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