HoraceBury’s gists

HoraceBury / collisionslib.lua

Last active October 30, 2016 08:23

Collisions library modified version of the Corona SDK CollisionFilter sample.

	-- collision library

	local collisionslib = {}

	local categoryNames = {}
	local categoryCounter = 1

	local function newCategory( name )
	categoryNames[ name ] = categoryCounter
	categoryCounter = categoryCounter * 2

HoraceBury / cleanhtml.lua

Created February 14, 2014 13:37

Cleans rich text so that HTML is cleanly removed, p and br tags are reduced to new lines and some special characters are replaced with the text equivelents.

	local t = [[ your html ]]

	-- list of strings to replace (the order is important to avoid conflicts)
	local cleaner = {
	{ "&", "&" }, -- decode ampersands
	{ "", "-" }, -- em dash
	{ "", "'" }, -- right single quote
	{ "", "\"" }, -- left double quote
	{ "", "\"" }, -- right double quote
	{ "", "-" }, -- en dash

HoraceBury / tablelib.lua

Last active May 30, 2023 05:49

Lua table extensions used to improve and expand the table.* library in a simple manner.

	-- table library extensions

	if (dump == nil) then
	dump = function(t)
	print("=============")
	for k,v in pairs(t) do
	print("\t",k,v)
	end
	print("=============")
	end

HoraceBury / utils.lua

Last active April 26, 2022 13:02

Miscellaneous utility functions which help get screen dimensions, extend display operations and some string functions.

	-- utils

	local composer = require("composer")

	local utils = {}

	function dump( ... )
	if (#arg > 1) then
	print("========================DUMP ("..#arg..")========================")
	for i=1, #arg do

HoraceBury / _mathlib.lua

Last active February 27, 2022 12:17

Mathematics functions, including trigonometry. The main file demonstrates the use of the various maths extension functions available in the library. To use this remove the '_' from the filename.

	-- mathlib.lua

	local function dump(tbl)
	print("====================")
	for k,v in pairs(tbl) do
	print(k,v)
	end
	print("====================")
	end

HoraceBury / drawPolygonMain.lua

Last active November 1, 2015 09:01

Draw a polygon by tapping. Move the points. Tap points to remove them. Points go green when concave. Polygon concave/convex status displayed above.

	-- polygon concave

	require("mathlib")

	stage = display.getCurrentStage()

	local text = display.newText{ text="- - -", x=display.contentCenterX, y=100, fontSize=24 }

	lines = display.newGroup()
	lines:insert(display.newGroup())

HoraceBury / arrowlib.lua

Last active July 23, 2020 12:09

Arrow projectile with air drag applied to feathered tail.

	-- arrow test

	-- http://www.iforce2d.net/b2dtut/sticky-projectiles
	-- video: http://screencast.com/t/vcPLSJR6xkIq

	require("mathlib")

	local sWidth, sHeight = display.actualContentWidth, display.actualContentHeight
	local centerX, centerY = sWidth/2, sHeight/2

HoraceBury / rgb.lua

Last active December 19, 2016 04:48

Colours

	-- rgb

	-- Colors referenced from http://www.tayloredmktg.com/rgb/

	local RGB = {
	neoncyan = {16, 174, 239}, -- Neon Cyan
	neonyellow = {231, 228, 37}, -- Neon Yellow
	neonpink = {231, 83, 177}, -- Neon Pink
	neongreen = {4, 228, 37}, -- Neon Green

HoraceBury / iolib.lua

Last active September 15, 2018 11:07

File IO supporting functions to make reading and writing files easier.

	-- io operations

	local json = require("json")
	local lfs = require( "lfs" )

	local iolib = {}

	--[[ FACILITIES ]]--

	local function toDate( timestamp )

HoraceBury / backswipelib.lua

Last active April 18, 2019 12:20

BackSwipe Navigation for Composer

	-- swipe library

	--[[ Libraries ]]--

	local composer = require("composer")

	--[[ Fields ]]--

	local mainstage = display.getCurrentStage()
	local stage = composer.stage

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