※ Dnh Q&A/Problem thread II ※ for Danmakufu ph3 .1 preX(ry

[Drake]

Manually, and what Sparen was talking about:

Code: [Select]

if (((ObjMove_GetX(player) - ObjMove_GetX(bullet))^2 + (ObjMove_GetY(player) - ObjMove_GetY(bullet))^2 )^0.5 < radius) {
  doStuff();
}
The distance between two points (x1, y1) and (x2, y2) is sqrt((x1 - x2)^2 + (y1 - y2)^2).

[Jean Fox]

I need a help!
How can I make spell, that not depends of boss life.
For example: Spell without boss life, and it finishes, only when time is threw. But, also there should be a SpellCardBonus!

[Helepolis]

Set the following in your spellcard @Event

Code: [Select]

case(EV_REQUEST_IS_DURABLE_SPELL) {
SetScriptResult(true);
}

Make sure the boss has no collision (so you cannot harm it). Unless you do want to harm it but prevent HP going down, set Damage rates to 0.


In case of custom system scripts > Timeout triggers the following event which you can catch in a system script or somewhere. You can use this to do something special in case of a time out (FX, SFX etc).

Code: [Select]

case(EV_TIMEOUT) {
if(!ObjEnemyBossScene_GetInfo(GetEnemyBossSceneObjectID,INFO_IS_DURABLE_SPELL)) {
// Show custom FAIL SPELLCARD etc.
}
}

case(EV_GAIN_SPELL)  is automatically triggered when a spellcard is set to durable and the player captures it, so scoring and such can be handled there.

Hope that helps out.

Edit:
Did some adjustments.

[Jean Fox]

@Helepolis
Thanks a lot! All is working!

(P.S. I'm making Touhou Treasure Castle Labyrihtn Extra Stage full! Will be super.Soon coming.)

[Failure McFailFace]

Is there any specific scripting/programming language Danmakufu is based off on? It feels like JavaScript, but you can do multiple things at once...

[Drake]

The script engine (and assumedly the game engine as well) is written in C++ and script syntax is meant to resemble a C-like language with some special extras for working with the engine's event loops and tasks and stuff.

Also, to clarify, Danmakufu does not run any sort of "true" parallelism either, it performs its multitasking through a coroutine implementation, not that that's super important to know for scripters.

[Sage Ω (Ultima)]

JavaScript, and dnh only has it's C syntax in common. There are alot of things that dnh doesn't do, such as how all functions in JS are considered objects and can be stored as variables with their own invocation methods, etc... Certain implementations of JavaScript support coroutines for asynchronous like behavior btw. Although, you'd have to control it yourself.

Danmakufu gives you bare bones syntax with no real special qualities, which is fine given the ultimate goal of the engine is to make Touhou fanworks easy.

[Lollipop]

How would I make it so that the boss starts with an idle animation, but when it moves, it switches to a moving animation which overrides the idle animation until it stops moving?

[Sparen]

How would I make it so that the boss starts with an idle animation, but when it moves, it switches to a moving animation which overrides the idle animation until it stops moving?

One way to implement this is to set the idle source rect, and then check if the boss is moving (i.e. ObjMove_GetSpeed() > 0). If so, set a new source rect.

[Lollipop]

Oh, there's a function for that? (I feel like an idiot)

edit:
Another question, when I declare a variable (say, a bullet) in a loop{} (which is in a task), it seems to be local to the loop{} only, not public i.e I can't call it outside of the loop{} in the same task or outside of the task. Anyone know how to make them public? (At least to the task, but to the whole script would be cool.)

[Sparen]

Another question, when I declare a variable (say, a bullet) in a loop{} (which is in a task), it seems to be local to the loop{} only, not public i.e I can't call it outside of the loop{} in the same task or outside of the task. Anyone know how to make them public? (At least to the task, but to the whole script would be cool.)

If you would like to make a variable global to a block, simply declare it outside of the block. If you want to make true global variables, define them outside all blocks. The usual place to declare global variables is between the Danmakufu Header and @Initialize.

For further reading: http://sparen.github.io/ph3tutorials/ph3u1l4.html#sub6

Edit: I've added an additional example of scope. It should make things clearer for now.

[GuardianTempest]

Is it possible to make the BGM persist between phases when you declared it within the first single script instead of the stage or plural script?

