Update J3ML & AABB

CMakeLists.txt

@@ -42,7 +42,7 @@ CPMAddPackage(
 
 CPMAddPackage(
         NAME J3ML
-        URL https://git.redacted.cc/josh/j3ml/archive/Prerelease-2.zip
+        URL https://git.redacted.cc/josh/j3ml/archive/Prerelease-3.zip
 )
 
 

include/engine/occlusion.h

@@ -0,0 +1,2 @@
+#pragma once
+

include/types/collision/axisAlignedBoundingBox.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <types/vertex.h>
+#include <J3ML/LinearAlgebra/Vector3.h>
+struct AxisAlignedBoundingBox {
+    LinearAlgebra::Vector3 minimums;
+    LinearAlgebra::Vector3 maximums;
+};
+
+namespace BoundingBox {
+    AxisAlignedBoundingBox calculate(VertexArray* vArray);
+}

src/engine/occlusion.cpp

@@ -0,0 +1 @@
+#include <engine/occlusion.h>

src/types/axisAlignedBoundingBox.cpp

@@ -0,0 +1,30 @@
+#include <types/collision/axisAlignedBoundingBox.h>
+#include <limits>
+AxisAlignedBoundingBox BoundingBox::calculate(VertexArray* vArray) {
+    float minX = std::numeric_limits<float>::max();
+    float minY = std::numeric_limits<float>::max();
+    float minZ = std::numeric_limits<float>::max();
+    float maxX = -std::numeric_limits<float>::max();
+    float maxY = -std::numeric_limits<float>::max();
+    float maxZ = -std::numeric_limits<float>::max();
+
+    for (const auto& vertex : vArray->vertices) {
+        if (vertex.x < minX)
+            minX = vertex.x;
+        if (vertex.y < minY)
+            minY = vertex.y;
+        if (vertex.z < minZ)
+            minZ = vertex.z;
+
+        if (vertex.x > maxX)
+            maxX = vertex.x;
+        if (vertex.y > maxY)
+            maxY = vertex.y;
+        if (vertex.z > maxZ)
+            maxZ = vertex.z;
+    }
+
+    LinearAlgebra::Vector3 minimums (minX, minY, minZ);
+    LinearAlgebra::Vector3 maximums(maxX, maxY, maxZ);
+    return AxisAlignedBoundingBox(minimums,maximums);
+}