Justin Marshall
97 lines
3.2 KiB
C++
97 lines
3.2 KiB
C++
#pragma once
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#include "gamelib/effectphysics/effectphysicsproperties.h"
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#include "idlib/math/rotation.h"
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struct impactInfo_t;
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struct trace_t;
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// Recovered type 14579. This record is intentionally independent of the
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// renderer/game declaration layer so effect physics can be used by emitters.
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struct idEffectPhysicsCollision {
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idVec3 collisionPoint;
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idVec3 collisionNormalVelocity;
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int collisionSurfaceType;
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void Clear() {
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collisionPoint.Zero();
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collisionNormalVelocity.Zero();
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collisionSurfaceType = 0;
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}
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};
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class alignas(8) idEffectPhysicsRigidBody {
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public:
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struct effectRBState_t {
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idVec3 position;
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idMat3 orientation;
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idVec3 linearMomentum;
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idVec3 angularMomentum;
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idVec3 externalForce;
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idVec3 externalTorque;
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};
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struct effectRBDelta_t {
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idVec3 translation;
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idRotation rotation;
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idVec3 linearForce;
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idVec3 angularForce;
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};
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idEffectPhysicsRigidBody();
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~idEffectPhysicsRigidBody();
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void Setup(const idEffectPhysicsProperties* props);
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void ApplyImpulse(const idVec3& point, const idVec3& impulse);
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void Update(float deltaTime, float extraMomentumDecay,
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idEffectPhysicsCollision& collision);
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void SetPosition(const idVec3& position, const idMat3& orientation) {
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currentState.position = position;
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currentState.orientation = orientation;
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if (properties != nullptr && properties->broadPhase != nullptr) {
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properties->broadPhase->SetObjectPosition(
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&SPObject, position, orientation, nullptr);
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}
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}
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void SetLinearMomentum(const idVec3& momentum) {
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currentState.linearMomentum = momentum;
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}
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void SetAngularMomentum(const idVec3& momentum) {
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currentState.angularMomentum = momentum;
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}
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void AddForce(const idVec3& force) {
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currentState.externalForce = currentState.externalForce + force;
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}
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void AddTorque(const idVec3& torque) {
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currentState.externalTorque = currentState.externalTorque + torque;
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}
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void Activate() { active = true; settled = false; }
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void PutToRest() { settled = true; SPObject.motion.valid = false; }
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const idEffectPhysicsProperties* properties;
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effectRBState_t currentState;
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idSPObject SPObject;
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bool active;
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bool settled;
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private:
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void CapVelocity(float deltaTime, effectRBState_t& current) const;
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void CollisionImpulse(trace_t& collision, const impactInfo_t& impact,
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float extraMomentumDecay, effectRBState_t& state,
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idVec3& normalVelocity, idVec3& impulse) const;
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void Evolve(float deltaTime, const effectRBState_t& current,
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effectRBDelta_t& delta) const;
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};
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static_assert(sizeof(idEffectPhysicsCollision) == 28,
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"Recovered idEffectPhysicsCollision ABI changed");
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static_assert(sizeof(idEffectPhysicsRigidBody::effectRBState_t) == 96,
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"Recovered effectRBState_t ABI changed");
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static_assert(sizeof(idEffectPhysicsRigidBody::effectRBDelta_t) == 104,
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"Recovered effectRBDelta_t ABI changed");
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#if defined(_WIN32) && !defined(_WIN64)
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static_assert(sizeof(idEffectPhysicsRigidBody) == 272,
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"Recovered idEffectPhysicsRigidBody ABI changed");
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#endif
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