David Leal
2019-09-14 d5df30c3ff5ad0b9486288521abca5b517651936
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local S = technic.getter
 
technic.register_power_tool("technic:prospector", 300000)
 
local function get_metadata(toolstack)
    local m = minetest.deserialize(toolstack:get_metadata())
    if not m then m = {} end
    if not m.charge then m.charge = 0 end
    if not m.target then m.target = "" end
    if not m.look_depth then m.look_depth = 7 end
    if not m.look_radius then m.look_radius = 1 end
    return m
end
 
minetest.register_tool("technic:prospector", {
    description = S("Prospector"),
    inventory_image = "technic_prospector.png",
    wear_represents = "technic_RE_charge",
    on_refill = technic.refill_RE_charge,
    on_use = function(toolstack, user, pointed_thing)
        if not user or not user:is_player() or user.is_fake_player then return end
        if pointed_thing.type ~= "node" then return end
        local toolmeta = get_metadata(toolstack)
        local look_diameter = toolmeta.look_radius * 2 + 1
        local charge_to_take = toolmeta.look_depth * (toolmeta.look_depth + 1) * look_diameter * look_diameter
        if toolmeta.charge < charge_to_take then return end
        if toolmeta.target == "" then
            minetest.chat_send_player(user:get_player_name(), "Right-click to set target block type")
            return
        end
        if not technic.creative_mode then
            toolmeta.charge = toolmeta.charge - charge_to_take
            toolstack:set_metadata(minetest.serialize(toolmeta))
            technic.set_RE_wear(toolstack, toolmeta.charge, technic.power_tools[toolstack:get_name()])
        end
        local start_pos = pointed_thing.under
        local forward = minetest.facedir_to_dir(minetest.dir_to_facedir(user:get_look_dir(), true))
        local right = forward.x ~= 0 and { x=0, y=1, z=0 } or (forward.y ~= 0 and { x=0, y=0, z=1 } or { x=1, y=0, z=0 })
        local up = forward.x ~= 0 and { x=0, y=0, z=1 } or (forward.y ~= 0 and { x=1, y=0, z=0 } or { x=0, y=1, z=0 })
        local base_pos = vector.add(start_pos, vector.multiply(vector.add(right, up), - toolmeta.look_radius))
        local found = false
        for f = 0, toolmeta.look_depth-1 do
            for r = 0, look_diameter-1 do
                for u = 0, look_diameter-1 do
                    if minetest.get_node(vector.add(vector.add(vector.add(base_pos, vector.multiply(forward, f)), vector.multiply(right, r)), vector.multiply(up, u))).name == toolmeta.target then found = true end
                end
            end
        end
        if math.random() < 0.02 then found = not found end
        minetest.chat_send_player(user:get_player_name(), minetest.registered_nodes[toolmeta.target].description.." is "..(found and "present" or "absent").." in "..look_diameter.."x"..look_diameter.."x"..toolmeta.look_depth.." region")
        minetest.sound_play("technic_prospector_"..(found and "hit" or "miss"), { pos = vector.add(user:get_pos(), { x = 0, y = 1, z = 0 }), gain = 1.0, max_hear_distance = 10 })
        return toolstack
    end,
    on_place = function(toolstack, user, pointed_thing)
        if not user or not user:is_player() or user.is_fake_player then return end
        local toolmeta = get_metadata(toolstack)
        local pointed
        if pointed_thing.type == "node" then
            local pname = minetest.get_node(pointed_thing.under).name
            local pdef = minetest.registered_nodes[pname]
            if pdef and (pdef.groups.not_in_creative_inventory or 0) == 0 and pname ~= toolmeta.target then
                pointed = pname
            end
        end
        local look_diameter = toolmeta.look_radius * 2 + 1
        minetest.show_formspec(user:get_player_name(), "technic:prospector_control",
            "size[7,8.5]"..
            "item_image[0,0;1,1;"..toolstack:get_name().."]"..
            "label[1,0;"..minetest.formspec_escape(toolstack:get_definition().description).."]"..
            (toolmeta.target ~= "" and
                "label[0,1.5;Current target:]"..
                "label[0,2;"..minetest.formspec_escape(minetest.registered_nodes[toolmeta.target].description).."]"..
                "item_image[0,2.5;1,1;"..toolmeta.target.."]" or
                "label[0,1.5;No target set]")..
            (pointed and
                "label[3.5,1.5;May set new target:]"..
                "label[3.5,2;"..minetest.formspec_escape(minetest.registered_nodes[pointed].description).."]"..
                "item_image[3.5,2.5;1,1;"..pointed.."]"..
                "button_exit[3.5,3.65;2,0.5;target_"..pointed..";Set target]" or
                "label[3.5,1.5;No new target available]")..
            "label[0,4.5;Region cross section:]"..
            "label[0,5;"..look_diameter.."x"..look_diameter.."]"..
            "label[3.5,4.5;Set region cross section:]"..
            "button_exit[3.5,5.15;1,0.5;look_radius_0;1x1]"..
            "button_exit[4.5,5.15;1,0.5;look_radius_1;3x3]"..
            "button_exit[5.5,5.15;1,0.5;look_radius_3;7x7]"..
            "label[0,6;Region depth:]"..
            "label[0,6.5;"..toolmeta.look_depth.."]"..
            "label[3.5,6;Set region depth:]"..
            "button_exit[3.5,6.65;1,0.5;look_depth_7;7]"..
            "button_exit[4.5,6.65;1,0.5;look_depth_14;14]"..
            "button_exit[5.5,6.65;1,0.5;look_depth_21;21]"..
            "label[0,7.5;Accuracy:]"..
            "label[0,8;98%]")
        return
    end,
})
 
minetest.register_on_player_receive_fields(function(user, formname, fields)
        if formname ~= "technic:prospector_control" then return false end
    if not user or not user:is_player() or user.is_fake_player then return end
    local toolstack = user:get_wielded_item()
    if toolstack:get_name() ~= "technic:prospector" then return true end
    local toolmeta = get_metadata(toolstack)
    for field, value in pairs(fields) do
        if field:sub(1, 7) == "target_" then
            toolmeta.target = field:sub(8)
        end
        if field:sub(1, 12) == "look_radius_" then
            toolmeta.look_radius = field:sub(13)
        end
        if field:sub(1, 11) == "look_depth_" then
            toolmeta.look_depth = field:sub(12)
        end
    end
    toolstack:set_metadata(minetest.serialize(toolmeta))
    user:set_wielded_item(toolstack)
    return true
end)
 
minetest.register_craft({
    output = "technic:prospector",
    recipe = {
        {"moreores:pick_silver", "moreores:mithril_block", "pipeworks:teleport_tube_1"},
        {"basic_materials:brass_ingot", "technic:control_logic_unit", "basic_materials:brass_ingot"},
        {"", "technic:blue_energy_crystal", ""},
    }
})