✨ Add star collision

Author: PedroKlein

include/collision/collisionDetector.hpp

@@ -102,4 +102,22 @@ class CollisionDetector {
 
         return result;
     }
+
+    static CollisionResult sphereToSphere(const glm::vec4 &sphere1Center, float sphere1Radius,
+                                          const glm::vec4 &sphere2Center, float sphere2Radius) {
+        CollisionResult result{false, glm::vec4(0.0f), 0};
+
+        const glm::vec4 distance = sphere1Center - sphere2Center;
+        const float distSquared = math::dotProduct(distance, distance);
+
+        if (distSquared < (sphere1Radius + sphere2Radius) * (sphere1Radius + sphere2Radius)) {
+            result.collided = true;
+            const float dist = sqrt(distSquared);
+
+            result.penetrationDepth = sphere1Radius + sphere2Radius - dist;
+            result.normal = math::normalize(distance);
+        }
+
+        return result;
+    }
 };

include/collision/sphereCollider.hpp

@@ -24,6 +24,11 @@ class SphereCollider : public Collider {
                                                     otherOBB->getHalfWidths(), otherOBB->getRotationMatrix());
         }
 
+        if (const auto otherSphere = dynamic_cast<const SphereCollider *>(&other); otherSphere && transform) {
+            result = CollisionDetector::sphereToSphere(getPosition(), getRadius(), otherSphere->getPosition(),
+                                                       otherSphere->getRadius());
+        }
+
         return result;
     }
 

include/objects/player.hpp

@@ -106,7 +106,7 @@ class Player final : public GameObject, public InputObserver {
             return;
         }
 
-        if (other.getObjectType() == ObjectType::DeathBox) {
+        if (other.getObjectType() == ObjectType::DeathBox || other.getObjectType() == ObjectType::Star) {
             deathRoutine();
             return;
         }

include/objects/star.hpp

@@ -27,7 +27,7 @@ class Star : public GameObject {
 
         addComponent(std::make_shared<LightEmitter>(color, 1.0f, 1.0e-2f, 5.0e-3f));
 
-        addComponent(std::make_shared<SphereCollider>(transform.scale.x / 2.0f));
+        addComponent(std::make_shared<SphereCollider>(transform.scale.x));
     }
 
     [[nodiscard]] ObjectType getObjectType() const override { return ObjectType::Star; }