LÖVE

dusoft wrote: ↑Sat Dec 23, 2023 2:02 pm Hello,

I am using this camera library that has a shake support:
https://github.com/a327ex/STALKER-X#shake

Azzla wrote: ↑Sun Dec 24, 2023 8:02 pm In case you still want to use hump.camera, I happen to have an old implementation of screen shake using that library alongside hump.timer:

Code: Select all

local cameraFile = require('libs/hump/camera')
cam = cameraFile()
local camSmoothing = cam.smooth.damped(8)
local camTimer = globalTimer.new()
local cameraShaking = false
local magnitude = 1

function cameraHandler(dt, x, y, zoom)
  camTimer:update(dt)
  local wvw, wvh = screen_width/(2*zoom), screen_height/(2*zoom)
  cam:lockPosition(x, y, camSmoothing)
  
  --screen shake
  if cameraShaking then
    cam.x = cam.x + love.math.random(-magnitude,magnitude)
    cam.y = cam.y + love.math.random(-magnitude,magnitude)
  end  
  
  --lock camera to map boundaries
  cam.x = math.max(cam.x, wvw)
  cam.x = math.min(cam.x, map_width - wvw)
  cam.y = math.max(cam.y, wvh)
  cam.y = math.min(cam.y, map_height - wvh)
end

function screenShake(duration, mag)
  magnitude = mag
  cameraShaking = true
  camTimer:after(duration, function() cameraShaking = false end)
end

This code is old and not perfect but it works. Just call the 'screenShake' function with a duration and magnitude wherever you want it (e.g. when the player is damaged) and cameraHandler must be in your update callstack. You may have to do some patching on the variables and such to make it work in your game, of course.