mirror of
https://git.minetest.land/MineClone2/MineClone2.git
synced 2024-08-20 22:14:16 +02:00
235 lines
6.3 KiB
Lua
235 lines
6.3 KiB
Lua
---
|
|
--- Copyright 2023, Michieal.
|
|
--- License: GPL3. (Default Mineclone2 License)
|
|
--- Created by michieal.
|
|
--- DateTime: 12/2/23 5:47 AM
|
|
---
|
|
|
|
-- Locals (and cached)
|
|
local DEBUG = false -- debug constant for troubleshooting.
|
|
local pairs = pairs
|
|
|
|
-- Globals
|
|
mcl_fovapi = {}
|
|
|
|
mcl_fovapi.registered_modifiers = {}
|
|
mcl_fovapi.applied_modifiers = {}
|
|
|
|
minetest.register_on_joinplayer(function(player)
|
|
local player_name = player:get_player_name()
|
|
|
|
-- initialization
|
|
mcl_fovapi.applied_modifiers[player_name] = {}
|
|
end)
|
|
minetest.register_on_leaveplayer(function(player)
|
|
local player_name = player:get_player_name()
|
|
|
|
-- handle clean up
|
|
mcl_fovapi.applied_modifiers[player_name] = nil
|
|
end)
|
|
|
|
function mcl_fovapi.register_modifier(def)
|
|
if type(def.name) ~= "string" then
|
|
error("Modifier name must be a string")
|
|
end
|
|
if type(def.fov_factor) ~= "number" then
|
|
error("FOV factor must be a number")
|
|
end
|
|
if type(def.time) ~= "number" then
|
|
error("Transition time must be a number")
|
|
end
|
|
if def.reset_time ~= nil and type(def.reset_time) ~= "number" then
|
|
error("Reset time, if provided, must be a number")
|
|
end
|
|
|
|
if def.on_start ~= nil and type(def.on_start) ~= "function" then
|
|
error("Callback on_start must be a function")
|
|
end
|
|
if def.on_end ~= nil and type(def.on_end) ~= "function" then
|
|
error("Callback on_end must be a function")
|
|
end
|
|
|
|
local mdef = {}
|
|
|
|
mdef.fov_factor = def.fov_factor
|
|
mdef.time = def.time
|
|
mdef.reset_time = def.reset_time or def.time
|
|
|
|
if def.is_multiplier == false then mdef.is_multiplier = false
|
|
else mdef.is_multiplier = true end
|
|
if def.exclusive == true then mdef.exclusive = true
|
|
else mdef.exclusive = false end
|
|
|
|
mdef.on_start = def.on_start
|
|
mdef.on_end = def.on_end
|
|
|
|
if DEBUG then
|
|
minetest.log("FOV::Modifier Definition Registered:\n" .. dump(def))
|
|
end
|
|
|
|
mcl_fovapi.registered_modifiers[def.name] = mdef
|
|
|
|
end
|
|
|
|
minetest.register_on_respawnplayer(function(player)
|
|
mcl_fovapi.remove_all_modifiers(player)
|
|
end)
|
|
|
|
function mcl_fovapi.apply_modifier(player, modifier_name, time_override)
|
|
if not player or not modifier_name then
|
|
return
|
|
end
|
|
if mcl_fovapi.registered_modifiers[modifier_name] == nil then
|
|
return
|
|
end
|
|
local player_name = player:get_player_name()
|
|
if mcl_fovapi.applied_modifiers and mcl_fovapi.applied_modifiers[player_name] and mcl_fovapi.applied_modifiers[player_name][modifier_name] then
|
|
return
|
|
end
|
|
|
|
for k, _ in pairs(mcl_fovapi.applied_modifiers[player_name]) do
|
|
if mcl_fovapi.registered_modifiers[k].exclusive == true then return end
|
|
end
|
|
|
|
local modifier = mcl_fovapi.registered_modifiers[modifier_name]
|
|
if modifier.on_start then
|
|
modifier.on_start(player)
|
|
end
|
|
|
|
mcl_fovapi.applied_modifiers[player_name][modifier_name] = true -- set the applied to be true.
|
|
|
|
if DEBUG then
|
|
minetest.log("FOV::Player Applied Modifiers :" .. dump(mcl_fovapi.applied_modifiers[player_name]))
|
|
end
|
|
|
|
if DEBUG then
|
|
minetest.log("FOV::Modifier applied to player:" .. player_name .. " modifier: " .. modifier_name)
|
|
end
|
|
|
|
local time = time_override or modifier.time
|
|
-- modifier apply code.
|
|
if modifier.exclusive == true then
|
|
-- if exclusive, reset the player's fov, and apply the new fov.
