feat: third-person camera now checks solid entities

src/logic/PlayerController.cpp

@@ -44,7 +44,9 @@ namespace {
     const float CROUCH_SHIFT_Y = -0.2f;
 }
 
-CameraControl::CameraControl(Player& player, const CameraSettings& settings)
+CameraControl::CameraControl(
+    Player& player, const CameraSettings& settings
+)
     : player(player),
       camera(player.fpCamera),
       settings(settings),
@@ -195,18 +197,30 @@ void CameraControl::update(
 
     refreshPosition();
 
+    auto castRay = [](Player& player, Camera& camera, const glm::vec3& front)
+         -> glm::vec3 {
+        auto blockEnd = player.chunks->rayCastToObstacle(camera.position, front, 3.0f);
+        auto entityRay = player.getLevel().entities->rayCast(
+            camera.position, front, 3.0f, player.getEntity(), true
+        );
+        if (entityRay.has_value() &&
+            entityRay->distance < glm::distance(camera.position, blockEnd)) {
+            return (camera.position + front * entityRay->distance);
+        } else {
+            return blockEnd;
+        }
+    };
+
     camera->updateVectors();
     if (player.currentCamera == spCamera) {
         spCamera->position =
-            chunks.rayCastToObstacle(camera->position, camera->front, 3.0f) -
+            castRay(player, *camera, camera->front) - 0.4f * camera->front;
-            0.4f * camera->front;
         spCamera->dir = -camera->dir;
         spCamera->front = -camera->front;
         spCamera->right = -camera->right;
     } else if (player.currentCamera == tpCamera) {
-        tpCamera->position =
+        tpCamera->position = castRay(player, *camera, camera->front * -1.0f) +
-            chunks.rayCastToObstacle(camera->position, -camera->front, 3.0f) +
+                             0.4f * camera->front;
-            0.4f * camera->front;
         tpCamera->dir = camera->dir;
         tpCamera->front = camera->front;
         tpCamera->right = camera->right;

src/objects/Entities.cpp

@@ -162,7 +162,11 @@ void Entities::loadEntity(const dv::value& map, Entity entity) {
 }
 
 std::optional<Entities::RaycastResult> Entities::rayCast(
-    glm::vec3 start, glm::vec3 dir, float maxDistance, entityid_t ignore
+    glm::vec3 start,
+    glm::vec3 dir,
+    float maxDistance,
+    entityid_t ignore,
+    bool solidOnly
 ) {
     Ray ray(start, dir);
     auto view = registry->view<EntityId, Transform, Rigidbody>();
@@ -171,7 +175,7 @@ std::optional<Entities::RaycastResult> Entities::rayCast(
     glm::ivec3 foundNormal;
 
     for (auto [entity, eid, transform, body] : view.each()) {
-        if (eid.uid == ignore || !body.enabled) {
+        if (eid.uid == ignore || !body.enabled || (solidOnly && !eid.def.solid)) {
             continue;
         }
         auto& hitbox = body.hitbox;

src/objects/Entities.hpp

@@ -88,12 +88,14 @@ public:
     /// @param dir Ray direction normalized vector
     /// @param maxDistance Max ray length
     /// @param ignore Ignored entity ID
+    /// @param solidOnly If true, only entities with solid hitboxes will be checked
     /// @return An optional structure containing entity, normal and distance
     std::optional<RaycastResult> rayCast(
         glm::vec3 start,
         glm::vec3 dir,
         float maxDistance,
-        entityid_t ignore = -1
+        entityid_t ignore = -1,
+        bool solidOnly = false
     );
 
     void loadEntities(dv::value map);