added basic constructor with corner initializer

apps/main.cpp

@@ -3,9 +3,9 @@
 
 int main(int argc, char **argv) {
     std::cout << "Hello, world!" << std::endl;
-    Volumes::Block block;
     Vector::Vector3 vec(1,2,3);
     Vector::Vector3 vec2(2,1,3);
+    Volumes::Block block(vec,1,1,1);
     std::cout<<vec<<std::endl;
     std::cout<<vec.len()<<std::endl;
     vec*=2;
@@ -22,5 +22,6 @@ int main(int argc, char **argv) {
     vec-=vec;
     std::cout<<vec<<std::endl;
     std::cout<<vec.len()<<std::endl;
+    std::cout<<block<<std::endl;
     return 0;
 }

include/Block/block.h

@@ -10,10 +10,31 @@
 namespace Volumes{
     class Block{
     public:
+        Block(const Vector::Vector3& v1, double x, double y, double z):corners{v1,
+                                                                               v1+Vector::Vector3(x,0,0),
+                                                                               v1+Vector::Vector3(x,y,0),
+                                                                               v1+Vector::Vector3(0,y,z),v1,
+                                                                               v1+Vector::Vector3(x,y,z),
+                                                                               v1+Vector::Vector3(x,0,z),
+                                                                               v1+Vector::Vector3(0,0,z)}{};
         virtual ~Block() = default;
 
         double getVolume();
 
+        friend std::ostream& operator<<(std::ostream& os, const Block& v){
+            os<<"[";
+            short count=0;
+            for(Vector::Vector3 corner:v.corners){
+                count++;
+                os<<corner;
+                if(count<8) {
+                    os << std::endl;
+                }
+            }
+            os<<"]";
+            return os;
+        }
+
     private:
         Vector::Vector3 corners[8];
     };

src/block.cpp

@@ -5,7 +5,9 @@
 
 namespace Volumes{
     double Block::getVolume() {
-
-        return 0;
+        Vector::Vector3 x=corners[1]-corners[0];
+        Vector::Vector3 y=corners[3]-corners[0];
+        Vector::Vector3 z=corners[7]-corners[0];
+        return x.len()*y.len()*z.len();
     }
 }