+/*
+ * AABB.cpp
+ *
+ * Created on: Apr 30, 2012
+ * Author: holy
+ */
+
+#include "AABB.h"
+
+#include "Circle.h"
+
+namespace shape {
+
+void AABB::Translate(const Vector &delta) {
+ leftTop += delta;
+ rightBottom += delta;
+}
+
+void AABB::Rotate(Scalar delta) {
+
+}
+
+
+bool AABB::CheckCollision(const Shape &other, Ray &na) const {
+ if (other.CheckCollision(*this, na)) {
+ na.Direction() *= -1;
+ return true;
+ } else {
+ return false;
+ }
+}
+
+bool AABB::CheckCollision(const AABB &other, Ray &na) const {
+ if (Bottom() <= other.Top()) return false;
+ if (other.Bottom() <= Top()) return false;
+ if (Right() <= other.Left()) return false;
+ if (other.Right() <= Left()) return false;
+
+ if (Bottom() <= other.Top() || other.Bottom() <= Top()) {
+ if (Left() < other.Left()) {
+ na.Origin() = Vector(((Top() + Bottom()) / 2 + (other.Top() + other.Bottom()) / 2) / 2, Right());
+ na.Direction() = Vector(-1, 0);
+ } else {
+ na.Origin() = Vector(((Top() + Bottom()) / 2 + (other.Top() + other.Bottom()) / 2) / 2, Left());
+ na.Direction() = Vector(1, 0);
+ }
+ } else {
+ if (Top() < other.Top()) {
+ na.Origin() = Vector(Bottom(), ((Left() + Right()) / 2 + (other.Left() + other.Right()) / 2) / 2);
+ na.Direction() = Vector(0, -1);
+ } else {
+ na.Origin() = Vector(Top(), ((Left() + Right()) / 2 + (other.Left() + other.Right()) / 2) / 2);
+ na.Direction() = Vector(0, 1);
+ }
+ }
+ return true;
+}
+
+bool AABB::CheckCollision(const Circle &other, Ray &na) const {
+ if (other.CheckCollision(*this, na)) {
+ na.Direction() *= -1;
+ return true;
+ } else {
+ return false;
+ }
+}
+
+
+std::ostream &AABB::Write(std::ostream &out) const {
+ return out << "AABB(" << Width() << 'x' << Height() << ", " << Center() << ')';
+}
+
+}