※ Q&A/Problem Thread 6 ※ for OLD Danmakufu version (0.12m)

[Chuckolator]

Is there any way to play with frameskip like the real games? I wouldn't be surprised if I was getting 20FPS at some points, and 1/2 frameskip would make it tolerable.

[Drake]

It's right there in the config.exe.

[Chuckolator]

how did I not see that before <_<

[Sparen]

Okay. Danmakufu... CRASH REPORT!

Attached is the Wine Backtrace! I will post the player script ASAP.

Background: I have a player script that changes forms when you press the C button. Each individual form has different shots, bombs, etc. However, two of the possible forms currently do not have a set bomb (it is not even called) and all of the bombs use the same .png file for their shots. The crash occurs when bombing in a different form twice. That means, bomb in one form, change to another form, then bomb in that form, then bomb in that form again. I do not know the cause, but it is not the incorrect Obj_Effect syntax (I have tested this already, and the usage of Obj_SetSpeed/Angle/Position with effect objects is not the cause of the crash).

All and any help would be appreciated if possible.

http://pastebin.com/NGdes41Q

[Captainragequit]

I've been following this tutorial
http://www.youtube.com/watch?v=B1Ok4kkhY38

And came across a problem. The image will not load. I tried tweaking everything, but the image for the boss just doesn't appear.
http://pastebin.com/QyEBfkcN

[Drake]

GetCurrentScriptDirectory ~ ("script   utorialzeke1.png") probably doesn't exist unless you did something really weird making directories. It's likely "script   utorialzeke1.png" (as an absolute path) or GetCurrentScriptDirectory ~ "zeke1.png" (as a relative path).

Also wait(60); yield; is just wait(61) or loop(61){ yield; }

[Captainragequit]

ah, that fixed it. Thanks!  :derp:

[Atfyntify]

http://pastebin.com/EYFxgz4T

I have a problem with the sprite animation there o3o

can anyone help?

[Drake]

You never defined f, silly.

[Atfyntify]

You never defined f, silly.

Oh haha, dumb problem. Fixed. thanks drake. c:
Oh wait its not exactly fixed yet. ._.
http://pastebin.com/1H3rNCHs

I have a problem with the Superbullet. .n.
welp I'm still new at writing scripts lol

[Lunasa Prismriver]

You forget to include your function file and to call it in @Initialize. 

[Byronyello]

I've been wondering, how would you create a pentagram, in order to reflect Sanae's types of spells? Actual code is unnecessary, unless it helps with explaining it. Thanks in advance.

[Lunasa Prismriver]

The easiest manner to create a pentagram is to find the 5 points and then to rely them (ther order is 1,3,5, and 4). Besides,you can use invisible familiars for this. For a regular pentagram, finding the points is easy, you just have to use sine and cosine and add 360/5 each times. 

[Atfyntify]

You forget to include your function file and to call it in @Initialize. 

Hmm I don't exactly get what you mean? I do have @Initialize. And what function file? o:
sorry for asking these questions lol I'm still sorta new at writing scripts

[Lunasa Prismriver]

Forgot all what I said in my previous post. I misread your code :ohdear:
 
Your supershot function is full of typo :

Code: [Select]

task Superbullet(x,y,v,dir,graphic,delay){
                       let obj - obj_create(OBJ_SHOT);
               Obj_SetPosition(obj,3,5);
               Obj_SetSpeed(obj,0.9);
               Obj_SetAngle(obj,54);
               Obj Shot_Setgraphic(obj,AQUA01);
               Obj Shot_SetDelay(obj,30);
          }  You've put "-" instead of "=" at "let obj".
The two last lines have a useless space between Obj and Shot.
You forget the capital at SetGraphic and Obj_Create.
Your task is asking for arguments but you're not using them. So here a better code  :

Code: [Select]

task Superbullet(x,y,v,dir,graphic,delay){
               let obj = Obj_Create(OBJ_SHOT);
               Obj_SetPosition(obj,x,y);
               Obj_SetSpeed(obj,v);
               Obj_SetAngle(obj,dir);
               ObjShot_SetGraphic(obj,graphic);
               ObjShot_SetDelay(obj,delay);
          }  I hope I help you. 

[Byronyello]

The easiest manner to create a pentagram is to find the 5 points and then to rely them (ther order is 1,3,5, and 4). Besides,you can use invisible familiars for this. For a regular pentagram, finding the points is easy, you just have to use sine and cosine and add 360/5 each times. 

