Mouse input

src/common/display/canvas.ts

@@ -1,3 +1,5 @@
+import Input from "@common/input";
+
 export function loadImageData(dataView: DataView, pointer: number) {
     const width = dataView.getUint16(pointer + 0, true);
     const height = dataView.getUint16(pointer + 2, true);
@@ -25,6 +27,8 @@ export function createCanvas(width: number, height: number) {
     document.body.style.alignItems = 'center';
     document.body.append(canvas);
 
+    Input.setMainCanvas(canvas);
+
     return canvas;
 }
 

src/common/display/text.ts

@@ -1,8 +1,9 @@
 import '@common/assets/fonts/vga.font.css';
 import { randInt } from "@common/utils";
 import { createCanvas } from './canvas';
-import type { Rect } from '@common/geometry';
+import type { Point, Rect } from '@common/geometry';
 import { bresenhamCircleGen, bresenhamLineGen, type BresenhamCircleOptions, type BresenhamLineOptions } from '@common/navigation/bresenham';
+import Input from '@common/input';
 
 export type ColorLike = string | number | Color;
 export type Char = [string, ColorLike?, ColorLike?] | string;
@@ -450,6 +451,14 @@ export class TextDisplay {
     update() {
         this.redrawDirty();
     }
+
+    getMousePosition(): Point {
+        const pos = Input.getMousePosition();
+        return {
+            x: Math.floor(pos.x / CHAR_W),
+            y: Math.floor(pos.y / CHAR_H),
+        };
+    }
 }
 
 function expandColors(chars: string[] | Char[][], colors: ColorLike | ColorLike[] | ColorLike[][]): ColorLike[][] {
@@ -484,8 +493,8 @@ export class TextRegion {
 
     constructor(
         chars: Char[][] | string | string[],
-        fg: ColorLike | ColorLike[] | ColorLike[][] = DEFAULT_BG,
+        fg: ColorLike | ColorLike[] | ColorLike[][] = DEFAULT_FG,
-        bg: ColorLike | ColorLike[] | ColorLike[][] = DEFAULT_FG,
+        bg: ColorLike | ColorLike[] | ColorLike[][] = DEFAULT_BG,
     ) {
         if (typeof chars === 'string') {
             chars = chars.split('\n');

src/common/dom.ts

@@ -5,15 +5,11 @@ export interface EventWithPoint {
 
 export const getRealPoint = (canvas: HTMLCanvasElement, e: EventWithPoint): DOMPoint => {
     const matrix = new DOMMatrix();
-    const scale = Math.min(canvas.clientWidth / canvas.width, canvas.clientHeight / canvas.height);
-    
-    const realWidth = canvas.width * scale;
-    const realHeight = canvas.height * scale;
 
-    const offsetLeft = (canvas.clientWidth - realWidth) / 2;
+    const box = canvas.getBoundingClientRect();
-    const offsetTop = (canvas.clientHeight - realHeight) / 2;
+    const scale = Math.min(box.width / canvas.width, box.height / canvas.height);
 
-    matrix.translateSelf(offsetLeft, offsetTop);
+    matrix.translateSelf(box.left, box.top);
     matrix.scaleSelf(scale);
     matrix.invertSelf();
 

src/common/game.ts

@@ -4,6 +4,7 @@ import { nextFrame } from "./utils";
 
 interface FrameMeta {
     fps: number;
+    now: number;
 }
 type Awaitable<T> = PromiseLike<T> | T;
 
@@ -32,7 +33,7 @@ export function gameLoop<T>(setupOrFrame: Setup<T> | Frame<T>, frame?: Frame<T>)
             let prevFrame = performance.now();
             let fpsCounter = 0;
             let fpsTimer = 0;
-            const meta: FrameMeta = { fps: 0 };
+            const meta: FrameMeta = { fps: 0, now: 0 };
             while (true) {
                 await nextFrame();
                 Input.updateKeys();
@@ -41,6 +42,7 @@ export function gameLoop<T>(setupOrFrame: Setup<T> | Frame<T>, frame?: Frame<T>)
                 const dt = (now - prevFrame) / 1000;
 
