Add new textures, tweak effects, add fog and freezing of river water

abms/ice.lua

@@ -0,0 +1,60 @@
+if not regional_weather.settings.ice
+or not minetest.get_modpath("default")
+or default.node_sound_glass_defaults == nil
+then return end
+
+local BLOCK_NAME = "regional_weather:ice"
+
+minetest.register_node(BLOCK_NAME, {
+	tiles = {"(default_ice.png^[colorize:#ffffff:50)^[opacity:200"},
+	paramtype = "light",
+	groups = {cracky = 3, cools_lava = 1, slippery = 3, dig_immediate = 2},
+	sounds = default.node_sound_glass_defaults(),
+	use_texture_alpha = true,
+	drop = "",
+	on_destruct = function(pos)
+		-- asynchronous to avoid destruction loop
+		minetest.after(0, function(pos)
+			if minetest.get_node(pos).name ~= "air" then return end
+			minetest.set_node(pos, { name = "default:river_water_source" })
+		end, pos)
+	end
+})
+
+climate_api.register_abm({
+	label			= "freeze river water",
+	nodenames = { "default:river_water_source" },
+	neighbors	= { "air" },
+	interval	= 10,
+	chance		= 2,
+
+	 conditions	= {
+		 min_height		= regional_weather.settings.min_height,
+		 max_height		= regional_weather.settings.max_height,
+		 max_heat			= 25,
+		 daylight			= 15
+	 },
+
+	 action = function (pos, node, env)
+		 minetest.set_node(pos, { name = BLOCK_NAME })
+	 end
+})
+
+climate_api.register_abm({
+	label			= "unfreeze river water",
+	nodenames = { BLOCK_NAME },
+	neighbors	= { "air" },
+	interval	= 15,
+	chance		= 4,
+
+	 conditions	= {
+		 min_height		= regional_weather.settings.min_height,
+		 max_height		= regional_weather.settings.max_height,
+		 min_heat			= 40,
+		 daylight			= 15
+	 },
+
+	 action = function (pos, node, env)
+		 minetest.set_node(pos, { name = "default:river_water_source" })
+	 end
+})