Author Topic: Danmaku Time (shmup engine) [v1.2] (update: 2010-08-19) (Read 22895 times)

anonl · « **on:** July 17, 2010, 10:38:00 AM »

Shmup engine, created from scratch in a week. Released: July 25th 2010

Updates via twitter:
@danmakutime

==Download==

v1.2 released:
DOWNLOAD | Manual

You need to install Java 6 if you don't have it already.

==Technical Info==

Programming language: Java (J2SE 6)
Scripting Language: Lua (LuaJ-1.0.3)
Rendering: OpenGL (JOGL)
Image format: PNG
Audio format: Ogg Vorbis

KomeijiKoishi · « **Reply #1 on:** July 17, 2010, 10:41:33 AM »

How 'bout finishing Touhou DS first?

But nice to see something like this anyway.

Dizzy H. "Muffin" Muffin · « **Reply #2 on:** July 17, 2010, 09:33:09 PM »

Heh. Okay, good luck. Is it going to be open-source?

Stuffman · « **Reply #3 on:** July 17, 2010, 10:52:11 PM »

Ew, java.

Well if it can keep a decent framerate I won't complain.

anonl · « **Reply #4 on:** July 18, 2010, 07:24:50 AM »

Quote from: KimikoMuffin on July 17, 2010, 09:33:09 PM

Heh. Okay, good luck. Is it going to be open-source?

yes

Demonbman · « **Reply #5 on:** July 18, 2010, 07:27:45 AM »

I'm up for testing this if its ok with ya.

P♂ zeal · « **Reply #6 on:** July 18, 2010, 01:39:43 PM »

it'd be nice if you'd program in the BGM pausing when you pause, so if people want music sync in a level/spellcard it doesnt get ruined it they pause.

Dizzy H. "Muffin" Muffin · « **Reply #7 on:** July 18, 2010, 08:09:37 PM »

Quote from: P♂ zeal on July 18, 2010, 01:39:43 PM

it'd be nice if you'd program in the BGM pausing when you pause, so if people want music sync in a level/spellcard it doesnt get ruined it they pause.

This. Harder than diamond.

anonl · « **Reply #8 on:** July 19, 2010, 10:04:50 AM »

10000 bullet render test: http://www.youtube.com/watch?v=47A9ZO7FvBM

Of course there's hardly any scripting, no collision detection, etc. but right now I'm happy with the performance.

EDIT: Working on the player script now. I'm in need of some default graphics/music/sound that's not ripped from a commercial game.

Dizzy H. "Muffin" Muffin · « **Reply #9 on:** July 19, 2010, 08:24:42 PM »

At this stage of the game you can probably get away with just drawing little triangles. Also, http://www.freesound.org/

anonl · « **Reply #10 on:** July 20, 2010, 05:19:11 PM »

Quote from: P♂ zeal on July 18, 2010, 01:39:43 PM

it'd be nice if you'd program in the BGM pausing when you pause, so if people want music sync in a level/spellcard it doesnt get ruined it they pause.

done

Working on the rest of the audio code now.

EDIT: audio code finished

anonl · « **Reply #11 on:** July 21, 2010, 08:50:47 PM »

Collision detection & handling implemented :toot:

Day 3 progress video

EDIT: Day 4 finished
- Collision detection bug fixes
- New collision node types: line segment & axis-aligned rectangle
- Advanced text rendering (fontName,fontStyle,fontSize,color,anchor,outlineColor,outlineSize,underline)
- Hitbox displays when focused
- Enemies can drop items
- Enemies explode
- Graze counter

Day 4 progress video

Dizzy H. "Muffin" Muffin · « **Reply #12 on:** July 23, 2010, 04:15:43 AM »

Okay, about hitboxes and the like -- How much of this is customizable?

anonl · « **Reply #13 on:** July 23, 2010, 06:32:23 AM »

Quote from: KimikoMuffin on July 23, 2010, 04:15:43 AM

Okay, about hitboxes and the like -- How much of this is customizable?

Pretty much everything.

You first define a number of collision types, and which of these types collide with which others:

Code: (lua) [Select]

    --Setup collision matrix
    local colMatrix = ColMatrix.new()
    playerColType = colMatrix:newColType()
    playerGrazeColType = colMatrix:newColType()	
    playerItemColType = colMatrix:newColType()	
    playerShotColType = colMatrix:newColType()
    itemColType = colMatrix:newColType()	
    enemyColType = colMatrix:newColType()	
    enemyShotColType = colMatrix:newColType()

    --player gets collision events from enemyColType and enemyShotColType
    colMatrix:setColliding(playerColType, enemyColType)
    colMatrix:setColliding(playerColType, enemyShotColType)

    --player graze gets collision events from enemyColType and enemyShotColType
    colMatrix:setColliding(playerGrazeColType, enemyColType)
    colMatrix:setColliding(playerGrazeColType, enemyShotColType)

    --item gets collision events from hitting the player's item hitbox
    colMatrix:setColliding(itemColType, playerItemColType)

    --player shots and enemies both get collision events from hitting each other
    colMatrix:setColliding2(playerShotColType, enemyColType)

(Note that setColliding doesn't necessarily give both objects collision events, it only passes events to the first argument of the function. setColliding2 changes the colMatrix so both objects get events.)

