Releases · straker/kontra

Migrates the seedRand and randInt functions to a new PRNG module. In so doing this breaks how seedRand and randInt works. It also updated the PRNG algorithm to use SplitMix32 instead of LCG and the string hashing algorithm from xfnv1a to MurmurHash3.

This release also updates TileEngine to support spacing property and renames the frameMargin property to margin and updates it to mean margin around the tilesheet instead of margin between each frame.

Breaking Changes

seedRand: no longer returns rand as a function but instead modifies the seed
tileEngine: frameMargin renamed to margin and means margin around the tilesheet

Features

seedRand: also now accepts a string or defaults to the current time if no value is passed
randInt: accepts a function as 3rd parameter which can be used to pass a function that can bias the random number
randInt: uses rand function by default instead of Math.random so is affected by seeding the PRNG
rand: function that returns a seeded random number between 0 and 1
getSeed: function that returns the current random seed value
button,scene: expose the HTML node property
gameObject: add angular velocity and acceleration
tileEngine: support flipped and rotated tiles in Tiled
tileEngine: support the spacing property for the whitespace between frames
button: allow adding the HTMLButton element to a container
tileEngine: add getPosition function

Fixes

gameLoop: prevent zombie frame when start is called twice
gameLoop: emit tick event every update
prevent scrolling page on element focus

Assets 2

27 Jan 03:56

straker

v9.0.0

fe9558e

v9.0.0

The angleToTarget helper class was returning the wrong angle due to an incorrect use of sin and cos, resulting in adding a quarter rotation. This has been fixed which causes a breaking change from the value that was returned before (no longer adds a quarter rotation).

Breaking Changes

helpers: return correct angle from angleToTarget

Features

vector: add direction function
vector: add set function and allow initialize with object
text: add text stroke
gamepad: pass buttonName as extra param to gamepad callback
animation: add start and stop functions ,isStopped property

Fixes

tileEngine: Add TileEngineClass to exports
gameObject: clamp opacity between 0 and 1
keyboard: allow keyPressed to accept array of keys
vector: handle normalizing zero vector
text: correctly handle string with both newlines and a fixed width
allow objects to be created before init
pointer: correctly track objects when scene/tileEngine camera is moved
tileEngine: prevent negative sx/sy when map size is smaller than canvas size

Assets 2

13 Feb 04:58

straker

v8.0.0

716bb81

v8.0.0

Many properties and functions have been renamed to better align the various APIs and support the new Input wrapper API. Also to support building the library with esbuild all .prototype and .class properties were removed and replaced with the new *Class export (e.g. import { SpriteClass } from 'kontra')

Breaking Changes

removed .prototype and .class properties of each factory export
sprite: removed sx and sy properties from GameObject
keyboard: renamed bindKeys andunbindKeys to onKey and offKey (respectively)
keyboard: renamed keyboard keys up, down, left, right to arrowup, arrowdown, arrowleft, arrowright (respectively)
pointer: removed onPointerDown and onPointerUp and replaced with onPointer (e.g. onPointer('down', callback))
gameObject: removed filterFunction from render
helpers: do not return null on rotated object for collides
scene: rename children, addChild, and removeChild to objects, add, and remove (respectively)

Features

gesture: add swipe and pinch gesture support
gamepad: add gamepad api
input: add input wraper api
button: button can be disabled when created @alfi-s
allow esbuild to tree shake library @anderoonies
tileEngine: add preprocessor support for TileEngine
helpers: add movePoint function
grid: allow setting alignment for individual rows or cols, allow setting children
core: allow contextless environment
tileEngine, gameObject: remove camera from sprite, have tileEngine render all objects
pointer: add offPointer function
scene,helpers: allow scene to sort chlidren. add depthSort helper

Bug Fixes

Text cast value to string when setting Text.text @anderoonies
grid work with colSpan > 2
grid take into account child world width and height
srOnly add clip to sr only style
sprite translate by camera position before rotation
gameObject correctly calculate world position when nested children are rotated
ts fix load and loadData types to accept array