Hmm. That's what I did, just not with invisible familiars. I'll give it another try and see what happens. Oh, and: "you just have to use sine and cosine and add 360/5 each times" isn't helpful. If I didn't know what you meant, I'd be wondering 'use sine and cosine how?' and 'add 360/5 to what?'.

[Lunasa Prismriver]

Yeah, I'll explain this more.
Since I'm not very good at english, here a little scheme for explain the idea how find the coordinates of the five points.
[attach=1]

[Captainragequit]

http://pastebin.com/H0t0sASK

I keep getting an error saying
"script_enemy_main<complete gibberish in square symbols>"
I have all of my brackets and quotes in order. What did I mess up on? I finished working on adding movement patterns.

never mind, I spotted it, I forgot to place a bracket

Actually that didn't fix it.... darn it.

[Alicirno]

Code: [Select]

task movement{
loop{
SetMovePosition01(GetCenterX -100,120,5);
wait(120);
SetMovePosition01(GetCenterX +100,120,5);
wait(120);
yield;
}
to

Code: [Select]

task movement{
loop{
SetMovePosition01(GetCenterX -100,120,5);
wait(120);
SetMovePosition01(GetCenterX +100,120,5);
wait(120);
}
}There was a bracket missing at the end of the movement task. It worked after I added it. I removed an unnecessary yield; (I'm not sure where you put the extra bracket)

Also, doing

Code: [Select]

wait(30);
yield; is basically telling the script to do

Code: [Select]

wait(31);

[Atfyntify]

Forgot all what I said in my previous post. I misread your code :ohdear:
 
Your supershot function is full of typo :

Code: [Select]

task Superbullet(x,y,v,dir,graphic,delay){
                       let obj - obj_create(OBJ_SHOT);
               Obj_SetPosition(obj,3,5);
               Obj_SetSpeed(obj,0.9);
               Obj_SetAngle(obj,54);
               Obj Shot_Setgraphic(obj,AQUA01);
               Obj Shot_SetDelay(obj,30);
          }  You've put "-" instead of "=" at "let obj".
The two last lines have a useless space between Obj and Shot.
You forget the capital at SetGraphic and Obj_Create.
Your task is asking for arguments but you're not using them. So here a better code  :

Code: [Select]

task Superbullet(x,y,v,dir,graphic,delay){
               let obj = Obj_Create(OBJ_SHOT);
               Obj_SetPosition(obj,x,y);
               Obj_SetSpeed(obj,v);
               Obj_SetAngle(obj,dir);
               ObjShot_SetGraphic(obj,graphic);
               ObjShot_SetDelay(obj,delay);
          }  I hope I help you. 

I replaced what I wrote with yours, but I get this error

[Lunasa Prismriver]

You must put arguments like this :

Code: [Select]

Superbullet(GetX,GetY,2,GetAngleToPlayer,AQUA22,10);

http://pastebin.com/H0t0sASK

I keep getting an error saying
"script_enemy_main<complete gibberish in square symbols>"
I have all of my brackets and quotes in order. What did I mess up on? I finished working on adding movement patterns.

never mind, I spotted it, I forgot to place a bracket

Actually that didn't fix it.... darn it.

In movement task, you forget a "}".

[Sparen]

@Atfyntify

Are you using Japanese Locale? Looks like Chinese to me. The error messages won't make much sense unless you are using Japanese Locale, and that may hamper future translation of the error messages.

Just a suggestion.

[Byronyello]

Yeah, I'll explain this more.
Since I'm not very good at english, here a little scheme for explain the idea how find the coordinates of the five points.
[attach=1]

Eh.. I already knew what you meant. I was just saying that when you're exaplaining it to others, you won't want to say: "use sine and cosine and add 360/5 each times". I say this because I imagine a lot of people who can't use Google properlyneed help won't know what sine/cosine even do, never mind how to use them in the context of a game.

Anyway, I'm wondering how one would go about finding the path that the familiar(s) would have to take? Off the top of my head:

Code: [Select]

// assume we have a 'wait' task, a 'sqrt' function and a 'spawnBullet' function.
task TMoveFamiliar
{
//This is where the familarA = Obj_Create(OBJ_EFFECT) etc. goes.
//The radius of the 5 points from the boss is 100 pixels.

