Danmakufu Q&A/Problem Thread

[canobiecrazy]

I got it working, just had to disable my UAC...

[Henry]

I've encountered a very weird problem.

The same Spell Card I made is put in 2 different folders with the same source materials. But one of those works perfectly whilst another caused significant slow down.

Can somebody explain this?

[canobiecrazy]

Im having a problem with this script.. I cant get shot replace to work. Can anyone tell me whats wrong with it?

   
   
   @Initialize{
      SetLife(1500);
      SetTimer(60);
shotinit;
      SetInvincibility(30);
      LoadGraphic(imgExRumia); //Load the boss graphic.
      SetMovePosition02(GetCenterX, GetCenterY - 100, 120); //Move the boss to the top center

of the screen.
   }
   
   @MainLoop{
   SetCollisionA(GetX, GetY, 32);
   SetCollisionB(GetX, GetY, 16);
   frame++;
   
   if(frame==120){
   
      loop(150){
         CreateShot01(GetX, GetY, 7, angle, RED52, 0);
         angle += 780/50;
      }
     
      angle = 0;
      frame = 60;
   }
   
   
   }

   @DrawLoop{
      //All this foolishness pertains to drawing the boss. Ignore everything in @Drawloop

unless you have read and understand Nuclear Cheese's Drawing Tutorial.
      SetColor(255,255,255);
      SetRenderState(ALPHA);
      SetTexture(imgExRumia);
      SetGraphicRect(64,1,127,64);
      DrawGraphic(GetX,GetY);
   }
     
   @Finalize
   {
      DeleteGraphic(imgExRumia);
   }
}

[Chronojet ⚙ Dragon]

Im having a problem with this script.. I cant get shot replace to work. Can anyone tell me whats wrong with it?

Just looking...
Did you use #include_function "libSHOT_REPLACEshot_replace.dnh"; ?
Did you have all the // comments on one line?

[CK Crash]

Did you remember to use...

#include_function "lib\SHOT_REPLACE\shot_replace.dnh"

...right above @Initialize? This grabs all of the code inside of the shot replace script, so that it can be called using shotinit. Also, a 150 bullet ring at speed 7 sounds insane. The average bullet speed is between 1 and 4, and 36 bullets per ring is a fair amount if you're aiming for a normal level script.

[canobiecrazy]

Thanks for the help, I figured it out. Now I have a new question. How do I add another CreateShot01? I want to add a homing shot so the player cant stay in one safe spot for the entire attack.

[CK Crash]

Use GetAngleToPlayer for the bullet angle if you want it to be aimed at the player. An actually homing shot would require knowledge of object bullets. I wouldn't mind walking you through it via PM, but it's relatively advanced.

[Helepolis]

I am currently immitating the burning aura for bosses and such, however my code seems to cause Danmakufu to clog up and eventually get extreme FPS dropping after a while.

My method is the follow:
- An effect object task that spawns 1 particle using currently a 128x128 texture which is a light particle.
- The task is called within a loop which spawns the particle at random x-offset causing a nice burning aura/flame
- The effect objects scale down during the loop inside the task.

Here is the code for the loop which is inside the effect task.

Code: [Select]


loop {
Obj_SetPosition(obj,x,y);   
        ObjEffect_SetScale(obj, sx, sy);  // scaling
ObjEffect_SetAngle(obj,0,0,dir); // dir
  ObjEffect_SetVertexColor(obj,0,alphret,255,255,255);
ObjEffect_SetVertexColor(obj,1,alphret,255,255,255);
  ObjEffect_SetVertexColor(obj,2,alphret,255,255,255);
  ObjEffect_SetVertexColor(obj,3,alphret,255,255,255);
alphret-=5;  // this is for decreashing alpha value
y-=3; 
dir+=5;
sx-=0.01;  // scales down
sy-=0.01;   // scales down
if(c==60){Obj_Delete(obj);}   // after 60 frames delete the object.
c++;
yield;
}

But it still causes FPS drop =,= why ?

[Stuffman]

Is the loop terminating correctly once the object is deleted? I dunno I can't see the code around it.

[Helepolis]

There is nothing after the loop , only a } which is the end of the task. The loop is terminated correctly?

[Stuffman]

Wait, is it actually a loop and not a while? With no number of iterations specified? If you do that the loop won't end, right? It should be like, loop(61){ shouldn't it?

[Helepolis]

Should I replace it with   while(!Obj_BeDeleted)? 

I think indeed the loop is a problem. Let me go try that out.

