Ajout de Jolt Physics + 1ere version des factory entitecomposants - camera, transform, rigidbody, collider, renderer

lib/All/JoltPhysics/TestFramework/Renderer/Frustum.h

@@ -0,0 +1,57 @@
+// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
+// SPDX-FileCopyrightText: 2021 Jorrit Rouwe
+// SPDX-License-Identifier: MIT
+
+#pragma once
+
+#include <Jolt/Geometry/Plane.h>
+#include <Jolt/Geometry/AABox.h>
+
+/// A camera frustum containing of 6 planes (left, right, top, bottom, near, far) pointing inwards
+class [[nodiscard]] Frustum
+{
+public:
+	/// Empty constructor
+					Frustum() = default;
+
+	/// Construct frustum from position, forward, up, field of view x and y and near plane.
+	/// Note that inUp does not need to be perpendicular to inForward but cannot be collinear.
+	inline			Frustum(Vec3Arg inPosition, Vec3Arg inForward, Vec3Arg inUp, float inFOVX, float inFOVY, float inNear)
+	{
+		Vec3 right = inForward.Cross(inUp).Normalized();
+		Vec3 up = right.Cross(inForward).Normalized(); // Calculate the real up vector (inUp does not need to be perpendicular to inForward)
+
+		// Near plane
+		mPlanes[0] = Plane::sFromPointAndNormal(inPosition + inNear * inForward, inForward);
+
+		// Top and bottom planes
+		mPlanes[1] = Plane::sFromPointAndNormal(inPosition, Mat44::sRotation(right, 0.5f * inFOVY) * -up);
+		mPlanes[2] = Plane::sFromPointAndNormal(inPosition, Mat44::sRotation(right, -0.5f * inFOVY) * up);
+
+		// Left and right planes
+		mPlanes[3] = Plane::sFromPointAndNormal(inPosition, Mat44::sRotation(up, 0.5f * inFOVX) * right);
+		mPlanes[4] = Plane::sFromPointAndNormal(inPosition, Mat44::sRotation(up, -0.5f * inFOVX) * -right);
+	}
+
+	/// Test if frustum overlaps with axis aligned box. Note that this is a conservative estimate and can return true if the
+	/// frustum doesn't actually overlap with the box. This is because we only test the plane axis as separating axis
+	/// and skip checking the cross products of the edges of the frustum
+	inline bool		Overlaps(const AABox &inBox) const
+	{
+		// Loop over all frustum planes
+		for (const Plane &p : mPlanes)
+		{
+			// Get support point (the maximum extent) in the direction of our normal
+			Vec3 support = inBox.GetSupport(p.GetNormal());
+
+			// If this is behind our plane, the box is not inside the frustum
+			if (p.SignedDistance(support) < 0.0f)
+				return false;
+		}
+
+		return true;
+	}
+
+private:
+	Plane			mPlanes[5];																	///< Planes forming the frustum
+};