Esenthel Forum - Game Classes

jumping --> chained animation?

Fri, 27 Aug 2021 13:59:41 +0000

Hey there,

and another one:

I usually create my jump animations in three parts:

startedJumping? ---> jumpStart.anim
inAir? -> jumpLoop.anim
isGrounded? --> jumpLanding.anim

How can I do this in Esenthel?
Is this possible with the Game.chr?
Or do I have to roll my own custom class?
And how do I chain animations?

Inserting character in world

Fri, 16 Apr 2021 12:33:59 +0000

Hi all,

Back in the day, this used to work to insert a character into the world:

Code:

void create(Int ID, Str name, Vec2 position, Flt scale)

{

    Game::ObjParams obj; 

    obj.create(*Game::Objs(UID(xx, xx, xx, xx)));

    obj.scale (true, scale);

    obj.matrix.pos.x = position.x;

    obj.matrix.pos.z = position.y;

    obj.matrix.pos.y = Game::World.hmHeight(position);   

    UID uid; 

    uid.fromText(L"OBJ_CHR");

    obj.type(true, uid);

    super::create(obj);

    Name    = name;

    this->ID = ID; 

    ctrl.actor.mass(1).kinematic(true).collision(true).group(ACTOR_NPC).obj(thi​s);

}

This is what my old code has to insert a character into the world (server sided AI). I have issues finding the equivalent of "Game::ObjParams" [I thought it was ObjectPtr?].

How can I insert a character, like the example above, in the world through code?

Kb.eat() usage

Wed, 14 Apr 2021 22:12:32 +0000

Hi there,

From what I understood from the header is that the eat() method can be used to "disable" keyboard usage in other functionality: it should disable, for example, the movement keys from my character as 'it's a different code'.

Code:

virtual void update(C GuiPC &gpc)

   {

      super.update(gpc);

      if(Gui.kb()==this)

      {

         if(Kb.bp(KB_ENTER))

         {

            Kb.eat(KB_ENTER);

            Str t=T();

                t.clip(pnconstants::MaxChatLength);

            if(t != "" || t != " ")

            {

               Chat.New(ChrData.name+": "+t);

               ClientSendChat(Server, t); hide();

            }

         }

      }else

      {

         hide();

         if(Kb.bp(KB_ENTER))

         {

            Kb.eat(KB_ENTER); clear().activate();

         }

      }

   }

However, it doesn't seem to work no matter where I place it. Did I perhaps misunderstand the header information? How can I disable other functionality by keyboard input as soon as the TextLine is being used to type a message?

XML - Load from Memory

Sun, 11 Apr 2021 07:51:27 +0000

Hi all,

As I am working on an online game, I want to make use of some XML files that I have stored on the server (e.g showing some news, loading some server information). As per the post here in this thread, Greg stated that loading xml from memory would be added ( https://www.esenthel.com/forum/showthread.php?tid=3113 ).

The load method from XmlData only accepts a name, id or file, but not any file from memory.

Currently, I have worked around it by downloading the files locally to the machine from the webserver using the Download class and reading it from there. Although preferably I would not like to store these xml files on the client's machines.

Has anyone tackled this beforeand found an elegant solution that did not require saving the files locally first before reading them?

Environment - Setting through code

Thu, 22 Oct 2020 16:43:35 +0000

Hi there,

Having some difficulty in setting the environment parameters through code. In the InitGame() function, whenever I do this, it works as expected:

Code:

if(Game.World.settings().environment)

   {

      Game.World.settings().environment->set();

      // Load the settings from the editor into the env_World_outdoor Environment

      env_world_outdoor.get();

      env_world_outdoor.fog.density = 0.02523040f; env_world_outdoor.fog.set();

      env_world_outdoor.set();

   }

env_world_outdoor is an object of class "Environment". How would I go and update this setting during runtime? My idea is as follows, something along these lines:

Code:

if (g_hour > 20 && g_hour < 5) // g_hour is current hour of the day

{

     env_world_outdoor.fog.density = 0.035f; env_world_outdoor.fog.density.set();

}

Putting the check in the update loop did not give the expected results. Any help is greatly appreciated!

Search for Objects having certain base

Thu, 27 Feb 2020 17:52:54 +0000

Is there a possibility to get a list of Objects having certain base Object? I found method hasBase() but first I need to go through all objects, which lies on the file system (directly or in pak archives) and call this method.

Is there any neat way to do this without checking every object in the root directory? Does the engine keep somewhere folders hierarchy visible in the Editor and it can be accessed even in published version of application?

Please explain this function to me.

