throw grabbed objects when using the portal buttons

src/player/player.c

@@ -54,6 +54,7 @@
 #define MAX_ROTATE_RATE_DELTA MAX_ROTATE_RATE
 
 #define JUMP_IMPULSE   2.7f
+#define THROW_IMPULSE  2.7f
 
 struct Vector3 gGrabDistance = {0.0f, 0.0f, -1.5f};
 struct Vector3 gCameraOffset = {0.0f, 0.0f, 0.0f};
@@ -296,6 +297,20 @@ int playerIsGrabbing(struct Player* player) {
     return player->grabConstraint.object != NULL;
 }
 
+void playerThrowObject(struct Player* player) {
+    if (!playerIsGrabbing(player)) {
+        return;
+    }
+    struct CollisionObject* object = player->grabConstraint.object;
+    playerSetGrabbing(player, NULL);
+    
+    struct Vector3 forward, right;
+    playerGetMoveBasis(&player->lookTransform, &forward, &right);
+    
+    vector3Scale(&forward, &forward, -1.0f * THROW_IMPULSE);
+    rigidBodyAppyImpulse(object->body, &object->body->transform.position, &forward);
+}
+
 int playerRaycastGrab(struct Player* player, struct RaycastHit* hit, int checkPastObject) {
     struct Ray ray;
 

src/player/player.h

@@ -73,6 +73,7 @@ int playerIsDead(struct Player* player);
 void playerSetGrabbing(struct Player* player, struct CollisionObject* grabbing);
 void playerSignalPortalChanged(struct Player* player);
 int playerIsGrabbing(struct Player* player);
+void playerThrowObject(struct Player* player);
 
 void playerSerialize(struct Serializer* serializer, SerializeAction action, struct Player* player);
 void playerDeserialize(struct Serializer* serializer, struct Player* player);

src/scene/scene.c

@@ -411,7 +411,7 @@ void sceneCheckPortals(struct Scene* scene) {
     }
 
     if ((fireOrange || fireBlue) && playerIsGrabbing(&scene->player)){
-        playerSetGrabbing(&scene->player, NULL);
+        playerThrowObject(&scene->player);
         scene->ignorePortalGun = fireOrange && fireBlue ? IGNORE_FIRE_BOTH : (fireBlue ? IGNORE_FIRE_BLUE : IGNORE_FIRE_ORANGE); // prevent blocking other button
     }