|
|
if modifier.is_multiplier then
|
|
player:set_fov(0, false, 0)
|
|
end
|
|
player:set_fov(modifier.fov_factor, modifier.is_multiplier, time)
|
|
else
|
|
-- not exclusive? let's apply it in the mix.
|
|
local fov_factor, is_mult = player:get_fov()
|
|
if fov_factor == 0 then
|
|
fov_factor = 1
|
|
is_mult = true
|
|
end
|
|
if modifier.is_multiplier or is_mult then
|
|
fov_factor = fov_factor * modifier.fov_factor
|
|
else
|
|
fov_factor = (fov_factor + modifier.fov_factor) / 2
|
|
end
|
|
if modifier.is_multiplier and is_mult then
|
|
player:set_fov(fov_factor, true, time)
|
|
else
|
|
player:set_fov(fov_factor, false, time)
|
|
end
|
|
end
|
|
|
|
end
|
|
|
|
function mcl_fovapi.remove_modifier(player, modifier_name, time_override)
|
|
if not player or not modifier_name then
|
|
return
|
|
end
|
|
|
|
local player_name = player:get_player_name()
|
|
if not mcl_fovapi.applied_modifiers[player_name]
|
|
or not mcl_fovapi.applied_modifiers[player_name][modifier_name] then
|
|
return
|
|
end
|
|
|
|
if DEBUG then
|
|
minetest.log("FOV::Player: " .. player_name .. " modifier: " .. modifier_name .. "removed.")
|
|
end
|
|
|
|
mcl_fovapi.applied_modifiers[player_name][modifier_name] = nil
|
|
local modifier = mcl_fovapi.registered_modifiers[modifier_name]
|
|
|
|
-- check for other fov modifiers, and set them up, or reset to default.
|
|
|
|
local applied = {}
|
|
for k, _ in pairs(mcl_fovapi.applied_modifiers[player_name]) do
|
|
applied[k] = mcl_fovapi.registered_modifiers[k]
|
|
end
|
|
|
|
local time = time_override or modifier.reset_time
|
|
local elem = next
|
|
if elem(applied) == nil then
|
|
player:set_fov(0, false, time)
|
|
return
|
|
end
|
|
local exc = false
|
|
for k, _ in pairs(applied) do
|
|
if applied[k].exclusive == true then
|
|
exc = applied[k]
|
|
break
|
|
end
|
|
end
|
|
|
|
-- handle exclusives.
|
|
if exc ~= false then
|
|
player:set_fov(exc.fov_factor, exc.is_multiplier, 0) -- we want this to be immediate.
|
|
else
|
|
-- handle normal fov modifiers.
|
|
local fov_factor = 1
|
|
local non_multiplier_added = false
|
|
for _, x in pairs(applied) do
|
|
if not x.is_multiplier then
|
|
if non_multiplier_added then
|
|
fov_factor = (fov_factor + x.fov_factor) / 2
|
|
else
|
|
non_multiplier_added = true
|
|
fov_factor = fov_factor * x.fov_factor
|
|
end
|
|
else
|
|
fov_factor = fov_factor * x.fov_factor
|
|
end
|
|
end
|
|
player:set_fov(fov_factor, not non_multiplier_added, time)
|
|
end
|
|
|
|
if mcl_fovapi.registered_modifiers[modifier_name].on_end then
|
|
mcl_fovapi.registered_modifiers[modifier_name].on_end(player)
|
|
end
|
|
end
|
|
|
|
function mcl_fovapi.remove_all_modifiers(player)
|
|
if not player then
|
|
return
|
|
end
|
|
|
|
local player_name = player:get_player_name()
|
|
if DEBUG then
|
|
minetest.log("FOV::Player: " .. player_name .. " modifiers have been reset.")
|
|
end
|
|
|
|
for name, x in pairs(mcl_fovapi.applied_modifiers[player_name]) do
|
|
x = nil
|
|
if mcl_fovapi.registered_modifiers[name].on_end then
|
|
mcl_fovapi.registered_modifiers[name].on_end(player)
|
|
end
|
|
end
|
|
|
|
player:set_fov(0, false, 0)
|
|
end
|
|
|
|
--[[
|
|
Notes:
|
|
set_fov(fov, is_multiplier, transition_time): Sets player's FOV
|
|
|
|
fov: FOV value.
|
|
is_multiplier: Set to true if the FOV value is a multiplier. Defaults to false.
|
|
transition_time: If defined, enables smooth FOV transition. Interpreted as the time (in seconds) to reach target FOV.
|
|
If set to 0, FOV change is instantaneous. Defaults to 0.
|
|
Set fov to 0 to clear FOV override.
|
|
|
|
--]]
|