GL - first implementation of weapons forcepull with pickup functionallity

Code/Game/GameLogic/AttatchmentMassDriver.cpp

@@ -9,12 +9,16 @@ using namespace GameLogic;
 AttatchmentMassDriver::AttatchmentMassDriver(void)
 {
 	this->owner = 0;
+	this->heldObject = NULL;
+	this->hasObject = false;
 }
 
 AttatchmentMassDriver::AttatchmentMassDriver(Player &owner)
 {
 	
 	this->owner = &owner;
+	this->heldObject = NULL;
+	this->hasObject = false;
 }
 
 
@@ -37,16 +41,51 @@ void AttatchmentMassDriver::UseAttatchment(const GameLogic::WEAPON_FIRE &usage,
 	case WEAPON_FIRE::WEAPON_USE_SECONDARY_PRESS:
 		ForcePull(usage,dt);
 		break;
+	case WEAPON_FIRE::WEAPON_USE_UTILLITY_PRESS:
+		ForceZip(usage,dt);
+		break;
 	}
 		
 }
 
+void AttatchmentMassDriver::Update(float dt)
+{
+	
+	//update position of heldObject if there is an object being held
+	if(hasObject)
+	{
+		Oyster::Physics::ICustomBody::State state;
+		state = heldObject->GetState();
+
+		Oyster::Math::Float3 pos = owner->GetPosition() + owner->GetLookDir().GetNormalized();
+
+		state.SetCenterPosition(pos);
+
+		heldObject->SetState(state);
+	}
+}
+
 /********************************************************
 * Pushes objects in a cone in front of the weapon when fired
+*alternativly it puts a large force on the currently held object
 ********************************************************/
 void AttatchmentMassDriver::ForcePush(const GameLogic::WEAPON_FIRE &usage, float dt)
 {
-	Oyster::Math::Float4 pushForce = Oyster::Math::Float4(this->owner->GetLookDir()) * (500 * dt);
+	//if the weapon has an object then it is only the object that will be shot away
+	Oyster::Math::Float4 pushForce;
+
+	if(hasObject)
+	{
+		pushForce = Oyster::Math::Float4(this->owner->GetLookDir()) * (800 * dt);
+		Oyster::Physics::ICustomBody::State state = heldObject->GetState();
+		state.ApplyLinearImpulse((Oyster::Math::Float3)pushForce);
+		heldObject->SetState(state);
+		hasObject = false;
+		heldObject = NULL;
+		return;
+	}
+
+	pushForce = Oyster::Math::Float4(this->owner->GetLookDir()) * (500 * dt);
 	Oyster::Math::Float4x4 aim = Oyster::Math3D::ViewMatrix_LookAtDirection(owner->GetLookDir(), owner->GetRigidBody()->GetGravityNormal(), owner->GetPosition());
 
 	Oyster::Math::Float4x4 hitSpace = Oyster::Math3D::ProjectionMatrix_Perspective(Oyster::Math::pi/4,1,1,20); 
@@ -60,7 +99,7 @@ void AttatchmentMassDriver::ForcePush(const GameLogic::WEAPON_FIRE &usage, float
 /********************************************************
 * Pulls the player in the direction he is looking, used for fast movement(kinda like a jetpack)
 ********************************************************/
-void AttatchmentMassDriver::ForcePull(const WEAPON_FIRE &usage, float dt)
+void AttatchmentMassDriver::ForceZip(const WEAPON_FIRE &usage, float dt)
 {
 	Oyster::Physics::Struct::CustomBodyState state = this->owner->GetRigidBody()->GetState();
 
@@ -71,3 +110,32 @@ void AttatchmentMassDriver::ForcePull(const WEAPON_FIRE &usage, float dt)
 }
 
