Difference between revisions of "love.errhand"
m |
m (Fixed default function) |
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Line 12: | Line 12: | ||
=== The default function used if you don't supply your own. === | === The default function used if you don't supply your own. === | ||
<source lang="lua"> | <source lang="lua"> | ||
+ | local function error_printer(msg, layer) | ||
+ | print((debug.traceback("Error: " .. tostring(msg), 1+(layer or 1)):gsub("\n[^\n]+$", ""))) | ||
+ | end | ||
+ | |||
function love.errhand(msg) | function love.errhand(msg) | ||
msg = tostring(msg) | msg = tostring(msg) |
Revision as of 23:16, 11 August 2013
The error handler, used to display error messages.
Contents
Function
Synopsis
love.errhand( msg )
Arguments
string msg
- The error message.
Returns
Nothing.
Examples
The default function used if you don't supply your own.
local function error_printer(msg, layer)
print((debug.traceback("Error: " .. tostring(msg), 1+(layer or 1)):gsub("\n[^\n]+$", "")))
end
function love.errhand(msg)
msg = tostring(msg)
error_printer(msg, 2)
if not love.graphics or not love.event or not love.graphics.isCreated() then
return
end
-- Load.
if love.audio then love.audio.stop() end
love.graphics.reset()
love.graphics.setBackgroundColor(89, 157, 220)
local font = love.graphics.newFont(14)
love.graphics.setFont(font)
love.graphics.setColor(255, 255, 255, 255)
local trace = debug.traceback()
love.graphics.clear()
local err = {}
table.insert(err, "Error\n")
table.insert(err, msg.."\n\n")
for l in string.gmatch(trace, "(.-)\n") do
if not string.match(l, "boot.lua") then
l = string.gsub(l, "stack traceback:", "Traceback\n")
table.insert(err, l)
end
end
local p = table.concat(err, "\n")
p = string.gsub(p, "\t", "")
p = string.gsub(p, "%[string \"(.-)\"%]", "%1")
local function draw()
love.graphics.clear()
love.graphics.printf(p, 70, 70, love.graphics.getWidth() - 70)
love.graphics.present()
end
draw()
local e, a, b, c
while true do
e, a, b, c = love.event.wait()
if e == "quit" then
return
end
if e == "keypressed" and a == "escape" then
return
end
draw()
end
end
See Also
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