From 595ed5045171ac45c92551e093fe582e0ca2508e Mon Sep 17 00:00:00 2001
From: RealBadAngel <mk@realbadangel.pl>
Date: Mon, 15 Apr 2013 08:33:01 +0200
Subject: [PATCH] avoid nil
---
technic/battery_box_mv.lua | 355 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 355 insertions(+), 0 deletions(-)
diff --git a/technic/battery_box_mv.lua b/technic/battery_box_mv.lua
new file mode 100644
index 0000000..8fc6dc7
--- /dev/null
+++ b/technic/battery_box_mv.lua
@@ -0,0 +1,355 @@
+MV_machines = {}
+
+registered_MV_machines_count=0
+
+function register_MV_machine (string1,string2)
+registered_MV_machines_count=registered_MV_machines_count+1
+MV_machines[registered_MV_machines_count]={}
+MV_machines[registered_MV_machines_count].machine_name=string1
+MV_machines[registered_MV_machines_count].machine_type=string2
+end
+
+minetest.register_craft({
+ output = 'technic:mv_battery_box 1',
+ recipe = {
+ {'technic:battery_box', 'technic:battery_box', 'technic:battery_box'},
+ {'technic:battery_box', 'technic:mv_transformer', 'technic:battery_box'},
+ {'', 'technic:mv_cable', ''},
+ }
+})
+
+mv_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;MV_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:mv_battery_box", {
+ description = "MV Battery Box",
+ tiles = {"technic_mv_battery_box_top.png", "technic_mv_battery_box_bottom.png", "technic_mv_battery_box_side0.png",
+ "technic_mv_battery_box_side0.png", "technic_mv_battery_box_side0.png", "technic_mv_battery_box_side0.png"},
+ groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2},
+ sounds = default.node_sound_wood_defaults(),
+ technic_mv_power_machine=1,
+ last_side_shown=0,
+ drop="technic:mv_battery_box",
+ on_construct = function(pos)
+ local meta = minetest.env:get_meta(pos)
+ meta:set_string("infotext", "MV Battery box")
+ meta:set_float("technic_mv_power_machine", 1)
+ meta:set_string("formspec", battery_box_formspec)
+ local inv = meta:get_inventory()
+ inv:set_size("src", 1)
+ inv:set_size("dst", 1)
+ battery_charge = 0
+ max_charge = 300000
+ last_side_shown=0
+ end,
+ can_dig = function(pos,player)
+ 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,
+})
+
+
+for i=1,8,1 do
+minetest.register_node("technic:mv_battery_box"..i, {
+ description = "MV Battery Box",
+ tiles = {"technic_mv_battery_box_top.png", "technic_mv_battery_box_bottom.png", "technic_mv_battery_box_side0.png^technic_power_meter"..i..".png",
+ "technic_mv_battery_box_side0.png^technic_power_meter"..i..".png", "technic_mv_battery_box_side0.png^technic_power_meter"..i..".png", "technic_mv_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(),
+ technic_power_machine=1,
+ last_side_shown=0,
+ drop="technic:mv_battery_box",
+ on_construct = function(pos)
+ local meta = minetest.env:get_meta(pos)
+ meta:set_string("infotext", "MV Battery box")
+ meta:set_float("technic_mv_power_machine", 1)
+ meta:set_string("formspec", battery_box_formspec)
+ local inv = meta:get_inventory()
+ inv:set_size("src", 1)
+ inv:set_size("dst", 1)
+ battery_charge = 0
+ max_charge = 300000
+ last_side_shown=0
+ end,
+ can_dig = function(pos,player)
+ 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,
+})
+end
+
+
+MV_nodes_visited = {}
+
+
+minetest.register_abm({
+ nodenames = {"technic:mv_battery_box","technic:mv_battery_box1","technic:mv_battery_box2","technic:mv_battery_box3","technic:mv_battery_box4",
+ "technic:mv_battery_box5","technic:mv_battery_box6","technic:mv_battery_box7","technic:mv_battery_box8"
+ },
+ interval = 1,
+ chance = 1,
+ action = function(pos, node, active_object_count, active_object_count_wider)
+ local meta = minetest.env:get_meta(pos)
+ charge= meta:get_int("battery_charge")
+ max_charge= 300000
+ local i=math.ceil((charge/max_charge)*8)
+ if i>8 then i=8 end
+ j=meta:get_float("last_side_shown")
+ if i~=j then
+ if i>0 then hacky_swap_node(pos,"technic:mv_battery_box"..i)
+ elseif i==0 then hacky_swap_node(pos,"technic:mv_battery_box") end
+ meta:set_float("last_side_shown",i)
+ end
+
+--loading 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
+ item_max_charge=power_tools[i].max_charge
+ end
+ end
+
+ if item_max_charge then
+ load1=src_meta["charge"]
+ load_step=4000
+ 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("battery_charge",charge)
+ end
+ end
+
+-- dischargin 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
+ item_max_charge=power_tools[i].max_charge
+ end
+ end
+
+ if item_max_charge then
+ local load1=src_meta["charge"]
+ load_step=4000
+ 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
+ end
+ end
+
+ meta:set_int("battery_charge",charge)
+
+ local load = math.floor((charge/300000) * 100)
+ meta:set_string("formspec",
+ mv_battery_box_formspec..
