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Pixel-8

tiny Fantasy Console and JavaScript library for making tiny games or art

Specifications for editor

Display 128x128
Cart 2048 char
Sound ByteBeat
Code JavaScript
Sprite Not Supported

Api

Editor

  • there are 2 types of cartridges
  • by default the cartridge type is 2 but you can change it to first one by adding a "1" in the start of update tab
  1. type 1 is a 32x32 plane that can be used to draw simple animations in 2D and 3D using the col for color output

    x & y are inputs for the square that is getting colored

    sx & sy are the outputs for drawing

    sz is output used for sorting rectangles based on z-index

  2. type 2 gives you full control to the whole screen

Console

  • the console is a javascript environment that will return results and errors of command.

Code tabs

* (init) tab code will just execute once when the cartridge starts running
  • (update) tab code will execute every frame

  • (wave) tab code is used to define the sound context output as a wave using t as input.

    output wave has a sample rate that defines how many times the function should be excuted in 1 second that is defaultly 8000

    it can be changed by adding the sample rate number at start of code and split from the next function with ",".

    the output of wave function is a number from 0 to 256

js library options

Resolution : <body res="n">
disable canvas and styles : <body init="f">
Adding sprite : <img id="sprite">

Colors

RGB to color : rgb2color(r,g,b)
RGB to palette index : rgb2index(palette,r,g,b)

Sprites/Images

Draw a part of image :
spr(i,j,x,y,z)
sspr(x,y,w,h,x1,y1,w1,h1,r)

x,y drawing position

w,h,z drawing width,height,scale

x1,y1/i,j sprite position

w1,h1 sprite width,height

Drawing

camera position : camera(x,y)
set color of a pixel : pset(x,y,color)
get color of a pixel : pget(x,y)

filled shapes

RGB rectangle from palette : pixs(x,y,r,g,b,s,w)

rectfill(x,y,w,h,c)
rectrot(x,y,w,h,c,r)
circfill(x,y,size,c)
trifill(x,y,x1,y1,x2,y2,c)

shapes

line(x,y,x1,y1,c,w)
rect(x,y,w,h)
circ(x,y,s,c,w)

clear screen

cls(color)

Math

Functions :
pow, sqrt, cbrt, sin, asin, cos, acos, tan, atan, atan2, rnd(range), flr, deg(Radians to degrees)

Rotate a point around pivot :
rot(x,y,r,cx,cy)
rot2(x,y,z,a,b,cx,cy,cz)

Scale : scl(x,s,cx) scl2(x,y,s,cx,cy)

Distance between 2 points :
dist3D(v1,v2)
dist2D(v1,v2)

Rotation between 2 points :
lookAt3D(v1,v2)
lookAt2D(v1,v2)

Bayer Matrix Arrays :
pixel8.bayer4[x%4][y%4]
pixel8.bayer8[x%8][y%8]

File :
getFile(url)
copyText(txt)
saveText(txt,name)
saveImage(img,name)

stat(x)

  1. pixel8
  2. canvas
  3. palette
  4. cameraX
  5. cameraY
  6. mouseX
  7. mouseY
  8. mouseStart

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Languages

  • HTML 65.2%
  • JavaScript 30.7%
  • CSS 4.1%