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
  15
  16 --attempt to tell the server to allow us to run
  17 local send_server_movement_state = function(state)
  18         player_movement_state:send_all(state)
  19         --print(state)
  20 end
  21
  22 --receive the server states
  23 minetest.register_on_modchannel_message(function(channel_name, sender, message)
  24         if sender == "" and channel_name == name..":player_movement_state" then
  25                 local message_table = minetest.deserialize(message)
  26
  27                 if message.stop_running then
  28                         running = false
  29                         bunny_hop = false
  30                         run_discharge_timer = 0
  31                         state = message.state
  32                 end
  33         end
  34 end)
  35
  36 --check player's input on the "up" key
  37 minetest.register_globalstep(function(dtime)
  38
  39         if not minetest.localplayer then
  40                 return
  41         end
  42
  43         local input = minetest.localplayer:get_control()
  44         local vel = minetest.localplayer:get_velocity()
  45         local oldvel = minetest.localplayer:get_last_velocity()
  46
  47         --cancel running if the player bumps into something
  48         if running == true and ((vel.x == 0 and oldvel.x ~= 0) or (vel.z == 0 and oldvel.z ~= 0)) then
  49                 running = false
  50                 bunny_hop = false
  51                 run_discharge_timer = 0
  52                 state = 0
  53         end
  54
  55         --reset the run flag
  56         if running == true and (input.up == false or input.sneak == true or input.down == true) then
  57                 running = false
  58                 bunny_hop = false
  59                 state = 0
  60         end
  61
  62
  63         --check if need to tell server to bunnyhop
  64         if running == true and vel.y > 0 and input.jump == true and bunny_hop == false then
  65                 state = 2
  66                 bunny_hop = true
  67         end
  68
  69         --stop bunny hopping
  70         if bunny_hop == true and input.jump == false and running == true and vel.y == 0 then
  71                 bunny_hop = false
  72                 state = 1
  73         end
  74
  75
  76         --half second window to double tap running
  77         if run_discharge_timer > 0 then
  78                 run_discharge_timer = run_discharge_timer - dtime
  79                 if run_discharge_timer <= 0 then
  80                         run_discharge_timer = 0
  81                 end
  82                 --initialize double tap run
  83                 if old_up == false and input.up == true and vel.x ~= 0 and vel.z ~= 0 then
  84                         run_discharge_timer = 0
  85                         running = true
  86                         state = 1
  87                 end
  88         end
  89
  90
  91         --check if new input of walking forwards
  92         if input.up and input.down == false and input.sneak == false and old_up == false and running == false and run_discharge_timer <= 0 then
  93                 run_discharge_timer = 0.2
  94         end
  95
  96         --add this here so the player can sneak
  97         if input.sneak == true then
  98                 run_discharge_timer = 0
  99                 sneak = true
 100                 bunny_hop = false
 101                 running = false
 102         end
 103
 104
 105         --set the sneak state
 106         if sneak == true and old_sneak == false then
 107                 state = 3
 108         elseif input.sneak == false and old_sneak == true then
 109                 sneak = false
 110                 state = 0
 111         end
 112
 113         --only send if state has changed
 114         if state ~= old_state then
 115                 send_server_movement_state(tostring(state))
 116         end
 117
 118         --save old value
 119         old_up = input.up
 120         old_sneak = input.sneak
 121         old_bunny_hop = bunny_hop
 122         old_state = state
 123 end)