ShadowNinja
2013-07-11 5d470cd753efe8f4640099165a7bfc0c6e181c35
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-- LV Battery box and some other nodes...
technic.register_LV_power_tool("technic:battery",10000)
technic.register_MV_power_tool("technic:red_energy_crystal",100000)
technic.register_HV_power_tool("technic:green_energy_crystal",250000)
technic.register_HV_power_tool("technic:blue_energy_crystal",500000)
 
minetest.register_craft({
    output = 'technic:battery 1',
    recipe = {
        {'default:wood', 'default:copper_ingot', 'default:wood'},
        {'default:wood', 'moreores:tin_ingot',   'default:wood'},
        {'default:wood', 'default:copper_ingot', 'default:wood'},
    }
})
 
minetest.register_tool("technic:battery", {
    description = "RE Battery",
    inventory_image = "technic_battery.png",
    tool_capabilities = {
        load=0,
        max_drop_level=0,
        groupcaps={
            fleshy={times={}, uses=10000, maxlevel=0}
        }
    }
})
 
--------------------------------------------
-- The Battery box
--------------------------------------------
minetest.register_craftitem("technic:battery_box", {
    description = "Battery box",
    stack_max = 99,
})
 
minetest.register_craft({
    output = 'technic:battery_box 1',
    recipe = {
        {'technic:battery',     'default:wood',         'technic:battery'},
        {'technic:battery',     'default:copper_ingot', 'technic:battery'},
        {'default:steel_ingot', 'default:steel_ingot',  'default:steel_ingot'},
    }
})
 
local battery_box_formspec =
    "invsize[8,9;]"..
    "image[1,1;1,2;technic_power_meter_bg.png]"..
    "list[current_name;src;3,1;1,1;]"..
    "image[4,1;1,1;technic_battery_reload.png]"..
    "list[current_name;dst;5,1;1,1;]"..
    "label[0,0;Battery box]"..
    "label[3,0;Charge]"..
    "label[5,0;Discharge]"..
    "label[1,3;Power level]"..
    "list[current_player;main;0,5;8,4;]"
 
minetest.register_node("technic:battery_box", {
    description = "LV Battery Box",
    tiles = {"technic_battery_box_top.png", "technic_battery_box_bottom.png",
             "technic_battery_box_side0.png", "technic_battery_box_side0.png",
         "technic_battery_box_side0.png", "technic_battery_box_side0.png"},
    groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2},
    sounds = default.node_sound_wood_defaults(),
    drop="technic:battery_box",
    on_construct = function(pos)
        local meta = minetest.env:get_meta(pos)
        local inv = meta:get_inventory()
        meta:set_string("infotext", "Battery box")
        meta:set_float("technic_power_machine", 1)
        meta:set_string("formspec", battery_box_formspec)
        meta:set_int("LV_EU_demand", 0) -- How much can this node charge
        meta:set_int("LV_EU_supply", 0) -- How much can this node discharge
        meta:set_int("LV_EU_input",  0) -- How much power is this machine getting.
        meta:set_float("internal_EU_charge", 0)
        inv:set_size("src", 1)
        inv:set_size("dst", 1)
    end,
    can_dig = function(pos,player)
        local meta = minetest.env:get_meta(pos);
        local inv = meta:get_inventory()
        if not inv:is_empty("src") or not inv:is_empty("dst") then
            minetest.chat_send_player(player:get_player_name(),
                "Machine cannot be removed because it is not empty");
            return false
        else
            return true
        end
    end,
})
 
 
for i=1,8,1 do
   minetest.register_node(
      "technic:battery_box"..i, {
     description = "LV Battery Box",
     tiles = {"technic_battery_box_top.png", "technic_battery_box_bottom.png",
              "technic_battery_box_side0.png^technic_power_meter"..i..".png",
          "technic_battery_box_side0.png^technic_power_meter"..i..".png",
          "technic_battery_box_side0.png^technic_power_meter"..i..".png",
          "technic_battery_box_side0.png^technic_power_meter"..i..".png"},
     groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2,not_in_creative_inventory=1},
     sounds = default.node_sound_wood_defaults(),
     drop="technic:battery_box",
     can_dig = function(pos,player)
              local meta = minetest.env:get_meta(pos);
              local inv = meta:get_inventory()
              if not inv:is_empty("src") or not inv:is_empty("dst") then
             minetest.chat_send_player(player:get_player_name(), "Machine cannot be removed because it is not empty");
             return false
              else
             return true
              end
           end,
      })
end
 
local power_tools = technic.LV_power_tools
 
local charge_LV_tools = function(meta, charge)
             --charge registered power tools
             local inv = meta:get_inventory()
             if inv:is_empty("src")==false  then
            local srcstack = inv:get_stack("src", 1)
            local src_item=srcstack:to_table()
            local src_meta=get_item_meta(src_item["metadata"])
            
