trenches/src/player_anim_tree.hpp

#ifndef PLAYER_ANIM_TREE_HPP
#define PLAYER_ANIM_TREE_HPP

#include "utils/godot_macros.hpp"
#include <godot_cpp/classes/animation_node_state_machine_playback.hpp>
#include <godot_cpp/classes/animation_tree.hpp>
#include <godot_cpp/classes/node3d.hpp>
namespace gd = godot;

class PlayerAnimTree : public gd::AnimationTree {
    GDCLASS(PlayerAnimTree, gd::AnimationTree);
    static void _bind_methods();
public:
enum Tags : unsigned {
    None = 0x0,
    Turn = 0x1,
    Aim = 0x2
};
public:
    virtual void _ready() override;
    virtual void _process(double delta) override;

    void set_target_turn_speed(float value);
    float get_target_turn_speed() const;
    void set_is_walking(bool value);
    bool get_is_walking() const;
    void set_walk_speed(float value);
    float get_walk_speed() const;
    void set_is_running();
    bool get_is_running() const;
    void set_aim_weapon(bool value);
    bool get_aim_weapon() const;
    void set_fire_weapon();
    bool get_fire_weapon();
    bool match_tags(Tags tags) const;
    void death_animation();
private:
    void update_tags(gd::StringName const &anim);
    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 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

    gd::Node3D *parent_3d{nullptr};
    gd::Ref<gd::AnimationNodeStateMachinePlayback> fsm;
    float turn_speed{0.f};
    float target_turn_speed{0.f};
    bool is_walking{false};
    float walk_speed{0.f};
    double running_time{0.0};
    bool aim_weapon{false};
    double fire_weapon{0.0};
    float death_blend{0.f};
    bool is_dead{false};
    Tags current_tags{Tags::None};
    gd::StringName last_known_anim{};
};

#endif // !PLAYER_ANIM_HPP