Add influence registry, make sounds fade, add skybox feature detection

ROADMAP.md

@@ -8,7 +8,6 @@
 - Ability to register environment conditions dynamically (like the heat)
 
 ## Planned for first release
-- Improve test_condition function
 - Write helpful README
 - Set effects on player join
 - Improve value structures of particle and skybox effects
@@ -23,7 +22,6 @@
 - Make switches between effects more smooth
 - Adjust size of particle boxes based on player speed
 - Create conditions for time of day, annual progression, biome filters
-- Fork lightning so that it uses skylayer
 - Support for sail boats mod
 
 ## Future Plans & Ideas

ca_effects/skybox.lua

@@ -3,6 +3,7 @@ if not climate_mod.settings.skybox then return end
 local EFFECT_NAME = "climate_api:skybox"
 
 local function set_skybox(player, sky)
+	if not player.get_stars then return end
 	if sky.sky_data ~= nil then
 		player:set_sky(sky.sky_data)
 	end
@@ -21,6 +22,7 @@ local function set_skybox(player, sky)
 end
 
 local function remove_skybox(player)
+	if not player.get_stars then return end
 	player:set_sky({ type = "regular", clouds = true})
 end
 

ca_effects/sound.lua

@@ -1,23 +1,44 @@
 if not climate_mod.settings.sound then return end
 
 local EFFECT_NAME = "climate_api:sound"
+local FADE_DURATION = climate_api.LONG_CYCLE
 
 local handles = {}
+local removables = {}
+local function end_sound(pname, weather, sound)
+	if removables[pname] == nil
+	or removables[pname][weather] == nil then return end
+	local handle = removables[pname][weather]
+	minetest.sound_stop(handle)
+	removables[pname][weather] = nil
+end
+
 local function start_sound(pname, weather, sound)
+	local handle
 	if handles[pname] == nil then handles[pname] = {} end
 	if handles[pname][weather] ~= nil then return end
-	local handle = minetest.sound_play(sound, {
+	if removables[pname] == nil or removables[pname][weather] == nil then
+		handle = minetest.sound_play(sound.name, {
 			to_player = pname,
-		loop = true
+			loop = true,
+			gain = 0
 		})
+	else
+		handle = removables[pname][weather]
+		removables[pname][weather] = nil
+	end
+	minetest.sound_fade(handle, sound.gain / FADE_DURATION, sound.gain)
 	handles[pname][weather] = handle
 end
 
 local function stop_sound(pname, weather, sound)
 	if handles[pname] == nil or handles[pname][weather] == nil then return end
 	local handle = handles[pname][weather]
-	minetest.sound_stop(handle)
+	minetest.sound_fade(handle, -sound.gain / FADE_DURATION, 0)
+	if removables[pname] == nil then removables[pname] = {} end
+	removables[pname][weather] = handle
 	handles[pname][weather] = nil
+	minetest.after(FADE_DURATION, end_sound, pname, weather, sound)
 end
 
 local function start_effect(player_data)
@@ -58,4 +79,4 @@ end
 climate_api.register_effect(EFFECT_NAME, start_effect, "start")
 climate_api.register_effect(EFFECT_NAME, handle_effect, "tick")
 climate_api.register_effect(EFFECT_NAME, stop_effect, "stop")
-climate_api.set_effect_cycle(EFFECT_NAME, climate_api.LONG_CYCLE)
+climate_api.set_effect_cycle(EFFECT_NAME, climate_api.MEDIUM_CYCLE)

init.lua

@@ -30,7 +30,8 @@ climate_mod.settings = {
 	heat						= get_setting_number("heat_base", 0),
 	humidity				= get_setting_number("humidity_base", 0),
 	time_spread			= get_setting_number("time_spread", 1),
-	particle_count	= get_setting_number("particle_count", 1)
+	particle_count	= get_setting_number("particle_count", 1),
+	tick_speed			= get_setting_number("tick_speed", 1)
 }
 
