Serious-Engine/Sources/Entities/Debris.es

602
%{
#include "Entities/StdH/StdH.h"
%}

uses "Entities/BasicEffects";

enum DebrisParticlesType {
  0 DPT_NONE        "",   // no particles
  1 DPT_BLOODTRAIL  "",   // blood
  2 DPR_SMOKETRAIL  "",   // smoke
  3 DPR_SPARKS      "",   // sparks (for robots)
  4 DPR_FLYINGTRAIL "",   // just flying object
};

// input parameter for spawning a debris
event ESpawnDebris {
  EntityInfoBodyType Eeibt,       // body type
  CModelData *pmd,                // model for this debris
  FLOAT fSize,                    // stretch factor
  CTextureData *ptd,              // texture for this debris
  CTextureData *ptdRefl,          // reflection texture
  CTextureData *ptdSpec,          // specular texture
  CTextureData *ptdBump,          // bump texture
  INDEX iModelAnim,               // animation for debris model
  enum DebrisParticlesType dptParticles,   // particles type
  enum BasicEffectType  betStain, // stain left when touching brushes
  COLOR colDebris,                // multiply color for debris
};

%{
%}

class CDebris: CMovableModelEntity {
name      "Debris";
thumbnail "";

properties:

  1 enum DebrisParticlesType m_dptParticles = DPT_NONE,       // type of particles
  2 INDEX m_iBodyType = 0,                      // body type of this debris
  3 BOOL m_bFade = FALSE,                       // fade debris
  4 FLOAT m_fFadeStartTime = 0.0f,              // fade start time
  5 FLOAT m_fFadeTime = 0.0f,                   // fade time
  6 FLOAT3D m_fLastStainHitPoint = FLOAT3D(0,0,0), // last stain hit point
  7 enum BasicEffectType m_betStain = BET_NONE, // type of stain left
  8 INDEX m_ctLeftStains = 0,                   // count of stains already left
  9 FLOAT m_tmStarted = 0.0f,                   // time when spawned


components:

  1 class   CLASS_BASIC_EFFECT  "Classes\\BasicEffect.ecl",


functions:

  /* Entity info */
  void *GetEntityInfo(void) {
    return GetStdEntityInfo((EntityInfoBodyType)m_iBodyType);
  };

  /* Receive damage */
  void ReceiveDamage(CEntity *penInflictor, enum DamageType dmtType,
    FLOAT fDamageAmmount, const FLOAT3D &vHitPoint, const FLOAT3D &vDirection) 
  {
    // cannot be damaged immediately after spawning
    if ((_pTimer->CurrentTick()-m_tmStarted<1.0f)
      ||((dmtType==DMT_CANNONBALL_EXPLOSION) && (_pTimer->CurrentTick()-m_tmStarted<5.0f))) {
      return;
    }
    CMovableModelEntity::ReceiveDamage(penInflictor, dmtType, fDamageAmmount, vHitPoint, vDirection);
  };

/************************************************************
 *                        FADE OUT                          *
 ************************************************************/

  BOOL AdjustShadingParameters(FLOAT3D &vLightDirection, COLOR &colLight, COLOR &colAmbient)
  {
    if (m_bFade) {
      FLOAT fTimeRemain = m_fFadeStartTime + m_fFadeTime - _pTimer->CurrentTick();
      if (fTimeRemain < 0.0f) { fTimeRemain = 0.0f; }
      COLOR colAlpha = GetModelObject()->mo_colBlendColor;
      colAlpha = (colAlpha&0xffffff00) + (COLOR(fTimeRemain/m_fFadeTime*0xff)&0xff);
      GetModelObject()->mo_colBlendColor = colAlpha;
    }
    
    return FALSE;
  };



/************************************************************
 *                        EFFECTS                           *
 ************************************************************/

  // leave a stain where hit
  void LeaveStain(void)
  {
    // if no stains
    if (m_betStain==BET_NONE) {
      // do nothing
      return;
    }

    // don't allow too many stains to be left
    if (m_ctLeftStains>5) {
      return;
    }
    ESpawnEffect ese;
    FLOAT3D vPoint;
    FLOATplane3D plPlaneNormal;
    FLOAT fDistanceToEdge;

    // on plane
    if (GetNearestPolygon(vPoint, plPlaneNormal, fDistanceToEdge)) {
      // away from last hit point and near to polygon
      if ((m_fLastStainHitPoint-vPoint).Length()>3.0f && 
          (vPoint-GetPlacement().pl_PositionVector).Length()<3.5f) {
        m_fLastStainHitPoint = vPoint;
        // stain
        ese.colMuliplier = C_WHITE|CT_OPAQUE;
        ese.betType = m_betStain;
        ese.vNormal = FLOAT3D(plPlaneNormal);
        GetNormalComponent( en_vCurrentTranslationAbsolute, plPlaneNormal, ese.vDirection);
        FLOAT fLength = ese.vDirection.Length() / 7.5f;
        fLength = Clamp( fLength, 1.0f, 15.0f);
        ese.vStretch = FLOAT3D( 1.0f, fLength*1.0f, 1.0f);
        SpawnEffect(CPlacement3D(vPoint+ese.vNormal/50.0f*(FRnd()+0.5f), ANGLE3D(0, 0, 0)), ese);
        m_ctLeftStains++;
      }
    }
  };

