#pragma once

#include <algorithm>
#include <array>
#include <chrono>
#include <cmath>
#include <cstdint>
#include <string>
#include <vector>

#include "UIRenderCommands.h"

#ifdef MT_NATIVE_HAS_LIVE_CLIENT
#include "platform/ScriptLib/PythonBoot.h"
#endif

class TouchController {
public:
    struct ButtonDef {
        int id; // 1 = attack, 2..7 = quick slots 1..6
        int dik;
        float x, y, radius;
        const char* label;
        uint32_t color_idle;
        uint32_t color_pressed;
        bool pressed = false;
        int64_t finger_id = -1;
    };

    TouchController() {
        init_buttons();
    }

    void set_enabled(bool enabled) { enabled_ = enabled; }
    bool is_enabled() const { return enabled_; }

    void update_screen_size(int width, int height) {
        if (width <= 0 || height <= 0) return;
        screen_w_ = width;
        screen_h_ = height;
        // Position joystick on lower-left
        joystick_base_x_ = std::max(90.0f, float(width) * 0.12f);
        joystick_base_y_ = float(height) - std::max(90.0f, float(height) * 0.22f);
        if (!joystick_active_) {
            joystick_knob_x_ = joystick_base_x_;
            joystick_knob_y_ = joystick_base_y_;
        }
        layout_buttons();
    }

    // Called once per frame to maintain continuous analog movement
    void update() {
        if (!enabled_) return;
        const bool controls_visible = gameplay_controls_visible();
        if (!controls_visible) {
            if (controls_were_visible_)
                release_gameplay_controls();
            controls_were_visible_ = false;
            return;
        }
        controls_were_visible_ = true;
        if (joystick_active_) {
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
            PythonBoot::SetMoveDirection(move_angle_, true);
#endif
        }
    }

    // Handles finger touch down (norm_x, norm_y in 0.0 .. 1.0)
    bool on_finger_down(int64_t finger_id, float norm_x, float norm_y) {
        if (!enabled_) return false;
        const float px = norm_x * float(screen_w_);
        const float py = norm_y * float(screen_h_);
        const bool controls_visible = gameplay_controls_visible();

        // The mobile overlay owns only the movement and combat control regions.
        if (controls_visible) {
            const int btn_idx = find_button(px, py);
            if (btn_idx >= 0) {
                auto& btn = buttons_[btn_idx];
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
                if (btn.id >= 2 && PythonBoot::TryAssignAttachedObjectToLocalQuickSlot(btn.id - 2))
                    return true;
#endif
                btn.pressed = true;
                btn.finger_id = finger_id;
                trigger_button(btn.dik, true);
                return true;
            }
        }

        // Everything else uses the unchanged 40250 UI and its normal mouse path.
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
        if (PythonBoot::IsPointInsideActiveUI(int(px), int(py))) {
            ui_touch_finger_id_ = finger_id;
            PythonBoot::UIMouseMove(int(px), int(py));
            PythonBoot::UIMouseButton(1, true, int(px), int(py));
            return true;
        }
#endif

        // Start movement only in the gameplay phase.
        if (controls_visible && norm_x < 0.40f && norm_y > 0.35f && !joystick_active_) {
            joystick_active_ = true;
            joystick_finger_id_ = finger_id;
            joystick_base_x_ = px;
            joystick_base_y_ = py;
            joystick_knob_x_ = px;
            joystick_knob_y_ = py;
            update_joystick_motion(px, py);
            return true;
        }

        if (!controls_visible)
            return false;

        // The remaining gameplay area controls camera and world selection.
        if (camera_finger_id_ < 0) {
            camera_finger_id_ = finger_id;
            camera_last_x_ = px;
            camera_last_y_ = py;
            camera_start_x_ = px;
            camera_start_y_ = py;
            camera_dragged_ = false;
            camera_down_time_ = get_time_sec();
            return true;
        } else if (pinch_finger2_ < 0) {
            pinch_finger1_ = camera_finger_id_;
            pinch_finger2_ = finger_id;
            pinch_last_dist_ = std::hypot(px - camera_last_x_, py - camera_last_y_);
            return true;
        }

        return false;
    }

    // Handles finger motion
    bool on_finger_motion(int64_t finger_id, float norm_x, float norm_y) {
        if (!enabled_) return false;
        const float px = norm_x * float(screen_w_);
        const float py = norm_y * float(screen_h_);

