trenches/src/camera_effects.cpp

#include "camera_effects.hpp"
#include "utils/util_functions.hpp"
#include <godot_cpp/variant/utility_functions.hpp>

void CameraEffects::_bind_methods() {}

void CameraEffects::_ready() {
    this->home = this->get_position();
    this->target = this->home;
    this->base_fov = this->target_fov = this->get_fov();
}

void CameraEffects::_process(double delta [[maybe_unused]]) {
    this->home = this->get_position();
    if(utils::time_seconds() > this->end_time) {
        intensity = 0.f;
        this->set_position(this->home);
    }
    if(intensity != 0.f) {
        gd::Vector3 pos{this->get_position()};
        pos = this->target;
        this->set_position(this->home + pos);
        this->select_target();
    }
    this->set_fov(gd::Math::move_toward(this->get_fov(), this->target_fov, float(this->fov_speed * delta)));
}

void CameraEffects::push_shake_effect(float time, float intensity) {
    if(intensity > this->intensity) {
        this->intensity = intensity;
        this->end_time = utils::time_seconds() + time;
    }
}

void CameraEffects::push_zoom_effect(float factor, float speed) {
    this->target_fov = factor * this->base_fov;
    this->fov_speed = speed;
}

void CameraEffects::select_target() {
    float const intensity_mod{this->intensity * 0.01f};
    this->target = {
        float(gd::UtilityFunctions::randf_range(0.f, 1.f) * -gd::Math::sign(this->target.x) * intensity_mod),
        float(gd::UtilityFunctions::randf_range(-1.f, 1.f) * intensity_mod),
        0.f
    };
}