Initial commit

2026-02-24 15:36:10 -03:00
commit fe885a9e24
42 changed files with 2383 additions and 0 deletions
@@ -0,0 +1,200 @@
+export type KeyCode =
+	// letters
+	| "KeyA"
+	| "KeyB"
+	| "KeyC"
+	| "KeyD"
+	| "KeyE"
+	| "KeyF"
+	| "KeyG"
+	| "KeyH"
+	| "KeyI"
+	| "KeyJ"
+	| "KeyK"
+	| "KeyL"
+	| "KeyM"
+	| "KeyN"
+	| "KeyO"
+	| "KeyP"
+	| "KeyQ"
+	| "KeyR"
+	| "KeyS"
+	| "KeyT"
+	| "KeyU"
+	| "KeyV"
+	| "KeyW"
+	| "KeyX"
+	| "KeyY"
+	| "KeyZ"
+	// top numbers
+	| "Digit0"
+	| "Digit1"
+	| "Digit2"
+	| "Digit3"
+	| "Digit4"
+	| "Digit5"
+	| "Digit6"
+	| "Digit7"
+	| "Digit8"
+	| "Digit9"
+	// arrows
+	| "ArrowUp"
+	| "ArrowDown"
+	| "ArrowLeft"
+	| "ArrowRight"
+	// controls
+	| "Space"
+	| "Escape"
+	| "Enter"
+	| "Tab"
+	| "ShiftLeft"
+	| "ShiftRight"
+	| "ControlLeft"
+	| "ControlRight"
+	| "AltLeft"
+	| "AltRight"
+	| "Home"
+	| "End"
+	| "Backspace"
+	| "Delete"
+	// f
+	| "F1"
+	| "F2"
+	| "F3"
+	| "F4"
+	| "F5"
+	| "F6"
+	| "F7"
+	| "F8"
+	| "F9"
+	| "F10"
+	| "F11"
+	| "F12";
+
+export class InputManager {
+	static keys_down = new Set<string>();
+	static keys_pressed = new Set<string>();
+	static keys_released = new Set<string>();
+
+	static mouse_buttons_down = new Set<number>();
+	static mouse_buttons_pressed = new Set<number>();
+	static mouse_buttons_released = new Set<number>();
+	static mouse_buttons_consumed = new Set<number>();
+
+	static mouse_x = 0;
+	static mouse_y = 0;
+	static mouse_delta_x = 0;
+	static mouse_delta_y = 0;
+	static wheel_delta = 0;
+
+	static typed_characters = new Set<string>();
+
+	static initialize(canvas: HTMLCanvasElement) {
+		self.addEventListener("keydown", (e) => {
+			e.preventDefault();
+			if (!this.keys_down.has(e.code)) {
+				this.keys_pressed.add(e.code);
+			}
+			this.keys_down.add(e.code);
+			if (e.key.length === 1) {
+				this.typed_characters.add(e.key);
+			}
+		});
+
+		self.addEventListener("keyup", (e) => {
+			e.preventDefault();
+			this.keys_down.delete(e.code);
+			this.keys_released.add(e.code);
+		});
+
+		self.addEventListener("mousedown", (e) => {
+			e.preventDefault();
+			if (!this.mouse_buttons_down.has(e.button)) {
+				this.mouse_buttons_pressed.add(e.button);
+			}
+			this.mouse_buttons_down.add(e.button);
+		});
+
+		self.addEventListener("mouseup", (e) => {
+			e.preventDefault();
+			this.mouse_buttons_down.delete(e.button);
+			this.mouse_buttons_released.add(e.button);
+		});
+
+		self.addEventListener("mousemove", (e) => {
+			e.preventDefault();
+			const rect = canvas.getBoundingClientRect();
+			const new_x = e.clientX - rect.left;
+			const new_y = e.clientY - rect.top;
+
+			this.mouse_delta_x += new_x - this.mouse_x;
+			this.mouse_delta_y += new_y - this.mouse_y;
+
+			this.mouse_x = new_x;
+			this.mouse_y = new_y;
+		});
+
+		self.addEventListener("wheel", (e) => {
+			this.wheel_delta += e.deltaY;
+		});
+	}
+
+	static is_key_down(code: KeyCode): boolean {
+		return this.keys_down.has(code);
+	}
+
+	static is_key_pressed(code: KeyCode): boolean {
+		return this.keys_pressed.has(code);
+	}
+
+	static is_key_released(code: KeyCode): boolean {
+		return this.keys_released.has(code);
+	}
+
+	static is_mouse_down(button: number): boolean {
+		return this.mouse_buttons_down.has(button);
+	}
+
+	static is_mouse_pressed(button: number): boolean {
+		return this.mouse_buttons_pressed.has(button) &&
+			!this.mouse_buttons_consumed.has(button);
+	}
+
+	static is_mouse_released(button: number): boolean {
+		return this.mouse_buttons_released.has(button);
+	}
+
+	static get_mouse_position() {
+		return { x: this.mouse_x, y: this.mouse_y };
+	}
+
+	static get_mouse_delta() {
+		return { x: this.mouse_delta_x, y: this.mouse_delta_y };
+	}
+
+	static get_wheel_delta(): number {
+		return this.wheel_delta;
+	}
+
+	static consume_mouse(button: number) {
+		this.mouse_buttons_consumed.add(button);
+	}
+
+	static get_typed_characters(): string[] {
+		const chars = [...this.typed_characters];
+		this.typed_characters.clear();
+		return chars;
+	}
+
+	static update() {
+		this.keys_pressed.clear();
+		this.keys_released.clear();
+		this.mouse_buttons_pressed.clear();
+		this.mouse_buttons_released.clear();
+		this.mouse_delta_x = 0;
+		this.mouse_delta_y = 0;
+		this.wheel_delta = 0;
+		this.typed_characters.clear();
+		this.mouse_buttons_consumed.clear();
+	}
+}