        // 1. UI Touch dragging (e.g. dragging item in inventory or scrollbar)
        if (ui_touch_finger_id_ == finger_id) {
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
            PythonBoot::UIMouseMove(int(px), int(py));
#endif
            return true;
        }

        // 2. Virtual Joystick finger
        if (joystick_active_ && finger_id == joystick_finger_id_) {
            update_joystick_motion(px, py);
            return true;
        }

        // 3. Button drag tracking (check if finger slid off)
        for (auto& btn : buttons_) {
            if (btn.finger_id == finger_id) {
                const float dist = std::hypot(px - btn.x, py - btn.y);
                if (dist > btn.radius * 1.5f && btn.pressed) {
                    btn.pressed = false;
                    trigger_button(btn.dik, false);
                } else if (dist <= btn.radius * 1.5f && !btn.pressed) {
                    btn.pressed = true;
                    trigger_button(btn.dik, true);
                }
                return true;
            }
        }

        // 4. Two-finger pinch zoom
        if (pinch_finger1_ >= 0 && pinch_finger2_ >= 0 &&
            (finger_id == pinch_finger1_ || finger_id == pinch_finger2_)) {
            const float cur_dist = std::hypot(px - camera_last_x_, py - camera_last_y_);
            if (pinch_last_dist_ > 1.0f && cur_dist > 1.0f) {
                const float delta_d = cur_dist - pinch_last_dist_;
                if (std::abs(delta_d) > 2.0f) {
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
                    PythonBoot::UIMouseWheel(int(delta_d * 8.0f));
#endif
                    pinch_last_dist_ = cur_dist;
                }
            }
            return true;
        }

        // 5. Single-finger camera drag
        if (finger_id == camera_finger_id_) {
            const float total_dist = std::hypot(px - camera_start_x_, py - camera_start_y_);
            if (total_dist > 6.0f) {
                if (!camera_dragged_) {
                    camera_dragged_ = true;
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
                    PythonBoot::CameraBeginDrag(int(camera_start_x_), int(camera_start_y_));
#endif
                }
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
                PythonBoot::CameraDrag(int(px), int(py));
#endif
            }
            camera_last_x_ = px;
            camera_last_y_ = py;
            return true;
        }

        return false;
    }

    // Handles finger touch up
    bool on_finger_up(int64_t finger_id, float norm_x, float norm_y) {
        if (!enabled_) return false;
        const float px = norm_x * float(screen_w_);
        const float py = norm_y * float(screen_h_);

        // 1. UI Touch release (e.g. dropped item in inventory or clicked button)
        if (ui_touch_finger_id_ == finger_id) {
            ui_touch_finger_id_ = -1;
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
            PythonBoot::UIMouseButton(1, false, int(px), int(py));
#endif
            return true;
        }

        // 2. Joystick release
        if (joystick_active_ && finger_id == joystick_finger_id_) {
            joystick_active_ = false;
            joystick_finger_id_ = -1;
            joystick_knob_x_ = joystick_base_x_;
            joystick_knob_y_ = joystick_base_y_;
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
            PythonBoot::SetMoveDirection(0.0f, false);
#endif
            return true;
        }

        // 3. Button release
        for (auto& btn : buttons_) {
            if (btn.finger_id == finger_id) {
                if (btn.pressed) {
                    btn.pressed = false;
                    trigger_button(btn.dik, false);
                }
                btn.finger_id = -1;
                return true;
            }
        }

        // 4. Pinch end
        if (finger_id == pinch_finger1_ || finger_id == pinch_finger2_) {
            pinch_finger1_ = -1;
            pinch_finger2_ = -1;
            pinch_last_dist_ = 0.0f;
            if (finger_id == camera_finger_id_) camera_finger_id_ = -1;
            return true;
        }

