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local mod_name = minetest.get_current_modname()
local function log(level, message)
minetest.log(level, ('[%s] %s'):format(mod_name, message))
end
log('action', 'CSM cs_waypoints loading...')
minetest.display_chat_message("CSM cs_waypoints loading...")
local mod_storage = minetest.get_mod_storage()
local search_delta_default = 10
--
--
-- local functions
--
--
local function load_waypoints()
if string.find(mod_storage:get_string('waypoints'), 'return') then
return minetest.deserialize(mod_storage:get_string('waypoints'))
else
return {}
end
end
local function load_waypoints_stack()
if string.find(mod_storage:get_string('waypoints_stack'), 'return nil') then
return {}
end
if string.find(mod_storage:get_string('waypoints_stack'), 'return') then
return minetest.deserialize(mod_storage:get_string('waypoints_stack'))
else
return {}
end
end
local waypoints = load_waypoints()
local function safe(func)
-- wrap a function w/ logic to avoid crashing the game
local f = function(...)
local status, out = pcall(func, ...)
if status then
return out
else
log('warning', 'Error (func): ' .. out)
return nil
end
end
return f
end
local function round(x)
return math.floor(x+0.5)
end
local function pairsByKeys(t, f)
local a = {}
for n in pairs(t) do
table.insert(a, n)
end
table.sort(a, f)
local i = 0
return function()
i = i + 1
if a[i] == nil then
return nil
else
return a[i], t[a[i]]
end
end
end
local function lc_cmp(a, b)
return a:lower() < b:lower()
end
local function tostring_point(point)
return ('%i %i.5 %i'):format(round(point.x), round(point.y), round(point.z))
end
local function teleport_to(position_name)
local wpname = position_name
local waypoint = waypoints[wpname]
if waypoint ~= nil then
minetest.run_server_chatcommand('teleport', tostring_point(waypoint))
else
minetest.display_chat_message(('waypoint "%s" not found.'):format(wpname))
end
return true
end
local function show_pos(position_name)
local wpname = position_name
local waypoint = waypoints[wpname]
local rg = ""
if waypoint ~= nil then
rg = wpname .. ": " .. tostring_point(waypoint)
else
rg = ('waypoint "%s" not found.'):format(wpname)
end
return true,rg
end
local function stack_push()
local point = minetest.localplayer:get_pos()
wp_stack = load_waypoints_stack()
count = #wp_stack +1
wp_stack[count] = point
mod_storage:set_string('waypoints_stack', minetest.serialize(wp_stack))
end
local function stack_pop()
wp_stack = load_waypoints_stack()
count = 0
if nil ~= wp_stack then count = #wp_stack end
if count<1 then
minetest.display_chat_message('stack empty - no teleporting')
return
end
minetest.run_server_chatcommand('teleport', tostring_point(wp_stack[count]))
wp_stack[count] = nil
mod_storage:set_string('waypoints_stack', minetest.serialize(wp_stack))
return true
end
local function stack_show()
wp_stack = load_waypoints_stack()
count = 0
if nil ~= wp_stack then count = #wp_stack end
if count<1 then
minetest.display_chat_message('stack empty')
return true
end
output = ""
for i = count,1,-1 do
output = output .. tostring(i) .. " " .. tostring_point(wp_stack[i]).."\n"
end
return true ,output
end
local function stack_clear()
mod_storage:set_string('waypoints_stack', minetest.serialize(nil))
end
local function stack_search(d)
local delta = d
if delta then delta = tonumber(delta) end
if nil == delta then delta = search_delta_default end
if delta < 0 then delta = 0 end
here = minetest.localplayer:get_pos()
minetest.display_chat_message(
('%s : %s'):format("current position", tostring_point(here))
)
for name,pos in pairsByKeys(waypoints, lc_cmp) do
if math.abs(here.y-pos.y) <= delta then
if math.abs(here.x-pos.x) <= delta then
if math.abs(here.z-pos.z) <= delta then
minetest.display_chat_message(
('%s -> %s'):format(name, tostring_point(pos)))
end
end
end
end
return true
end
local function position_shift(p)
local param = p
if not p then return end
while p:sub(1,1) == " " and p:len()> 3 do
p = p:sub(2,99)
end
if p:len()<3 then return end
direction = p:sub(1,1)
d = ""
if direction == "x" or direction == "X" then d = "x" end
if direction == "y" or direction == "Y" then d = "y" end
if direction == "z" or direction == "Z" then d = "z" end
if d == "" then return end
here = minetest.localplayer:get_pos()
distance = tonumber(p:sub(2,8))
if not distance then return end
if distance == 0 then return end
here[d] = here[d] + distance
here.y = here.y - 1 -- correction
minetest.run_server_chatcommand('teleport', tostring_point(here))
end
-- new shift with more than one possible shift coordinate
-- only the last value for one coordinate is used
local function position_shift2(p)
if not p then return end