                 if (dt < 1) { // skip long pause to avoid blowing up values
+                    meta.now += dt;
                     const newState = await frame(dt, state, meta);
                     if (newState) {
                         state = newState;

src/common/input.ts

@@ -1,10 +1,18 @@
+import { getRealPoint } from "./dom";
+import type { Point } from "./geometry";
+
 interface IKeyState {
     state: boolean;
     prevState?: boolean;
 
     released?: boolean;
     pressed?: boolean;
+    repeated?: boolean;
     held?: boolean;
+
+    changedAt: number;
+    eventAt: number;
+    repeatAt?: number;
 }
 namespace Input {
     export enum KeyCode {
@@ -16,6 +24,46 @@ namespace Input {
         SHIFT = 'Shift',
         SHIFT_LEFT = 'ShiftLeft',
         SHIFT_RIGHT = 'ShiftRight',
+        A = 'KeyA',
+        B = 'KeyB',
+        C = 'KeyC',
+        D = 'KeyD',
+        E = 'KeyE',
+        F = 'KeyF',
+        G = 'KeyG',
+        H = 'KeyH',
+        I = 'KeyI',
+        J = 'KeyJ',
+        K = 'KeyK',
+        L = 'KeyL',
+        M = 'KeyM',
+        N = 'KeyN',
+        O = 'KeyO',
+        P = 'KeyP',
+        Q = 'KeyQ',
+        R = 'KeyR',
+        S = 'KeyS',
+        T = 'KeyT',
+        U = 'KeyU',
+        V = 'KeyV',
+        W = 'KeyW',
+        X = 'KeyX',
+        Y = 'KeyY',
+        Z = 'KeyZ',
+        NUM_0 = 'Digit0',
+        NUM_1 = 'Digit1',
+        NUM_2 = 'Digit2',
+        NUM_3 = 'Digit3',
+        NUM_4 = 'Digit4',
+        NUM_5 = 'Digit5',
+        NUM_6 = 'Digit6',
+        NUM_7 = 'Digit7',
+        NUM_8 = 'Digit8',
+        NUM_9 = 'Digit9',
+
+        MOUSE_LEFT = `Mouse0`,
+        MOUSE_MIDDLE = `Mouse1`,
+        MOUSE_RIGHT = `Mouse2`,
     };
 
     export enum GamepadAxis {
@@ -46,14 +94,24 @@ namespace Input {
     }
 
     const DEAD_ZONE = 0.05;
-    const KEYS: Partial<Record<KeyCode, IKeyState>> = {};
+    const KEYS: Partial<Record<string, IKeyState>> = {};
+    const mousePosition: Point = { x: 0, y: 0 };
+    let mainCanvas: HTMLCanvasElement | null = null;
+    let repeatIntervalMs = 10;
+    let repeatDelayMs = 300;
 
-    const onStateChange = (keyId: KeyCode, state: boolean) => {
+    const onStateChange = (keyId: string, state: boolean) => {
         console.debug(`[Input] ${state ? 'Pressed' : 'Released'} ${keyId}`);
+        const now = Date.now();
+
         if (KEYS[keyId]) {
+            if (state !== KEYS[keyId].state) {
+                KEYS[keyId].changedAt = now;
+            }
             KEYS[keyId].state = state;
+            KEYS[keyId].eventAt = now;
         } else {
-            KEYS[keyId] = { state };
+            KEYS[keyId] = { state, changedAt: now, eventAt: now };
         }
 
         if (keyId === KeyCode.SHIFT_LEFT || keyId === KeyCode.SHIFT_RIGHT) {
@@ -62,12 +120,39 @@ namespace Input {
         }
     };
 
+    const onMouseChange = (e: MouseEvent) => {
+        if (mainCanvas) {
+            const point = getRealPoint(mainCanvas, e);
+            mousePosition.x = point.x;
+            mousePosition.y = point.y;
+        } else {
+            mousePosition.x = e.clientX;
+            mousePosition.y = e.clientY;
+        }
+    }
+
     document.body.addEventListener('keydown', (e) => onStateChange(e.code as KeyCode, true));
     document.body.addEventListener('keyup', (e) => onStateChange(e.code as KeyCode, false));
+    document.body.addEventListener('mousedown', (e) => {
+        onStateChange(`Mouse${e.button}`, true);
+        onMouseChange(e);
+    });
+    document.body.addEventListener('mouseup', (e) => {
+        onStateChange(`Mouse${e.button}`, false);
+        onMouseChange(e);
+    });
+    document.body.addEventListener('mousemove', (e) => onMouseChange(e));
+    document.body.addEventListener('contextmenu', (e) => e.preventDefault());
 
