Added water mist to enhance waterfalls and other water features.

mods/default/functions.lua

@@ -346,3 +346,40 @@ minetest.register_abm({
 	end
 })
 
+--
+-- Water mist 
+--
+
+minetest.register_abm({
+	nodenames = {"default:water_flowing"},
+	neighbors = {"default:water_source"},
+	interval = 5,
+	chance = 1,
+	action = function(pos, node, active_object_count, active_object_count_wider)
+		local posa = {x=pos.x, y=pos.y+1, z=pos.z}
+		local posu = {x=pos.x, y=pos.y-1, z=pos.z}
+		local na =  minetest.get_node(posa).name
+		local nu =  minetest.get_node(posu).name
+		if na == "default:water_flowing" then
+			if nu == "default:water_source" then
+				minetest.add_particlespawner({
+					amount = 100,
+					time = 6,
+					minpos = {x=pos.x-0.5,y=pos.y,z=pos.z-0.5},
+					maxpos = {x=pos.x+0.5,y=pos.y+0.3,z=pos.z+0.5},
+					minvel = {x=-0.6, y=0.3, z=-0.6},
+			 		maxvel = {x=0.6, y=0.6, z=0.6},
+			 		minacc = {x=0, y=-0.1, z=0},
+			  		maxacc = {x=-0.3, y=-0.3, z=-0.3},
+			  		minexptime = 2,
+			  		maxexptime = 2,
+			  		minsize = 5,
+			 		maxsize = 9,
+			 		collisiondetection = true,
+			  		vertical = false,
+			  		texture = "default_water_mist.png",
+				})
+			end
+		end
+	end
+})