Testing accelerometer

Physics
#1

Basically i tied the gravity of my game to an acelerometer event.
Does anyone know a way to test the correct functionality with the simulator?
Cause the “shake” command is not what I am searching for.
Now im stuck with the a static game and i have no clue if it works or not
because i cant tilt the computer to create an acceleration obviously :laughing:

thanks in advance to anyone who will take time to reply

#2

In general simulator on apple is better than simulator on windows (more interactive) … but I’m not sure if what are asking for is doable or not …

You can do a special build that stores the event readings in a file that you can send to yourself to calibrate your work based on the readings … or just show the values on the screen

1 Like
#3

Live building is the best solution:
https://docs.coronalabs.com/guide/distribution/liveBuild/index.html

…or, if you want to be more “old school”:
Use the key event to simulate the axes variance, but then you’ll need to tune the sensitivity to match the values fired by the accelerometer.

#4

thanks, now another problem came up.
I want the gravity to activate itself after a 30degree phone tilt.
Works in every direction but not on the negative x axis (right side tilt)
Anyone knows a fix?

this is the code i made

-- Set up display and physics

local physics = require("physics")

physics.start()

-- Create a box object

local box = display.newRect(display.contentCenterX, 100, 50, 50)

box:setFillColor(1, 0.5, 0.5)

-- Enable physics for the box

physics.addBody(box, "dynamic", { density = 1.0, friction = 0.3, bounce = 0 })

-- Function to calculate angle in degrees from x and y gravity values

local function calculateTiltAngle(xGravity, yGravity)

    return math.deg(math.atan2(yGravity, xGravity))

end

-- Function to handle accelerometer updates

local function onAccelerate(event)

    local xGravity = event.xGravity

    local yGravity = event.yGravity

    -- Calculate tilt angle in degrees

    local tiltAngle = calculateTiltAngle(xGravity, yGravity)

    -- Apply gravity only if tilt angle is greater than 30 degrees or less than -30 degrees

    if math.abs(tiltAngle) > 30 then

        physics.setGravity(xGravity * 9.8, -yGravity * 9.8)

    else

        physics.setGravity(0, 0)  -- No gravity if tilt angle is within -30 to 30 degrees

    end

end

-- Set accelerometer interval and listen for changes

system.setAccelerometerInterval(60)  -- Update interval in Hz 

Runtime:addEventListener("accelerometer", onAccelerate)