physics.h File Reference

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Functions
void	PhysicsUpdate (CWorld *ThisWorld)
	main physics engine
void	PhysicsDampedCollision (CObject *ObjA, CObject *ObjB)
	perform damped collision response simulation
void	PhysicsElasticCollision (CObject *ObjA, CObject *ObjB)
	perform elastic collision response simulation
void	PhysicsStop (CObject *ObjA, CObject *ObjB)
	halt an object
void	PhysicsReflect (CWorld *ThisWorld, CObject *ObjA, CObject *ObjB)
	reflect an object's velocity
void	UpdateBody (CObject *body, float timeDelta)
	update body's position & orientation
void	DamageRadius (CWorld *ThisWorld, Vector pos, float rad, float dam)
	damages objects within a certain range

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Function Documentation

void DamageRadius	(	CWorld *	ThisWorld,
		Vector	pos,
		float	rad,
		float	dam
	)

This function inflicts damage on world objects based on their proximity to a 2D position passed as a vector to this function, and a radius value. Also a damage factor is passed to describe the amount of damage to be taken when the object in question is at a distance of zero from the origin of the damage area.

Definition at line 319 of file physics.cpp.

References CObject::iHealth, CObject::iType, Vector::Magnitude(), CObject::Next, CWorld::Objects, CObject::Position, TYPEID_WALL_BLOCK, and CObject::Velocity.

Referenced by RemoveDeadObjects().

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void PhysicsDampedCollision	(	CObject *	ObjA,
		CObject *	ObjB
	)

Simulate a damped collision response resulting from ObjA colliding with ObjB.

Definition at line 141 of file physics.cpp.

Referenced by Collide().

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void PhysicsElasticCollision	(	CObject *	ObjA,
		CObject *	ObjB
	)

Simulate a elastic collision response resulting from ObjA colliding with ObjB.

Definition at line 152 of file physics.cpp.

Referenced by Collide().

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void PhysicsReflect	(	CWorld *	ThisWorld,
		CObject *	ObjA,
		CObject *	ObjB
	)

Reflect ObjA's velocity with respect to ObjB's position relative to ObjA. For example, if ObjA is below ObjB and ObjA is moving upwards, reflect ObjA's velocity along the Y axis.

Definition at line 209 of file physics.cpp.

References CWorld::AddEffect(), EFFECTID_MINISHOCK, CObject::iType, CEffect::MShock, CObject::Position, MiniShock::SetColor(), TYPEID_BOUNCY_SHOT, CObject::Velocity, Vector::x, and Vector::y.

Referenced by Collide().

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void PhysicsStop	(	CObject *	ObjA,
		CObject *	ObjB
	)

Stop object A, relative to object B.

Definition at line 162 of file physics.cpp.

References CObject::OldPosition, CObject::Position, CObject::Velocity, Vector::x, and Vector::y.

Referenced by Collide().

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void PhysicsUpdate

(

CWorld *

ThisWorld

)

Do all the physics calculations here, updating the referenced world's objects positions.

Definition at line 33 of file physics.cpp.

References CObject::fAngle, CObject::fSubAngle, GameLogicFire(), CObject::iInput, INPUT_FIRE, INPUT_LEFT, CObject::iOwnCount, CObject::Next, NUM_PLAYERS, CWorld::Objects, CObject::OldPosition, CWorld::Player, and CObject::Position.

Referenced by PlayGame().

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void UpdateBody	(	CObject *	body,
		float	timeDelta
	)

This function updates a world object's physical properties based on the physics model implemented in the game. Effects such as friction are taken in to account and applied to model the objects physical behavior as it exists in the game environment.

Definition at line 273 of file physics.cpp.

References DegreesToRadians(), CObject::fAngle, CObject::iType, Vector::Magnitude(), MAX_TANK_SPEED, TANK_FCR_LATERAL, TANK_FCR_MEDIAL, TYPEID_TANK, TYPEID_WOOD_BLOCK, CObject::Velocity, VRotate2D(), Vector::x, Vector::y, and Vector::z.

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Copyright Windsor Schmidt 2006 - All rights reserved.