 
+void AttatchmentMassDriver::ForcePull(const WEAPON_FIRE &usage, float dt)
+{
+	if(hasObject) return; //this test checks if the weapon already has something picked up, if so then it cant use this function
+
+	PickUpObject(usage,dt);	//first test if there is a nearby object to pickup
+
+	if(hasObject) return; //this test checks if the weapon has now picked up an object, if so then it shall not apply a force to suck in objects
+	
+
+	//if no object has been picked up then suck objects towards you
+	Oyster::Math::Float4 pushForce = Oyster::Math::Float4(this->owner->GetLookDir()) * (100 * dt);
+	Oyster::Math::Float4x4 aim = Oyster::Math3D::ViewMatrix_LookAtDirection(owner->GetLookDir(), owner->GetRigidBody()->GetGravityNormal(), owner->GetPosition());
+
+	Oyster::Math::Float4x4 hitSpace = Oyster::Math3D::ProjectionMatrix_Perspective(Oyster::Math::pi/4,1,1,20); 
+	Oyster::Collision3D::Frustrum hitFrustum = Oyster::Collision3D::Frustrum(Oyster::Math3D::ViewProjectionMatrix(aim,hitSpace));
+	forcePushData args;
+	args.pushForce = -pushForce;
+
+	Oyster::Physics::API::Instance().ApplyEffect(hitFrustum,&args,ForcePushAction);
+}
+
+void AttatchmentMassDriver::PickUpObject(const WEAPON_FIRE &usage, float dt)
+{
+	Oyster::Math::Float4 pos = owner->GetPosition() + owner->GetLookDir().GetNormalized();
+	Oyster::Collision3D::Sphere hitSphere = Oyster::Collision3D::Sphere(pos,1);
+
+	Oyster::Physics::API::Instance().ApplyEffect(hitSphere,this,AttemptPickUp);
+
+}

Code/Game/GameLogic/AttatchmentMassDriver.h

@@ -16,29 +16,42 @@ namespace GameLogic
 
 
 		void UseAttatchment(const WEAPON_FIRE &usage, float dt);
+		void Update(float dt);
 
 	private:
 		/********************************************************
 		* Pushes objects and players in a cone in front of the player
-		* @param fireInput: allows switching on different functionality in this specific function
+		* @param usage: allows switching on different functionality in this specific function
 		********************************************************/
 		void ForcePush(const WEAPON_FIRE &usage, float dt);
 
 		/********************************************************
 		* Pulls the player forward, this is a movement tool
-		* @param fireInput: allows switching on different functionality in this specific function
+		* @param usage: allows switching on different functionality in this specific function
+		********************************************************/
+		void ForceZip(const WEAPON_FIRE &usage, float dt);
+
+		/********************************************************
+		* Sucks objects towards the player, the player can then pick up an object and throw it as a projectile
+		* @param usage: allows switching on different functionality in this specific function
 		********************************************************/
 		void ForcePull(const WEAPON_FIRE &usage, float dt);
 
 		/********************************************************
 		* Sucks objects towards the player, the player can then pick up an object and throw it as a projectile
-		* @param fireInput: allows switching on different functionality in this specific function
+		* @param usage: allows switching on different functionality in this specific function
 		********************************************************/
-		void ForceSuck(const WEAPON_FIRE &usage, float dt);
+		void PickUpObject(const WEAPON_FIRE &usage, float dt);
+
 
 		static void ForcePushAction(Oyster::Physics::ICustomBody *obj, void* args);
+		static void AttemptPickUp(Oyster::Physics::ICustomBody *obj, void* args);
+
+		
 
 	private:
+		Oyster::Physics::ICustomBody *heldObject;
+		bool hasObject;
 
 	};
 }

Code/Game/GameLogic/CollisionManager.cpp

@@ -5,6 +5,7 @@
 #include "Level.h"
 #include "AttatchmentMassDriver.h"
 #include "Game.h"
+#include "CollisionManager.h"
 
 using namespace Oyster;
 
@@ -77,6 +78,13 @@ using namespace GameLogic;
 	{
 		return Physics::ICustomBody::SubscriptMessage_ignore_collision_response;
 	}
+
+	Oyster::Physics::ICustomBody::SubscriptMessage CollisionManager::IgnoreCollision(Oyster::Physics::ICustomBody *rigidBody, Oyster::Physics::ICustomBody *obj)
+	{
+		return Physics::ICustomBody::SubscriptMessage_ignore_collision_response;
+	}
+
+
 	Oyster::Physics::ICustomBody::SubscriptMessage Level::LevelCollisionAfter(Oyster::Physics::ICustomBody *rigidBodyLevel, Oyster::Physics::ICustomBody *obj, Oyster::Math::Float kineticEnergyLoss)
 	{
 		return Physics::ICustomBody::SubscriptMessage_ignore_collision_response;
@@ -94,3 +102,32 @@ using namespace GameLogic;
 		state.ApplyLinearImpulse(((forcePushData*)(args))->pushForce);
 		obj->SetState(state);
 	}
+
+	void AttatchmentMassDriver::AttemptPickUp(Oyster::Physics::ICustomBody *obj, void* args)
+	{
+		AttatchmentMassDriver *weapon = ((AttatchmentMassDriver*)args);
+
+		if(weapon->hasObject)
+		{
+			//do nothing
+		}
+		else
+		{
+			Object* realObj = (Object*)(obj->GetCustomTag());
+			//check so that it is an object that you can pickup
+
+			switch(realObj->GetObjectType())
+			{
+			case OBJECT_TYPE::OBJECT_TYPE_BOX:
+				obj->SetGravity(true); //will now ignore gravity, dont mind the naming
+				//move obj to limbo in physics to make sure it wont collide with anything
+				weapon->heldObject = obj; //weapon now holds the object
+				weapon->hasObject = true;
+
+				break;
+			}
+			
+		}
+		
+
+	}

