Initial Commit

src/InputManager.hpp

@@ -0,0 +1,220 @@
+#pragma once
+#include <Eigen/Dense>
+#include <array>
+#include "TimePoint.hpp"
+#include <Helpers/Hashes.hpp>
+#include <unordered_map>
+#include <nlohmann/json.hpp>
+#include <queue>
+
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_events.h>
+#include <SDL3/SDL_keycode.h>
+
+using namespace Eigen;
+
+struct InputManager {
+    InputManager();
+
+    void frame_reset(const Vector2i& windowSize);
+    
+    // Just renamed SDL3 cursor types, but if we need to change to a different backend we can
+    // translate this enum to different commands in main.cpp
+    enum class SystemCursorType : unsigned {
+        DEFAULT = 0,
+        TEXT,
+        WAIT,
+        CROSSHAIR,
+        PROGRESS,
+        NWSE_RESIZE,
+        NESW_RESIZE,
+        EW_RESIZE,
+        NS_RESIZE,
+        MOVE,
+        NOT_ALLOWED,
+        POINTER,
+        NW_RESIZE,
+        N_RESIZE,
+        NE_RESIZE,
+        E_RESIZE,  
+        SE_RESIZE,
+        S_RESIZE,
+        SW_RESIZE,
+        W_RESIZE
+    } cursorIcon;
+    bool hideCursor = false;
+
+    bool toggleFullscreen = false;
+
+    struct KeyData {
+        bool pressed = false;
+        bool held = false;
+        bool repeat = false;
+        std::chrono::steady_clock::time_point lastPressTime;
+    };
+
+    struct Mouse {
+        void set_pos(const Vector2f& newPos);
+        Vector2f scrollAmount = {0, 0};
+        Vector2f pos = {0, 0};
+        Vector2f previousPos = {0, 0};
+        Vector2f move = {0, 0};
+        bool leftDown = false;
+        bool rightDown = false;
+        bool middleDown = false;
+        uint8_t leftClicks = 0;
+        uint8_t rightClicks = 0;
+        uint8_t middleClicks = 0;
+        Vector2f lastPos = {0, 0};
+        friend struct InputManager;
+    } mouse;
+
+    struct Pen {
+        bool inProximity = false;
+        bool isDown = false;
+        bool isEraser = false;
+        float pressure = 0.0f;
+        std::array<KeyData, 256> buttons;
+    } pen;
+
+    struct Text {
+        std::string newInput;
+        bool lastAcceptingTextInputVal = false;
+
+        void set_accepting_input();
+        bool get_accepting_input();
+        private:
+            bool acceptingInput = false;
+            bool acceptingInputNew = false;
+            friend struct InputManager;
+    } text;
+
+    struct DroppedItem {
+        bool isFile;
+        Vector2f pos;
+        std::string droppedData;
+    };
+
+#ifdef __APPLE__
+    SDL_Keymod CTRL_MOD = SDL_KMOD_GUI;
+#else
+    SDL_Keymod CTRL_MOD = SDL_KMOD_CTRL;
+#endif
+
+    int stopKeyInput = 0;
+    std::optional<Vector2ui32> lastPressedKeybind;
+
+    std::vector<DroppedItem> droppedItems;
+
+    void text_input_silence_everything();
+
+    enum KeyCodeEnum : unsigned {
+        // Assignable
+        KEY_CAMERA_ROTATE_CLOCKWISE = 0,
+        KEY_CAMERA_ROTATE_COUNTERCLOCKWISE,
+        KEY_DRAW_DELETE,
+        KEY_DRAW_UNSELECT,
+        KEY_UNDO,
+        KEY_REDO,
+        KEY_NOGUI,
+        KEY_FULLSCREEN,
+        KEY_SAVE,
+        KEY_SAVE_AS,
+        KEY_COPY,
+        KEY_CUT,
+        KEY_PASTE,
+        KEY_DRAW_TOOL_BRUSH,
+        KEY_DRAW_TOOL_ERASER,
+        KEY_DRAW_TOOL_TEXTBOX,
+        KEY_DRAW_TOOL_RECTANGLE,
+        KEY_DRAW_TOOL_ELLIPSE,