-    export const isPressed = (key: KeyCode): boolean => KEYS[key]?.pressed ?? false;
+    export const isPressed = (...keys: KeyCode[]) => keys.some(key => KEYS[key]?.pressed);
-    export const isReleased = (key: KeyCode): boolean => KEYS[key]?.released ?? false;
+    export const isReleased = (...keys: KeyCode[]) => keys.some(key => KEYS[key]?.released);
-    export const isHeld = (key: KeyCode): boolean => KEYS[key]?.held ?? false;
+    export const isRepeated = (...keys: KeyCode[]) => keys.some(key => KEYS[key]?.repeated);
+    export const isHeld = (...keys: KeyCode[]) => keys.some(key => KEYS[key]?.held);
+
+    export const hasPressed = () => Object.values(KEYS).some(k => k?.pressed);
+    export const hasReleased = () => Object.values(KEYS).some(k => k?.released);
+    export const hasRepeated = () => Object.values(KEYS).some(k => k?.repeated);
+    export const hasHeld = () => Object.values(KEYS).some(k => k?.held);
 
     export const getGamepad = () => navigator.getGamepads().find(g => g != null);
 
@@ -93,8 +178,24 @@ namespace Input {
         + getGamepadAxis(GamepadAxis.LY)
     );
 
+    export const getMousePosition = (): Point => ({ ...mousePosition });
+
+    export const setRepeatInterval = (intervalMs: number) => {
+        repeatIntervalMs = intervalMs;
+    }
+
+    export const setRepeatDelay = (delayMs: number) => {
+        repeatDelayMs = delayMs;
+    }
+
+    export const setMainCanvas = (canvas: HTMLCanvasElement | null) => {
+        mainCanvas = canvas;
+    }
+
     export function updateKeys() {
         for (const key of Object.values(KEYS)) {
+            if (!key) continue;
+
             key.released = false;
             key.pressed = false;
 
@@ -102,10 +203,15 @@ namespace Input {
                 key.pressed = !key.held;
                 key.held = true;
             } else {
-                key.released = true;
+                key.released = key.held;
                 key.held = false;
             }
 
+            const now = Date.now();
+            key.repeated = key.held && (now - (key.repeatAt ?? 0) > repeatIntervalMs) && (now - key.changedAt > repeatDelayMs);
+            if (key.repeated) {
+                key.repeatAt = now;
+            }
             key.prevState = key.state;
         }
     }

src/common/rpg/components/render/viewport.ts

@@ -1,6 +1,7 @@
 import { Component, World } from "@common/rpg/core/world";
 import { component } from "@common/rpg/utils/decorators";
 import { getPosition, Position } from "../position";
+import type { Point } from "@common/geometry";
 
 export interface ViewportData {
     screenX: number;
@@ -13,7 +14,6 @@ export interface ViewportData {
 
 @component
 export class Viewport extends Component<void> {
-
     get screenX(): number {
         return Math.round(getPosition(this.entity, 'screen')?.x ?? 0);
     }
@@ -37,6 +37,20 @@ export class Viewport extends Component<void> {
     get worldY(): number {
         return Math.round(getPosition(this.entity)?.y ?? 0);
     }
+
+    screenToWorld = ({ x, y }: Point): Point => {
+        return {
+            x: x - this.screenX + this.worldX,
+            y: y - this.screenY + this.worldY,
+        };
+    }
+
+    worldToScreen = ({ x, y }: Point): Point => {
+        return {
+            x: x - this.worldX + this.screenX,
+            y: y - this.worldY + this.screenY,
+        };
+    }
 }
 
 export const createViewport = (world: World, viewportData: ViewportData) => {
@@ -49,16 +63,9 @@ export const createViewport = (world: World, viewportData: ViewportData) => {
     return viewport;
 }
 