Edit:

while(!Obj_BeDeleted) fixed the problem. Note to self: "Dnh does not like loops in effects and objects if it is not killed proper"

[Demonbman]

ok i have a few questions, while i was messing with angle+= i came across something ive ever seen before

 

Code: [Select]

#TouhouDanmakufu
#Title[Freaky Bullets]
#Text[]
#Player[FREE]
#ScriptVersion[2]

script_enemy_main {
    let frame = 0;
    let angle = 0;
#include_function "lib\SHOT_REPLACE\shot_replace.dnh"
    @Initialize {
SetMovePosition02(GetCenterX, GetCenterY-120, 120);
        SetLife(900);
        SetDamageRate(100, 50);
        SetTimer(600);
        SetScore(50000);
        SetEnemyMarker(false);
        Concentration01(60);
        Concentration02(60);
        MagicCircle(false);
shotinit;
    }

    @MainLoop {
        SetCollisionA(GetX, GetY, 32);
        SetCollisionB(GetX, GetY, 24);
    frame++;
if(frame%1==0){
angle+=17493;
CreateShot01(GetX,GetY,2,angle+10,AQUA56,0);
CreateShot01(GetX,GetY,2,angle+20,RED56,0);
CreateShot01(GetX,GetY,2,angle+30,BLUE56,0);
CreateShot01(GetX,GetY,2,angle+40,PURPLE56,0);
CreateShot01(GetX,GetY,2,angle+50,ORANGE56,0);
CreateShot01(GetX,GetY,2,angle+60,WHITE56,0);
CreateShot01(GetX,GetY,2,angle,YELLOW56,0);
CreateShot01(GetX,GetY,2,angle+70,GREEN56,0);
}
    }

@DrawLoop{
}

@Finalize
{
}
}
Causes HUGE bullets to fill the screen, why is this?

and also, angle+= only makes the bullets go clockwise, it there a way to make them go counterclockwise? i tried putting the number at the end of angle+= negative butno such results, any ideas?

[Stuffman]

Someone was talking about this earlier today in IRC, for some reason putting a gigantic value in the angle causes some sort of overflow that makes the shot weird out.

The inverse to += is -=, naturally.

[Fujiwara no Mokou]

Alright, I have a problem.  I wanted to make a stage script, but I don't think I should have started off the way I did.

I made my spellcards, tested them, they worked, etc etc.  I put them together with a plural script, then I said "bah, I'll just make a stage altogether".

Just when I thought I had this Danmakufu down, it started getting really irritating.


I was putting together a stage script composed of plural scripts for the boss's spellcards.
I wanted the Stage to have it's own background, and the boss's spellcards have its own, depending on whether it was a pre-spellcard or not.

I wanted just a few things I put in the stage script, and build off of that as I go.  I started off very simple.

Code: [Select]

#TouhouDanmakufu[Stage]
#Title[Mokou Stage]
#Text[The stage, Mokou is the boss.]
#Player[FREE]
#ScriptVersion[2]

script_stage_main{

              let background3 = GetCurrentScriptDirectory~"background3.png";




@Initialize{

      LoadGraphic(background3);
      immortal;

}

@Mainloop{
yield;
}



@DrawLoop{
}



@BackGround{

      SetTexture(background3);
      SetGraphicAngle(0,0,0);
      SetGraphicRect(0, 0, 384, 448);
      SetGraphicScale(1,1);
      DrawGraphic(GetCenterX, GetCenterY);

}


@Finalize{
DeleteGraphic(background3);
}


task immortal{
             
          }



}Everything worked nicely, the background loaded, no crash.
Then I put in the path for the plural script that lead to the boss's spellcards.

Code: [Select]

task immortal{
             
          CreateEnemyBossFromFile(GetCurrentScriptDirectory ~ "Plural.txt",GetCenterX,0,2,90,NULL);
            }
It didn't load.  No error either, but it was just as if I never put in anything at all. To find out where I went wrong, I decided to replace the string for the plural script, to the individual spell script which I tested and worked when loaded by itself (it also had its own background for that spellcard, so it should have loaded too).
But it didn't.  Just the blank stage, with the background which I commanded for the stage script to load.
What's going on here? Why don't my scripts load?

[Stuffman]

- Try putting a loop(60){yield;} in front of the CreateBoss line. Functions can fail sometimes if you try to load them instantly when the script starts. This will put a bit of delay in front of it.
- Filenames are case sensitive, make sure the file isn't called plural.txt rather than Plural.txt

[Fujiwara no Mokou]

- Try putting a loop(60){yield;} in front of the CreateBoss line. Functions can fail sometimes if you try to load them instantly when the script starts. This will put a bit of delay in front of it.
- Filenames are case sensitive, make sure the file isn't called plural.txt rather than Plural.txt

It didn't work.
Maybe I'm missing something.  Can you bring out/upload a very simple stage script that loads a plural script for me?  Maybe I'm missing something.  Nothing seems to be working for me anymore.

[Stuffman]

OH.

