Merge pull request #38 from kpoppel/master

kpoppel

2013-07-02 053fa59739f4b772174bf0a090969b3395ab3f98

 technic/battery_box.lua

@@ -1,23 +1,8 @@
-- register LV machines here
local LV_machines = {}
function register_LV_machine(string1,string2)
   LV_machines[string1] = string2
end

power_tools ={}
registered_power_tools_count=0

function register_power_tool (string1,max_charge)
   registered_power_tools_count=registered_power_tools_count+1
   power_tools[registered_power_tools_count]={}
   power_tools[registered_power_tools_count].tool_name=string1
   power_tools[registered_power_tools_count].max_charge=max_charge
end

register_power_tool ("technic:battery",10000)
register_power_tool ("technic:red_energy_crystal",100000)
register_power_tool ("technic:green_energy_crystal",250000)
register_power_tool ("technic:blue_energy_crystal",500000)
-- 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',
@@ -28,29 +13,32 @@
            }
         })

minetest.register_craft({
            output = 'technic:battery_box 1',
            recipe = {
               {'technic:battery', 'default:wood', 'technic:battery'},
               {'technic:battery', 'moreores:copper_ingot', 'technic:battery'},
               {'default:steel_ingot', 'default:steel_ingot', 'default:steel_ingot'},
            }
         })


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}}}})

minetest.register_craftitem("technic:battery_box", {
                description = "Battery box",
                stack_max = 99,
             })
--------------------------------------------
-- 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', 'moreores:copper_ingot', 'technic:battery'},
    {'default:steel_ingot', 'default:steel_ingot', 'default:steel_ingot'},
      }
   })


battery_box_formspec =
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;]"..
@@ -71,28 +59,28 @@
      sounds = default.node_sound_wood_defaults(),
      drop="technic:battery_box",
      on_construct = function(pos)
              if pos == nil then return end
              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_float("internal_EU_buffer", 0)
              meta:set_float("internal_EU_buffer_size", 60000)
              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)
         if pos == nil then return end
         local meta = minetest.env:get_meta(pos);
         local inv = meta:get_inventory()
         if not inv:is_empty("dst") then
            return false
         elseif not inv:is_empty("src") then
            return false
         end
         return true
           end,
         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,
   })


@@ -105,51 +93,101 @@
    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",
    on_construct = function(pos)
              if pos == nil then return end
              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_float("internal_EU_buffer", 0)
              meta:set_float("internal_EU_buffer_size", 60000)
              inv:set_size("src", 1)
              inv:set_size("dst", 1)
           end,
    can_dig = function(pos,player)
         if pos == nil then return end
         local meta = minetest.env:get_meta(pos);
         local inv = meta:get_inventory()
         if not inv:is_empty("dst") then
            return false
         elseif not inv:is_empty("src") then
            return false
         end
         return true
           end,
            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

function get_RE_item_load (load1,max_load)
   if load1==0 then load1=65535 end
   local temp = 65536-load1
   temp= temp/65535*max_load
   return math.floor(temp + 0.5)
end
local power_tools = technic.LV_power_tools

function set_RE_item_load (load1,max_load)
   if load1 == 0 then return 65535 end
   local temp=load1/max_load*65535
   temp=65536-temp
   return math.floor(temp)
end
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

function set_RE_wear (item_stack,load1,max_load)
   local temp=65536-math.floor(load1/max_load*65535)
   item_stack["wear"]=tostring(temp)
   return item_stack
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",
@@ -157,12 +195,39 @@
    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 charge     = meta:get_int("internal_EU_buffer")
      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((charge/max_charge)*8)
      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
@@ -170,224 +235,26 @@
         elseif i==0 then hacky_swap_node(pos,"technic:battery_box") end
         meta:set_float("last_side_shown",i)
      end
		
      --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 item_max_charge=nil
         for i=1,registered_power_tools_count,1 do
            if power_tools[i].tool_name==src_item["name"] then
          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[i].max_charge
          local load1           = src_meta["charge"]
          local load_step       = 1000 -- how much to charge per tick
          if load1<item_max_charge and charge>0 then
             if charge-load_step<0 then load_step=charge end
             if load1+load_step>item_max_charge then load_step=item_max_charge-load1 end
             load1=load1+load_step
             charge=charge-load_step
             set_RE_wear(src_item,load1,item_max_charge)
             src_meta["charge"]=load1
             src_item["metadata"]=set_item_meta(src_meta)
             inv:set_stack("src", 1, src_item)
          end
          meta:set_int("internal_EU_buffer",charge)
          break
            end
         end
      end
		
      -- discharging registered power tools
      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 item_max_charge=nil
         for i=1,registered_power_tools_count,1 do
            if power_tools[i].tool_name==src_item["name"] then
          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
          local item_max_charge = power_tools[i].max_charge
          local load1           = src_meta["charge"]
          local load_step       = 4000 -- how much to discharge per tick
          if load1>0 and charge<max_charge then
             if charge+load_step>max_charge then load_step=max_charge-charge end
             if load1-load_step<0 then load_step=load1 end
             load1=load1-load_step
             charge=charge+load_step
             set_RE_wear(src_item,load1,item_max_charge)
             src_meta["charge"]=load1
             src_item["metadata"]=set_item_meta(src_meta)
             inv:set_stack("dst", 1, src_item)
          end
          meta:set_int("internal_EU_buffer",charge)
          break
            end
         end
      end

      local load = math.floor(charge/60000 * 100)
      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]"
              )