 -- initiate empty registers
@@ -46,6 +47,7 @@ climate_mod.forced_weather = {}
 climate_mod.state = dofile(modpath .. "/lib/datastorage.lua")
 climate_api = dofile(modpath .. "/lib/api.lua")
 climate_api.utility = dofile(modpath .. "/lib/api_utility.lua")
+dofile(modpath .. "/lib/influences.lua")
 climate_api.environment = dofile(modpath .. "/lib/environment.lua")
 --climate_api = dofile(modpath .. "/lib/influences.lua")
 climate_mod.world = dofile(modpath .. "/lib/world.lua")

lib/api.lua

@@ -33,9 +33,9 @@ function api.set_effect_cycle(name, cycle)
 	climate_mod.cycles[name].timespan = cycle
 end
 
---[[function api.register_influence(name, func)
+function api.register_influence(name, func)
 	climate_mod.influences[name] = func
-end]]
+end
 
 function api.register_abm(config)
 	local conditions = config.conditions
@@ -52,19 +52,9 @@ function api.register_abm(config)
 			return action(pos, node, env)
 		end
 
-		minetest.log(dump2(env, "env"))
-		minetest.log(dump2(conditions, "conditions"))
-
 		for condition, goal in pairs(conditions) do
-			local value = env[condition:sub(5)]
-			if condition:sub(1, 4) == "min_" then
-				if type(value) == "nil" or goal > value then return end
-			elseif condition:sub(1, 4) == "max_" then
-				if type(value) == "nil" or goal <= value then return end
-			else
-				value = env[condition]
-				if type(value) == "nil" or goal ~= value then return end
-			end
+			local is_applicable = climate_mod.trigger.test_condition(condition, env, goal)
+			if not is_applicable then return end
 		end
 		return action(pos, node, env)
 	end

lib/environment.lua

@@ -31,13 +31,6 @@ function environment.get_humidity(pos)
 	local biome = minetest.get_humidity(pos)
 	local random = climate_mod.state:get_float("humidity_random");
 	local random_base = climate_mod.state:get_float("humidity_base");
-	--[[for _, player in ipairs(minetest.get_connected_players()) do
-		local pname = player:get_player_name()
-		minetest.chat_send_player(pname, dump2(biome, "biome"))
-		minetest.chat_send_player(pname, dump2(random_base, "random_base"))
-		minetest.chat_send_player(pname, dump2(random, "random"))
-		minetest.chat_send_player(pname, dump2((base + biome * 0.7 + random_base * 0.3) * random, "total"))
-	end]]
 	return (base + biome * 0.7 + random_base * 0.3) * random
 end
 

lib/influences.lua

@@ -1,30 +1,43 @@
-climate_api.register_influence("heat", function(player)
-	return climate_mod.get_heat(player:get_pos())
+climate_api.register_influence("heat", function(pos)
+	return climate_api.environment.get_heat(pos)
 end)
 
-climate_api.register_influence("humidity", function(player)
-	return climate_mod.get_humidity(player:get_pos())
+climate_api.register_influence("humidity", function(pos)
+	return climate_api.environment.get_humidity(pos)
 end)
 
-climate_api.register_influence("windspeed", function(player)
+climate_api.register_influence("biome", function(pos)
+	local data = minetest.get_biome_data(pos)
+	local biome = minetest.get_biome_name(data.biome)
+	return biome
+end)
+
+climate_api.register_influence("windspeed", function(_)
 	local wind_x = climate_mod.state:get_float("wind_x")
 	local wind_z = climate_mod.state:get_float("wind_z")
 	return vector.length({x = wind_x, y = 0, z = wind_z})
 end)
 
-climate_api.register_influence("wind_x", function(player)
+climate_api.register_influence("wind_x", function(_)
 	return climate_mod.state:get_float("wind_x")
 end)
 
-climate_api.register_influence("wind_z", function(player)
+climate_api.register_influence("wind_z", function(_)
 	return climate_mod.state:get_float("wind_z")
 end)
 
-climate_api.register_influence("height", function(player)
-	local ppos = player:get_pos()
-	return ppos.y
+climate_api.register_influence("height", function(pos)
+	return pos.y
 end)
 
