Aaron Suen baed978f6e Cap nodefall disturbance distance
Teleportation should cause some disturbance, maybe
plausibly even extra disturbance, but it shouldn't be
unlimited.
2020-06-24 00:53:38 -04:00

75 lines
2.1 KiB
Lua

-- LUALOCALS < ---------------------------------------------------------
local math, minetest, nodecore, vector
= math, minetest, nodecore, vector
local math_floor, math_random
= math.floor, math.random
-- LUALOCALS > ---------------------------------------------------------
local falling = {groups = {falling_node = true}}
local function fallcheck(name, start)
if not nodecore.interact(name) then return end
local target = vector.add(start, {
x = math_random() * 128 - 64,
y = math_random() * 128 - 64,
z = math_random() * 128 - 64
})
local pointed = minetest.raycast(start, target, false)()
if not pointed or not pointed.under then return end
local pos = pointed.under
local found = nodecore.find_nodes_around(pos, "group:falling_node", 2)
if #found < 1 then return end
pos = nodecore.pickrand(found)
local miny = pos.y - 64
pos.y = pos.y - 1
while pos.y >= miny and nodecore.match(pos, falling) do pos.y = pos.y - 1 end
if pos.y < miny then return end
pos.y = pos.y + 1
return minetest.check_for_falling(pos)
end
local function queuechecks(qty, name, pos)
if qty < 1 then return end
minetest.after(0, function()
for _ = 1, qty do
fallcheck(name, pos)
end
end)
end
local oldpos = {}
local qtys = {}
local function playercheck(dtime, player)
if not nodecore.interact(player) then return end
local name = player:get_player_name()
local pos = player:get_pos()
local old = oldpos[name] or pos
oldpos[name] = pos
if player:get_player_control().sneak or
not nodecore.player_visible(player) then return end
local dist = vector.distance(pos, old)
if dist > 20 then dist = 20 end
local q = (qtys[name] or 0) + dist * 0.25 + dtime * 0.05
queuechecks(math_floor(q), name, pos)
qtys[name] = q - math_floor(q)
end
nodecore.register_playerstep({
label = "fallingnode disturbance",
action = function(player, _, dtime)
if not nodecore.stasis then return playercheck(dtime, player) end
end
})
nodecore.register_on_dignode("nodefall disturb on dig", function(pos, _, digger)
local name = "(unknown)"
if digger and digger.get_player_name then name = digger:get_player_name() end
queuechecks(4, name, pos)
end)