92 lines
2.2 KiB
C++
92 lines
2.2 KiB
C++
#include "physics.h"
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Physics::Physics()
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{
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m_gravity = XMVectorSet(0.0f, -9.81f, 0.0f, 0.0f); // Initialize the gravity vector
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}
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Physics::Physics(const Physics& other)
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{
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m_gravity = other.m_gravity; // Copy the gravity value
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}
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Physics::~Physics()
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{
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}
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// Get the gravity value
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XMVECTOR Physics::GetGravity() const
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{
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return m_gravity;
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}
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// Define the gravity value
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void Physics::SetGravity(XMVECTOR gravity)
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{
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m_gravity = gravity;
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}
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// Apply gravity to an object
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void Physics::ApplyGravity(Object* object, float frameTime)
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{
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if (object == nullptr) // Verify if the object is not null
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{
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return;
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}
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// Calculate the acceleration caused by gravity
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XMVECTOR gravityAcceleration = m_gravity / object->GetMass();
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// Add the gravity acceleration to the object's current acceleration
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object->SetAcceleration(object->GetAcceleration() + gravityAcceleration);
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// Get the object velocity
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XMVECTOR velocity = object->GetVelocity();
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// Update the velocity with the object's acceleration
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velocity += object->GetAcceleration() * frameTime;
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// Set the new velocity
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object->SetVelocity(velocity);
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}
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void Physics::ApplyDrag(Object* object, float dragValue, float frameTime)
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{
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if (object == nullptr) // Verify if the object is not null
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{
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return;
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}
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// Calculate the acceleration caused by drag
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XMVECTOR dragAcceleration = -object->GetVelocity() * dragValue / object->GetMass();
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// Add the drag acceleration to the object's current acceleration
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object->SetAcceleration(object->GetAcceleration() + dragAcceleration);
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// Get the velocity of the object
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XMVECTOR velocity = object->GetVelocity();
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// Update the velocity with the object's acceleration
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velocity += object->GetAcceleration() * frameTime;
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// Set the new velocity
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object->SetVelocity(velocity);
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}
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void Physics::ApplyForce(Object* object, XMVECTOR force)
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{
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if (object == nullptr) // Verify if the object is not null
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{
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return;
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}
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// Get the mass of the object
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float mass = object->GetMass();
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// Calculate the acceleration caused by the force
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XMVECTOR acceleration = force / mass;
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// Add the acceleration to the object's current acceleration
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object->SetAcceleration(object->GetAcceleration() + acceleration);
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} |