//Not sure whether this is the correct syntax for creating empty arrays... :P
let xPositions = [];
let yPositions = [];
let angles = [];
let distanceToNext[];
let radius = 100;

ascent(i in 0..5)
{
xPositions[i] = GetX+radius*cos(144*i);
yPositions[i] = GetY+radius*cos(144*i);
if(i!=5)
{
angles[i] = atan2(yPositions[i+1]-yPositions[i], xPositions[i+1]-xPositions[i]);
distanceToNext[i] = sqrt((xPositions[i]-xPositions[i+1])^2+(yPositions[i]-yPositions[i+1])^2);
} else {
angles[i] = atan2(yPositions[0]-yPositions[i], xPositions[0]-xPositions[i]);
distanceToNext[i] = sqrt((xPositions[i]-xPositions[0])^2+(yPositions[i]-yPositions[0])^2);
}
}

let starCreateTime = 120; //time it takes to make the star in frames.
ascent(i in 0..5)
{
SetAngle(angles[i]);
SetSpeed(distanceToNext[i]/(starCreateTime/5));
wait(starCreateTime/5);
spawnBullet(args);
}
}Do you think this would work?

Also, I realise that all of the values in the 'distanceToNext' array will be the same, by virtue of being a regular pentagram. I'll clean it up when I'm properly coding it.

[Drake]

You can do it without any fancy arrays, but yeah that's it. Each next line in the star is 144 degrees in the circle, so each chord that makes up the star is going to have the same length. There's a way to get the value other ways, but notice the chord from 72 degrees to -72 degrees in the previous picture makes a vertical line, and both are clearly the same distance from the zero-angle/origin. Since sin(72) is the vertical distance from the origin, just double it to get the chord length for the unit circle. Then you can multiply by the radius of the circle.
Because the star begins straight, you only add half the "turning" angle to get your first angle. You can see the turning angle is 144 (but you can figure it out as 360 - 36 + 180).

The code would be like:

Code: [Select]

task star{
   let radius = 100;
   let chord = sin(72)*2*radius;
   let fam = Obj_Create(OBJ_EFFECT);
   Obj_SetPosition(fam, GetEnemyX, GetEnemyY - 100);
   let time = 150;
   ascent(i in 0..5){
      Obj_SetSpeed(fam, chord/(time/5));
      Obj_SetAngle(fam, 72 + i*144);
      loop(time/5){ yield; }
   }
   Obj_Delete(fam);
}Of course the actual bullets part is missing, but you can do that a few different ways.

[Pepperized]

Trying to run a stage script that executes enemy scripts.

I'm getting an error message saying script_enemy_main(bunch'a moonrunes)

I have checked the { }s and they are fine.

Enemy

Code: [Select]

script_enemy_main{

let spin = 0;
let CSD = GetCurrentScriptDirectory;
let imgFam = CSD ~ "system\fam.png";



@Initialize{
SetLife(3000);
LoadGraphic(imgFam);
mainTask;
}

@MainLoop{
SetCollisionA(GetX,GetY,16);
SetCollisionB(GetX,GetY,16);
yield;
}

@DrawLoop{

SetTexture(imgFam);
SetRenderState(ALPHA);
SetAlpha(255);
SetGraphicRect(0,0,235,215);
SetGraphicScale(0.1,0.1);
SetGraphicAngle(0,0,spin);
DrawGraphic(GetX,GetY);
spin-=10


}

@BackGround{
}

@Finalize{
DeleteGraphic(imgFam);
}

task mainTask{
yield;
movement;
fire;
}

task fire{
loop{
let x = 0;
while(x<7){
CreateShot02(GetX,GetY,0.5,GetAngleToPlayer,0.02,3,RED01,0);
CreateShot02(GetX,GetY,0.5,GetAngleToPlayer+20,0.02,3,RED01,0);
CreateShot02(GetX,GetY,0.5,GetAngleToPlayer-20,0.02,3,RED01,0);
x++;
yield;
wait(2);

}
x = 0;
wait(30);
yield;
}
}

task movement{
loop{
SetMovePositionHermite(GetX+100,GetY,300,90,300,270,40);
wait(240);
SetMovePosition01(GetClipMaxX,GetY,2);
wait(240);
yield;
}
}

function wait(w){
loop(w){yield;}
}

}
Stage

Code: [Select]

#TouhouDanmakufu[Stage1]
#Title[Stage1]
#Text[How to make stages in Danmakufu]
#Image[]
#Background[]
#BGM[]
#Player[FREE]
#ScriptVersion[2]

script_stage_main{

function Wait(let frames){
loop(frames){yield;}
}

function WaitForZeroEnemy{
while(GetEnemyNum != 0){yield;}
}

task stage{
Wait(120);
CreateEnemyFromFile(GetCurrentScriptDirectory~"enemy01.txt", GetCenterX-100, GetClipMinY, 0, 0, 0);
CreateEnemyFromFile(GetCurrentScriptDirectory~"enemy01.txt", GetCenterX+100, GetClipMinY, 0, 0, 0);
WaitForZeroEnemy;
CreateEnemyFromScript("enemy01", GetCenterX, GetCenterY, 0, 0, 0);
WaitForZeroEnemy;
CreateEnemyBossFromFile(GetCurrentScriptDirectory~"elenna.txt", 0, 0, 0, 0, 0);
WaitForZeroEnemy;
Wait(60);
Clear;
}

@Initialize{
stage;
}
@MainLoop{
yield;
}
@Background{

}
@Finalize{

}
}


Code: [Select]

[Pepperized]

Well this is embaressing.