-export const getViewport = (world: World): ViewportData | null => {
+export const getViewport = (world: World): Viewport | null => {
     for (const [, , viewport] of world.query(Viewport)) {
-        return {
+        return viewport;
-            screenX: viewport.screenX,
-            screenY: viewport.screenY,
-            width: viewport.width,
-            height: viewport.height,
-            worldX: viewport.worldX,
-            worldY: viewport.worldY,
-        }
     }
 
     return null;

src/common/rpg/systems/render/text.ts

@@ -17,16 +17,20 @@ export class TextDisplaySystem extends System {
 
     override update(world: World) {
         const viewport = getViewport(world);
-        const offset = viewport ? {
+        const offset = viewport ? viewport.screenToWorld({ x: 0, y: 0 }) : undefined;
-            x: viewport.worldX - viewport.screenX,
+        const viewportClipRect = viewport ? {
-            y: viewport.worldY - viewport.screenY,
+            x: viewport.screenX,
-        } : { x: 0, y: 0 };
+            y: viewport.screenY,
+            width: viewport.width,
+            height: viewport.height,
+        } : undefined;
 
         const sprites = Array.from(world.query(Sprite, Position))
             .sort((a, b) => Number(a[2].absolute) - Number(b[2].absolute) || a[2].z - b[2].z);
 
         for (const [e, sprite, pos] of sprites) {
             if (e.has(Hidden)) continue;
+
             const image = sprite.image;
             const { x, y, absolute } = pos;
 
@@ -37,13 +41,11 @@ export class TextDisplaySystem extends System {
 
             const region = data instanceof TextRegion ? data : new TextRegion(data);
 
-            if (absolute) {
+            if (absolute || !offset || !viewportClipRect) {
                 this.display.setRegion(x, y, region);
             } else {
                 const clipRect = this.display.getClipRect();
-                if (viewport) {
+                this.display.setClipRect(viewportClipRect);
-                    this.display.setClipRect({ x: viewport.screenX, y: viewport.screenY, width: viewport.width, height: viewport.height });
-                }
                 this.display.setRegion(x - offset.x, y - offset.y, region);
                 this.display.setClipRect(clipRect);
             }

src/games/crawler/index.ts

@@ -52,7 +52,50 @@ function createPlayer(world: World, x = 0, y = 0) {
     return player;
 }
 
+function handleMovement() {
+    let dx = 0;
+    let dy = 0;
+
+    const isReleasedOrRepeated = (...keys: Input.KeyCode[]) =>
+        keys.some(key => Input.isReleased(key) || Input.isRepeated(key));
+
+    const left = isReleasedOrRepeated(Input.KeyCode.LEFT, Input.KeyCode.H);
+    const right = isReleasedOrRepeated(Input.KeyCode.RIGHT, Input.KeyCode.L);
+    const up = isReleasedOrRepeated(Input.KeyCode.UP, Input.KeyCode.K);
+    const down = isReleasedOrRepeated(Input.KeyCode.DOWN, Input.KeyCode.J);
+
+    const upLeft = isReleasedOrRepeated(Input.KeyCode.Y);
+    const upRight = isReleasedOrRepeated(Input.KeyCode.U);
+    const downLeft = isReleasedOrRepeated(Input.KeyCode.B);
+    const downRight = isReleasedOrRepeated(Input.KeyCode.N);
+
+    if (left) dx -= 1;
+    if (right) dx += 1;
+    if (up) dy -= 1;
+    if (down) dy += 1;
+
+    if (upLeft) {
+        dx -= 1;
+        dy -= 1;
+    }
+    if (upRight) {
+        dx += 1;
+        dy -= 1;
+    }
+    if (downLeft) {
+        dx -= 1;
+        dy += 1;
+    }
+    if (downRight) {
+        dx += 1;
+        dy += 1;
+    }
+
+    return { dx, dy };
+}
+
 export default gameLoop(() => {
+    Input.setRepeatInterval(50);
     const world = new World();
     const display = world.addSystem(new TextDisplaySystem(100, 25)).display;
 
