feat: comment pass on player animation tree class

src/player_anim_tree.cpp

@@ -20,17 +20,21 @@ void PlayerAnimTree::_ready() {
 void PlayerAnimTree::_process(double delta) {
     if(gd::Engine::get_singleton()->is_editor_hint())
         return;
-    this->turn_speed = gd::Math::move_toward(this->turn_speed, this->target_turn_speed, float(delta * 30.));
+    // update timers
-    this->commit_turn_speed();
-    this->update_tags(this->fsm->get_current_node());
     this->fire_weapon -= delta;
     this->running_time -= delta;
+    // increase death counter
     if(this->is_dead && this->death_blend < 1.f) {
         this->death_blend = gd::Math::min(this->death_blend + float(delta * this->DEATH_BLEND_SPEED), 1.f);
         this->set("parameters/DeathBlend/blend_amount", this->death_blend);
     }
+    // turn speed smoothing
+    this->turn_speed = gd::Math::move_toward(this->turn_speed, this->target_turn_speed, float(delta * 30.));
+    // rotational root motion
     this->parent_3d->set_quaternion(this->get_root_motion_rotation_accumulator());
     this->parent_3d->rotate_y(M_PIf);
+    this->commit_turn_speed();
+    this->update_tags(this->fsm->get_current_node());
 }
 
 void PlayerAnimTree::set_target_turn_speed(float value) {

src/player_anim_tree.hpp

@@ -12,9 +12,9 @@ class PlayerAnimTree : public gd::AnimationTree {
     static void _bind_methods();
 public:
 enum Tags : unsigned {
-    None = 0x0,
+    None = 0x0, //!< don't apply any state-specific logic
-    Turn = 0x1,
+    Turn = 0x1, //!< allow turning of the character
-    Aim = 0x2
+    Aim = 0x2 //!< (player only) slow down camera movement when aiming
 };
 public:
     virtual void _ready() override;
@@ -39,23 +39,23 @@ private:
     void commit_turn_speed();
     void commit_walk_speed();
 private:
-    double const DEATH_BLEND_SPEED{1. / 0.3}; //!< multiplier for delta_time when blending from state machine to death animation
+    double const DEATH_BLEND_SPEED{1. / 0.3}; //!< multiplier for delta_time when blending from state machine to death animation.
-    double const FIRE_PARAM_DECAY{0.5}; //!< how many seconds it takes for a fire input to become invalid
+    double const FIRE_PARAM_DECAY{0.5}; //!< how many seconds it takes for a fire input to become invalid.
-    double const RUN_PARAM_DECAY{0.25}; //!< how many seconds to run every time set_is_running is called
+    double const RUN_PARAM_DECAY{0.25}; //!< how many seconds to run every time set_is_running is called.
 
-    gd::Node3D *parent_3d{nullptr};
+    gd::Node3D *parent_3d{nullptr}; //!< immediate parent as Node3D, rotational root motion is applied to this.
-    gd::Ref<gd::AnimationNodeStateMachinePlayback> fsm;
+    gd::Ref<gd::AnimationNodeStateMachinePlayback> fsm{}; //!< actions state machine from animation blend tree.
-    float turn_speed{0.f};
+    float turn_speed{0.f}; //!< blend position of turn animation (-1 to 1). Moved towards target_turn_speed every frame.
-    float target_turn_speed{0.f};
+    float target_turn_speed{0.f}; //!< target blend position of turn animation.
-    bool is_walking{false};
+    bool is_walking{false}; //!< set to true if the walk animation should be playing.
-    float walk_speed{0.f};
+    float walk_speed{0.f}; //!< blend amount between RESET/Rest animation and walk animation in walk state.
-    double running_time{0.0};
+    double running_time{0.0}; //!< time in seconds to keep running for.
-    bool aim_weapon{false};
+    bool aim_weapon{false}; //!< set to true to play the aim animation.
-    double fire_weapon{0.0};
+    double fire_weapon{0.0}; //!< play fire animation if this is > 0. Set to FIRE_PARAM_DECAY when set_fire_weapon is called. Decays by 'delta' every frame.
-    float death_blend{0.f};
+    float death_blend{0.f}; //!< current blend level of death animation. Quickly moved towards 1.0 when is_dead is set.
-    bool is_dead{false};
+    bool is_dead{false}; //!< set to true to play death animation and tick up death_blend.
-    Tags current_tags{Tags::None};
+    Tags current_tags{Tags::None}; //!< tags (like [turn]) on the current action state.
-    gd::StringName last_known_anim{};
+    gd::StringName last_known_anim{}; //!< last known animation state in action state machine.
 };
 
 #endif // !PLAYER_ANIM_HPP