mirror of
https://github.com/tacigar/maidroid.git
synced 2024-11-18 08:00:25 +01:00
93 lines
2.9 KiB
Lua
93 lines
2.9 KiB
Lua
------------------------------------------------------------
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-- Copyright (c) 2016 tacigar
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-- https://github.com/tacigar/maidroid
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------------------------------------------------------------
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maidroid.modules._aux = {}
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local velocity = 3
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-- change direction to destination and velocity vector
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function maidroid.modules._aux.change_dir_to(self, dest)
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local pos = self.object:getpos()
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local dir = vector.subtract(dest, pos)
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local vel = vector.multiply(vector.normalize(dir), velocity)
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self.object:setvelocity(vel)
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self.object:setyaw(math.atan2(vel.z, vel.x) + math.pi / 2)
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end
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-- change direction and velocity vector
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function maidroid.modules._aux.change_dir(self)
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local rnd = function() return math.random(0, 5) * 2 - 5 end
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local dir = {x = rnd(), y = 0, z = rnd()}
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local vel = vector.multiply(vector.normalize(dir), velocity)
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self.object:setvelocity(vel)
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self.object:setyaw(math.atan2(vel.z, vel.x) + math.pi / 2)
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end
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-- get direction vector by yaw
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function maidroid.modules._aux.get_forward(yaw)
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return { x = math.sin(yaw), y = 0.0, z = -math.cos(yaw) }
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end
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-- round direction vector
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function maidroid.modules._aux.get_round_forward(forward)
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local rforward = { x = 0, y = 0, z = 0}
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if math.abs((forward.x / (math.abs(forward.x) + math.abs(forward.z)))) > 0.5 then
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if forward.x > 0 then rforward.x = 1
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else rforward.x = -1 end
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end
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if math.abs((forward.z / (math.abs(forward.x) + math.abs(forward.z)))) > 0.5 then
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if forward.z > 0 then rforward.z = 1
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else rforward.z = -1 end
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end
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return rforward
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end
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function maidroid.modules._aux.get_under_pos(vec)
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return { x = vec.x, y = vec.y - 1, z = vec.z }
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end
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function maidroid.modules._aux.get_upper_pos(vec)
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return { x = vec.x, y = vec.y + 1, z = vec.z }
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end
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-- pickup droped items
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function maidroid.modules._aux.pickup_item(self, radius, target_pred)
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local pos = self.object:getpos()
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local pred = target_pred or (function(itemstring) return true end)
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local all_objects = minetest.get_objects_inside_radius(pos, radius)
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for _, obj in ipairs(all_objects) do
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if not obj:is_player() and obj:get_luaentity() then
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local itemstring = obj:get_luaentity().itemstring
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if itemstring then
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if pred(itemstring) then
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local inv = maidroid._aux.get_maidroid_inventory(self)
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local stack = ItemStack(itemstring)
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local leftover = inv:add_item("main", stack)
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minetest.add_item(obj:getpos(), leftover)
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obj:get_luaentity().itemstring = ""
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obj:remove()
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end
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end
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end
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end
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end
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-- search surrounding nodes
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function maidroid.modules._aux.search_surrounding(self, lenvec, pred)
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local pos = vector.round(self.object:getpos())
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for xi = -lenvec.x, lenvec.x do
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for yi = -lenvec.y, lenvec.y do
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for zi = -lenvec.z, lenvec.z do
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local p = {x = pos.x + xi, y = pos.y + yi, z = pos.z + zi}
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local node = minetest.get_node(p)
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if pred(self, p, node) then return true, p, node end
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end
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end
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end
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return false, nil, nil
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end
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