Minetest/VoxeLibre
2
0
Fork 0
mirror of https://git.minetest.land/VoxeLibre/VoxeLibre.git synced 2024-11-28 05:21:05 +01:00
Code Issues Projects Releases Packages Wiki Activity

Move fiction constant to top of file, suppress cart flips when direction reverses due to gravity or end of track

Browse source
This commit is contained in:
teknomunk 2024-03-09 18:45:01 +00:00
parent b51496ad8e
commit f57d202a9d
1 changed files with 31 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

45
mods/ENTITIES/mcl_minecarts/init.lua
View file

@ -8,6 +8,7 @@ mcl_minecarts.modpath = minetest.get_modpath(modname)
mcl_minecarts.speed_max = 10
mcl_minecarts.check_float_time = 15
local max_step_distance = 0.5
local friction = 0.1
dofile(mcl_minecarts.modpath.."/functions.lua")
dofile(mcl_minecarts.modpath.."/rails.lua")
@ -371,26 +372,41 @@ local function register_entity(entity_id, mesh, textures, drop, on_rightclick, o
local passenger_attach_position = vector.new(0, -1.75, 0)
local function update_cart_orientation(self,staticdata)
local rot = self.object:get_rotation()
-- constants
local _2_pi = math.pi * 2
local pi = math.pi
local dir = staticdata.dir
if dir.x < 0 then
rot.y = 0.5 * math.pi
elseif dir.x > 0 then
rot.y = 1.5 * math.pi
elseif dir.z < 0 then
rot.y = 1 * math.pi
-- Calculate an angle from the x,z direction components
local rot_y = math.atan2( dir.x, dir.z ) + ( staticdata.rot_adjust or 0 )
if rot_y < 0 then
rot_y = rot_y + _2_pi
end
-- Check if the rotation is a 180 flip and don't change if so
local rot = self.object:get_rotation()
local diff = math.abs((rot_y - ( rot.y + pi ) % _2_pi) )
if diff < 0.001 or diff > _2_pi - 0.001 then
-- Update rotation adjust and recalculate the rotation
staticdata.rot_adjust = ( ( staticdata.rot_adjust or 0 ) + pi ) % _2_pi
rot.y = math.atan2( dir.x, dir.z ) + ( staticdata.rot_adjust or 0 )
else
rot.y = 0
rot.y = rot_y
end
-- Forward/backwards tilt (pitch)
if dir.y < 0 then
rot.x = -0.25 * math.pi
rot.x = -0.25 * pi
elseif dir.y > 0 then
rot.x = 0.25 * math.pi
rot.x = 0.25 * pi
else
rot.x = 0
end
if ( staticdata.rot_adjust or 0 ) < 0.01 then
rot.x = -rot.x
end
self.object:set_rotation(rot)
end
@ -473,7 +489,6 @@ local function register_entity(entity_id, mesh, textures, drop, on_rightclick, o
if not staticdata.connected_at then return end
local acceleration = 0
local friction = 0.1
if DEBUG and staticdata.velocity > 0 then
print( " acceleration="..tostring(acceleration)..",velocity="..tostring(staticdata.velocity)..
@ -491,9 +506,6 @@ local function register_entity(entity_id, mesh, textures, drop, on_rightclick, o
elseif self._brake then
acceleration = -1.5
elseif self._punched then
if statcdata.velocity < 1 then
staticdata.velocity = 1
end
acceleration = 2
elseif self._fueltime and self._fueltime > 0 then
acceleration = 0.6
@ -567,6 +579,11 @@ local function register_entity(entity_id, mesh, textures, drop, on_rightclick, o
staticdata.delay = 0
end
local initial_velocity = 1
if self._punched and statcdata.velocity < initial_velocity then
staticdata.velocity = initial_velocity
end
-- Break long movements into fixed-size steps so that
-- it is impossible to jump across gaps due to server lag
-- causing large timesteps