[Sparen]

Is it possible to make the BGM persist between phases when you declared it within the first single script instead of the stage or plural script?

Technically speaking, a BGM loaded in one script cannot be accessed outside of that script.

If you want a BGM to persist throughout part of or most of a boss battle, you must control the music in the plural, in the stage, or you must use a NotifyEvent to trigger the start and stop of the sound.

[Nefer007]

Hello. This is Nefer Nightbug, Shinto God of Insects here.

I've had an idea sitting in the back of my head for, like, ages now.
My original intention was to do it in Blender, but, there's no way to aim bullets.

Is Danmakufu capable of handling...

• Circular combat, like in a circular arena?
• Actual stages, with fairies and things?
• Six stages, the Extra Stage, the Phantasm Stage, and one more stage?
• Stages without midbosses or bosses?
• Heavy amounts of Blender modeling and animation?
• Multiple hitpoints, but no lives (a bit like a cross between Legacy and Pointdevice Modes?)

Thank you.

[Helepolis]

Hello. This is Nefer Nightbug, Shinto God of Insects here.

I've had an idea sitting in the back of my head for, like, ages now.
My original intention was to do it in Blender, but, there's no way to aim bullets.

Is Danmakufu capable of handling...

• Circular combat, like in a circular arena?
• Actual stages, with fairies and things?
• Six stages, the Extra Stage, the Phantasm Stage, and one more stage?
• Stages without midbosses or bosses?
• Heavy amounts of Blender modeling and animation?
• Multiple hitpoints, but no lives (a bit like a cross between Legacy and Pointdevice Modes?)

Thank you.

I am not quite sure if this is a joke question or not. I'll answer them regardless:
1) Yes
2) Yes
3) Yes
4) Yes
5) Until you hit limits, yes
6) Yes, if you script it yourself.

[Sage Ω (Ultima)]

It seems like you haven't researched the engine at all. There have been a number of full Touhou fangames made in danmakufu.

Your 5th question is abit concerning, you cannot go crazy with heavy model rendering, dnh is very fragile with performance and things like that aren't it's specialty at all. Animations are supported by a japanese animating program but the it is a moot point, the animation functions error. The author of the engine has taken an unexpected leave and it doesn't seem like he will be back soon. If this is something essential to your game then I would gladly direct you to use something that could better suit that requirement.

Danmakufu does alot but it isn't your all in one anything. It is designed primarily for danmaku games but obviously through exploiting the flexibility of the engine you can achieve other things. Should you settle for cheap tricks? no. Use something that better suits your requirements.

tldr: with the exception of the 5th question, everything else is highly possible.

[Uruwi]

Another 3D question: what is the standard method to render a long, endless path or hallway?

[Helepolis]

Another 3D question: what is the standard method to render a long, endless path or hallway?

There is no standard method, only preferred method. For simplicity with little to no 3D-elements you can use Texture UV scrolling. For more control + complexity you can use Z-position scrolling and resetting the pieces behind fog / vision.

[koosh_]

Are there any ph3 player scripting tutorials out there? I can't find any and most player scripts I do find are for 0.12m. If there aren't, how would I go about learning how to make one myself?

[Uruwi]

Are there any ph3 player scripting tutorials out there? I can't find any and most player scripts I do find are for 0.12m. If there aren't, how would I go about learning how to make one myself?

You can use this example.

[TalosMistake]

Are there any ph3 player scripting tutorials out there? I can't find any and most player scripts I do find are for 0.12m. If there aren't, how would I go about learning how to make one myself?

I started with downloading one of gtbot's players (you can find it on bulletforge). Gtbot really wrote well-organized code that you can easily understand it. Then I started to make my own player by using gtbot's code as a template. xD

[koosh_]

I started with downloading one of gtbot's players (you can find it on bulletforge). Gtbot really wrote well-organized code that you can easily understand it. Then I started to make my own player by using gtbot's code as a template. xD

You can use this example.

Thanks! I'd already downloaded a few players to see if I could learn from them but it's good to know that GtBot was a good choice. He also made an awesome cutin function that I've used, really good stuff.

Thanks for the help!

[Paty]

Hi. The only way to deal with the Magic Circle that follows the boss (like, changing the sprite, deleting it, etc) is creating a custom system script and adding it in #System in the single/plural/etc?

Thanks!

