commit be91fbf82a59538f520ac5f4541bfb057cba93bc
Author: whosit <knbdevel@gmail.com>
Date:   Wed May 10 13:10:00 2023 +0300

    initial prototype

diff --git a/LICENSE.txt b/LICENSE.txt
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--- /dev/null
+++ b/LICENSE.txt
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+Copyright (c) 2023 whosit
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/init.lua b/init.lua
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+++ b/init.lua
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+local MODNAME = "dvornik"
+local VENIK_ACTIVE_TIME = 0.55
+local DEBUG = true
+
+local active_veniks = {}
+
+local function is_venik_active(player)
+    return active_veniks[player]
+end
+
+local function deactivate_venik(player)
+    active_veniks[player] = nil
+end
+
+local function activate_venik(player, venik)
+    -- FIXME venik is not used
+    if is_venik_active(player) then
+        return
+    end
+    minetest.sound_play('dvornik_sweep', {
+        pos = player:get_pos(),
+        max_hear_distance = 10
+    })
+    active_veniks[player] = minetest.after(VENIK_ACTIVE_TIME, deactivate_venik, player)
+end
+
+minetest.register_tool(
+    "dvornik:venik", {
+        description = "A venik for a dvornik",
+        inventory_image = "dvornik_venik.png",
+        --wield_scale = {x = 1, y = -1, z = 1},
+        on_use = function(itemstack, user, pointed_thing)
+            if not (user and user:is_player()) then
+                return itemstack
+            end
+            -- TODO change it's visuals while active?
+            activate_venik(user, itemstack)
+
+            -- TODO short cooldown?
+            return itemstack
+        end,
+        tool_capabilities = {
+            full_punch_inverval = VENIK_ACTIVE_TIME * 10
+        }
+    }
+)
+
+if DEBUG then
+    minetest.register_tool(
+        "dvornik:garbage", {
+            description = "A garbage for a dvornik to clean up",
+            inventory_image = "garbage.png",
+            on_use = function(itemstack, user, pointed_thing)
+                local garbage_list = {
+                    "dirt", "cobble", "wood", "stick", "coal_lump", "gold_lump", "apple", "sand", "steel_ingot",
+                    "copper_ingot"
+                }
+                if not (user and user:is_player()) then
+                    return itemstack
+                end
+
+                local pos = user:get_pos()
+                for i = 1, 3 do
+                    for _, item in pairs(garbage_list) do
+                        local r = 4.0
+                        local p = vector.add(pos, vector.new((math.random() - 0.5) * r, 0.5, (math.random() - 0.5) * r))
+                        minetest.add_item(p, "default:" .. item)
+                    end
+                end
+                return itemstack
+            end
+        }
+    )
+end
+
+local function player_get_eye_pos(player)
+    local p_pos = player:get_pos()
+    local p_eye_height = player:get_properties().eye_height
+    p_pos.y = p_pos.y + p_eye_height
+    local p_eye_pos = p_pos
+    local p_eye_offset = vector.multiply(player:get_eye_offset(), 0.1)
+    local yaw = player:get_look_horizontal()
+    p_eye_pos = vector.add(p_eye_pos, vector.rotate_around_axis(p_eye_offset, { x = 0, y = 1, z = 0 }, yaw))
+    return p_eye_pos
+end
+
+
+local function add_debug_particle(pos)
+    minetest.add_particle({
+        pos = pos,
+        expirationtime = 2,
+        size = 1,
+        texture = "test.png"
+
+    })
+end
+
+-- TODO recheck if player leaving the server is not crashing it
+
+local RANGE = 3.0
+--local RADIUS = 1.0
+local function trace_and_pickup(player)
+    local p_eye_pos = player_get_eye_pos(player)
+    local to = vector.add(p_eye_pos, vector.multiply(player:get_look_dir(), RANGE))
+    local ray = minetest.raycast(
+        p_eye_pos,
+        to,
+        true,  -- point to objects
+        false) -- point to liquids
+    local pointed_thing = ray:next()
+    while pointed_thing do
+        if DEBUG and pointed_thing.type ~= "nothing" and not (pointed_thing.type == "object" and pointed_thing.ref == player) then
+            local point = pointed_thing.intersection_point
+            add_debug_particle(point)
+        end
+        if pointed_thing.type == "object" then
+            if pointed_thing.ref ~= player then -- exclude the player themselves from the raycast
+                -- "pickup"
+                -- for _, obj in pairs(minetest.get_objects_inside_radius(point, RADIUS)) do
+                --     obj:remove()
+                -- end
+                local item = pointed_thing.ref:get_luaentity()
+                -- TODO check if we can pick up more item
+                -- TODO if can't pick up any more items, then maybe move the item entity a bit?
+                if item.on_punch then -- TODO probaly don't need this check
+                    item:on_punch(player)
+                    minetest.sound_play("dvornik_pickup", {
+                        to_player = player:get_player_name()
+                        --pos = player:get_pos(),
+                        --max_hear_distance = 10
+                    })
+                    minetest.add_particle({
+                        pos = pointed_thing.ref:get_pos(),
+                        expirationtime = 1,
+                        size = 1,
+                        texture = "test.png" -- TODO
+
+                    })
+                end
+            end
+        end
+        pointed_thing = ray:next()
+    end
+end
+
+local timer = 0
+minetest.register_globalstep(function(_dtime)
+    for player, _ in pairs(active_veniks) do
+        trace_and_pickup(player)
+    end
+end
+)
+
+minetest.register_on_leaveplayer(function(player, timed_out)
+    deactivate_venik(player)
+end)
+
+-- minetest.register_on_item_pickup(function(itemstack, picker, pointed_thing, time_from_last_punch,  ...)
+-- end)
+
+-- minetest.item_pickup(itemstack, picker, pointed_thing, time_from_last_punch, ...)
+-- on_pickup
diff --git a/mod.conf b/mod.conf
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+++ b/mod.conf
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+name = dvornik
+description = 
+depends = 
+optional_depends = 
\ No newline at end of file
diff --git a/sounds/dvornik_pickup.ogg b/sounds/dvornik_pickup.ogg
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diff --git a/sounds/dvornik_sweep.ogg b/sounds/dvornik_sweep.ogg
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diff --git a/textures/dvornik_venik.png b/textures/dvornik_venik.png
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index 0000000..69689cc
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