+ "image[1,1;1,2;technic_power_meter_bg.png^[lowpart:"..
+ (load)..":technic_power_meter_fg.png]"
+ )
+
+ 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("mv_cablelike")~=1 then return end
+
+ local MV_nodes = {}
+ local PR_nodes = {}
+ local RE_nodes = {}
+
+ MV_nodes[1]={}
+ MV_nodes[1].x=pos1.x
+ MV_nodes[1].y=pos1.y
+ MV_nodes[1].z=pos1.z
+ MV_nodes[1].visited=false
+
+table_index=1
+ repeat
+ check_MV_node (PR_nodes,RE_nodes,MV_nodes,table_index)
+ table_index=table_index+1
+ if MV_nodes[table_index]==nil then break end
+ until false
+
+
+local pos1={}
+i=1
+ repeat
+ if PR_nodes[i]==nil then break end -- gettin power from all connected producers
+ pos1.x=PR_nodes[i].x
+ pos1.y=PR_nodes[i].y
+ pos1.z=PR_nodes[i].z
+ local meta1 = minetest.env:get_meta(pos1)
+ local internal_EU_buffer=meta1:get_float("internal_EU_buffer")
+ if charge<max_charge then
+ charge_to_take=1000
+ 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
+ i=i+1
+ until false
+
+if charge>max_charge then charge=max_charge end
+
+i=1
+ repeat
+ if RE_nodes[i]==nil then break end
+ pos1.x=RE_nodes[i].x -- loading all conected machines buffers
+ pos1.y=RE_nodes[i].y
+ pos1.z=RE_nodes[i].z
+ local meta1 = minetest.env:get_meta(pos1)
+ 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=1000
+ 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;
+
+ i=i+1
+ until false
+ charge=math.floor(charge)
+ charge_string=tostring(charge)
+ meta:set_string("infotext", "Battery box: "..charge_string.."/"..max_charge);
+ meta:set_int("battery_charge",charge)
+
+end
+})
+
+function add_new_MVcable_node (MV_nodes,pos1)
+local i=1
+ repeat
+ if MV_nodes[i]==nil then break end
+ if pos1.x==MV_nodes[i].x and pos1.y==MV_nodes[i].y and pos1.z==MV_nodes[i].z then return false end
+ i=i+1
+ until false
+MV_nodes[i]={}
+MV_nodes[i].x=pos1.x
+MV_nodes[i].y=pos1.y
+MV_nodes[i].z=pos1.z
+MV_nodes[i].visited=false
+return true
+end
+
+function check_MV_node (PR_nodes,RE_nodes,MV_nodes,i)
+ local pos1={}
+ pos1.x=MV_nodes[i].x
+ pos1.y=MV_nodes[i].y
+ pos1.z=MV_nodes[i].z
+ MV_nodes[i].visited=true
+ new_node_added=false
+
+ pos1.x=pos1.x+1
+ check_MV_node_subp (PR_nodes,RE_nodes,MV_nodes,pos1)
+ pos1.x=pos1.x-2
+ check_MV_node_subp (PR_nodes,RE_nodes,MV_nodes,pos1)
+ pos1.x=pos1.x+1
+
+ pos1.y=pos1.y+1
+ check_MV_node_subp (PR_nodes,RE_nodes,MV_nodes,pos1)
+ pos1.y=pos1.y-2
+ check_MV_node_subp (PR_nodes,RE_nodes,MV_nodes,pos1)
+ pos1.y=pos1.y+1
+
+ pos1.z=pos1.z+1
+ check_MV_node_subp (PR_nodes,RE_nodes,MV_nodes,pos1)
+ pos1.z=pos1.z-2
+ check_MV_node_subp (PR_nodes,RE_nodes,MV_nodes,pos1)
+ pos1.z=pos1.z+1
+return new_node_added
+end
+
+function check_MV_node_subp (PR_nodes,RE_nodes,MV_nodes,pos1)
+meta = minetest.env:get_meta(pos1)
+if meta:get_float("mv_cablelike")==1 then new_node_added=add_new_MVcable_node(MV_nodes,pos1) end
+for i in ipairs(MV_machines) do
+ if minetest.env:get_node(pos1).name == MV_machines[i].machine_name then
+ if MV_machines[i].machine_type == "PR" then
+ new_node_added=add_new_MVcable_node(PR_nodes,pos1)
+ end
+ if MV_machines[i].machine_type == "RE" then
+ new_node_added=add_new_MVcable_node(RE_nodes,pos1)
+ end
+ end
+end
+end
+
--
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