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flying_saucer
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fix movement 'bouncing' on servers

master
Pilcrow182 2018-11-13 16:38:47 -06:00
parent f35a63d525
commit 4b8a75ca93
2 changed files with 31 additions and 13 deletions
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4
README.md
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@ -18,8 +18,6 @@ version 0.9,
This mod adds a flying saucer vehicle to the Minetest game, using the same basic concept as the [cars mod](https://forum.minetest.net/viewtopic.php?t=13988) by cheapie: it changes the player character's model and movement ability/controls rather than spawning a new entity and attaching the player to it. Theoretically, this means less lag. This mod was originally intended to become a drop-in replacement for the [helicopter mod](https://forum.minetest.net/viewtopic.php?f=11&t=6183) by Pavel_S, but was later changed to a flying saucer. The 3D model was taken from Zeg9's [UFOs mod](https://forum.minetest.net/viewtopic.php?f=11&t=4086), though none of our code or textures are shared, and our controls are nothing alike.
Please report any issues at the [Flying Saucer GitHub page](https://github.com/Pilcrow182/flying_saucer) or the [Release thread on the Minetest forums](https://forum.minetest.net/viewtopic.php?f=9&t=21330).
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### Controls:
@ -40,6 +38,8 @@ Holding shift cuts the player's horizontal movement to 1/3 speed. This is a side
Unlike horizontal movement (which is managed client-side), the vertical movement is dependent on server cycles. This means if there is anything causing excessive lag, it may negatively affect the user's ability to move up/down (or to *stop* moving, regardless of the `flying_saucer_passive_stop` setting).
Please report any other issues at the [Flying Saucer GitHub page](https://github.com/Pilcrow182/flying_saucer) or the [Release thread on the Minetest forums](https://forum.minetest.net/viewtopic.php?f=9&t=21330).
-------------------------------------------------------------------------------
### Credits:

34
init.lua
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@ -20,7 +20,10 @@
flying_saucer = {}
flying_saucer.speed = minetest.settings:get("flying_saucer_speed") or 8
flying_saucer.delay = tonumber(minetest.settings:get("flying_saucer_delay") or 0.2)
minetest.settings:set("flying_saucer_delay", flying_saucer.delay)
flying_saucer.speed = tonumber(minetest.settings:get("flying_saucer_speed") or 8)
minetest.settings:set("flying_saucer_speed", flying_saucer.speed)
flying_saucer.passive_stop = minetest.settings:get_bool("flying_saucer_passive_stop", false)
@ -28,9 +31,12 @@ minetest.settings:set_bool("flying_saucer_passive_stop", flying_saucer.passive_s
flying_saucer.storage = {}
local DEBUG = false
local debug_msg = function(message)
if DEBUG then
minetest.chat_send_all(message)
minetest.log("action", message)
end
end
local activate_flying_saucer = function(player, name)
@ -74,33 +80,45 @@ minetest.register_entity("flying_saucer:stopper_entity", {
local timer = 0
minetest.register_globalstep(function(dtime)
local delay = flying_saucer.delay
timer = timer + dtime
if timer >= 0.2 then
if timer >= delay then
timer = 0
for name,_ in pairs(flying_saucer.storage) do
local player = minetest.get_player_by_name(name)
if player then
local saucer_speed = flying_saucer.speed
local ctrl = player:get_player_control()
local velocity = player:get_player_velocity()
local saucer_speed = tonumber(flying_saucer.speed)
local physics = {speed = saucer_speed/4, jump = 0, gravity = 0, sneak = false, sneak_glitch = false}
if (ctrl.jump or (flying_saucer.storage[name].state == "ascending" and velocity.y ~= 0)) and not (ctrl.sneak or ctrl.aux1) then
if (ctrl.jump or (flying_saucer.storage[name].state == "ascending" and velocity.y > 0 and not flying_saucer.passive_stop)) and not (ctrl.sneak or ctrl.aux1) then
flying_saucer.storage[name].state = "ascending"
physics.gravity = -(saucer_speed-velocity.y)/saucer_speed
physics.gravity = -(math.min(saucer_speed, math.max(0, saucer_speed-velocity.y))/saucer_speed)*(1-math.min(0.7, math.max(0, delay)))
debug_msg("boosting "..name.."'s upward speed by "..physics.gravity)
player:set_physics_override(physics)
elseif (ctrl.sneak or (flying_saucer.storage[name].state == "descending" and velocity.y ~= 0)) and not (ctrl.jump or ctrl.aux1) then
elseif (ctrl.sneak or (flying_saucer.storage[name].state == "descending" and velocity.y < 0 and not flying_saucer.passive_stop)) and not (ctrl.jump or ctrl.aux1) then
flying_saucer.storage[name].state = "descending"
physics.gravity = (saucer_speed+velocity.y)/saucer_speed
physics.gravity = (math.min(saucer_speed, math.max(0, saucer_speed+velocity.y))/saucer_speed)*(1-math.min(0.7, math.max(0, delay)))
debug_msg("boosting "..name.."'s downward speed by "..physics.gravity)
player:set_physics_override(physics)
elseif ((ctrl.aux1 or flying_saucer.passive_stop or velocity.y == 0) and flying_saucer.storage[name].state ~= "idle") or not flying_saucer.storage[name].state then
debug_msg("stopping player "..name)
stopping_player = name
minetest.add_entity(player:get_pos(), "flying_saucer:stopper_entity")
player:set_physics_override(physics)
elseif velocity.y > math.max(saucer_speed, 14) or velocity.y < -math.max(saucer_speed, 14) then
minetest.chat_send_player(name, "Flying Saucer to "..name..": unsafe speeds detected; halting vertical movement.")
stopping_player = name
minetest.add_entity(player:get_pos(), "flying_saucer:stopper_entity")
player:set_physics_override(physics)
end
local state = flying_saucer.storage[name].state or "idle"
-- debug_msg("player '"..name.."' is "..state.." (physics="..minetest.pos_to_string({x=physics.speed, y=physics.jump,z=physics.gravity})..", velocity="..minetest.pos_to_string(velocity)..")...")
debug_msg("player '"..name.."' is "..state.." (physics="..minetest.pos_to_string({x=physics.speed, y=physics.jump,z=physics.gravity})..", velocity="..minetest.pos_to_string(velocity)..")...")
end
end
end