Method process

packages/particle/src/systems/ClickFxSystem.ts:107–143

(entities: readonly Entity[])

    }

    protected override process(entities: readonly Entity[]): void {
        // 处理延迟销毁 | Process delayed destruction
        if (this._entitiesToDestroy.length > 0 && this.scene) {
            this.scene.destroyEntities(this._entitiesToDestroy);
            this._entitiesToDestroy = [];
        }

        for (const entity of entities) {
            const clickFx = entity.getComponent(ClickFxComponent);
            if (!clickFx || !clickFx.fxEnabled) continue;

            // 清理过期的特效 | Clean up expired effects
            this._cleanupExpiredEffects(clickFx);

            // 检查触发条件 | Check trigger conditions
            const triggered = this._checkTrigger(clickFx);
            if (!triggered) continue;

            // 检查是否可以添加新特效 | Check if can add new effect
            if (!clickFx.canAddEffect()) continue;

            // 获取点击/触摸位置 | Get click/touch position
            const screenPos = this._getInputPosition(clickFx);
            if (!screenPos) continue;

            // 转换为 canvas 相对坐标 | Convert to canvas-relative coordinates
            const canvasPos = this._windowToCanvas(screenPos.x, screenPos.y);

            // 应用偏移 | Apply offset
            canvasPos.x += clickFx.positionOffset.x;
            canvasPos.y += clickFx.positionOffset.y;

            // 创建粒子效果（使用屏幕空间坐标）
            // Create particle effect (using screen space coordinates)
            this._spawnEffect(clickFx, canvasPos.x, canvasPos.y);
        }
    }

    /**
     * 窗口坐标转 canvas 相对坐标