hjm1fb

import taichi as ti
ti.init(arch=ti.gpu)

n = 640
pixels = ti.field(dtype=float, shape=(n, n))


@ti.func
def complex_sqr(z):
    return ti.Vector([z[0]**2 - z[1]**2, z[1] * z[0] * 2])

hjm1fb

常用关系运算符优化
//relation operator
vec4 when_eq(vec4 x, vec4 y) {
    return 1.0 - abs(step(x - y));
}

vec4 when_neq(vec4 x, vec4 y) {
    return abs(step(x - y));
}

hjm1fb

/*
** Copyright (c) 2012, Romain Dura romain@shazbits.com
** 
** Permission to use, copy, modify, and/or distribute this software for any 
** purpose with or without fee is hereby granted, provided that the above 
** copyright notice and this permission notice appear in all copies.
** 
** THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 
** WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 
** MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 

hjm1fb

#ImageView 宽度固定, 自动resize高度
    <ImageView
        android:layout_alignParentBottom="true"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:src="@drawable/banner"
        android:scaleType="fitCenter"
        android:adjustViewBounds="true"
        />

hjm1fb

/**
 *  融合List
 *  @reduce 自定义需要相同元素时如何融合,
 *  element为最先出现的元素，attach为后面出现的元素，element会被保存，attach会被舍弃
 *
 */
fun <E> List<E>.selefMergeReduce(reduce: (element:E, attach: E) -> Unit): List<E> {
    val result = mutableListOf<E>()
    for (element in this){
        if (!result.contains(element)){