        // 5. Camera finger release
        if (finger_id == camera_finger_id_) {
            camera_finger_id_ = -1;
            if (camera_dragged_) {
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
                PythonBoot::CameraEndDrag();
#endif
            } else if ((get_time_sec() - camera_down_time_) < 0.35) {
                // Short tap on 3D world: select target (mob, NPC, ground)
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
                PythonBoot::UIMouseMove(int(px), int(py));
                PythonBoot::UIMouseButton(1, true, int(px), int(py));
                PythonBoot::UIMouseButton(1, false, int(px), int(py));
#endif
            }
            return true;
        }

        return false;
    }

    // Overlay only the controls that have no practical desktop-UI touch equivalent.
    void append_ui_commands(std::vector<UIRenderCommand>& commands) const {
        if (!enabled_ || !gameplay_controls_visible()) return;

        // Right-side attack and quick-slot buttons.
        for (const auto& btn : buttons_) {
            const uint32_t col = btn.pressed ? btn.color_pressed : btn.color_idle;
            draw_filled_disc(commands, btn.x, btn.y, btn.radius, col);
            draw_circle(commands, btn.x, btn.y, btn.radius * 0.85f, btn.pressed ? 0xFFFFFFFF : 0x70FFFFFF, 16);

            const uint32_t icon_col = btn.pressed ? 0xFFFFFFFF : 0xDDFFFFFF;
            const float r = btn.radius;

#ifdef MT_NATIVE_HAS_LIVE_CLIENT
            if (btn.id >= 2) {
                const std::string skill_icon = PythonBoot::LocalQuickSlotSkillIcon(btn.id - 2);
                if (!skill_icon.empty()) {
                    UIRenderCommand icon{};
                    icon.kind = UIRenderCommand::Image;
                    icon.x1 = btn.x - r * 0.68f;
                    icon.y1 = btn.y - r * 0.68f;
                    icon.x2 = btn.x + r * 0.68f;
                    icon.y2 = btn.y + r * 0.68f;
                    icon.argb = icon_col;
                    icon.text = skill_icon;
                    commands.push_back(std::move(icon));
                    continue;
                }
            }
#endif

            switch (btn.id) {
            case 1: { // ATK: crossed swords
                const float s = r * 0.35f;
                draw_line(commands, btn.x - s, btn.y - s, btn.x + s, btn.y + s, icon_col);
                draw_line(commands, btn.x + s, btn.y - s, btn.x - s, btn.y + s, icon_col);
                const float g = s * 0.35f;
                draw_line(commands, btn.x - s*0.4f - g, btn.y - s*0.4f + g, btn.x - s*0.4f + g, btn.y - s*0.4f - g, icon_col);
                draw_line(commands, btn.x + s*0.4f - g, btn.y - s*0.4f - g, btn.x + s*0.4f + g, btn.y - s*0.4f + g, icon_col);
                break;
            }
            case 2: { // S1: I
                const float h = r * 0.35f;
                draw_line(commands, btn.x, btn.y - h, btn.x, btn.y + h, icon_col);
                draw_line(commands, btn.x - 4.0f, btn.y - h, btn.x + 4.0f, btn.y - h, icon_col);
                draw_line(commands, btn.x - 4.0f, btn.y + h, btn.x + 4.0f, btn.y + h, icon_col);
                break;
            }
            case 3: { // S2: II
                const float h = r * 0.35f;
                draw_line(commands, btn.x - 4.0f, btn.y - h, btn.x - 4.0f, btn.y + h, icon_col);
                draw_line(commands, btn.x + 4.0f, btn.y - h, btn.x + 4.0f, btn.y + h, icon_col);
                break;
            }
            case 4: { // S3: III
                const float h = r * 0.35f;
                draw_line(commands, btn.x - 6.0f, btn.y - h, btn.x - 6.0f, btn.y + h, icon_col);
                draw_line(commands, btn.x,        btn.y - h, btn.x,        btn.y + h, icon_col);
                draw_line(commands, btn.x + 6.0f, btn.y - h, btn.x + 6.0f, btn.y + h, icon_col);
                break;
            }
            case 5: { // S4: IV
                const float h = r * 0.35f;
                draw_line(commands, btn.x - 7.0f, btn.y - h, btn.x - 7.0f, btn.y + h, icon_col);
                draw_line(commands, btn.x, btn.y - h, btn.x + 7.0f, btn.y + h, icon_col);
                draw_line(commands, btn.x + 14.0f, btn.y - h, btn.x + 7.0f, btn.y + h, icon_col);
                break;
            }
            case 6: { // S5: V
                const float h = r * 0.35f;
                draw_line(commands, btn.x - 8.0f, btn.y - h, btn.x, btn.y + h, icon_col);
                draw_line(commands, btn.x + 8.0f, btn.y - h, btn.x, btn.y + h, icon_col);
                break;
            }
            case 7: { // S6: VI
                const float h = r * 0.35f;
                draw_line(commands, btn.x - 11.0f, btn.y - h, btn.x - 3.0f, btn.y + h, icon_col);
                draw_line(commands, btn.x + 5.0f, btn.y - h, btn.x - 3.0f, btn.y + h, icon_col);
                draw_line(commands, btn.x + 11.0f, btn.y - h, btn.x + 11.0f, btn.y + h, icon_col);
                break;
            }
            }
        }

