Changeset 10455 for code/branches/weaponFS15/src/modules/weapons/projectiles/GravityBombField.cc

Timestamp:

May 23, 2015, 7:33:37 PM (9 years ago)

Author:

meggiman

Message:

 

File:

• code/branches/weaponFS15/src/modules/weapons/projectiles/GravityBombField.cc (modified) (9 diffs)

code/branches/weaponFS15/src/modules/weapons/projectiles/GravityBombField.cc

@@ -3 +3 @@
  *
  *  Created on: Apr 2, 2015
- *      Author: meggiman
+ *      Author: Manuel Eggimann
  */
 
@@ -12 +12 @@
         RegisterClass(GravityBombField);
 
-        const float GravityBombField::FORCE_FIELD_LIFETIME = 20;
+        //Change these constants to alter the behaviour of the field.
+        
+        const float GravityBombField::FORCE_FIELD_LIFETIME = 15;
         const float GravityBombField::FORCE_SPHERE_START_RADIUS = 250;
         const float GravityBombField::FORCE_SPHERE_START_STRENGTH = -500;
-        const float GravityBombField::PEAK_EXPLOSION_FORCE = 1e6;
+        const float GravityBombField::PEAK_EXPLOSION_FORCE = 5e4;
         const float GravityBombField::FORCE_FIELD_EXPLOSION_DAMMAGE = 100;
         const float GravityBombField::EXPLOSION_DURATION = 1;
-        const float GravityBombField::EXPLOSION_RADIUS = 400;
+        const float GravityBombField::EXPLOSION_RADIUS = 600;
         const float GravityBombField::PEAK_ANGULAR_VELOCITY = 20;
+        const float GravityBombField::CENTRE_MODEL_END_SIZE = 1.5;
 
         GravityBombField::GravityBombField(Context* context) : ForceField(context),RadarViewable(this, static_cast<WorldEntity*>(this))
         {
                 RegisterObject(GravityBombField);
+                //Initialize variable with their initial values.
                 lifetime_=FORCE_FIELD_LIFETIME;
                 forceStrength_ = FORCE_SPHERE_START_STRENGTH;
                 forceSphereRadius_ = FORCE_SPHERE_START_RADIUS;
+                modelScaling_ = 1;
                 fieldExploded_ = false;
 
@@ -34 +39 @@
                 setCollisionResponse(false);
 
+                //Make the Field visible on Radar and minimap.
                 this->setRadarObjectColour(ColourValue(0.2, 0.2, 1.0,1)); // Blue
                 this->setRadarObjectShape(RadarViewable::Dot);
                 this->setRadarObjectScale(0.5f);
+                
 
                 //Attach Model
                 Model* model = new Model(this->getContext());
                 model->setMeshSource("GravityBomb.mesh"); //Demo Model from SimpleRocket
-                model->scale(3.0f);
+                model->scale(2.5f);
                 bombModel_ = new MovableEntity(context);
                 bombModel_->attach(model);
                 this->attach(bombModel_);
 
-                Backlight* centreLight = new Backlight(context);
-                centreLight->setColour(ColourValue(0.9,0.5,0.5,1));
-                centreLight->setScale(1.0);
-                centreLight->setTrailMaterial("Trail/backlighttrail");
-                centreLight->setMaterial("Examples/Flare");
-                centreLight->setLifetime(20);
-                bombModel_->attach(centreLight);
+                //Add a Backlight to the centre.
+                centreLight_ = new Backlight(context);
+                centreLight_->setColour(ColourValue(0.2,0.9,0.2,1));
+                centreLight_->setScale(0.3);
+                centreLight_->setTrailMaterial("Trail/backlighttrail");
+                centreLight_->setMaterial("Examples/Flare");
+                centreLight_->setLifetime(20);
+                bombModel_->attach(centreLight_);
 
+                //Let the Bomb Modell in the centre rotate in a random direction.
                 Vector3 randomRotation;
                 srand(time(NULL));
@@ -64 +73 @@
                 //Add Collision Shape
                 SphereCollisionShape* collisionShape = new SphereCollisionShape(context);
-                collisionShape->setRadius(3.0);
+                collisionShape->setRadius(10.0);
                 this->attachCollisionShape(collisionShape);
 
+                //Add particle effect to visualize the force field.
                 this->particleSphere_ = new ParticleEmitter(this->getContext());
                 this->attach(this->particleSphere_);
                 particleSphere_->setSource("Orxonox/GravityBombField");
+
+                //Add a sound effect to the field.
+                WorldSound* fieldSound = new WorldSound(context);
+                fieldSound->setSource("sounds/GravityField.ogg");
+                fieldSound->setLooping(true);
+                fieldSound->setVolume(1.0);
+                this->attach(fieldSound);
+                fieldSound->play();
         }
 
         GravityBombField::~GravityBombField(){}
 
+        
         void GravityBombField::tick(float dt)
         {
@@ -79 +98 @@
                 lifetime_-=dt;
 