            local toolname = src_item["name"]
            if power_tools[toolname] ~= nil then
               -- Set meta data for the tool if it didn't do it itself :-(
               src_meta=get_item_meta(src_item["metadata"])
               if src_meta==nil then
                  src_meta={}
                  src_meta["technic_power_tool"]=true
                  src_meta["charge"]=0
               else
                  if src_meta["technic_power_tool"]==nil then
                 src_meta["technic_power_tool"]=true
                 src_meta["charge"]=0
                  end
               end
               -- Do the charging
               local item_max_charge = power_tools[toolname]
               local load            = src_meta["charge"]
               local load_step       = 1000 -- how much to charge per tick
               if load<item_max_charge and charge>0 then
                  if charge-load_step<0 then load_step=charge end
                  if load+load_step>item_max_charge then load_step=item_max_charge-load end
                  load=load+load_step
                  charge=charge-load_step
                  technic.set_RE_wear(src_item,load,item_max_charge)
                  src_meta["charge"]   = load
                  src_item["metadata"] = set_item_meta(src_meta)
                  inv:set_stack("src", 1, src_item)
               end
            end
             end
             return charge -- return the remaining charge in the battery
          end
 
local discharge_LV_tools = function(meta, charge, max_charge)
            -- discharging registered power tools
            local inv = meta:get_inventory()
            if inv:is_empty("dst") == false then
               srcstack = inv:get_stack("dst", 1)
               src_item=srcstack:to_table()
               local src_meta=get_item_meta(src_item["metadata"])
               local toolname = src_item["name"]
               if power_tools[toolname] ~= nil then
                  -- Set meta data for the tool if it didn't do it itself :-(
                  src_meta=get_item_meta(src_item["metadata"])
                  if src_meta==nil then
                 src_meta={}
                 src_meta["technic_power_tool"]=true
                 src_meta["charge"]=0
                  else
                 if src_meta["technic_power_tool"]==nil then
                    src_meta["technic_power_tool"]=true
                    src_meta["charge"]=0
                 end
                  end
                  -- Do the discharging
                  local item_max_charge = power_tools[toolname]
                  local load            = src_meta["charge"]
                  local load_step       = 4000 -- how much to discharge per tick
                  if load>0 and charge<max_charge then
                 if charge+load_step>max_charge then load_step=max_charge-charge end
                 if load-load_step<0 then load_step=load end
                 load=load-load_step
                 charge=charge+load_step
                 technic.set_RE_wear(src_item,load,item_max_charge)
                 src_meta["charge"]=load
                 src_item["metadata"]=set_item_meta(src_meta)
                 inv:set_stack("dst", 1, src_item)
                  end
               end
            end
            return charge -- return the remaining charge in the battery
             end
 
minetest.register_abm(
   {nodenames = {"technic:battery_box","technic:battery_box1","technic:battery_box2","technic:battery_box3","technic:battery_box4",
         "technic:battery_box5","technic:battery_box6","technic:battery_box7","technic:battery_box8"},
    interval = 1,
    chance = 1,
    action = function(pos, node, active_object_count, active_object_count_wider)
        local meta               = minetest.env:get_meta(pos)
        local max_charge         = 60000 -- Set maximum charge for the device here
        local max_charge_rate    = 1000  -- Set maximum rate of charging
        local max_discharge_rate = 2000  -- Set maximum rate of discharging
        local eu_input           = meta:get_int("LV_EU_input")
        local current_charge     = meta:get_int("internal_EU_charge") -- Battery charge right now
 
        -- Power off automatically if no longer connected to a switching station
        technic.switching_station_timeout_count(pos, "LV")
 
        -- Charge/discharge the battery with the input EUs
        if eu_input >=0 then
           current_charge = math.min(current_charge+eu_input, max_charge)
        else
           current_charge = math.max(current_charge+eu_input, 0)
        end
 
        -- Charging/discharging tools here
        current_charge = charge_LV_tools(meta, current_charge)
        current_charge = discharge_LV_tools(meta, current_charge, max_charge)
 
        -- Set a demand (we allow batteries to charge on less than the demand though)
        meta:set_int("LV_EU_demand", math.min(max_charge_rate, max_charge-current_charge))
        --print("BA:"..max_charge_rate.."|"..max_charge-current_charge.."|"..math.min(max_charge_rate, max_charge-current_charge))
 
        -- Set how much we can supply
        meta:set_int("LV_EU_supply", math.min(max_discharge_rate, current_charge))
 
        meta:set_int("internal_EU_charge", current_charge)
        --dprint("BA: input:"..eu_input.." supply="..meta:get_int("LV_EU_supply").." demand="..meta:get_int("LV_EU_demand").." current:"..current_charge)
 
        -- Select node textures
        local i=math.ceil((current_charge/max_charge)*8)
        if i > 8 then i = 8 end
        local j = meta:get_float("last_side_shown")
        if i~=j then
           if i>0 then hacky_swap_node(pos,"technic:battery_box"..i)
           elseif i==0 then hacky_swap_node(pos,"technic:battery_box") end
           meta:set_float("last_side_shown",i)
        end
 
        local load = math.floor(current_charge/max_charge * 100)
        meta:set_string("formspec",
                battery_box_formspec..
                   "image[1,1;1,2;technic_power_meter_bg.png^[lowpart:"..
                   (load)..":technic_power_meter_fg.png]"
                 )
 
        if eu_input == 0 then
           meta:set_string("infotext", "LV Battery box: "..current_charge.."/"..max_charge.." (idle)")
        else
           meta:set_string("infotext", "LV Battery box: "..current_charge.."/"..max_charge)
        end
 
         end
 })
 
-- Register as a battery type
-- Battery type machines function as power reservoirs and can both receive and give back power
technic.register_LV_machine("technic:battery_box","BA")
for i=1,8,1 do
   technic.register_LV_machine("technic:battery_box"..i,"BA")
end