        // Left-side movement joystick.
        draw_circle(commands, joystick_base_x_, joystick_base_y_, joystick_radius_, 0x8080C0FF, 24);
        draw_circle(commands, joystick_base_x_, joystick_base_y_, joystick_radius_ * 0.45f, 0x4080C0FF, 16);
        draw_line(commands, joystick_base_x_ - joystick_radius_, joystick_base_y_,
                            joystick_base_x_ - joystick_radius_ + 8.0f, joystick_base_y_, 0x90FFFFFF);
        draw_line(commands, joystick_base_x_ + joystick_radius_ - 8.0f, joystick_base_y_,
                            joystick_base_x_ + joystick_radius_, joystick_base_y_, 0x90FFFFFF);
        draw_line(commands, joystick_base_x_, joystick_base_y_ - joystick_radius_,
                            joystick_base_x_, joystick_base_y_ - joystick_radius_ + 8.0f, 0x90FFFFFF);
        draw_line(commands, joystick_base_x_, joystick_base_y_ + joystick_radius_ - 8.0f,
                            joystick_base_x_, joystick_base_y_ + joystick_radius_, 0x90FFFFFF);

        if (joystick_active_) {
            draw_line(commands, joystick_base_x_, joystick_base_y_, joystick_knob_x_, joystick_knob_y_, 0xB000FFFF);
        }
        const uint32_t knob_color = joystick_active_ ? 0xB040A0FF : 0x6040A0FF;
        draw_filled_disc(commands, joystick_knob_x_, joystick_knob_y_, joystick_knob_radius_, knob_color);
        draw_circle(commands, joystick_knob_x_, joystick_knob_y_, joystick_knob_radius_ * 0.5f, 0x80FFFFFF, 12);
    }

    // Desktop mouse testing simulation
    bool on_mouse_button(int button, bool pressed, int x, int y) {
        if (!enabled_) return false;
        const float norm_x = float(x) / float(screen_w_);
        const float norm_y = float(y) / float(screen_h_);
        if (pressed) {
            if (button == 1) {
                return on_finger_down(101, norm_x, norm_y);
            }
            return false;
        } else {
            if (button == 1) {
                return on_finger_up(101, norm_x, norm_y);
            }
            return false;
        }
    }

    bool on_mouse_motion(int x, int y) {
        if (!enabled_) return false;
        const float norm_x = float(x) / float(screen_w_);
        const float norm_y = float(y) / float(screen_h_);
        bool handled = false;
        if (ui_touch_finger_id_ == 101) {
            handled |= on_finger_motion(101, norm_x, norm_y);
        }
        if (joystick_active_ && joystick_finger_id_ == 101) {
            handled |= on_finger_motion(101, norm_x, norm_y);
        }
        if (camera_finger_id_ == 101) {
            handled |= on_finger_motion(101, norm_x, norm_y);
        }
        return handled;
    }

private:
    bool gameplay_controls_visible() const {
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
        return !PythonBoot::CurrentMapName().empty();
#else
        return false;
#endif
    }

    void release_gameplay_controls() {
        if (joystick_active_) {
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
            PythonBoot::SetMoveDirection(0.0f, false);
#endif
        }
        joystick_active_ = false;
        joystick_finger_id_ = -1;
        joystick_knob_x_ = joystick_base_x_;
        joystick_knob_y_ = joystick_base_y_;
        for (auto& btn : buttons_) {
            if (btn.pressed)
                trigger_button(btn.dik, false);
            btn.pressed = false;
            btn.finger_id = -1;
        }
        if (camera_dragged_) {
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
            PythonBoot::CameraEndDrag();
#endif
        }
        camera_finger_id_ = -1;
        camera_dragged_ = false;
        pinch_finger1_ = -1;
        pinch_finger2_ = -1;
        pinch_last_dist_ = 0.0f;
    }