-                if(lifetime_ > EXPLOSION_DURATION)
+                if(lifetime_ > EXPLOSION_DURATION)//If field is still alive, make it smaller and stronger.
                 {
+                        modelScaling_ += ((CENTRE_MODEL_END_SIZE-1) / FORCE_FIELD_LIFETIME)*dt;
                         forceStrength_ *= (1+dt/10);
                         forceSphereRadius_ = FORCE_SPHERE_START_RADIUS*(1-((FORCE_FIELD_LIFETIME-lifetime_)/FORCE_FIELD_LIFETIME)*((FORCE_FIELD_LIFETIME-lifetime_)/FORCE_FIELD_LIFETIME)*((FORCE_FIELD_LIFETIME-lifetime_)/FORCE_FIELD_LIFETIME));
@@ -86 +106 @@
                 else if(lifetime_ > 0)
                 {
-                        if (!fieldExploded_)
+                        if (!fieldExploded_) // Start the field explosion if it has not been started yet.
                         {
-                                forceStrength_ = PEAK_EXPLOSION_FORCE;
+                                forceStrength_ = pow((EXPLOSION_DURATION + lifetime_),4)/EXPLOSION_DURATION * PEAK_EXPLOSION_FORCE;
                                 fieldExploded_ = true;
 
+                                //Add particle effect to visualize explosion
                                 explosionCross_ = new ParticleEmitter(this->getContext());
+                                explosionCross_->setSource("Orxonox/FieldExplosion");
+                                explosionCross_->setOrientation(rand(), rand(), rand(), rand());
+                                explosionCross_->setScale(0.7);
                                 this->attach(explosionCross_);
-                                explosionCross_->setSource("Orxonox/FieldExplosion");
+
+                                //Add explosion sound effect.
+                                explosionSound_ = new WorldSound(getContext());
+                                explosionSound_->setSource("sounds/GravityFieldExplosion.ogg");
+                                explosionSound_->setVolume(1.0);
+                                explosionSound_->play();
                         }
 
+                        //Check if any pawn is inside the shockwave and hit it with dammage proportional to the distance between explosion centre and pawn. Make sure, the same pawn is damaged only once.
                         for (ObjectList<Pawn>::iterator it = ObjectList<Pawn>::begin(); it != ObjectList<Pawn>::end(); ++it)
                         {
                                 Vector3 distanceVector = it->getWorldPosition()-this->getWorldPosition();
-                                 orxout(debug_output) << "Found Pawn:" << it->getWorldPosition() << endl;
+                                 //orxout(debug_output) << "Found Pawn:" << it->getWorldPosition() << endl;
                                 if(distanceVector.length()< forceSphereRadius_)
                                  {
-                                         orxout(debug_output) << "Force sphere radius is: " << forceSphereRadius_ << " Distance to Pawn is: " << distanceVector.length();
+                                         //orxout(debug_output) << "Force sphere radius is: " << forceSphereRadius_ << " Distance to Pawn is: " << distanceVector.length();
                                          if (std::find(victimsAlreadyDamaged_.begin(),victimsAlreadyDamaged_.end(),*it) == victimsAlreadyDamaged_.end())
                                          {
-                                                 orxout(debug_output) << "Found Pawn to damage: " << it->getWorldPosition() << endl;
+                                                 //orxout(debug_output) << "Found Pawn to damage: " << it->getWorldPosition() << endl;
                                                  float damage = FORCE_FIELD_EXPLOSION_DAMMAGE*(1-distanceVector.length()/EXPLOSION_RADIUS);
-                                                 orxout(debug_output) << "Damage: " << damage << endl;
+                                                 //orxout(debug_output) << "Damage: " << damage << endl;
                                                  it->hit(shooter_, it->getWorldPosition(), NULL, damage, 0,0);
-//                                               it->removeHealth(damage);
                                                  victimsAlreadyDamaged_.push_back(*it);
                                          }
@@ -118 +147 @@
                         explosionCross_->setScale(forceSphereRadius_/FORCE_SPHERE_START_RADIUS);
                 }
-                else if (lifetime_ > -4)
+                else if (lifetime_ > -6) //The field has to exist for 6 more seconds for the particles of the particle effect to vanish smoothly.
                 {
+                        //Make the bomb model invisible, let the strength of the field be zero and remove all particle emitters so the particle effect will slowly vanish.
                         bombModel_->setVisible(false);
                         this->setRadarVisibility(false);
@@ -127 +157 @@
                         explosionCross_->getParticleInterface()->removeAllEmitters();
                 }
-
+                
                 setDiameter(forceSphereRadius_*2);
                 setVelocity(forceStrength_);
-                particleSphere_->setScale(forceSphereRadius_/FORCE_SPHERE_START_RADIUS);
+                if(lifetime_>0) particleSphere_->setScale(forceSphereRadius_/FORCE_SPHERE_START_RADIUS);
+                bombModel_->setScale(modelScaling_);
 
                 if (lifetime_ <= -4)
@@ -141 +172 @@
         void GravityBombField::destroy()
         {
-                //Animation
                 ForceField::destroy();
         }