I had #TouhouDanmakufu[Stage1] instead of [Stage]

Woops

[Sparen]

Okay, a player script question.
My player script changes the character when you press C, and all of the characters have different bombs. If you are hit, you revert to a specific character. How can I alter it so that you deathbomb with the character you are in?

In script player main

Code: [Select]

  let veetype=0; //0=Veemon, 1=Exveemon 2=Lighdramon, 3=Fladramon, 4=Magnamon
In Initialize

Code: [Select]

    SetRebirthFrame(20); //Deathbomb time is a third of a second
    SetRebirthFrameReduction(0); //Make sure that death bomb time isn't reduced every deathbomb
In Main Loop

Code: [Select]

     if(GetKeyState(VK_USER)==KEY_PUSH){
      if(veetype < 4){
veetype++;
      }else{ //For Magnamon to ExVee
veetype = 1;
      }
    }

Code: [Select]

  @Missed {
    SetRebirthFrame(30);
    veetype = 0;
    SetSpeed(3.5,1);
  }
  @SpellCard {
    if(veetype==0){CutIn(KOUMA, "Three Ray Vee Blaster", img_cutinV);
      UseSpellCard("VeeBlaster", 0);
    }
    if(veetype==1){CutIn(KOUMA, "X Laser", img_cutinX);
      UseSpellCard("XLaser", 0);
    }
    if(veetype==2){CutIn(KOUMA, "Lightning Discharge", img_cutinL);
      UseSpellCard("LightningDischarge", 0);
    } //No pun intended
    if(veetype==3){CutIn(KOUMA, "Triple Flame Wave", img_cutinF);
      UseSpellCard("FlameWave", 0);
    }
    if(veetype==4){CutIn(KOUMA, "Holy Wipeout", img_cutinM);
      UseSpellCard("HolyWipeout", 0);
    }
  }The above statements all control the deaths, bombs, and player forms. The question is, how do I alter it so that I can death bomb with the character in play? Or is there an "if(!"DEATHBOMB"){}" method? (there's OnBomb, but the player deathbombs after he has already been hit and the stuff has been executed.

[Lunasa Prismriver]

Code: [Select]

@SpellCard{
 if(IsLastSpell == true){
  CutIn(KOUMA, "Last Spell Bomb", img_cutinL);
  UseSpellCard("Last Spell Bomb", 0);
 }else{
  CutIn(KOUMA, "Lightning Discharge", img_cutinL);
  UseSpellCard("LightningDischarge", 0);
 }
}
Other useful functions for players scripts : http://dmf.shrinemaiden.org/wiki/Character_Script_Functions_(0.12m)#IsLastSpell

[Drake]

Well this is embaressing.

I had #TouhouDanmakufu[Stage1] instead of [Stage]

Woops

You also have spin-=10 without a semicolon. And please, next time put whole scripts and long segments of code into pastebin.

[Sparen]

Code: [Select]

@SpellCard{
 if(IsLastSpell == true){
  CutIn(KOUMA, "Last Spell Bomb", img_cutinL);
  UseSpellCard("Last Spell Bomb", 0);
 }else{
  CutIn(KOUMA, "Lightning Discharge", img_cutinL);
  UseSpellCard("LightningDischarge", 0);
 }
}

This code actually doesn't help at all; I'm not trying to have a separate bomb for normal spell and last spell (though that IsLastSpell will come in handy later on). By the time the spell is called, @MainLoop has already finished and the player has already changed player types. It will counter bomb with the default bomb rather than the bomb of the character that was just in play.

To give an example of what I am trying to do, imagine SAMarisaB(Patchy) but with different bombs, different speed,etc. for each form. Sort of like Puremrz' Juuni Jumon player character, except that you revert to a specific character upon death and can change types with a press of a button.

Also, what trigonometric functions would you use for the SetVertexXY values of an effect laser that always points at a certain degree angle and moves along with the player? The laser's width is 5 pixels.