Destructible Objects without using Physx?? OpenSource/MIT/BSD/Zlib

[FatKat]

Hello I am relatively new to T3D and programming/scripting. I have done the FPS video and have a few T3D books including David Wyand's "T3D Game Development Cookbool," Brad Strong's "Creating game art for 3d Engines" and Finney's 3rd edition "3D Game Programming All in One." I am also waiting on Fritzen's online book but did not get a download link after using paypal.

I would prefer to implement Destructible Objects without Physx is this possible? Do people have advice or examples of how to accomplish this? Preferably the solution would be open source and ideally MIT/BSD/Zlib. Any help on this would be appreciated.

link to this post at garage games:

https://www.garagegames.com/community/forums/viewthread/142553

[Azaezel]

Ancient code is ancient, but you mean somethin like this?

function RigidShapeData::onDisabled(%this,%obj,%state)
{
%obj.setDamageFlash(0.75);

radiusDamage(%obj, %obj.getPosition(), %obj.dataBlock.explosionRadius, %obj.dataBlock.explosionDamage, 1, 500.0);

// Schedule corpse removal. Just keeping the place clean.
//%obj.schedule($RigidShapeTimeoutValue - 1000, "startFade", 1000, 0, true);
%obj.schedule($RigidShapeTimeoutValue, "delete");
schedule($RigidShapeTimeoutValue + 1, 0, "createsubobject", %obj.getTransform(), %obj.dataBlock.subobject, %obj.dataBlock.subobjectcount, %obj.dataBlock.explosionRadius);
}

function createsubobject(%pos, %data, %count, %radius)
{
%mask = ($TypeMasks::VehicleObjectType);
for (%i=0; %i < %count; %i++)
{
	%x = getword(%pos,0) + (getRandom() - 0.5) * %radius;
	%y = getword(%pos,1) + (getRandom() - 0.5) * %radius;
	%z = getword(%pos,2) + (getRandom() - 0.5) * %radius;
	%subpos = %x SPC %y SPC %z SPC "1 0 0 0";
	if (ContainerBoxEmpty(%mask, %subpos, %radius/4)) 
	{
		%newsub = %data.create(%data);
		%newsub.setTransform(%subpos);
		// Apply the impulse
		%impulseVec = VectorSub(%subpos,%pos);
		%impulseVec = VectorNormalize(%impulseVec);
		%impulseVec = VectorScale(%impulseVec, 200);
		%newsub.applyImpulse(%subpos, %impulseVec);
		//error(%impulseVec);
		MissionCleanup.Add(%newsub);
	}
}
}

 

//-----------------------------------------------------------------------------
datablock RigidShapeData( Asteroid1 )
{	

  category = "RigidShape";

  shapeFile = "scriptsAndAssets/data/shapes/rocks/asteroid.DTS";
  emap = true;

  // Rigid Body
  mass = 50;
  massCenter = "0 0 0";    // Center of mass for rigid body
  massBox = "0 0 0";         // Size of box used for moment of inertia,
                             // if zero it defaults to object bounding box
  drag = 0.0;                // Drag coefficient
  bodyFriction = 0.0;
  bodyRestitution = 0.1;
  minImpactSpeed = 1;        // Impacts over this invoke the script callback
  softImpactSpeed = 1;       // Play SoftImpact Sound
  hardImpactSpeed = 2;      // Play HardImpact Sound
  integration = 64;           // Physics integration: TickSec/Rate
  collisionTol = 0.1;        // Collision distance tolerance
  contactTol = 0.1;          // Contact velocity tolerance

  minRollSpeed = 10;

  maxDrag = 0.0;
  minDrag = 0.00;

  triggerDustHeight = 1;
  dustHeight = 10;

  dragForce = 0.05;
  vertFactor = 0.05;

  normalForce = 0.5;
  restorativeForce = 0.5;
  rollForce = 0.5;
  pitchForce = 0.5;

  Gravity = 0.0;

  // Explosion and debris setup
explosion = SmallExplosion;
underwaterExplosion = SmallExplosion;
  explosionDamage = 20;         // How much damage is applied through a radiusDamage function call
  explosionRadius = 20;         // the radius for the radiusDamage function call //also deytermines radius for subspawns
  debris = ScoutDebris;         // the debris datablock
  renderWhenDestroyed = false;  // don't render normal shape when destroyed, only debris shape

subobject = NULL;
subobjectcount = 0;
  name = "Asteroid";

  maxDamage = 1;              // total damage until explosion
  destroyedLevel = 1.40;
maxEnergy = 1000;
energyPerDamagePoint = 1;
rechargeRate = 0.1;
};

datablock RigidShapeData( Asteroid2 : Asteroid1 )
{	
  shapeFile = "scriptsAndAssets/data/shapes/rocks/asteroid2.DTS";
  maxDamage = 10;              // total damage until explosion
mass = 100;
explosion = MediumExplosion;
underwaterExplosion = MediumExplosion;
  	explosionDamage = 80;
explosionRadius = 80;
subobject = Asteroid1;
subobjectcount = 8;
  name = "Asteroid";
};

datablock RigidShapeData( Asteroid3 : Asteroid1 )
{	
  shapeFile = "scriptsAndAssets/data/shapes/rocks/asteroid3.DTS";
  maxDamage = 100;              // total damage until explosion
mass = 500;
explosion = LargeExplosion;
underwaterExplosion = LargeExplosion;
explosionDamage = 160;
explosionRadius = 160;
subobject = Asteroid2;
subobjectcount = 4;
  name = "Asteroid";
};

[buckmaster]

There was an excellent tutorial series on simple destroyable shapes. I collected all the links here but haven't ported them to the wiki yet.