  // spawn effect
  void SpawnEffect(const CPlacement3D &plEffect, const class ESpawnEffect &eSpawnEffect)
  {
    CEntityPointer penEffect = CreateEntity(plEffect, CLASS_BASIC_EFFECT);
    penEffect->Initialize(eSpawnEffect);
  };

  // particles
  void RenderParticles(void)
  {
    // if going too slow
    if (en_vCurrentTranslationAbsolute.Length()<0.1f) {
      // don't render particles
      return;
    }
    switch(m_dptParticles) {
    case DPT_BLOODTRAIL: {
      Particles_BloodTrail( this);
                         } break;
    case DPR_SMOKETRAIL: {
      Particles_GrenadeTrail( this);
                         } break;
    case DPR_SPARKS:     {
      Particles_ColoredStarsTrail( this);
                         } break;
    case DPR_FLYINGTRAIL:{
      //Particles_WhiteLineTrail( this);
      Particles_BombTrail( this);
                         } break;
    default: ASSERT(FALSE);
    case DPT_NONE:
      return;
    }
  };

  // explode
  void Explode(void)
  {
    // spawn explosion
    CPlacement3D plExplosion = GetPlacement();
    CEntityPointer penExplosion = CreateEntity(plExplosion, CLASS_BASIC_EFFECT);
    ESpawnEffect eSpawnEffect;
    eSpawnEffect.colMuliplier = C_WHITE|CT_OPAQUE;
    eSpawnEffect.betType = BET_BOMB;
    eSpawnEffect.vStretch = FLOAT3D(0.3f,0.3f,0.3f);
    penExplosion->Initialize(eSpawnEffect);
  }

/************************************************************
 *                          MAIN                            *
 ************************************************************/

procedures:

  Main(ESpawnDebris eSpawn)
  {
    InitAsModel();
    SetPhysicsFlags(EPF_MODEL_BOUNCING|EPF_CANFADESPINNING);
    SetCollisionFlags(ECF_DEBRIS);
    SetFlags(GetFlags() | ENF_SEETHROUGH);
    SetHealth(25.0f);
    en_fBounceDampNormal   = 0.15f;
    en_fBounceDampParallel = 0.5f;
    en_fJumpControlMultiplier = 0.0f;

    // set density
    if (eSpawn.Eeibt==EIBT_ICE) {
      en_fDensity = 500.0f;
    } else if (eSpawn.Eeibt==EIBT_WOOD) {
      en_fDensity = 500.0f;
    } else if (eSpawn.Eeibt==EIBT_FLESH) {
      en_fDensity = 5000.0f;
      en_fBounceDampNormal   = 0.25f;
      en_fBounceDampParallel = 0.75f;
    } else if (TRUE) {
      en_fDensity = 5000.0f;
    }

    // set appearance
    m_dptParticles = eSpawn.dptParticles,
    m_betStain = eSpawn.betStain;
    m_iBodyType = (INDEX)eSpawn.Eeibt;
    GetModelObject()->SetData(eSpawn.pmd);
    GetModelObject()->mo_toTexture.SetData(eSpawn.ptd);
    GetModelObject()->mo_toReflection.SetData(eSpawn.ptdRefl);
    GetModelObject()->mo_toSpecular.SetData(eSpawn.ptdSpec);
    GetModelObject()->mo_toBump.SetData(eSpawn.ptdBump);
    GetModelObject()->PlayAnim(eSpawn.iModelAnim, AOF_LOOPING);
    GetModelObject()->mo_Stretch = FLOAT3D( eSpawn.fSize, eSpawn.fSize, eSpawn.fSize);
    // adjust color
    GetModelObject()->mo_colBlendColor = eSpawn.colDebris|CT_OPAQUE;

    ModelChangeNotify();
    FLOATaabbox3D box;
    GetBoundingBox(box);
    FLOAT fEntitySize = box.Size().MaxNorm();
    if (fEntitySize>0.5f) {
      SetCollisionFlags(ECF_MODEL);
    }
    en_fCollisionSpeedLimit+=ClampDn(0.0f, fEntitySize*10.0f);
    m_bFade = FALSE;
    m_fLastStainHitPoint = FLOAT3D(32000.0f, 32000.0f, 32000.0f);
    m_ctLeftStains = 0;
    m_tmStarted = _pTimer->CurrentTick();

    // wait some time
    wait(FRnd()*2.0f + 3.0f) {
      on (EBegin) : { resume; }
      // if touched something
      on (ETouch etouch) : {
        // if it is brush
        if (etouch.penOther->GetRenderType()==RT_BRUSH) {
          // maybe leave stain
          LeaveStain();
          // if robot
          if (m_iBodyType==EIBT_ROBOT) {
            // explode
            Explode();
            SendEvent(EDeath());
            resume;
          }
        }
        resume;
      }
      on (EDeath) : { Destroy(); return; }
      on (ETimer) : { stop; }
    }

    // fade away
    SetCollisionFlags(ECF_DEBRIS);
    m_fFadeStartTime = _pTimer->CurrentTick();
    m_fFadeTime = 5.0f;
    m_bFade = TRUE;
    autowait(m_fFadeTime);

    // cease to exist
    Destroy();

    return;
  }
};