    void init_buttons() {
        buttons_.clear();
        // Lower-right combat controls. All menus and status UI remain the original 40250 UI.
        buttons_.push_back({1, 0x39, 0, 0, 42.0f, "ATK",  0x80D48820, 0xD0FFB040});
        buttons_.push_back({2, 0x02, 0, 0, 26.0f, "S1",   0x803060C0, 0xD05080FF});
        buttons_.push_back({3, 0x03, 0, 0, 26.0f, "S2",   0x80903090, 0xD0D050D0});
        buttons_.push_back({4, 0x04, 0, 0, 26.0f, "S3",   0x80309060, 0xD050D080});
        buttons_.push_back({5, 0x05, 0, 0, 26.0f, "S4",   0x80906030, 0xD0D08050});
        buttons_.push_back({6, 0x06, 0, 0, 26.0f, "S5",   0x80603090, 0xD08050D0});
        buttons_.push_back({7, 0x07, 0, 0, 26.0f, "S6",   0x80308090, 0xD050C0D0});
    }

    void layout_buttons() {
        const float W = float(screen_w_);
        const float H = float(screen_h_);
        for (auto& btn : buttons_) {
            switch (btn.id) {
            case 1:
                btn.x = W - 75.0f;
                btn.y = H - 85.0f;
                btn.radius = std::min(46.0f, H * 0.12f);
                break;
            case 2:
                btn.x = W - 360.0f;
                btn.y = H - 75.0f;
                btn.radius = std::min(28.0f, H * 0.08f);
                break;
            case 3:
                btn.x = W - 295.0f;
                btn.y = H - 75.0f;
                btn.radius = std::min(28.0f, H * 0.08f);
                break;
            case 4:
                btn.x = W - 230.0f;
                btn.y = H - 75.0f;
                btn.radius = std::min(28.0f, H * 0.08f);
                break;
            case 5:
                btn.x = W - 165.0f;
                btn.y = H - 85.0f;
                btn.radius = std::min(28.0f, H * 0.08f);
                break;
            case 6:
                btn.x = W - 125.0f;
                btn.y = H - 155.0f;
                btn.radius = std::min(28.0f, H * 0.08f);
                break;
            case 7:
                btn.x = W - 75.0f;
                btn.y = H - 225.0f;
                btn.radius = std::min(28.0f, H * 0.08f);
                break;
            }
        }
    }

    int find_button(float x, float y) {
        for (size_t i = 0; i < buttons_.size(); ++i) {
            const auto& btn = buttons_[i];
            const float dist = std::hypot(x - btn.x, y - btn.y);
            if (dist <= btn.radius * 1.25f) {
                return int(i);
            }
        }
        return -1;
    }

    void trigger_button(int dik, bool pressed) {
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
        if (dik == 0x39) {
            PythonBoot::SetAttackKey(pressed);
        }
        if (dik >= 0x02 && dik <= 0x07) {
            if (pressed)
                PythonBoot::UseLocalQuickSlot(dik - 0x02);
            return;
        }
        if (dik != 0) {
            PythonBoot::UIKey(dik, pressed);
        }
#endif
    }

    void update_joystick_motion(float px, float py) {
        const float dx = px - joystick_base_x_;
        const float dy = py - joystick_base_y_;
        const float dist = std::hypot(dx, dy);

        if (dist <= joystick_radius_) {
            joystick_knob_x_ = px;
            joystick_knob_y_ = py;
        } else if (dist > 0.0f) {
            joystick_knob_x_ = joystick_base_x_ + (dx / dist) * joystick_radius_;
            joystick_knob_y_ = joystick_base_y_ + (dy / dist) * joystick_radius_;
        }

        if (dist > 8.0f) {
            const float rad = std::atan2(-dx, -dy);
            move_angle_ = rad * 180.0f / 3.14159265358979323846f;
            if (move_angle_ < 0.0f) move_angle_ += 360.0f;
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
            PythonBoot::SetMoveDirection(move_angle_, true);
#endif
        } else {
#ifdef MT_NATIVE_HAS_LIVE_CLIENT
            PythonBoot::SetMoveDirection(0.0f, false);
#endif
        }
    }

