old_state then
 106                 send_server_movement_state(tostring(state))
 107         end
 108
 109         --save old value
 110         old_up = input.up
 111         old_sneak = input.sneak
 112         old_bunny_hop = bunny_hop
 113         old_state = state
 114 end)