Mon, 24 Dec 2018 13:21:40 +0000

Hi there!
Can someone kindly explain to me the meaning of this line of code?
I have been using it without being able to explain it to myself.

/******************************************************************************/
// Helper functions/classes used for dropping down item
int UtoS(uint x) // return unsigned to signed value
{
// 0 -> 0
// 1 -> 1
// 2 -> -1
// 3 -> 2
// 4 -> -2
// ..
return (x&1) ? (x+1)>>1 : -int((x+1)>>1);
}
Thanks in advance!

Which Base class for my Lamborghini?

Wed, 21 Nov 2018 02:17:25 +0000

Hi!
I want to write a class for my car.Common sense tells me that I should extend the Game.Kinematic like below:
Class Lamborghini:Game.kinematic
{
//
}
I reasoned that a moving car is a kinematic object.But when I do that the Lamborghini moves through walls.

If I extend Game.Chr class like below:
Class Lamborghini:Game.Chr
{
//
}
The car does not go through walls.But unless I want to code "Optimus Prime" in the "Transformers", I don't think this is a good idea.
What is the right class to implement a Lamborghini class in EE.
Thanks.

Skeleton run different Animation

Sat, 02 May 2015 13:03:48 +0000

Hi Esenthel

I have a Skeleton with three bones:

BoneA - main bone;
BoneB - bones of the upper half of skeleton(Parent bone is BoneA);
BoneC - bones of the lower half of skeleton(Parent bone is BoneA);

now I have two animations:

attack -
walk -

I want BoneB run the attack animation
and BoneC run the walk anination

how can i do it?

thanks.

Creating mesh with Editor Interface

Mon, 08 Sep 2014 15:27:27 +0000

Hi,
How can I create new mesh using Editor Interface? Is created automatically with ELM_OBJ? If yes, how can I get access to it? If no, how can I create manually new blank mesh in Editor?

[World.PathFind] Behavior of partial pathfinding

Thu, 08 May 2014 13:36:55 +0000

Hi all,

Since the fix in pathfin for partial or no partial path (see PostOnPartialPathfinding) I've been messing around again with this feature.

So what I'm trying to do is to have the closest point to my destination in straight line. I thought, hell let's use pathfinding in "closest" mode :

Code:

Game.World.path().find(Chrs[0].pos(), phys_hit.plane.pos,  Chrs[0].path, 2, PMF_WALK, true);

but the result is not what attended, it's more like it's searching the total path for the closest point, then truncate it only two keep the first two points and not try to find in 2 points the closest path.

It's surely because of the way of how it's build, woch might defer from the goals I'm trying to reach.

As anyone tryed to do the same thing and used other tools ? I'm seeing possible quickfixes (raycast to check when I go out of the pathmesh ? regular check on the pathmesh ?)... But their must be cleaner ways (I couldn't find EE2.0 pthfind source code so I assume it's not accessible with EE2.0 licence ? ...).

Have a nicea day all !

Animatable class working example

Thu, 24 Apr 2014 09:45:04 +0000

Lectori salutem,

I'm running into a small issue here with getting the OBJ_ANIMATABLE's to work properly, instead of just showing up and mocking me by not animating..

I defined:

Code:

Game.ObjMap ObjAnimatable;

and of course set it's object type to OBJ_ANIMATABLE like so in the InitGame()

Code:

.setObjType(ObjAnimatable    , OBJ_ANIMATABLE     )

the OBJ_ANIMATABLE has the following properties:
Element ID : anim

I created a cube with a turning animation, which works perfectly in the tutorial (following Ozmodian's example, but with 3DS MAX); with the above additions to the project, the cube shows up nicely, but it won't animate.

I changed the params of the cube to fit the example, but still no luck; Am I missing something?

Perhaps someone has a working example of the Animatable objects, as there is no OBJ_ANIMATABLE object class in the tutorials?

Reference threads:
http://www.esenthel.com/community/showth...p?tid=7454
http://www.esenthel.com/community/showth...p?tid=6362

EE::Image

Sun, 16 Feb 2014 19:52:47 +0000

Hello~

I have a couple questions regarding the Image class. I'm doing some work with some modified images, but I can't figure a couple things out:

1) What is d? The comments mention depth, but I'm not sure what that means for a 2D image. It doesn't look to be the color depth, as that looks like it's set using the IMAGE_TYPE settings.

2) The Image::Crop function asks for x, y, z, w, h, and d. I figured x and y were the location of the top left corner of a rectangle h high and w wide designating the area to copy to dest, but I haven't been able to get anything but a transparent texture from it, unless I'm copying an entire image.

