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Binoculars: Update to use 'zoom_fov' player property 

In survival mode, zoom is disabled, the binoculars item is needed to
allow a zoom with a 10 degree FOV, realistic for compact binoculars.

Creative mode or per-player creative privilege allows a zoom with a
15 degree field of view (the default MT engine zoom FOV).
This commit is contained in:
paramat 2017-11-26 04:40:59 +00:00 committed by paramat
parent ed83e30d68
commit 2824e4bb7c
2 changed files with 17 additions and 12 deletions
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10
mods/binoculars/README.txt
View File

@ -24,12 +24,14 @@ O_O
Usage
-----
In survival mode, use of zoom requires the binoculars item in your inventory.
In survival mode, use of zoom requires the binoculars item in your inventory,
they will allow a 10 degree field of view.
It can take up to 5 seconds for adding to or removal from inventory to have an
effect, however to instantly allow the use of zoom 'use' (leftclick) the item.
effect, however to instantly allow the use of this zoom 'use' (leftclick) the
item.
Zoom is automatically allowed in creative mode and for any player with the
'creative' privilege.
Zoom with a field of view of 15 degrees is automatically allowed in creative
mode and for any player with the 'creative' privilege.
The 'binoculars.update_player_property()' function is global so can be
redefined by a mod for alternative behaviour.

19
mods/binoculars/init.lua
View File

@ -4,12 +4,8 @@ binoculars = {}
-- Detect creative mod
local creative_mod = minetest.get_modpath("creative")
-- Cache creative mode setting as fallback if creative mod not present
local creative_mode_cache = minetest.settings:get_bool("creative_mode")
@ -20,11 +16,18 @@ function binoculars.update_player_property(player)
local creative_enabled =
(creative_mod and creative.is_enabled_for(player:get_player_name())) or
creative_mode_cache
local new_zoom_fov = 0
if player:get_inventory():contains_item(
"main", "binoculars:binoculars") then
new_zoom_fov = 10
elseif creative_enabled then
new_zoom_fov = 15
end
-- Only set property if necessary to avoid player mesh reload
local new_can_zoom = creative_enabled or player:get_inventory():contains_item(
"main", "binoculars:binoculars")
if player:get_properties().can_zoom ~= new_can_zoom then
player:set_properties({can_zoom = new_can_zoom})
if player:get_properties().zoom_fov ~= new_zoom_fov then
player:set_properties({zoom_fov = new_zoom_fov})
end
end