45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
#include "pch.h"
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#include "TCircle.h"
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#include "TBall.h"
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#include "TCollisionComponent.h"
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#include "TTableLayer.h"
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TCircle::TCircle(TCollisionComponent* collComp, char* activeFlag, unsigned collisionGroup, vector2* center,
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float radius): TEdgeSegment(collComp, activeFlag, collisionGroup)
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{
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Circle.RadiusSq = radius * radius;
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Circle.Center = *center;
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}
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float TCircle::FindCollisionDistance(const ray_type& ray)
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{
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return maths::ray_intersect_circle(ray, Circle);
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}
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void TCircle::EdgeCollision(TBall* ball, float distance)
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{
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vector2 direction{}, nextPosition{};
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nextPosition.X = distance * ball->Direction.X + ball->Position.X;
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nextPosition.Y = distance * ball->Direction.Y + ball->Position.Y;
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direction.X = nextPosition.X - Circle.Center.X;
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direction.Y = nextPosition.Y - Circle.Center.Y;
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maths::normalize_2d(direction);
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CollisionComponent->Collision(ball, &nextPosition, &direction, distance, this);
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}
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void TCircle::place_in_grid(RectF* aabb)
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{
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if(aabb)
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{
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const auto radius = sqrt(Circle.RadiusSq);
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aabb->Merge({
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Circle.Center.X + radius, Circle.Center.Y + radius,
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Circle.Center.X - radius, Circle.Center.Y - radius
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});
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}
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TTableLayer::edges_insert_circle(&Circle, this, nullptr);
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}
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