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minetest_hudbars
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Hide bar background when max == 0 

The bars are intended to show the ratio between value and max.
For a max of 0 (which implies a value of 0), this implies a value/max
ratio of 0/0, which is undefined. Therefore, for this very special case,
we just hide the bar altogether.
This commit is contained in:
Wuzzy 2015-02-04 21:28:20 +01:00
parent 017b304396
commit e6e8f2d688
1 changed files with 8 additions and 1 deletions
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9
init.lua
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@ -142,6 +142,11 @@ function hud.change_hudbar(player, hudtable, new_value, new_max_value)
hudtable.hudstate[name].value = new_value
hudtable.hudstate[name].max = new_max_value
if hudtable.hudstate[name].hidden == false then
if hudtable.hudstate[name].max == 0 then
player:hud_change(hudtable.hudids[name].bg, "scale", {x=0,y=0})
else
player:hud_change(hudtable.hudids[name].bg, "scale", {x=1,y=1})
end
player:hud_change(hudtable.hudids[name].bar, "number", hud.value_to_barlength(new_value, new_max_value))
player:hud_change(hudtable.hudids[name].text, "text",
tostring(string.format(hudtable.format_string, hudtable.label, new_value, new_max_value))
@ -167,7 +172,9 @@ function hud.unhide_hudbar(player, hudtable)
local value = hudtable.hudstate[name].value
local max = hudtable.hudstate[name].max
player:hud_change(hudtable.hudids[name].icon, "scale", {x=1,y=1})
player:hud_change(hudtable.hudids[name].bg, "scale", {x=1,y=1})
if hudtable.hudstate[name].max == 0 then
player:hud_change(hudtable.hudids[name].bg, "scale", {x=1,y=1})
end
player:hud_change(hudtable.hudids[name].bar, "number", hud.value_to_barlength(value, max))
player:hud_change(hudtable.hudids[name].text, "text", tostring(string.format(hudtable.format_string, hudtable.label, value, max)))
hudtable.hudstate[name].hidden = false