Code/Game/GameLogic/CollisionManager.h

@@ -11,6 +11,7 @@ namespace GameLogic
 	{
 	public:
 		//put general collision functions here that are not part of a specific object
+		static Oyster::Physics::ICustomBody::SubscriptMessage IgnoreCollision(Oyster::Physics::ICustomBody *rigidBody, Oyster::Physics::ICustomBody *obj);
 			
 	};
 

Code/Game/GameLogic/IAttatchment.h

@@ -20,6 +20,7 @@ namespace GameLogic
 		~IAttatchment(void);
 
 		virtual void UseAttatchment(const WEAPON_FIRE &usage, float dt) = 0;
+		virtual void Update(float dt) = 0;
 
 	private:
 

Code/Game/GameLogic/Object.h

@@ -35,8 +35,8 @@ namespace GameLogic
 		Oyster::Physics::ICustomBody* GetRigidBody();
 		void ApplyLinearImpulse(Oyster::Math::Float3 force);
 
-		void BeginFrame();
-		void EndFrame();
+		virtual void BeginFrame();
+		virtual void EndFrame();
 
 		void setBeforeCollisonFunc(Oyster::Physics::ICustomBody::SubscriptMessage (*collisionFuncBefore)(Oyster::Physics::ICustomBody *proto,Oyster::Physics::ICustomBody *deuter));
 		void setAfterCollisonFunc(Oyster::Physics::ICustomBody::SubscriptMessage (*collisionFuncAfter)(Oyster::Physics::ICustomBody *proto,Oyster::Physics::ICustomBody *deuter,Oyster::Math::Float kineticEnergyLoss));

Code/Game/GameLogic/Player.cpp

@@ -58,6 +58,18 @@ Player::~Player(void)
 	}	
 }
 
+void Player::BeginFrame()
+{
+	weapon->Update(0.002f);
+	Object::BeginFrame();
+}
+
+void Player::EndFrame()
+{
+	
+	Object::EndFrame();
+}
+
 void Player::Move(const PLAYER_MOVEMENT &movement)
 {
 	switch(movement)

Code/Game/GameLogic/Player.h

@@ -71,6 +71,9 @@ namespace GameLogic
 
 		void DamageLife(int damage);
 
+		void BeginFrame();
+		void EndFrame();
+
 	private:
 		void Jump();
 

Code/Game/GameLogic/StaticObject.cpp

@@ -1,4 +1,5 @@
 #include "StaticObject.h"
+#include "CollisionManager.h"
 
 using namespace GameLogic;
 
@@ -17,7 +18,8 @@ StaticObject::StaticObject(OBJECT_TYPE type)
 StaticObject::StaticObject(Oyster::Physics::ICustomBody *rigidBody, OBJECT_TYPE type)
 	:Object(rigidBody,type)
 {
-
+	this->rigidBody->SetGravity(true);
+	this->rigidBody->SetSubscription((Oyster::Physics::ICustomBody::EventAction_BeforeCollisionResponse)(CollisionManager::IgnoreCollision));
 }
 
 StaticObject::StaticObject(void* collisionFuncBefore, void* collisionFuncAfter, OBJECT_TYPE type)

Code/Game/GameLogic/Weapon.cpp

@@ -126,3 +126,8 @@ void Weapon::SelectAttatchment(int socketID)
 	}
 	
 }
+
+void Weapon::Update(float dt)
+{
+	selectedAttatchment->Update(dt);
+}

Code/Game/GameLogic/Weapon.h

@@ -20,6 +20,7 @@ namespace GameLogic
 		~Weapon(void);
 
 		void Use(const WEAPON_FIRE &usage, float dt);
+		void Update(float dt);
 
 		void AddNewAttatchment(IAttatchment *attatchment, Player *owner);
 		void SwitchAttatchment(IAttatchment *attatchment, int socketID, Player *owner);