3) I've been attempting to use Image::color or the pixX() methods to modify the color of some of the pixels in the image, but again, it doesn't seem to make any difference. My best guess is that the pix and color functions are specific to certain IMAGE_TYPES or _MODES. Can IMAGE_2D be modified? How does one properly modify an image?

4) I would like to take a dynamically created image- specifically one stitched together from other existing images- and add it to the Images cache. I have not been able to find a way to do this, aside from(the less than optimal) saving to the hard drive then loading-but even this fails:
myImage.ExportTGA( "tex.tga" );
image_ptr = Images.ptrRequire( "tex.tga" );
This gives me an "Unable to load" error. The exported texture is created, though. Possibly because it's trying to load it before it's finished writing to the hard drive? Either way, I would like to be able to add an asset directly to the cache to be used by UID like images in the editor. Is this possible?

Thanks~

MMO's character : mesh animated with CHR's cskel

Wed, 08 Jan 2014 19:18:38 +0000

Hi,

I have some issues when I try to draw my CHR's cloth
First things first : my cloth has been animated in Maya with the same skeleton used for my CHR mesh.
The idea was to apply the same cskel to my cloth so that it would be drawn exactly at the right moment at the right position.

I placed my cloth drawing in the Inventory class of the MMO code.

In the update function :

Code:

void update(CSkeleton &cskel, Chr *owner)

{

[...]

if (valid(SLOT_BODY))

      {

         Item   &item  =T.item(slots[SLOT_BODY]);

         if (item.type == EQUIP_BASE)

         {

            if(C OrientP *point=cskel.findPoint(8"Base")) // Name of my parent bone's slot.

            {

               //Nothing to be updated here, see draw functions

            }

         }

      }

}

Code:

// draw

   uint drawPrepare(CSkeleton &cskel)

   {

      // draw items in hands

      uint modes=0;

      if(valid(SLOT_ARM_L))

         modes|=item(slots[SLOT_ARM_L]).drawPrepare();

      if(valid(SLOT_ARM_R))

         modes|=item(slots[SLOT_ARM_R]).drawPrepare();

      if(valid(SLOT_HEAD))

         modes|=item(slots[SLOT_HEAD]).drawPrepare();

      if(valid(SLOT_BODY))

         modes|=item(slots[SLOT_BODY]).drawPrepare(cskel); // We're using the CHR's cskel without any fear...

      return modes;

   }

   void drawShadow(CSkeleton &cskel)

   {

      // draw items in hands

      if(valid(SLOT_ARM_L))

         item(slots[SLOT_ARM_L]).drawShadow();

      if(valid(SLOT_ARM_R))

         item(slots[SLOT_ARM_R]).drawShadow();

      if(valid(SLOT_HEAD))

         item(slots[SLOT_HEAD]).drawShadow();

      if(valid(SLOT_BODY))

         item(slots[SLOT_BODY]).drawShadow(cskel);

   }

The problem is that sometimes the cloth isn't drawn(the character is naked.)
Could it be a problem if cskel update ?
Or bad init ?

Thanks for your help !

Is World::update() multi-threaded?

Mon, 16 Dec 2013 07:28:14 +0000

The comments for World::update() state that it calls update on ever active game object. I'm just wondering if this is multi-threaded? i.e. are multi objects being updated at once if the system has more than one CPU core for example?

If not, is this a possibility?

EditorInterface::worldObjGetData Error

Sun, 03 Nov 2013 10:33:08 +0000

Hi,

I'm occasionally getting an "Can't load enum ...." error message when using worldObjGetData();

If I use "selected only", I get it on a few objects in my scene only. If I use it on all objects in the area, I get the error all the time.

What exactly would cause the error? I've tried changing the object class, removed all the params, but it's still causing the error when I select those objects.

I'm using it like this, and don't see anything wrong with this. If I comment out everything but this line, I still get the error. The world is loaded, objects is empty and not used anywhere else..

Code:

// Get all selected objects

   if(EI.worldObjGetData(EI.curWorld(), objects, null, null, true, false))

   {

        ....

    }

Any ideas?

trigger footsteps on embedded object

Thu, 05 Sep 2013 20:33:42 +0000

Hello agian.

I'm working on footsteps now. Basically I play a sound file when animateStepOccured is called, so that part is easy. But to decide on the type of sound, i look at the material below the user. Also very easy:

PHP Code:

Game::World.hmMaterial(p.xz())->user_type; 

I even found some code to play a different sound when the character walks through shallow water.

But what I cannot find out: if the character walks on an object, like a bridge or a wall, how to find out the material type?