@@ -82,7 +125,7 @@ export default gameLoop(() => {
     });
     const player = createPlayer(world, startCell.x, startCell.y);
 
-    return {
+    const state = {
         display,
         world,
         map, mapData,
@@ -90,69 +133,74 @@ export default gameLoop(() => {
         random,
         viewport,
         player,
-        lastMove: 0, now: 0,
         isWall: (x: number, y: number): boolean => {
-            const [ch] = mapData.get(x, y);
+            const [ch] = state.mapData.get(x, y);
             return ch === WALL;
         },
+        updateMask: () => {
+            if (!state.maskDirty) return;
+
+            const { mapData, maskData, player, isWall } = state;
+
+            const playerPos = getPosition(player)!;
+            for (let x = 0; x < mapData.width; x++) {
+                for (let y = 0; y < mapData.height; y++) {
+                    const [ch, fg] = maskData.get(x + mapData.width, y + mapData.height);
+                    if (ch !== ' ' && fg !== Color.GRAY) {
+                        maskData.set(x + mapData.width, y + mapData.height, [mapData.get(x, y)[0], Color.GRAY]);
+                    }
+                }
+            }
+            for (const { x, y } of bresenhamCircleGen(playerPos.x, playerPos.y, 10, { fill: 'shadow', breaker: isWall })) {
+                maskData.set(x + mapData.width, y + mapData.height, '\0');
+            }
+            state.maskDirty = false;
+        }
     };
+
+    return state;
 }, (dt, state) => {
     const {
         world,
         viewport,
         player,
-        lastMove, now,
+        updateMask,
-        mapData, maskData,
         isWall,
     } = state;
 
-    let dx = -Math.sign(Input.getHorizontal());
+    const hasInput = Input.hasReleased() || Input.hasRepeated();
-    let dy = -Math.sign(Input.getVertical());
     const playerPos = getPosition(player)!;
 
-    if (now - lastMove > 0.05) {
+    if (hasInput) {
-        if (isWall(playerPos.x + dx, playerPos.y)) {
+        if (Input.isHeld(Input.KeyCode.SHIFT)) {
-            dx = 0;
+        } else {
-        }
+            let { dx, dy } = handleMovement();
-        if (isWall(playerPos.x, playerPos.y + dy)) {
-            dy = 0;
-        }
-        if (isWall(playerPos.x + dx, playerPos.y + dy)) {
-            dx = 0
-            dy = 0;
-        }
-    } else {
-        dx = 0;
-        dy = 0;
-    }
 
-    if (dx || dy) {
+            if (isWall(playerPos.x + dx, playerPos.y)) {
-        move(player, dx, dy);
+                dx = 0;
-        move(viewport, dx, dy);
+            }
+            if (isWall(playerPos.x, playerPos.y + dy)) {
+                dy = 0;
+            }
+            if (isWall(playerPos.x + dx, playerPos.y + dy)) {
+                dx = 0
+                dy = 0;
+            }
 
-        playerPos.x + dx;
+            if (dx || dy) {
-        playerPos.y + dy;
+                move(player, dx, dy);
+                move(viewport, dx, dy);
 
-        state.maskDirty = true;
+                playerPos.x + dx;
-        state.lastMove = now;
+                playerPos.y + dy;
-    }
-
-    if (state.maskDirty) {
-        for (let x = 0; x < mapData.width; x++) {
-            for (let y = 0; y < mapData.height; y++) {
-                const [ch, fg] = maskData.get(x + mapData.width, y + mapData.height);
-                if (ch !== ' ' && fg !== Color.GRAY) {
-                    maskData.set(x + mapData.width, y + mapData.height, [mapData.get(x, y)[0], Color.GRAY]);
-                }
             }
         }
-        for (const { x, y } of bresenhamCircleGen(playerPos.x, playerPos.y, 10, { fill: 'shadow', breaker: isWall })) {
+
-            maskData.set(x + mapData.width, y + mapData.height, '\0');
+        // TODO environment step
-        }
+
-        state.maskDirty = false;
+        state.maskDirty = true;
     }
 
+    updateMask();
     world.update(dt);
-
-    state.now += dt;
 });