character controls & fix bug

src/Controller/RaceManager.cpp

@@ -28,6 +28,11 @@ void RaceManager::onCheckpointEntered(CheckpointEntity *checkpoint) {
     int index = indexOf(checkpoints_, checkpoint);
     LOG_DEBUG("Entered checkpoint '" + std::to_string(index) + "'");
 
+    if (!character_->canEnterCheckpoints()) {
+        LOG_DEBUG("Character cannot enter checkpoints right now");
+        return;
+    }
+
     if (ended_) {
         return;
     }

src/Scene/Character.cpp

@@ -243,32 +243,32 @@ glm::vec3 CharacterEntity::calculateVelocity_(float time_delta) {
     }
 
     // Looking straight ahead cancles 75% of gravity due to aerodynamic drag
-    float down_accel = -0.75f * GRAVITY_ACCELERATION;
+    float down_accel = -0.6f * GRAVITY_ACCELERATION;
     result.y += down_accel * time_delta;
 
     // Looking straight up or down would divide by zero
     pitch_cos = glm::max(pitch_cos, glm::epsilon<float>());
     // convert vertical to horizontal velocity
     if (velocity.y < 0) {
-        float lift = velocity.y * -0.2f * pitch_cos_sqr * time_delta * SPEED;
+        float lift = velocity.y * -0.175f * pitch_cos_sqr * time_delta * SPEED;
         result.y += lift;
         result.x += looking.x * lift / pitch_cos;
         result.z += looking.z * lift / pitch_cos;
     }
     // convert horizontal to vertical upwards velocity
     // allows for flying up
     if (camera.angles.x > 0) {
-        float lift = horizontal_speed * pitch_sin * 0.2f * time_delta * SPEED;
+        float lift = horizontal_speed * pitch_sin * 0.175f * time_delta * SPEED;
         // Unrealistic but makes gaining hight easier.
-        // One problem is that this allows for infinite height gain.
+        // One problem is that this allows for infinite height gain when te factor is above 1.
         result.y += lift * 1.0f;
         result.x -= looking.x * lift / pitch_cos;
         result.z -= looking.z * lift / pitch_cos;
     }
     // convert horizontal to vertical downwards velocity
     // allows for better height control
     if (camera.angles.x < 0) {
-        float anti_lift = horizontal_speed * pitch_sin_sqr * -0.1f * time_delta * SPEED;
+        float anti_lift = horizontal_speed * pitch_sin_sqr * -0.175f * 0.5f * time_delta * SPEED;
         result.y += anti_lift;
         result.x += looking.x * anti_lift / pitch_cos;
         result.z += looking.z * anti_lift / pitch_cos;

src/Scene/Character.h

@@ -117,4 +117,8 @@ class CharacterEntity : public scene::NodeEntity {
     JPH::BodyID body() const;
 
     JPH::BodyID kinematicBody() const;
+
+    bool canEnterCheckpoints() const {
+        return respawnFreeze.isZero();
+    }
 };

src/Util/Timer.h

@@ -22,11 +22,11 @@ struct Timer {
         if (value_ < 0) value_ = 0;
     }
 
-    float value() {
+    float value() const {
         return value_;
     }
 
-    bool isZero() {
+    bool isZero() const {
         return value_ == 0.0;
     }