-climate_api.register_influence("light", function(player)
-	return minetest.env:get_node_light(player:get_pos(), 0.5)
+climate_api.register_influence("light", function(pos)
+	return minetest.env:get_node_light(pos)
+end)
+
+climate_api.register_influence("daylight", function(pos)
+	return minetest.env:get_node_light(pos, 0.5)
+end)
+
+climate_api.register_influence("time", function(_)
+	return minetest.get_timeofday()
 end)

lib/main.lua

@@ -1,5 +1,5 @@
-local GSCYCLE = 0.03
-local WORLD_CYCLE = 2
+local GSCYCLE = 0.03	* climate_mod.settings.tick_speed
+local WORLD_CYCLE = 2	* climate_mod.settings.tick_speed
 
 local gs_timer = 0
 local world_timer = 0
@@ -20,7 +20,8 @@ minetest.register_globalstep(function(dtime)
 	local current_effects = climate_mod.trigger.get_active_effects()
 
 	for name, effect in pairs(climate_mod.effects) do
-		if climate_mod.cycles[name].timespan < climate_mod.cycles[name].timer + dtime then
+		local cycle = climate_mod.cycles[name].timespan * climate_mod.settings.tick_speed
+		if cycle < climate_mod.cycles[name].timer + dtime then
 			climate_mod.cycles[name].timer = 0
 			climate_mod.current_effects[name] = current_effects[name]
 			climate_mod.trigger.call_handlers(name, current_effects[name], previous_effects[name])

lib/trigger.lua

@@ -4,7 +4,7 @@ function trigger.get_position_environment(pos)
 	local wind_x = climate_mod.state:get_float("wind_x")
 	local wind_z = climate_mod.state:get_float("wind_z")
 
-	local env = {}
+	--[[local env = {}
 	env.pos = pos
 	env.height = pos.y
 	env.wind = vector.new(wind_x, 0, wind_z)
@@ -13,7 +13,11 @@ function trigger.get_position_environment(pos)
 	env.humidity = climate_api.environment.get_humidity(pos)
 	env.time = minetest.get_timeofday()
 	env.date = minetest.get_day_count()
-	env.light = minetest.get_node_light(vector.add(pos, vector.new({x=0,y=1,z=0})), 0.5)
+	env.light = minetest.get_node_light(vector.add(pos, vector.new({x=0,y=1,z=0})), 0.5)]]
+	local env = {}
+	for influence, func in pairs(climate_mod.influences) do
+		env[influence] = func(pos)
+	end
 	return env
 end
 
@@ -24,15 +28,21 @@ function trigger.get_player_environment(player)
 	return env
 end
 
-local function test_condition(condition, env, goal)
+function trigger.test_condition(condition, env, goal)
 	local value = env[condition:sub(5)]
 	if condition:sub(1, 4) == "min_" then
 		return type(value) ~= "nil" and goal <= value
 	elseif condition:sub(1, 4) == "max_" then
 		return type(value) ~= "nil" and goal > value
-	else
-		Minetest.log("warning", "[Climate API] Invalid effect condition")
+	elseif condition:sub(1, 4) == "has_" then
+		if type(value) == "nil" then return false end
+		for _, g in ipairs(goal) do
+			if value == g then return true end
+		end
 		return false
+	else
+		value = env[condition]
+		return type(value) ~= "nil" and goal == value
 	end
 end
 
@@ -45,7 +55,7 @@ local function is_weather_active(player, weather, env)
 		return config.conditions(env)
 	end
 	for condition, goal in pairs(config.conditions) do
-		if not test_condition(condition, env, goal) then
+		if not trigger.test_condition(condition, env, goal) then
 			return false
 		end
 	end

settingtypes.txt

@@ -9,3 +9,4 @@ climate_api_humidity_base (Global base humidity) float 0
 climate_api_time_spread (Regulates how quickly the weather changes) float 1 0.1 10
 climate_api_particle_count (Multiplicator for used particles) float 1 0.1 2
 climate_api_fahrenheit (Show degrees in Fahrenheit instead of Celsius) bool false
+climate_api_tick_speed (Update speed of weather effects) float 1 0.1 10