+        KEY_DRAW_TOOL_RECTSELECT,
+        KEY_DRAW_TOOL_EDIT,
+        KEY_DRAW_TOOL_INKDROPPER,
+        KEY_DRAW_TOOL_SCREENSHOT,
+        KEY_SHOW_METRICS,
+        KEY_OPEN_CHAT,
+        KEY_SHOW_PLAYER_LIST,
+
+        KEY_ASSIGNABLE_COUNT, // Not a real key
+
+        // Unassignable
+        KEY_TEXT_DOWN,
+        KEY_TEXT_UP,
+        KEY_TEXT_LEFT,
+        KEY_TEXT_RIGHT,
+        KEY_TEXT_BACKSPACE,
+        KEY_TEXT_DELETE,
+        KEY_TEXT_HOME,
+        KEY_TEXT_SHIFT,
+        KEY_TEXT_COPY,
+        KEY_TEXT_CUT,
+        KEY_TEXT_PASTE,
+        KEY_TEXT_ENTER,
+        KEY_TEXT_CTRL,
+        KEY_TEXT_SELECTALL,
+        KEY_TEXT_ESCAPE,
+        KEY_ZOOM_SHIFT,
+        KEY_ZOOM_CTRL,
+        KEY_EQUAL_DIMENSIONS,
+        KEY_COUNT
+    };
+
+    typedef unsigned KeyCode;
+
+    void stop_key_input();
+    void set_pen_button_up(const SDL_PenButtonEvent& e);
+    void set_pen_button_down(const SDL_PenButtonEvent& e);
+    uint32_t make_generic_key_mod(SDL_Keymod m);
+
+    void set_key_up(const SDL_KeyboardEvent& e, KeyCode kCode);
+    void set_key_down(const SDL_KeyboardEvent& e, KeyCode kCode);
+    void backend_key_up_update(const SDL_KeyboardEvent& e);
+    void backend_key_down_update(const SDL_KeyboardEvent& e);
+
+    bool get_clipboard_paste_happened();
+    std::string get_clipboard_str();
+    void set_clipboard_str(std::string_view s);
+
+#ifdef __EMSCRIPTEN__
+    bool clipboardPasteEventHappened = false;
+    std::string clipboardPasteEventData;
+#endif
+
+    std::string key_assignment_to_str(const Vector2ui32& k);
+    Vector2ui32 key_assignment_from_str(const std::string& s);
+
+    const KeyData& key(KeyCode kCode);
+
+    std::unordered_map<Vector2ui32, KeyCode> keyAssignments;
+    std::unordered_map<Vector2ui32, KeyCode> defaultKeyAssignments;
+    std::array<KeyData, KEY_COUNT> keys;
+};
+
+NLOHMANN_JSON_SERIALIZE_ENUM(InputManager::KeyCodeEnum, {
+    {InputManager::KEY_CAMERA_ROTATE_CLOCKWISE, "Rotate Canvas CW"},
+    {InputManager::KEY_CAMERA_ROTATE_COUNTERCLOCKWISE, "Rotate Canvas CCW"},
+    {InputManager::KEY_DRAW_DELETE, "Delete Selection"},
+    {InputManager::KEY_DRAW_UNSELECT, "Unselect Elements"},
+    {InputManager::KEY_UNDO, "Undo"},
+    {InputManager::KEY_REDO, "Redo"},
+    {InputManager::KEY_NOGUI, "Toggle GUI"},
+    {InputManager::KEY_FULLSCREEN, "Toggle Fullscreen"},
+    {InputManager::KEY_SAVE, "Save"},
+    {InputManager::KEY_SAVE_AS, "Save As"},
+    {InputManager::KEY_COPY, "Copy"},
+    {InputManager::KEY_CUT, "Cut"},
+    {InputManager::KEY_PASTE, "Paste"},
+    {InputManager::KEY_DRAW_TOOL_BRUSH, "Brush Tool"},
+    {InputManager::KEY_DRAW_TOOL_ERASER, "Eraser Tool"},
+    {InputManager::KEY_DRAW_TOOL_TEXTBOX, "Textbox Tool"},
+    {InputManager::KEY_DRAW_TOOL_RECTANGLE, "Rectangle Tool"},
+    {InputManager::KEY_DRAW_TOOL_ELLIPSE, "Ellipse Tool"},
+    {InputManager::KEY_DRAW_TOOL_RECTSELECT, "Rect Select Tool"},
+    {InputManager::KEY_DRAW_TOOL_INKDROPPER, "Color Select Tool"},
+    {InputManager::KEY_DRAW_TOOL_EDIT, "Edit Tool"},
+    {InputManager::KEY_DRAW_TOOL_SCREENSHOT, "Screenshot Tool"},
+    {InputManager::KEY_SHOW_METRICS, "Show Metrics"},
+    {InputManager::KEY_OPEN_CHAT, "Open Chat"},
+    {InputManager::KEY_SHOW_PLAYER_LIST, "Show Player List"}
+})