Add smoke particles to cooking recipes as they stand now.

Like pummeling, this should give feedback when players are doing
something right.

docs/issues.txt

@@ -11,6 +11,9 @@ ISSUES: Bugs, Cleanup and Refinements
 
 - Grass growing ABM needs rethunk.
 
+- Healing mechanic sucks.  Try using euclidian distance, raising base
+  rate, tweaking weightings.	
+
 - API Cleanup
 	- Guard minetest, nodecore, etc. against : calls instead of . calls.
 	- Utils

mods/nc_api/fx_smoke.lua

@@ -0,0 +1,34 @@
+-- LUALOCALS < ---------------------------------------------------------
+local minetest, nodecore
+    = minetest, nodecore
+-- LUALOCALS > ---------------------------------------------------------
+
+local smoking = {}
+
+function nodecore.smoke(pos, time)
+	local now = minetest.get_us_time() / 1000000
+	local key = minetest.hash_node_position(pos)
+	local old = smoking[key]
+	if old and now < old.exp then minetest.delete_particlespawner(old.id) end
+	if (not time) or (time <= 0) then
+		smoking[key] = nil
+		return
+	end
+	smoking[key] = {
+		id = minetest.add_particlespawner({
+				texture = "nc_api_smoke.png",
+				collisiondetection = true,
+				amount = 4 * time,
+				time = time,
+				minpos = {x = pos.x - 0.4, y = pos.y - 0.4, z = pos.z - 0.4},
+				maxpos = {x = pos.x + 0.4, y = pos.y + 0.4, z = pos.z + 0.4},
+				minvel = {x = -0.1, y = 0.3, z = -0.1},
+				maxvel = {x = 0.1, y = 0.7, z = 0.1},
+				minexptime = 1,
+				maxexptime = 5,
+				minsize = 1,
+				maxsize = 3	
+			}),
+		exp = now + time
+	}
+end

mods/nc_api/init.lua

@@ -34,6 +34,7 @@ include("util_facedir")
 include("match")
 
 include("fx_digparticles")
+include("fx_smoke")
 
 include("register_limited_abm")
 include("mapgen_shared")

mods/nc_lode/metallurgy.lua

@@ -78,7 +78,7 @@ local function heated(pos)
 	if f >= 3 then return true end
 end
 
-local function timecounter(meta, max, check)
+local function timecounter(meta, max, check, smokepos)
 	if not check then
 		local t = meta:to_table()
 		t.fields.time = nil
@@ -86,8 +86,12 @@ local function timecounter(meta, max, check)
 		return
 	end
 	local t = (meta:get_int("time") or 0) + 1
-	if t >= max then return true end
+	if t >= max then
+		if smokepos then nodecore.smoke(smokepos) end
+		return true
+	end
 	meta:set_int("time", t)
+	if smokepos then nodecore.smoke(smokepos, 1) end
 end
 
 local logadj = math_log(2)
@@ -106,7 +110,8 @@ nodecore.register_limited_abm({
 		action = function(pos, node)
 			local below = {x = pos.x, y = pos.y - 1, z = pos.z}
 			if timecounter(minetest:get_meta(pos), 30,
-				not nodecore.match(below, {walkable = true}) and heated(pos)) then
+				not nodecore.match(below, {walkable = true}) and heated(pos),
+				pos) then
 				nodecore.item_eject(below, modname .. ":prill_hot " .. exporand())
 				minetest:get_meta(pos):from_table({})
 				return nodecore.set_node(pos, {name = "nc_terrain:cobble"})
@@ -138,7 +143,7 @@ nodecore.register_limited_abm({
 					return replacestack(pos, def.metal_alt_annealed, stack)
 				end
 			elseif (def.metal_temper_annealed or def.metal_temper_tempered)
-			and timecounter(stack:get_meta(), 30, heated(pos)) then
+			and timecounter(stack:get_meta(), 30, heated(pos), pos) then
 				return replacestack(pos, def.metal_alt_hot, stack)
 			end
 			return nodecore.stack_set(pos, stack)

mods/nc_optics/cooking.lua

@@ -21,16 +21,20 @@ local function heated(pos)
 	if f >= 3 then return true end
 end
 
-local function timecounter(meta, max, check)
+local function timecounter(meta, max, check, smokepos)
 	if not check then
 		local t = meta:to_table()
-		t.fields.glasscook = nil
+		t.fields.time = nil
 		meta:from_table(t)
 		return
 	end
-	local t = (meta:get_int("glasscook") or 0) + 1
-	if t >= max then return true end
-	meta:set_int("glasscook", t)
+	local t = (meta:get_int("time") or 0) + 1
+	if t >= max then
+		if smokepos then nodecore.smoke(smokepos) end
+		return true
+	end
+	meta:set_int("time", t)
+	if smokepos then nodecore.smoke(smokepos, 1) end
 end
 
 nodecore.register_limited_abm({
@@ -40,7 +44,7 @@ nodecore.register_limited_abm({
 		nodenames = {"nc_terrain:sand_loose"},
 		neighbors = {"group:flame"},
 		action = function(pos, node)
-			if timecounter(minetest:get_meta(pos), 20, heated(pos)) then
+			if timecounter(minetest:get_meta(pos), 20, heated(pos), pos) then
 				minetest:get_meta(pos):from_table({})
 				return minetest.set_node(pos, {name = modname .. ":glass_hot_source"})
 			end