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    ... plus additional parameters

    MoKaLuxMoKaLux Member
    edited September 2020 in General questions
    I have a question please :)
    I found how to use ... in a function, my question is can we pass additional params?
    For example I have my base class:
    LF_Dynamic_Character_Base = Core.class(Sprite)
function LF_Dynamic_Character_Base:init(
		xworld,
		xspritesheet, xname, xcols, xrows,
		xscalex, xscaley,
		xanchorx, xanchory, xoffsetx, xoffsety,
		xdensity, xrestitution, xfriction,
		xBIT, xCOLBIT, xNAME)
    Then I can do this:
    LF_Dynamic_Player = Core.class(LF_Dynamic_Character_Base)
 
function LF_Dynamic_Player:init(...)
    But this doesn't work with additional parameters:
    LF_Dynamic_Bat = Core.class(LF_Dynamic_Character_Base)
 
function LF_Dynamic_Bat:init(..., xposx, xposy, xmove)
    Thank you for your help.
    my growING GIDEROS github repositories: https://github.com/mokalux?tab=repositories
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    Comments

    • antixantix Member
      edited September 2020
      Yloinks, that is a lot! When you have so many options it is generally better to pass them as a table..
      local options = {
	xworld = myWorld,
	xspritesheet = someSpriteSheet,
	xname = 'abc',
	xcols = 0,
	xrows = 0,
	xscalex = 0,
	xscaley = 0,
	xanchorx = 0,
	xanchory = 0,
	xoffsetx = 0,
	xoffsety = 0,
	xdensity = 0,
	xrestitution = 0,
	xfriction = 0,
	xBIT = 0,
	xCOLBIT = 0,
	xNAM = 0,
}
 
LF_Dynamic_Character_Base(options)

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    • MoKaLuxMoKaLux Member
      edited September 2020
      hello there antix :)

      I do as you showed but not in this case.

      I build my levels based on Tiled (as you told me before :) )
      -- ***************
-- PLAYER & OTHERS
-- ***************
if objectName == "player" then
	self.player = LF_Dynamic_Player.new(
		xworld,
		"gfx/player/caverman_97x71.png", "player", 6, 7,
		1, 1,
		nil, nil, 0, -5,
		1, nil, nil,
		G_BITPLAYER, playercollisions, G_PLAYER)
	self.player.body:setPosition(object.x, object.y)
	self.mg:addChild(self.player)
elseif objectName:sub(1,3) == "bat" then
	local nme01
	if objectName == "bat01" then
		nme01 = LF_Dynamic_Bat.new(xworld,
			"gfx/nmes/sprite-sheet-121x89.png", objectName, 5, 4,
			1, 1,
			nil, nil, nil, nil,
			1, nil, nil,
			G_BITENEMY, nmecollisions, G_ENEMY01,
			object.x, object.y, 1) -- *** EXTRA PARAMS TO BAT ***
	end
	nme01.body:setPosition(object.x, object.y)
	nme01:joint(object.x, object.y)
	self.mg:addChild(nme01)
	xworld.bats[nme01] = nme01.body
      The bat enemy has some extra params which I'd like to incorporate using (..., extra1, extra2). Is this possible?
      my growING GIDEROS github repositories: https://github.com/mokalux?tab=repositories
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    • rrraptorrrraptor Member
      edited September 2020 Accepted Answer
      ?
      local Foo = Core.class(Sprite)
 
function Foo:init(a,b)
	self.a = a
	self.b = b
end
 
local Bar = Core.class(Foo, function(c,d,...) return ... end) --< "..." must be at the end
 
function Bar:init(c,d)
	self.c = c
	self.d = d
end
 
local foo = Foo.new(1,2)
print(foo.a, foo.b) --< 1, 2
local bar = Bar.new(3,4, 1,2) --< 1, 2, 3, 4
print(bar.a, bar.b, bar.c, bar.d)

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      SuperShape | Nice blured shapes with shadows | Simple button pad | Simple layer class | Simple UI library | 2D camera lib | Color picker | FPS graph | Dear ImGui | cute_c2
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