New machine: geothermal generator

electric.lua

@@ -511,6 +511,8 @@ if meta:get_float("cablelike")==1 then new_node_added=add_new_cable_node(LV_node
 if minetest.env:get_node(pos1).name == "technic:solar_panel" then 	new_node_added=add_new_cable_node(PR_nodes,pos1) end		
 if minetest.env:get_node(pos1).name == "technic:generator" then 	new_node_added=add_new_cable_node(PR_nodes,pos1) end		
 if minetest.env:get_node(pos1).name == "technic:generator_active" then 	new_node_added=add_new_cable_node(PR_nodes,pos1) end		
+if minetest.env:get_node(pos1).name == "technic:geothermal" then 	new_node_added=add_new_cable_node(PR_nodes,pos1) end		
+if minetest.env:get_node(pos1).name == "technic:geothermal_active" then 	new_node_added=add_new_cable_node(PR_nodes,pos1) end		
 if minetest.env:get_node(pos1).name == "technic:electric_furnace" then 	new_node_added=add_new_cable_node(RE_nodes,pos1) end		
 if minetest.env:get_node(pos1).name == "technic:electric_furnace_active" then 	new_node_added=add_new_cable_node(RE_nodes,pos1) end		
 if minetest.env:get_node(pos1).name == "technic:tool_workshop" then 	new_node_added=add_new_cable_node(RE_nodes,pos1) end		

geothermal.lua

@@ -0,0 +1,135 @@
+minetest.register_alias("geothermal", "technic:geothermal")
+
+minetest.register_craft({
+	output = 'technic:geothermal',
+	recipe = {
+		{'default:stone', 'default:stone', 'default:stone'},
+		{'moreores:copper_ingot', 'technic:diamond', 'moreores:copper_ingot'},
+		{'default:stone', 'moreores:copper_ingot', 'default:stone'},
+	}
+})
+
+minetest.register_craftitem("technic:geothermal", {
+	description = "Geothermal Generator",
+	stack_max = 99,
+}) 
+
+geothermal_formspec =
+	"invsize[8,4;]"..
+	"image[1,1;1,2;technic_power_meter_bg.png]"..
+	"label[0,0;Geothermal Generator]"..
+	"label[1,3;Power level]"..
+	"list[current_player;main;0,5;8,4;]"
+	
+
+minetest.register_node("technic:geothermal", {
+	description = "Geothermal Generator",
+	tiles = {"technic_geothermal_top.png", "technic_machine_bottom.png", "technic_geothermal_side.png",
+		"technic_geothermal_side.png", "technic_geothermal_side.png", "technic_geothermal_side.png"},
+	paramtype2 = "facedir",
+	groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2},
+	legacy_facedir_simple = true,
+	sounds = default.node_sound_wood_defaults(),
+	technic_power_machine=1,
+	internal_EU_buffer=0;
+	internal_EU_buffer_size=5000;
+	burn_time=0;
+	on_construct = function(pos)
+		local meta = minetest.env:get_meta(pos)
+		meta:set_string("infotext", "Geothermal Generator")
+		meta:set_float("technic_power_machine", 1)
+		meta:set_float("internal_EU_buffer", 0)
+		meta:set_float("internal_EU_buffer_size", 2000)
+		meta:set_string("formspec", geothermal_formspec)	
+		end,	
+
+})
+
+minetest.register_node("technic:geothermal_active", {
+	description = "Geothermal Generator",
+	tiles = {"technic_geothermal_top_active.png", "technic_machine_bottom.png", "technic_geothermal_side.png",
+		"technic_geothermal_side.png", "technic_geothermal_side.png", "technic_geothermal_side.png"},
+	paramtype2 = "facedir",
+	groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2,not_in_creative_inventory=1},
+	legacy_facedir_simple = true,
+	sounds = default.node_sound_wood_defaults(),
+	drop="technic:geothermal",
+	technic_power_machine=1,
+	internal_EU_buffer=0;
+	internal_EU_buffer_size=0;
+})
+
+minetest.register_abm({
+	nodenames = {"technic:geothermal","technic:geothermal_active"},
+	interval = 1,
+	chance = 1,
+	action = function(pos, node, active_object_count, active_object_count_wider)
+
+	local meta = minetest.env:get_meta(pos)
+	local charge= meta:get_float("internal_EU_buffer")
+	local max_charge= meta:get_float("internal_EU_buffer_size")
+	local water_nodes = 0
+	local lava_nodes = 0
+	local production_level=0
+	local load_step=0
+
+	pos.x=pos.x+1
+	local check=check_node_around (pos)
+	if check==1 then water_nodes=water_nodes+1 end
+	if check==2 then lava_nodes=lava_nodes+1 end
+	pos.x=pos.x-2
+	check=check_node_around (pos)
+	if check==1 then water_nodes=water_nodes+1 end
+	if check==2 then lava_nodes=lava_nodes+1 end
+	pos.x=pos.x+1
+	pos.z=pos.z+1
+	check=check_node_around (pos)
+	if check==1 then water_nodes=water_nodes+1 end
+	if check==2 then lava_nodes=lava_nodes+1 end
+	pos.z=pos.z-2
+	check=check_node_around (pos)
+	if check==1 then water_nodes=water_nodes+1 end
+	if check==2 then lava_nodes=lava_nodes+1 end
+	pos.z=pos.z+1
+	
+	if water_nodes==1 and lava_nodes==1 then production_level=50 load_step=30 end
+	if water_nodes==2 and lava_nodes==1 then production_level=75 load_step=45 end
+	if water_nodes==1 and lava_nodes==2 then production_level=75 load_step=45 end
+	if water_nodes==2 and lava_nodes==2 then production_level=100 load_step=60 end
+	if water_nodes==3 and lava_nodes==1 then production_level=25 load_step=15 end
+	if water_nodes==1 and lava_nodes==3 then production_level=25 load_step=15 end
+
+        if production_level>0 then
+		if charge+load_step>max_charge then
+		load_step=max_charge-charge
+		end
+		if load_step>0 then 
+		charge=charge+load_step
+		meta:set_float("internal_EU_buffer",charge)
+		end
+	end
+
+	local load = math.floor((charge/max_charge)*100)
+	meta:set_string("formspec",
+				"invsize[8,4;]"..
+				"image[1,1;1,2;technic_power_meter_bg.png^[lowpart:"..
+						(load)..":technic_power_meter_fg.png]"..
+				"label[0,0;Geothermal Generator]"..
+				"label[1,3;Power level]"..
+				"label[4,0;Production at "..tostring(production_level).."%]"
+				)
+				
+	if production_level>0 and minetest.env:get_node(pos).name=="technic:geothermal" then
+		hacky_swap_node (pos,"technic:geothermal_active")
+		return
+	end
+	if production_level==0 then hacky_swap_node (pos,"technic:geothermal") end
+end
+}) 
+
+function check_node_around (pos)
+local node=minetest.env:get_node(pos)
+if node.name=="default:water_source" or node.name=="default:water_flowing"  then return 1 end
+if node.name=="default:lava_source" or node.name=="default:lava_flowing"  then return 2 end	
+return 0
+end

init.lua

@@ -33,6 +33,7 @@ dofile(minetest.get_modpath("technic").."/mining_laser_mk1.lua")
 --dofile(minetest.get_modpath("technic").."/injector.lua")
 dofile(minetest.get_modpath("technic").."/generator.lua")
 dofile(minetest.get_modpath("technic").."/solar_panel.lua")
+dofile(minetest.get_modpath("technic").."/geothermal.lua")
 
 
 function has_locked_chest_privilege(meta, player)