param = p:split(" ")
shift = {}
shift.x = 0
shift.y = 0
shift.z = 0
vp = 1
while (vp+1 <= #param )
do
direction = param[vp]
d = ""
if direction == "x" or direction == "X" then d = "x" end
if direction == "y" or direction == "Y" then d = "y" end
if direction == "z" or direction == "Z" then d = "z" end
if d ~= "" then
distance = tonumber(param[vp+1])
if not distance then
distance = 0
end
shift[direction] = distance
end
vp = vp+2
end
if shift.x == 0 and shift.y == 0 and shift.z == 0 then
return
end
here = minetest.localplayer:get_pos()
here.x = here.x+shift.x
here.y = here.y+shift.y
here.z = here.z+shift.z
here.y = here.y - 1 -- correction
minetest.run_server_chatcommand('teleport', tostring_point(here))
end
local function calc_distance(wp)
local wpname = wp
local waypoint = waypoints[wpname]
local rg = ""
if waypoint == nil then
rg = ('waypoint "%s" not found.'):format(wp)
else
here = minetest.localplayer:get_pos()
dx = math.abs(here.x-waypoint.x)
dy = math.abs(here.y-waypoint.y)
dz = math.abs(here.z-waypoint.z)
l1 = "x: " .. tostring(round(100*dx)/100) .. " y: "
.. tostring(round(100*dy)/100) .. " z: "
.. tostring(round(100*dz)/100)
delta_hor = math.floor(math.sqrt(dx*dx+dz*dz)*100)/100
delta_3d = math.floor(math.sqrt(dx*dx+dy*dy+dz*dz)*100)/100
l2 = "distance: " .. tostring(delta_3d)
.. " horizontal distance: " .. tostring(delta_hor)
rg = l1 .. "\n" .. l2
end
return true,rg
end
--
--
-- chat commands
--
--
minetest.register_chatcommand('wp_set', {
params = '<name>',
description = 'set a waypoint',
func = safe(function(param)
waypoints = load_waypoints()
local point = minetest.localplayer:get_pos()
waypoints[param] = point
mod_storage:set_string('waypoints', minetest.serialize(waypoints))
minetest.display_chat_message(
('set waypoint "%s" to "%s"'):format(param, tostring_point(point))
)
end),
})
minetest.register_chatcommand('wp_unset', {
params = '<name>',
description = 'remove a waypoint',
func = safe(function(param)
waypoints = load_waypoints()
waypoints[param] = nil
mod_storage:set_string('waypoints', minetest.serialize(waypoints))
minetest.display_chat_message(
('removed waypoint "%s"'):format(param)
)
end),
})
minetest.register_chatcommand('wp_list', {
params = '',
description = 'lists waypoints',
func = safe(function(_)
for name, point in pairsByKeys(waypoints, lc_cmp) do
minetest.display_chat_message(
('%s -> %s'):format(name, tostring_point(point))
)
end
end),
})
minetest.register_chatcommand('tw', {
params = '<waypoint>',
description = 'teleport to a waypoint',
func = safe(function(param)
safe(teleport_to(param))
end),
}
)
minetest.register_chatcommand('tw_push', {
params = '<waypoint>',
description = 'teleport to a waypoint and save old position',
func = safe(function(param)
stack_push()
safe(teleport_to(param))
end),
}
)
-- minetest.register_chatcommand('wp_push', {
-- params = '<position/player>',
-- description = 'teleport to a position/player and save old position',
-- func = safe(function(param)
-- stack_push()
-- minetest.run_server_chatcommand('teleport', param)
-- end),
-- }
-- )
minetest.register_chatcommand('tw_pop', {
params = '',
description = 'return to the last saved position',
func = stack_pop,
}
)
minetest.register_chatcommand('wp_stack', {
params = '',
description = 'shows the stack content',
func = stack_show,
}
)
minetest.register_chatcommand('wp_stack_clear', {
params = '',
description = 'clears the position stack',
func = stack_clear,
}
)
minetest.register_chatcommand('wp_search', {
params = '(<delta>)',
description = 'search a waypoint near the current position',
func = stack_search,
}
)
minetest.register_chatcommand('wp_shift', {
params = '<axis> <distance>',
description = '"shift" the player along the given axis and add the given number',
func = position_shift2,
}
)
minetest.register_chatcommand('wp_dist', {
params = '<waypoint>',
description = 'calculate the distance to a given waypoint',
func = calc_distance,
}
)
minetest.register_chatcommand('wp_show', {
params = '<waypoint>',
description = 'show the coordinates of a given waypoint',
func = show_pos,
}
)
-- wp_grep written by erstazi (player at Linux-Forks.de )
minetest.register_chatcommand('wp_grep', {
params = '<name>',
description = 'lists waypoints',
func = safe(function(param)
local wpname = param
local count = 0
for name, point in pairsByKeys(waypoints, lc_cmp) do
if string.find(name, wpname) then
count = count + 1
minetest.display_chat_message(
('%s -> %s'):format(name, tostring_point(point))
)
end
end
if count == 0 then
minetest.display_chat_message(('waypoint "%s" not found.'):format(wpname))
end
end),
})
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