MainLoop. Not Mainloop. Capitalize the L. No yield, no task.

[Fujiwara no Mokou]

OH.

MainLoop. Not Mainloop. Capitalize the L. No yield, no task.

Stuffman, you did it again.

akakldfja;kdja;skfjal;sfjskl;

[canobiecrazy]

Something is wrong with this script and I have no idea what....

Code: [Select]

#TouhouDanmakufu
#Title[Laxative Sign "Suppository Toss"]
#Text[Reisen throws a bunch of suppositorys.]
#Player[FREE]
#ScriptVersion[2]

script_enemy_main{
 #include_function "lib\SHOT_REPLACE\shot_replace.dnh"
   let imgExRumia="script\ExRumia\img\ExRumia.png";
   let frame = 0;
   let angle = 0;
   @Initialize{
      shotinit;
      SetLife(1500);
      SetTimer(60);
      SetInvincibility(30);
      CutIn(YOUMU, "Laxative Sign "Suppository Toss", BossCutIn, 0, 0, 200, 600);
      LoadGraphic(imgExRumia); //Load the boss graphic.
      SetMovePosition02(GetCenterX, GetCenterY - 100, 120); //Move the boss to the top center

of the screen.
   }
   
   @MainLoop{
   SetCollisionA(GetX, GetY, 32);
   SetCollisionB(GetX, GetY, 16);
   frame++;
   
   if(frame==120){
   
      loop(150){
         CreateShot01(GetX, GetY, 7, angle, WHITE52, 0);
         angle += 780/50;
         CreateShot01(GetX, GetY, 3, GetAngleToPlayer, WHITE52, 10);
         Frame = 0;
      }
     
      angle = 0;
      frame = 60;
   }
   
   
   }

   @DrawLoop{
      //All this foolishness pertains to drawing the boss. Ignore everything in @Drawloop

unless you have read and understand Nuclear Cheese's Drawing Tutorial.
      SetColor(255,255,255);
      SetRenderState(ALPHA);
      SetTexture(imgExRumia);
      SetGraphicRect(64,1,127,64);
      DrawGraphic(GetX,GetY);
   }
     
   @Finalize
   {
      DeleteGraphic(imgExRumia);
   }
}

[CK Crash]

You capitalized "frame" inside of your 150 loop. Remember, Danmakufu is picky about cases.

[canobiecrazy]

You capitalized "frame" inside of your 150 loop. Remember, Danmakufu is picky about cases.

Ahhh! Thank you! It works now, I just removed the line

 CutIn(YOUMU, "Laxative Sign "Suppository Toss", BossCutIn, 0, 0, 200, 600);

And changed that to a lower case f and it works fine now. Thank you.

[Helepolis]

3D drawing is fun ze! NOT.

I don't know if anybody ever did this before. I made a full cubical room in 3D drawing. The room looks nice and dandy. Now my genius idea was to move the camera around inside the room giving it a flight sensation. ( Altering SetViewTo and SetViewFrom parameters )

However, when the camera moves forward like 512 pixels, it resets and reverses 180 degree moving backwards. I cannot show anything yet here because I am at work.

[puremrz]

Hm, are you moving the entire stage, or only the camera? I have only done forward/backward movement by stage-scrolling so I can't say for sure that the camera may have a distance limit to it. As for the 180 turn, no clue o_O Try changing the scrolling speed, see what difference that makes.

3D drawing is fun ze! NOT.

I don't know if anybody ever did this before. I made a full cubical room in 3D drawing. The room looks nice and dandy. Now my genius idea was to move the camera around inside the room giving it a flight sensation. ( Altering SetViewTo and SetViewFrom parameters )

However, when the camera moves forward like 512 pixels, it resets and reverses 180 degree moving backwards. I cannot show anything yet here because I am at work.

[Helepolis]

I am not scrolling the 3D images, I am only moving the camera view around. It is hard to explain. I will try to create a movie, please wait warmly.


Download little movie here and see what happens.

[Stuffman]

I have a strange urge to play Doom again...

Anyway it might've been some kind of math error? Seeing the code would be better, as well as knowing how the camera is supposed to move. Do you want it to turn when it reaches the wall or something?

[Demonbman]

is there a way to have a follow a player around? Like keep checking where the player is? ive tried making CreateShotA's and multiple SetShots that tell the bullet to always GetAngleToPlayer,
but it only goes in the one direction, and ive also tried setting a variable for GetAngleToPlayer, and that has failed as well.

[Suikama]

Make an object bullet and get the angle to the player using arctangent every frame

[Demonbman]

Make an object bullet and get the angle to the player using arctangent every frame

aahh! object bullets!! grr..those are the ones you make using tasks right?

[Suikama]

aahh! object bullets!! grr..those are the ones you make using tasks right?

Yep