better name tags and rounded bubble

src/client/object/canvas-utils.ts

@@ -1,6 +1,88 @@
 import { CanvasTexture, LinearFilter, ClampToEdgeWrapping } from 'three';
 
+/**
+ * Draws a rounded rectangle using the current state of the canvas.
+ * If you omit the last three params, it will draw a rectangle
+ * outline with a 5 pixel border radius
+ *
+ * https://stackoverflow.com/a/3368118
+ *
+ * @param {CanvasRenderingContext2D} ctx
+ * @param {Number} x The top left x coordinate
+ * @param {Number} y The top left y coordinate
+ * @param {Number} width The width of the rectangle
+ * @param {Number} height The height of the rectangle
+ * @param {Number} [radius = 5] The corner radius; It can also be an object
+ *                 to specify different radii for corners
+ * @param {Number} [radius.tl = 0] Top left
+ * @param {Number} [radius.tr = 0] Top right
+ * @param {Number} [radius.br = 0] Bottom right
+ * @param {Number} [radius.bl = 0] Bottom left
+ * @param {Boolean} [fill = false] Whether to fill the rectangle.
+ * @param {Boolean} [stroke = true] Whether to stroke the rectangle.
+ */
+export function roundRect(
+  ctx: CanvasRenderingContext2D,
+  x: number,
+  y: number,
+  width: number,
+  height: number,
+  radius: number | { tl: number; tr: number; br: number; bl: number },
+  fill: boolean,
+  stroke: boolean,
+) {
+  if (typeof stroke === 'undefined') {
+    stroke = true;
+  }
+  if (typeof radius === 'undefined') {
+    radius = 5;
+  }
+  if (typeof radius === 'number') {
+    radius = { tl: radius, tr: radius, br: radius, bl: radius };
+  } else {
+    var defaultRadius = { tl: 0, tr: 0, br: 0, bl: 0 };
+    for (var side in defaultRadius) {
+      radius[side] = radius[side] || defaultRadius[side];
+    }
+  }
+  ctx.beginPath();
+  ctx.moveTo(x + radius.tl, y);
+  ctx.lineTo(x + width - radius.tr, y);
+  ctx.quadraticCurveTo(x + width, y, x + width, y + radius.tr);
+  ctx.lineTo(x + width, y + height - radius.br);
+  ctx.quadraticCurveTo(
+    x + width,
+    y + height,
+    x + width - radius.br,
+    y + height,
+  );
+  ctx.lineTo(x + radius.bl, y + height);
+  ctx.quadraticCurveTo(x, y + height, x, y + height - radius.bl);
+  ctx.lineTo(x, y + radius.tl);
+  ctx.quadraticCurveTo(x, y, x + radius.tl, y);
+  ctx.closePath();
+  if (fill) {
+    ctx.fill();
+  }
+  if (stroke) {
+    ctx.stroke();
+  }
+}
+
+export interface CanvasUtilsOptions {
+  fill?: boolean;
+  backgroundColor?: string;
+  foregroundColor?: string;
+  rounded?: boolean;
+  roundedRadius?: number;
+  textBorderColor?: string;
+  textBorderSize?: number;
+  textShadowBlur?: number;
+}
+
 export class CanvasUtils {
+  constructor(private options?: CanvasUtilsOptions) {}
+
   public createTextCanvas(
     text: string | string[],
     bold = true,
@@ -37,14 +119,47 @@ export class CanvasUtils {
     ctx.textAlign = 'center';
 
     // Draw background
-    ctx.fillStyle = '#fff';
-    ctx.fillRect(0, 0, width, height);
+    if (this.options?.fill ?? true) {
+      ctx.fillStyle = this.options?.backgroundColor || '#fff';
+      if (this.options?.rounded) {
+        roundRect(
+          ctx,
+          0,
+          0,
+          width,
+          height,
+          this.options?.roundedRadius || 4,
+          true,
+          false,
+        );
+      } else {
+        ctx.fillRect(0, 0, width, height);
+      }
+    }
 
     // Scale the text to fit within the canvas
     const scaleFactor = Math.min(1, width / longestLine);
-    ctx.translate(width / 2 - padding, padding + fontSize / 2);
+    ctx.translate(
+      Math.floor(width / 2 - padding) + 0.5,
+      Math.floor(padding + fontSize / 2) + 0.5,
+    );
     ctx.scale(scaleFactor, 1);
-    ctx.fillStyle = '#000';
+
+    // Draw the text
+
+    if (this.options?.textShadowBlur !== undefined) {
+      ctx.shadowColor = this.options?.textBorderColor || '#000';
+      ctx.shadowBlur = this.options?.textShadowBlur;
+      if (this.options?.textBorderSize !== undefined) {
+        ctx.lineWidth = this.options?.textBorderSize;
+        lines.forEach((line, i) => {
+          ctx.strokeText(line, padding, i * fontSize + padding);
+        });
+      }
+      ctx.shadowBlur = 0;
+    }
+
+    ctx.fillStyle = this.options?.foregroundColor || '#000';
     lines.forEach((line, i) => {
       ctx.fillText(line, padding, i * fontSize + padding);
     });

src/client/object/player-entity.ts

@@ -8,7 +8,10 @@ import {
 import { CanvasUtils } from './canvas-utils';
 import { ChatBubble } from './chat-bubble';
 
-const chatBuilder = new CanvasUtils();
+const chatBuilder = new CanvasUtils({
+  rounded: true,
+  roundedRadius: 8,
+});
 
 export class PlayerEntity extends PonyEntity {
   private _updateQueue: PositionUpdatePacket[] = [];

src/client/object/pony.ts

@@ -5,7 +5,13 @@ import { FullStatePacket } from '../../common/types/packet';
 import { NameTag } from './nametag';
 import { CanvasUtils } from './canvas-utils';
 
-const nameTagBuilder = new CanvasUtils();
+const nameTagBuilder = new CanvasUtils({
+  fill: false,
+  textBorderColor: '#000',
+  foregroundColor: '#fff',
+  textShadowBlur: 2,
+  textBorderSize: 1,
+});
 
 export class PonyEntity {
   public velocity = new THREE.Vector3(0, 0, 0);

src/server/object/game.ts

@@ -110,6 +110,6 @@ export class Game {
         );
       this.io.emit('playerupdate', playerInfo);
       this._changedPlayers.length = 0;
-    }, 10);
+    }, 1000 / 60);
   }
 }