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Randomly Generated Images Not Drawing
Posted: Sat May 04, 2013 7:54 am
by kylewatson98
I am working on a project and I have came across a bug but I don't know how to fix it :/ Take a look:
Code: Select all
clouds = {}
clouds.__index = clouds
function clouds.init()
local cld = {}
setmetatable(cld, clouds)
cld.batch = {}
for i=1, 9 do
table.insert(cld.batch, {love.graphics.newImage("graphics/cloud"..math.random(3)..".png"), math.random(width - 32), (i - 1)*1.92})
end
cld.v = 1
return cld
end
function clouds:draw()
love.graphics.setColor(255,255,255,255)
for i=1, #self.batch do
love.graphics.draw(self.batch[i][1], self.batch[i][2], self.batch[i][3])
end
end
function clouds:update(dt)
for i=1, #self.batch do
self.batch[i][3] = self.batch[i][3] + self.v * 20
if self.batch[i][3] < -16 then
self.batch[i][3] = height
self.batch[i][2] = math.random(width - 32)
self.batch[i][1] = love.graphics.newImage("graphics/cloud"..math.random(3)..".png")
end
end
if self.v < 10 then
self.v = self.v + dt
end
end
My canvas is scaled 8x8 and what I am trying to happen is the image to load up randomly spread down the height of the screen, they travel upwards until off the screen to then change image and start from the bottom again. I have passed all the right functions into the callback functions but I still don't know whats wrong.
Please help me. Thanks in advance, Kyle.
Re: Randomly Generated Images Not Drawing
Posted: Sat May 04, 2013 8:11 am
by Robin
Could you explain what
does happen?
Also, in the future
upload a .love.
Re: Randomly Generated Images Not Drawing
Posted: Sat May 04, 2013 8:25 am
by kylewatson98
Like it clearly states in the title, the randomly generated images do not show up...
I will just upload my give my main.lua code because that is the only thing that uses this class.
Code: Select all
function love.load()
require "class/whale"
require "class/clouds"
require "class/cut1"
require "class/speechB"
height = 75
width = 100
love.graphics.setLine(1, "rough")
love.graphics.setBackgroundColor(130, 220, 255)
love.graphics.setDefaultImageFilter("nearest", "nearest")
love.graphics.setFont(love.graphics.newImageFont("graphics/font.png", " abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.,!?-+/():;%&`'*#=[]\""))
whale = whale:init()
clouds = clouds:init()
cut1 = cut1:init()
speechB = speechB:init()
end
function love.draw()
love.graphics.scale(8, 8)
whale:draw()
clouds:draw()
cut1:draw()
speechB:draw()
love.graphics.print(love.timer.getFPS(), 1, 1, 0, 0.125, 0.125)
end
function love.update(dt)
whale:update(dt)
clouds:update(dt)
--cut1:update(dt)
end
function love.keyreleased(k)
whale:keypressed(k)
end
Re: Randomly Generated Images Not Drawing
Posted: Sat May 04, 2013 9:00 am
by Robin
If you upload a .love, both the probability someone helps you is greatly increased and the average time before someone helps you is greatly reduced.
I've tried to find the solution, but without a .love I cannot do more.
Re: Randomly Generated Images Not Drawing
Posted: Sun May 05, 2013 10:33 am
by kylewatson98
Re: Randomly Generated Images Not Drawing
Posted: Sun May 05, 2013 12:32 pm
by Zeliarden
Yo!
You are drawning the clouds outside of the screen
change the code
Code: Select all
self.batch[i][3] = self.batch[i][3] + self.v * 20
to
Code: Select all
self.batch[i][2] = self.batch[i][2] + self.v
for moving clouds
I recommended that you only use love.graphics.newImage once per image
something like:
Code: Select all
cloud[1] = love.graphics.newImage("graphics/cloud1.png")
cloud[2] = love.graphics.newImage("graphics/cloud2.png")
cloud[3] = love.graphics.newImage("graphics/cloud3.png")
...
self.batch[i][1] = cloud[math.random(3)]
Re: Randomly Generated Images Not Drawing
Posted: Sun May 05, 2013 2:16 pm
by kylewatson98
Thanks a bunch
Also great idea, just a little more efficient
