Method getHitPoint

Source/Platformer/UnitAction.cpp:380–405

}

Vec2 Attack::getHitPoint(Body* self, Body* target, const pd::Shape& selfShape) {
	Vec2 hitPoint{};
	float distance = -1;
	auto selfB = self->getPrBody();
	auto targetB = target->getPrBody();
	if (target->getPhysicsWorld() && target->getPhysicsWorld()->getPrWorld()) {
		auto& world = *target->getPhysicsWorld()->getPrWorld();
		const auto transformA = pd::GetTransformation(world, selfB);
		for (pr::ShapeID f : pd::GetShapes(world, targetB)) {
			if (!pd::IsSensor(world, f)) {
				const auto proxyA = pd::GetChild(selfShape, 0);
				const auto shapeB = pd::GetShape(world, f);
				const auto proxyB = pd::GetChild(shapeB, 0);
				const auto transformB = pd::GetTransformation(world, targetB);
				pd::DistanceOutput output = Distance(proxyA, transformA, proxyB, transformB);
				const auto witnessPoints = pd::GetWitnessPoints(output.simplex);
				const auto outputDistance = pr::GetMagnitude(std::get<0>(witnessPoints) - std::get<1>(witnessPoints));
				if (distance == -1 || distance > outputDistance) {
					distance = outputDistance;
					hitPoint = PhysicsWorld::Val(std::get<1>(witnessPoints));
				}
			}
		}
	}
	return hitPoint;
}

// MeleeAttack