That kind of objects is typically embedded in the terrain. Having custom classes for every building, bridge and other object just because I want to know what kind of footstep to play doesn't seem like the right solution. On the other hand, playing a 'wooden' footstep if on a bridge and a more 'soggy' one when walking below it seems not too far fetched, or does it?

So far i tried:
1. doing a physics ray below the character. But I don't get the objects that are imbedded with the terrain, is that correct?
2. Going through all embedded objects in the current Area and see if there is a Cuts(posBelowActor, embeddedObjectShape). I never get a hit though. I tried the same with terrain_objs instead of embed_objs, but still no hits.

I have included the code for 2. below, for reference. Still, I'd think an easy method to find out the material you walk on, even if it is a terrain object, could be useful for about any game. I hope i've just overlooked something.

Regards,

yvan

PHP Code:

void character::character::animateStepOccured() {
  Vec p = pos();
  p.y = Game::World.hmHeight(p.xz());
  Int type = MUT_DEFAULT;
  if(Game::World.waterUnder(p)) {
    // this means we're just below water level, but still walking
    type = MUT_WATER;
  } else {
    
    p = ctrl.actor.pos();
    p.y -= ctrl.radius() + 0.05;
    if(p.y < Game::World.hmHeight(p.xz(), true)) {
      // get material from the terrain we're walking on
      type = Game::World.hmMaterial(p.xz())->user_type;
    } else {
      // char is somewhere above terrain, but walking
      // so check for object right below character
      Int type = MUT_VOID;   
      Game::Area * area = Game::World.areaActive(Game::World.worldToArea(pos().xz()));
      if (area != NULL) {
        REPA(area->data()->embed_objs) {
          if(Cuts(p, area->data()->embed_objs[i].actor.shape(false))) {
            const MeshPtr m = area->data()->embed_objs[i].mesh();
            REPAD(j, m->parts) {
              if (Equal(m->parts[j].name, "material")) {
                type =  m->parts[j].material()->user_type;
                break;
              }
            }
            break;
          }
        }
      }
    }
    switch(type) {
      case MUT_WATER: {
        _stepsWater[Random(7)].play().pos(YSEVec(T.pos())).speed(RandomF(0.95, 1.05));
        break;
      }  
      case MUT_STONE:
      case MUT_ROAD: {
        _stepsStone[Random(5)].play().pos(YSEVec(T.pos())).speed(RandomF(0.95, 1.05));
        break;
      }
      case MUT_PLANT: {
        _stepsGrass[Random(5)].play().pos(YSEVec(T.pos())).speed(RandomF(0.95, 1.05));
        break;
      }
      case MUT_METAL: {
        _stepsMetal[Random(4)].play().pos(YSEVec(T.pos())).speed(RandomF(0.95, 1.05));
        break;
      }
      case MUT_WOOD: {
        _stepsWood[Random(4)].play().pos(YSEVec(T.pos())).speed(RandomF(0.95, 1.05));
        break;
      }
      case MUT_SNOW:
      case MUT_ICE: {
        _stepsSnow[Random(5)].play().pos(YSEVec(T.pos())).speed(RandomF(0.95, 1.05));
        break;
      }
      case MUT_VOID: break;
      default: {
        _stepsWoodland[Random(8)].play().pos(YSEVec(T.pos())).speed(RandomF(0.95, 1.05));
        break;
      }
    }
  }
} 

Game Object classes Source Code in ES

Thu, 08 Aug 2013 07:04:37 +0000

I was wondering if Greg or any other kind soul could possible upload the Game Object classes source in Esenthel Script format (or just plain text, but ES text). I got into the bad habit of only working with Esenthel and since I never actually did know a lot of objective C++ I have a hard time understanding what's going on there.

So could you please be so kind and offer those codes in es also? It should be easy, and it's not like I'm asking for something we don't already have. It would just save me lots of hours of trying to understand what's going on there.

'Const' objects and savings

Fri, 26 Jul 2013 10:24:27 +0000

Hi Esenthel and Community,

i think there is some problem in the saving of the 'const' objects. when placed the 'const' objects directly in the map EE doesn't save them as expected. But when i create the 'const' objects it does gets saved.

i found out, when creating objects dynamically, the const=true parameter gets replaced right after calling the Game::Chr create() function.

is this some kind of fault or maybe i'm doing something wrong.

thanks,

FontDefault.load()

Wed, 03 Jul 2013 21:45:38 +0000

So i think im having one of those days, however how does one pass a Font UID to load, when .load() expects a string?

-J

LOL figured it out, COPY then Ctrl+V the FileID

-J