climate_api/lib/api.lua

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2020-04-13 01:55:39 +02:00
local api = {}
api.SHORT_CYCLE = 0.03 -- for particles and fast animations
api.DEFAULT_CYCLE = 0.1 -- for most effect types
api.MEDIUM_CYCLE = 2.0 -- for ressource intensive tasks
api.LONG_CYCLE = 5.0 -- for write operations and skybox changes
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function api.register_weather(name, conditions, effects)
-- TODO: check and sanitize
climate_mod.weathers[name] = {
conditions = conditions,
effects = effects,
active_players = {}
}
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("warning", "[Climate API] Invalid effect handler type: " .. htype)
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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 = api.DEFAULT_CYCLE, timer = 0 }
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end
-- store effect handler
table.insert(climate_mod.effects[name][htype], handler)
end
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
function api.register_abm(config)
local conditions = config.conditions
local action = config.action
local pos_override = config.pos_override
local override = function(pos, node)
local env = climate_mod.trigger.get_position_environment(pos)
if type(pos_override) == "function" then
pos = pos_override(pos)
end
if conditions == nil then
return action(pos, node, env)
end
for condition, goal in pairs(conditions) do
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
config.conditions = nil
config.action = override
minetest.register_abm(config)
end
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return api