Last Defense--Retro space invaders/Breakout game

[benny hill]

Hi! I thought I'd show off my first LOVE project. I thought about what would happen if you took Space Invaders and mixed it with Breakout. This is what I came up with in around a week of work.

I'm really happy with Love. I also used the HUMP framework and cron.lua (though HUMP now has all the features of cron.lua so I'll be using that in the future).

I did all the artwork myself using a pixel editor. It was a fun little project. It may end up in a games cabinet my college's game dev club has set up, which is the main reason I made the high scores system.

Enjoy!

[coffee]

Very good mashup concept. I liked the artwork too. Also the need of protect the bases reminds me Missile Command. Good work.

[josefnpat]

Am I doing something wrong?

Code: Select all

seppi@seppi7:~/Downloads/love$ love LastDefense.love 
Error: [string "cron.lua"]:80: dt must be a positive number
stack traceback:
	[C]: in function 'assert'
	[string "cron.lua"]:80: in function 'update'
	[string "main.lua"]:49: in function '?'
	[string "hump/gamestate.lua"]:83: in function '?'
	[string "hump/gamestate.lua"]:76: in function 'update'
	[string "boot.lua"]:1: in function <[string "boot.lua"]:1>
	[C]: in function 'xpcall'
AL lib: ALc.c:1818: alcCloseDevice(): deleting 1 Buffer(s)
seppi@seppi7:~/Downloads/love$ love-unstable LastDefense.love 
Error: invader.lua:19: attempt to call method 'setSize' (a nil value)
stack traceback:
	invader.lua:19: in main chunk
	[C]: in function 'require'
	main.lua:14: in main chunk
	[C]: in function 'require'
	[string "boot.lua"]:331: in function <[string "boot.lua"]:227>
	[C]: in function 'xpcall'

[benny hill]

That never happened to me, but it looks like for some reason the update parameter is negative... This was only tested on 0.7.2 though, so maybe that's the problem?

[coffee]

Am I doing something wrong?

Code: Select all

seppi@seppi7:~/Downloads/love$ love LastDefense.love 
Error: [string "cron.lua"]:80: dt must be a positive number
stack traceback:
	[C]: in function 'assert'
	[string "cron.lua"]:80: in function 'update'
	[string "main.lua"]:49: in function '?'
	[string "hump/gamestate.lua"]:83: in function '?'
	[string "hump/gamestate.lua"]:76: in function 'update'
	[string "boot.lua"]:1: in function <[string "boot.lua"]:1>
	[C]: in function 'xpcall'
AL lib: ALc.c:1818: alcCloseDevice(): deleting 1 Buffer(s)
seppi@seppi7:~/Downloads/love$ love-unstable LastDefense.love 
Error: invader.lua:19: attempt to call method 'setSize' (a nil value)
stack traceback:
	invader.lua:19: in main chunk
	[C]: in function 'require'
	main.lua:14: in main chunk
	[C]: in function 'require'
	[string "boot.lua"]:331: in function <[string "boot.lua"]:227>
	[C]: in function 'xpcall'

That only happens to me in 0.8.0 (with less error comment). All runs fine in my OSX 0.7.2 version.

[josefnpat]

Code: Select all

seppi@seppi7:~$ love --version
LOVE 0.7.2 (Game Slave)
seppi@seppi7:~$ love-unstable --version
LOVE 0.8.0 (Rubber Piggy)

It also happens in 0.7.2

[Larsii30]

for my part is it working.
Nice game mix It's fun to play, I think the bullets of the aliens could fly up faster after they hit the player.

Good work.

[Nixola]

Why do EVERYONE ignore PO2_Syndrome T.T

[benny hill]

Why do EVERYONE ignore PO2_Syndrome T.T

Haha, again, this is my first love game, so I didn't spend any time dealing with issues I personally didn't have. I'll be sure to worry about it for my next project.

[josefnpat]

I think I figured out your problem.

I am using an i7-920 and It started working a lot better when I was taxing my system with a lot of stuff in the background.

My system runs the love.update so fast, that it reads dt as zero.

To fix this issue, remove line 80 of cron.lua:

Code: Select all

--  assert(type(dt) == "number" and dt > 0, "dt must be a positive number")