- added caching for computeVisibleQuad

- fixed bug when in chat mode and the deub view toggle key was intercepted
- added less than operators

source/shared_lib/include/graphics/math_util.h

@@ -138,6 +138,22 @@ public:
 			p[3]/scalar);
 	}
 
+	bool operator <(const Quad2<T> &v) const {
+		if(p[0] < v.p[0]) {
+			return true;
+		}
+		if(p[1] < v.p[1]) {
+			return true;
+		}
+		if(p[2] < v.p[2]) {
+			return true;
+		}
+		if(p[3] < v.p[3]) {
+			return true;
+		}
+		return false;
+	}
+
 	Rect2<T> computeBoundingRect() const{
 		return Rect2i(
 			min(p[0].x, p[1].x), 

source/shared_lib/include/graphics/vec.h

@@ -261,12 +261,16 @@ public:
 	}
 
 	Vec3<T> operator -=(const Vec3<T> &v){
-		x-=v.x; 
+		x-=v.x;
 		y-=v.y;
 		z-=v.z;
 		return *this;
 	}
 
+	bool operator <(const Vec3<T> &v) const {
+		return x < v.x || (x == v.x && y < v.y) || (x == v.x && y == v.y && z < v.z);
+	}
+
 	Vec3<T> lerp(T t, const Vec3<T> &v) const{
 		return *this + (v - *this) * t;
 	}
@@ -455,6 +459,9 @@ public:
 		w-=w.z;
 		return *this;
 	}
+	bool operator <(const Vec4<T> &v) const {
+		return x < v.x || (x == v.x && y < v.y) || (x == v.x && y == v.y && z < v.z) || (x == v.x && y == v.y && z == v.z && w < v.w);
+	}
 
 	Vec4<T> lerp(T t, const Vec4<T> &v) const{
 		return *this + (v - *this) *t;