    static void draw_line(std::vector<UIRenderCommand>& commands,
                          float x1, float y1, float x2, float y2, uint32_t argb) {
        UIRenderCommand cmd{};
        cmd.kind = UIRenderCommand::Line;
        cmd.x1 = x1; cmd.y1 = y1;
        cmd.x2 = x2; cmd.y2 = y2;
        cmd.argb = argb;
        commands.push_back(cmd);
    }

    static void draw_rect_bar(std::vector<UIRenderCommand>& commands,
                              float x1, float y1, float x2, float y2, uint32_t argb) {
        UIRenderCommand bar{};
        bar.kind = UIRenderCommand::Bar;
        bar.x1 = x1; bar.y1 = y1;
        bar.x2 = x2; bar.y2 = y2;
        bar.argb = argb;
        commands.push_back(bar);
    }

    static void draw_rect_lines(std::vector<UIRenderCommand>& commands,
                                float x1, float y1, float x2, float y2, uint32_t argb) {
        draw_line(commands, x1, y1, x2, y1, argb);
        draw_line(commands, x2, y1, x2, y2, argb);
        draw_line(commands, x2, y2, x1, y2, argb);
        draw_line(commands, x1, y2, x1, y1, argb);
    }

    static void draw_circle(std::vector<UIRenderCommand>& commands,
                            float cx, float cy, float radius, uint32_t argb, int segments = 16) {
        const float step = 2.0f * 3.14159265f / float(segments);
        for (int i = 0; i < segments; ++i) {
            const float a1 = float(i) * step;
            const float a2 = float(i + 1) * step;
            draw_line(commands,
                      cx + std::cos(a1) * radius, cy + std::sin(a1) * radius,
                      cx + std::cos(a2) * radius, cy + std::sin(a2) * radius,
                      argb);
        }
    }

    static void draw_filled_disc(std::vector<UIRenderCommand>& commands,
                                 float cx, float cy, float radius, uint32_t argb) {
        // Base rectangular fill
        draw_rect_bar(commands, cx - radius * 0.65f, cy - radius * 0.65f, cx + radius * 0.65f, cy + radius * 0.65f, (argb & 0x00FFFFFF) | 0x55000000);
        // Cross fills for roundness
        draw_rect_bar(commands, cx - radius * 0.85f, cy - radius * 0.35f, cx + radius * 0.85f, cy + radius * 0.35f, (argb & 0x00FFFFFF) | 0x55000000);
        draw_rect_bar(commands, cx - radius * 0.35f, cy - radius * 0.85f, cx + radius * 0.35f, cy + radius * 0.85f, (argb & 0x00FFFFFF) | 0x55000000);
        // Border rings
        draw_circle(commands, cx, cy, radius, argb, 20);
        draw_circle(commands, cx, cy, radius - 1.0f, (argb & 0x00FFFFFF) | 0x40000000, 20);
    }

    static double get_time_sec() {
        using namespace std::chrono;
        return duration_cast<duration<double>>(steady_clock::now().time_since_epoch()).count();
    }

    bool enabled_ = false;
    int screen_w_ = 1280;
    int screen_h_ = 720;

    bool controls_were_visible_ = false;
    int64_t ui_touch_finger_id_ = -1;

    bool joystick_active_ = false;
    int64_t joystick_finger_id_ = -1;
    float joystick_base_x_ = 140.0f;
    float joystick_base_y_ = 580.0f;
    float joystick_knob_x_ = 140.0f;
    float joystick_knob_y_ = 580.0f;
    float joystick_radius_ = 65.0f;
    float joystick_knob_radius_ = 28.0f;
    float move_angle_ = 0.0f;

    int64_t camera_finger_id_ = -1;
    float camera_start_x_ = 0.0f;
    float camera_start_y_ = 0.0f;
    float camera_last_x_ = 0.0f;
    float camera_last_y_ = 0.0f;
    double camera_down_time_ = 0.0;
    bool camera_dragged_ = false;

    int64_t pinch_finger1_ = -1;
    int64_t pinch_finger2_ = -1;
    float pinch_last_dist_ = 0.0f;

    std::vector<ButtonDef> buttons_;
};