[Sparen]

Hi. The only way to deal with the Magic Circle that follows the boss (like, changing the sprite, deleting it, etc) is creating a custom system script and adding it in #System in the single/plural/etc?

Thanks!

You can create a magic circle for a boss wherever you want as long as it is not in a package script. Keeping one in the system script is a good idea if it will only be used on bosses. However, if you do not want to do that, you can create a magic circle in a task and call that task from a script that either has that magic circle code or #includes the file containing it. In this case, make sure you are either deleting the magic circle manually or have Object AutoDelete set to true.

[Paty]

Thanks for the answer. However, I don't know how to get rid of the default Magic Circle that comes with danmakufu (actually, the only way I found is modifying the default_system folder's files, but I don't think it is a good idea).

I also tried to copy-paste the default_system folder in my own script folder, modify the copied files, and call them in #system in my plural scrpit (I'm making only plural scripts so far). But it seems that they are ignored and it's used the default ones anyway.

Sorry if my explanation is a bit weird, English is not my first language.

[TalosMistake]

Thanks for the answer. However, I don't know how to get rid of the default Magic Circle that comes with danmakufu (actually, the only way I found is modifying the default_system folder's files, but I don't think it is a good idea).

I also tried to copy-paste the default_system folder in my own script folder, modify the copied files, and call them in #system in my plural scrpit (I'm making only plural scripts so far). But it seems that they are ignored and it's used the default ones anyway.

Sorry if my explanation is a bit weird, English is not my first language.

You can copy-paste default_system folder to your script folder. At the top of your script, write this

Code: [Select]

#System["./default_system/Default_System.txt"]then you can modify Default_System_MagicCircle.txt in the system folder that you copied. Hope this help xD

Edit : Just saw that you already tried it, but I think you were doing it wrong. Try to put the above code to every single file you have (and of course, plural) , because it worked fine for me 

[Paty]

Thanks to you both and sorry. I wasn't puting #system in the non-spells, seems that was the problem.

[koosh_]

http://fat.gfycat.com/PaleDistantAxisdeer.webm

I was messing around with changing patterns into new ones, trying to get ideas for fun things I could do, but I noticed that bullets that fly off the screen are triggered and altered early (as you can see in the top of the screen), most of the pattern is transformed properly but the part that goes offscreen transforms instantly and doesn't home the player, but goes from one side of the screen to the other before being deleted instead.

I tried a whole bunch of things to counteract this but nothing seems to work. I tried having the task not trigger if the bullets disappear with this

Code: [Select]

if(Obj_IsVisible(objD2) == false){Obj_Delete(objD2);}
But that didn't seem to do anything. Any suggestions? I altered the code so the circles would make a flower pattern with the homing butterflies in the end, but the missing piece at the top really messes it up visually. I really hope this is fixable.

Here's the pattern's code in case it's relevant.

http://puu.sh/l9tnh/c5911d58a9.txt

[Sparen]

http://fat.gfycat.com/PaleDistantAxisdeer.webm

I was messing around with changing patterns into new ones, trying to get ideas for fun things I could do, but I noticed that bullets that fly off the screen are triggered and altered early (as you can see in the top of the screen), most of the pattern is transformed properly but the part that goes offscreen transforms instantly and doesn't home the player, but goes from one side of the screen to the other before being deleted instead.

I tried a whole bunch of things to counteract this but nothing seems to work. I tried having the task not trigger if the bullets disappear with this

Code: [Select]

if(Obj_IsVisible(objD2) == false){Obj_Delete(objD2);}
But that didn't seem to do anything. Any suggestions? I altered the code so the circles would make a flower pattern with the homing butterflies in the end, but the missing piece at the top really messes it up visually. I really hope this is fixable.

Here's the pattern's code in case it's relevant.

http://puu.sh/l9tnh/c5911d58a9.txt

You are spawning bullets from a deleted object, most likely. When creating objects at another object's position, the position of the new object will default to (0,0) if the parent object does not exist. To counteract this, make sure that parent bullets are not deleted before you spawn new bullets at their positions.

Obj_IsVisible(objD2) only toggles whether or not the bullet will be rendered on screen and has no relation to whether the object exists or the position of the object.

[koosh_]

So, would verifying whether the object is deleted before spawning from its location be possible? Also, is it possible to work with offscreen bullets?