Then you just add the kinds of nodes you want to your objects:

Code: (lua) [Select]

    --main player hitbox: a circle with radius 2.0
    player:setColNode(0, playerColType, CircleColNode.new(2.0))
    --player graze hitbox: a circle with radius 10.0
    player:setColNode(1, playerGrazeColType, CircleColNode.new(10.0))
    --player item pickup hitbox: a rectangle with relative position (-12, -20) and size (24, 40)
    player:setColNode(2, playerItemColType, RectColNode.new(-12, -20, 24, 40))

anonl · « **Reply #14 on:** July 23, 2010, 09:22:16 PM »

Day 5 finished:
- Title screen / main menu
- Items (point/power/bomb/life/fullRestore)
- Item autocollect line
- Boss characters with spellcards and lifebar

Day 5 progress video

GenericTouhouFailure · « **Reply #15 on:** July 23, 2010, 11:38:44 PM »

Holyhellthisisfast.png

anonl · « **Reply #16 on:** July 24, 2010, 09:03:41 PM »

Day 6 finished:
- global reset (for restart game & return to title options)
- player invincible for a short time after getting hit
- boss indicator sprite
- pause function is now scriptable
- sound engine changeable from config file (choose between hard sync and smooth playback)
- scrolling backgrounds
- boss dialog

Day 6 progress video

Lord Phantasm Satori · « **Reply #17 on:** July 25, 2010, 02:04:35 AM »

holy crap! I guess you aren't the procrastinating type. what language is it in?

Tengukami · « **Reply #18 on:** July 25, 2010, 02:07:11 AM »

Quote from: Lord Phantasm Satori on July 25, 2010, 02:04:35 AM

holy crap! I guess you aren't the procrastinating type. what language is it in?

http://code.google.com/p/danmakutime/

GenericTouhouFailure · « **Reply #19 on:** July 25, 2010, 02:16:59 AM »

Mac support. You have it?
If not will it run in crossover or something?
if yes ilu

anonl · « **Reply #20 on:** July 25, 2010, 06:49:09 AM »

Quote from: GenericClipdeath on July 25, 2010, 02:16:59 AM

Mac support. You have it?

Yes, native support. (Though there may be mac-specific bugs as I don't have a mac to test on)

Lord Phantasm Satori · « **Reply #21 on:** July 25, 2010, 08:09:30 AM »

F**K YEAH! I actually KNOW JavaScript... (unless Java and JavaScript are two different things

)

anonl · « **Reply #22 on:** July 25, 2010, 08:22:28 AM »

Quote from: Lord Phantasm Satori on July 25, 2010, 08:09:30 AM

F**K YEAH! I actually KNOW JavaScript... (unless Java and JavaScript are two different things )

Javascript == ECMAscript
It's made to look like Java, but it's completely different.

I used Lua for scripting which is much more like Javascript than Java is.

GenericTouhouFailure · « **Reply #23 on:** July 25, 2010, 10:46:43 AM »

Quote from: anoNL on July 25, 2010, 06:49:09 AM

Yes, native support. (Though there may be mac-specific bugs as I don't have a mac to test on)

ohgod *gets ready to do shit*

anonl · « **Reply #24 on:** July 25, 2010, 04:34:47 PM »

v1.0 Beta released:
Downloads
Scripting manual

You need to install Java 6 if you don't have it already.

Dizzy H. "Muffin" Muffin · « **Reply #25 on:** July 25, 2010, 08:09:44 PM »

Hmm. Possible bug: when you go above the POC, and then go below it before you've collected all the items, they stop being attracted towards you.

Also, sound isn't working on Windows 7 x64 ...

anonl · « **Reply #26 on:** July 25, 2010, 08:59:57 PM »

Quote from: KimikoMuffin on July 25, 2010, 08:09:44 PM

Hmm. Possible bug: when you go above the POC, and then go below it before you've collected all the items, they stop being attracted towards you.

It's easily changed, I honestly didn't realize that Touhou does it differently.

Quote from: KimikoMuffin on July 25, 2010, 08:09:44 PM

Also, sound isn't working on Windows 7 x64 ...

Probably related to there being no sound

I commented out this line in script/main.lua:

Code: [Select]

soundEngine:setBGM("bgm/bgm01.ogg")...which is the only sound I was using... If you remove the '--' prefix from the script file, you should at least get some background music.

Dizzy H. "Muffin" Muffin · « **Reply #27 on:** July 25, 2010, 09:07:09 PM »

Yeah, in the Windows games, once an item has started becoming attracted to the player, it doesn't stop until the player either collects it or dies.

And yeah, that would explain it. |3

How customizable are things like size/position of the playing field? Any plans for things like being able to "pack" a game all into one file so it's harder for people to hax it? What about storing dialogue and other text in separate text-files for ease of translation?

DDRMANIAC007 · « **Reply #28 on:** July 25, 2010, 09:43:53 PM »

It says to put scripts in scripts. (Which doesn't exist)

Lord Phantasm Satori · « **Reply #29 on:** July 26, 2010, 06:04:06 AM »

Will there be a way to pack stuff in a way so that downloaders won't need the engine?

Author Topic: Danmaku Time (shmup engine) [v1.2] (update: 2010-08-19) (Read 22895 times)

KomeijiKoishi