102 lines
3.2 KiB
Lua
102 lines
3.2 KiB
Lua
local positions = {}
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local ObjectRefmetatable
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local offset = vector.new(0,0.01,0)
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-- table of nodes to ignore when players move through them example air=true
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local ignorenodes = {}
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local function checkray(ray)
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-- returns intersection_point or nil if not blocked
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local next = ray:next()
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local blocked = false
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while next ~= nil and blocked == false do
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local nname = minetest.get_node(next.under).name
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if next.under and (ignorenodes[nname] ~= true) and (next.above ~= next.under) then --right here check node stuff like can_collide and different nodebox vs collisionbox
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blocked = true
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return next.intersection_point
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end
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next = ray:next()
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end
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end
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minetest.register_on_mods_loaded(function()
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for key, value in pairs(minetest.registered_nodes) do
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if value.walkable == false then
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ignorenodes[key] = true
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end
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local selbox = value.selection_box or value.node_box
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local colbox = value.collision_box or value.node_box
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--print(dump(value.selection_box),dump(value.collision_box))
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if (selbox ~= nil and colbox ~= nil)
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and(dump(selbox) ~= dump(colbox)) then
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ignorenodes[key] = true
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end
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end
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end)
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minetest.register_globalstep(function(dtime)
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for index, value in ipairs(minetest.get_connected_players()) do
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local name = value:get_player_name()
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if not minetest.check_player_privs(name, "noclip") then
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local pos = value:get_pos() + offset
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local lastpos
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if positions[name] == nil then
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positions[name] = pos
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end
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lastpos = positions[name]
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local between = vector.new(lastpos.x,pos.y,lastpos.z)
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if pos.y < lastpos.y then
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between = vector.new(pos.x,lastpos.y,pos.z)
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end
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local blocked
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local ray = Raycast(positions[name], between, false, false)
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local ray2 = Raycast(between, pos, false, false)
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if positions[name] ~= between then
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blocked = checkray(ray)
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end
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if not blocked then
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blocked = checkray(ray2)
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end
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if blocked then
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value:old_set_pos(positions[name] - offset)
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else
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positions[name] = pos
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end
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end
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end
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end)
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local function patchobj(ObjectRef)
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ObjectRefmetatable = getmetatable(ObjectRef)
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local gp = ObjectRefmetatable.set_pos
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local mt = ObjectRefmetatable.move_to
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local newgp = function (self,pos, ...)
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if self:is_player() then
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positions[self:get_player_name()] = nil
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print("player teleprotd")
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end
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gp(self,pos,...)
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end
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local newmt = function (self,pos, ...)
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if self:is_player() then
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positions[self:get_player_name()] = nil
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print("player teleprotd")
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end
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mt(self,pos,...)
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end
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ObjectRefmetatable.set_pos = newgp
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ObjectRefmetatable.old_set_pos = gp
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ObjectRefmetatable.move_to = newmt
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ObjectRefmetatable.old_move_to = mt
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end
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minetest.register_on_joinplayer(function(ObjectRef, last_login)
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if ObjectRefmetatable then
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return
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end
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patchobj(ObjectRef)
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end)
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