Import aap/librw @ masterHEADmaster

Snapshot for re3/reVC vendoring, per @lzcnt.
Source: https://github.com/aap/librw (master).

1 files changed, 70 insertions, 0 deletions

diff --git a/src/prim.cpp b/src/prim.cpp
new file mode 100644
index 0000000..eb353d9
--- /dev/null
+++ b/src/prim.cpp
@@ -0,0 +1,70 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "rwbase.h"
+#include "rwerror.h"
+#include "rwplg.h"
+#include "rwpipeline.h"
+#include "rwobjects.h"
+#include "rwengine.h"
+
+#define PLUGIN_ID 0
+
+namespace rw {
+
+
+void
+BBox::initialize(V3d *point)
+{
+	this->inf = *point;
+	this->sup = *point;
+}
+
+void
+BBox::addPoint(V3d *point)
+{
+	if(point->x < this->inf.x)
+		this->inf.x = point->x;
+	if(point->y < this->inf.y)
+		this->inf.y = point->y;
+	if(point->z < this->inf.z)
+		this->inf.z = point->z;
+	if(point->x > this->sup.x)
+		this->sup.x = point->x;
+	if(point->y > this->sup.y)
+		this->sup.y = point->y;
+	if(point->z > this->sup.z)
+		this->sup.z = point->z;
+}
+
+void
+BBox::calculate(V3d *points, int32 n)
+{
+	this->inf = points[0];
+	this->sup = points[0];
+	while(--n){
+		points++;
+		if(points->x < this->inf.x)
+			this->inf.x = points->x;
+		if(points->y < this->inf.y)
+			this->inf.y = points->y;
+		if(points->z < this->inf.z)
+			this->inf.z = points->z;
+		if(points->x > this->sup.x)
+			this->sup.x = points->x;
+		if(points->y > this->sup.y)
+			this->sup.y = points->y;
+		if(points->z > this->sup.z)
+			this->sup.z = points->z;
+	}
+}
+
+bool
+BBox::containsPoint(V3d *point)
+{
+	return point->x >= this->inf.x && point->x <= this->sup.x &&
+		point->y >= this->inf.y && point->y <= this->sup.y &&
+		point->z >= this->inf.z && point->z <= this->sup.z;
+}
+
+}