Refactor 2d assembler

[dumganhar]

Re: #

Changelog

---

Continuous Integration

This pull request:

• needs automatic test cases check.

  Manual trigger with @cocos-robot run test cases afterward.

• does not change any runtime related code or build configuration

  If any reviewer thinks the CI checks are needed, please uncheck this option, then close and reopen the issue.

---

Compatibility Check

This pull request:

• changes public API, and have ensured backward compatibility with deprecated features.
• affects platform compatibility, e.g. system version, browser version, platform sdk version, platform toolchain, language version, hardware compatibility etc.
• affects file structure of the build package or build configuration which requires user project upgrade.
• introduces breaking changes, please list all changes, affected features and the scope of violation.

[github-actions]

👍 Package size ⤵ -190 bytes, old: 5225108, new: 5224918

Interface Check Report

! WARNING this pull request has changed these public interfaces:

@@ -3576,9 +3576,16 @@
     /**
      * @internal
      */
     export interface IAssembler {
-        [key: string]: any;
+        createData?(comp: UIRenderer): BaseRenderData;
+        fillBuffers?(comp: UIRenderer, renderer: __private._cocos_2d_renderer_i_batcher__IBatcher): void;
+        updateUVs?(comp: UIRenderer, ...args: any[]): void;
+        updateColor?(comp: UIRenderer): void;
+        updateRenderData?(comp: UIRenderer): void;
+        update?(comp: UIRenderer, dt: number): void;
+        resetAssemblerData?(data: any): void;
+        removeData?(data: BaseRenderData): void;
     }
     /**
      * @internal
      */
@@ -46318,9 +46325,9 @@
      * is vertically aligned along the streak segment.
      * @zh 运动轨迹，用于游戏对象的运动轨迹上实现拖尾渐隐效果。
      */
     export class MotionStreak extends UIRenderer {
-        static Point: typeof __private._cocos_particle_2d_motion_streak_2d__Point;
+        static Point: typeof __private._cocos_particle_2d_motion_streak_2d__MotionStreakPoint;
         constructor();
         /**
          * @en Preview the trailing effect in editor mode.
          * @zh 在编辑器模式下预览拖尾效果。
@@ -46366,9 +46373,9 @@
          * motionStreak.fastMode = true;
          */
         get fastMode(): boolean;
         set fastMode(val: boolean);
-        get points(): __private._cocos_particle_2d_motion_streak_2d__Point[];
+        get points(): __private._cocos_particle_2d_motion_streak_2d__MotionStreakPoint[];
         onEnable(): void;
         protected _flushAssembler(): void;
         onFocusInEditor(): void;
         onLostFocusInEditor(): void;
@@ -46379,9 +46386,9 @@
          * // Remove all living segments of the ribbon.
          * myMotionStreak.reset();
          */
         reset(): void;
-        lateUpdate(dt: any): void;
+        lateUpdate(dt: number): void;
         /**
          * @deprecated since v3.5.0, this is an engine private interface that will be removed in the future.
          */
         _render(render: __private._cocos_2d_renderer_i_batcher__IBatcher): void;
@@ -68255,9 +68262,9 @@
             step(dt: number): void;
             requestData(vertexCount: number, indexCount: number): void;
             initDrawInfo(): void;
         }
-        export class _cocos_particle_2d_motion_streak_2d__Point {
+        export class _cocos_particle_2d_motion_streak_2d__MotionStreakPoint {
             point: math.Vec2;
             dir: math.Vec2;
             distance: number;
             time: number;

[dumganhar]

@cocos-robot run test cases

[dumganhar]

@cocos-robot run test cases