Difference between revisions of "Os.timer"
From GiderosMobile
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=== Return values === | === Return values === | ||
'''Returns''' (number) precise time in seconds relative to some arbitrary point<br/> | '''Returns''' (number) precise time in seconds relative to some arbitrary point<br/> | ||
| + | |||
| + | === Example === | ||
| + | <source lang="lua"> | ||
| + | local function onEnterFrame(event) | ||
| + | -- get the precise timer | ||
| + | local t = os.timer() | ||
| + | |||
| + | -- animate r,g,b multipliers of color transform | ||
| + | local r = (math.sin(t * 0.5 + 0.3) + 1) / 2 | ||
| + | local g = (math.sin(t * 0.8 + 0.2) + 1) / 2 | ||
| + | local b = (math.sin(t * 1.3 + 0.6) + 1) / 2 | ||
| + | |||
| + | -- set color transform | ||
| + | bitmap:setColorTransform(r, g, b, 1) | ||
| + | |||
| + | -- update the positions of dots | ||
| + | reddot:setX(90 + r * 280) | ||
| + | greendot:setX(90 + g * 280) | ||
| + | bluedot:setX(90 + b * 280) | ||
| + | end | ||
| + | </source> | ||
{{Os}} | {{Os}} | ||
Revision as of 20:27, 19 February 2023
Available since: Gideros 2011.6
Class: os
Description
Returns precise time in seconds relative to some arbitrary point.
(number) = os.timer()
Return values
Returns (number) precise time in seconds relative to some arbitrary point
Example
local function onEnterFrame(event)
-- get the precise timer
local t = os.timer()
-- animate r,g,b multipliers of color transform
local r = (math.sin(t * 0.5 + 0.3) + 1) / 2
local g = (math.sin(t * 0.8 + 0.2) + 1) / 2
local b = (math.sin(t * 1.3 + 0.6) + 1) / 2
-- set color transform
bitmap:setColorTransform(r, g, b, 1)
-- update the positions of dots
reddot:setX(90 + r * 280)
greendot:setX(90 + g * 280)
bluedot:setX(90 + b * 280)
end
