PluginLuaRLImage library

Introduction

Rlimage Adds a sane way to access each pixel of image data

Functions

Function	Arguments	Comments
img:clear	([color],[x1],[y1],[x2],[y2])	set whole image or a portion to a particular value
img:invert	([x1],[y1],[x2],[y2])	inverts whole image or a portion
img:marshal	([x1],[y1],[x2],[y2],[funct])	calls funct for each point defined by rect of x1,y1 x2,y2 returns value and allows setting value of each point return nil to terminate early
img:points	([x1],[y1],[x2],[y2],[dx],[dy])	returns iterator function that steps delta-x and delta-y pixels each call returns value of pixel each call but doesn't allow setting to a new value compare to lua pairs method
img:copy	(src,[x1],[y1],[x2],[y2],[w],[h],[clip][operation][clr/funct])	copies all or part of an image straight copy or special operation optionally calls funct for each point defined by rect of x1, y1, w, h and x2, y2, w, h for dest and src images returns value of dst and src and allows setting value of each point return nil to terminate early
img:line	(x1, y1, x2, y2, color)	draws a line
img:ellipse	(x1, y1, x2, y2, color, [fillcolor]	draws an ellipse
rb.new_image	([w], [h])	if width or height omitted screen width/height will be used

Examples

see rlimg.lua in 'plugins/demos/lua_scripts'

-- WilliamWilgus - 02 Aug 2019