      -- Next index the surrounding network the get the producers and receivers on the power grid
      local pos1={}
      pos1.y=pos.y-1
      pos1.x=pos.x
      pos1.z=pos.z

      meta1 = minetest.env:get_meta(pos1)
      if meta1:get_float("cablelike")~=1 then return end

      local LV_nodes = {}
      local PR_nodes = {}
      local RE_nodes = {}
      local BA_nodes = {}

      LV_nodes[1]={}
      LV_nodes[1].x=pos1.x
      LV_nodes[1].y=pos1.y
      LV_nodes[1].z=pos1.z
      LV_nodes[1].visited=false

      local table_index=1
      repeat
         check_LV_node(PR_nodes,RE_nodes,BA_nodes,LV_nodes,table_index)
         table_index=table_index+1
         if LV_nodes[table_index]==nil then break end
      until false


      -- Get power from all connected producers
      local pr_pos
                for _,pr_pos in ipairs(PR_nodes) do
         local meta1              = minetest.env:get_meta(pr_pos)
         local internal_EU_buffer = meta1:get_float("internal_EU_buffer")
         local charge_to_take     = 200
         if charge<max_charge then
            if internal_EU_buffer-charge_to_take<=0 then
          charge_to_take=internal_EU_buffer
            end
            if charge_to_take>0 then
          charge=charge+charge_to_take
          internal_EU_buffer=internal_EU_buffer-charge_to_take
          meta1:set_float("internal_EU_buffer",internal_EU_buffer)
            end
         end
      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

      if charge>max_charge then charge=max_charge end

      -- Provide power to all connected receivers
      local re_pos
                for _,re_pos in ipairs(RE_nodes) do
         local meta1                   = minetest.env:get_meta(re_pos)
         local internal_EU_buffer      = meta1:get_float("internal_EU_buffer")
         local internal_EU_buffer_size = meta1:get_float("internal_EU_buffer_size")
         local charge_to_give          = math.min(200, charge/table.getn(RE_nodes))
         if internal_EU_buffer+charge_to_give>internal_EU_buffer_size then
            charge_to_give=internal_EU_buffer_size-internal_EU_buffer
         end
         if charge-charge_to_give<0 then charge_to_give=charge end

         internal_EU_buffer=internal_EU_buffer+charge_to_give
         meta1:set_float("internal_EU_buffer",internal_EU_buffer)
         charge=charge-charge_to_give;
      end
      charge=math.floor(charge)
      meta:set_string("infotext", "LV Battery box: "..charge.."/"..max_charge);
      meta:set_int("internal_EU_buffer",charge)
        end
 })

-- Register as a battery type
-- Battery type machines function as power reservoirs and can both receive and give back power
register_LV_machine("technic:battery_box","BA")
technic.register_LV_machine("technic:battery_box","BA")
for i=1,8,1 do
   register_LV_machine("technic:battery_box"..i,"BA")
end

function add_new_cable_node (LV_nodes,pos1)
   if LV_nodes == nil then return true end
   local i=1
   repeat
      if LV_nodes[i]==nil then break end
      if pos1.x==LV_nodes[i].x and pos1.y==LV_nodes[i].y and pos1.z==LV_nodes[i].z then return false end
      i=i+1
   until false
   LV_nodes[i]={}
   LV_nodes[i].x=pos1.x
   LV_nodes[i].y=pos1.y
   LV_nodes[i].z=pos1.z
   return true
end

function check_LV_node(PR_nodes,RE_nodes,BA_nodes,LV_nodes,i)
   local pos1={}
   pos1.x=LV_nodes[i].x
   pos1.y=LV_nodes[i].y
   pos1.z=LV_nodes[i].z

   pos1.x=pos1.x+1
   check_LV_node_subp (PR_nodes,RE_nodes,BA_nodes,LV_nodes,pos1)
   pos1.x=pos1.x-2
   check_LV_node_subp (PR_nodes,RE_nodes,BA_nodes,LV_nodes,pos1)
   pos1.x=pos1.x+1

   pos1.y=pos1.y+1
   check_LV_node_subp (PR_nodes,RE_nodes,BA_nodes,LV_nodes,pos1)
   pos1.y=pos1.y-2
   check_LV_node_subp (PR_nodes,RE_nodes,BA_nodes,LV_nodes,pos1)
   pos1.y=pos1.y+1

   pos1.z=pos1.z+1
   check_LV_node_subp (PR_nodes,RE_nodes,BA_nodes,LV_nodes,pos1)
   pos1.z=pos1.z-2
   check_LV_node_subp (PR_nodes,RE_nodes,BA_nodes,LV_nodes,pos1)
   pos1.z=pos1.z+1
   return new_node_added
end

function check_LV_node_subp (PR_nodes,RE_nodes,BA_nodes,LV_nodes,pos1)
   local meta = minetest.env:get_meta(pos1)
   local name = minetest.env:get_node(pos1).name
   if meta:get_float("cablelike")==1 then
      add_new_cable_node(LV_nodes,pos1)
   elseif LV_machines[name] then
      --print(name.." is a "..LV_machines[name])
      if     LV_machines[name] == "PR" then
    add_new_cable_node(PR_nodes,pos1)
      elseif LV_machines[name] == "RE" then
    add_new_cable_node(RE_nodes,pos1)
      elseif LV_machines[name] == "BA" then
    add_new_cable_node(BA_nodes,pos1)
      end
   end
   technic.register_LV_machine("technic:battery_box"..i,"BA")
end