Implement sounds, enable start and stop events

lib/api.lua

@@ -2,7 +2,7 @@ local api = {}
 
 api.SHORT_CYCLE		= 0.03	-- for particles and fast animations
 api.DEFAULT_CYCLE	=  0.1	-- for most effect types
-api.MEDIUM_CYCKE	=	 2.0	-- for ressource intensive tasks
+api.MEDIUM_CYCLE	=	 2.0	-- for ressource intensive tasks
 api.LONG_CYCLE		=  5.0	-- for write operations and skybox changes
 
 function api.register_weather(name, conditions, effects)
@@ -17,13 +17,13 @@ end
 function api.register_effect(name, handler, htype)
 	-- check for valid handler types
 	if htype ~= "start" and htype ~= "tick" and htype ~= "stop" then
-		minetest.log("warn", "[Climate API] Invalid effect handler type: " .. htype)
+		minetest.log("warning", "[Climate API] Invalid effect handler type: " .. htype)
 		return
 	end
 	-- create effect handler registry if not existent yet
 	if type(climate_mod.effects[name]) == "nil" then
 		climate_mod.effects[name] = { start = {}, tick = {}, stop = {} }
-		climate_mod.cycles[name] = { timespan = DEFAULT_CYCLE, timer = 0 }
+		climate_mod.cycles[name] = { timespan = api.DEFAULT_CYCLE, timer = 0 }
 	end
 	-- store effect handler
 	table.insert(climate_mod.effects[name][htype], handler)
@@ -33,4 +33,8 @@ function api.set_effect_cycle(name, cycle)
 	climate_mod.cycles[name].timespan = cycle
 end
 
+--[[function api.register_influence(name, func)
+	climate_mod.influences[name] = func
+end]]
+
 return api

lib/influences.lua

@@ -0,0 +1,30 @@
+climate_api.register_influence("heat", function(player)
+	return climate_mod.get_heat(player:get_pos())
+end)
+
+climate_api.register_influence("humidity", function(player)
+	return climate_mod.get_humidity(player:get_pos())
+end)
+
+climate_api.register_influence("windspeed", function(player)
+	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)
+	return climate_mod.state:get_float("wind_x")
+end)
+
+climate_api.register_influence("wind_z", function(player)
+	return climate_mod.state:get_float("wind_z")
+end)
+
+climate_api.register_influence("height", function(player)
+	local ppos = player:get_pos()
+	return ppos.y
+end)
+
+climate_api.register_influence("light", function(player)
+	return minetest.env:get_node_light(player:get_pos(), 0.5)
+end)

lib/main.lua

@@ -16,12 +16,13 @@ minetest.register_globalstep(function(dtime)
 		climate_mod.world.update_status(noise_timer)
 	end
 
+	local previous_effects = climate_mod.current_effects
 	climate_mod.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
 			climate_mod.cycles[name].timer = 0
-			climate_mod.trigger.call_handlers(name, climate_mod.current_effects[name])
+			climate_mod.trigger.call_handlers(name, climate_mod.current_effects[name], previous_effects[name])
 		else
 			climate_mod.cycles[name].timer = climate_mod.cycles[name].timer + dtime
 		end

lib/trigger.lua

@@ -91,10 +91,54 @@ function trigger.get_active_effects()
 	return effects
 end
 
-function trigger.call_handlers(name, effect)
-	if type(effect) == "nil" then return end
-	for _, handler in ipairs(climate_mod.effects[name]["tick"]) do
-		handler(effect)
+function trigger.call_handlers(name, effect, prev_effect)
+	if effect == nil then effect = {} end
+	if prev_effect == nil then prev_effect = {} end
+
+	local starts = {}
+	local has_starts = false
+	local ticks = {current = {}, prev = {}}
+	local has_ticks = false
+	local stops = {}
+	local has_stops = false
+
+	for player, sources in pairs(effect) do
+		if type(prev_effect[player]) ~= "nil" then
+			has_ticks = true
+			ticks.current[player] = sources
+			ticks.prev[player] = prev_effect[player]
+			--prev_effect[player] = nil -- remove any found entries
+		else
+			has_starts = true
+			starts[player] = sources
+		end
+	end
+
+	for player, sources in pairs(prev_effect) do
+		if type(effect[player]) == "nil" then
+			stops[player] = sources
+			has_stops = true
+		end
+	end
+
+	if has_starts then
+		for _, handler in ipairs(climate_mod.effects[name]["start"]) do
+			handler(starts)
+		end
+	end
+
+	if has_ticks then
+		for _, handler in ipairs(climate_mod.effects[name]["tick"]) do
+			handler(ticks.current, ticks.prev)
+		end
+	end
+
+	-- remaining table lists ending effects
+	if has_stops then
+		minetest.log(dump2(name, "AAAAAAAAAAA"))
+		for _, handler in ipairs(climate_mod.effects[name]["stop"]) do
+			handler(stops)
+		end
 	end
 end