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@@ -1,405 +0,0 @@
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-// Copyright 2015 by caixw, All rights reserved
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-// Use of this source code is governed by a MIT
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-// license that can be found in the LICENSE file.
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-
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-package identicon
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-
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-import (
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- "image"
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-)
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-
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-var (
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- // 可以出现在中间的方块,一般为了美观,都是对称图像。
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- centerBlocks = []blockFunc{b0, b1, b2, b3}
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-
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- // 所有方块
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- blocks = []blockFunc{b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11, b12, b13, b14, b15, b16}
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-)
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-
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-// 所有block函数的类型
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-type blockFunc func(img *image.Paletted, x, y, size float64, angle int)
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-
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-// 将多边形points旋转angle个角度,然后输出到img上,起点为x,y坐标
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-func drawBlock(img *image.Paletted, x, y, size float64, angle int, points []float64) {
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- if angle > 0 { // 0角度不需要转换
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- // 中心坐标与x,y的距离,方便下面指定中心坐标(x+m,y+m),
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- // 0.5的偏移值不能少,否则坐靠右,非正中央
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- m := size/2 - 0.5
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- rotate(points, x+m, y+m, angle)
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- }
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-
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- for i := x; i < x+size; i++ {
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- for j := y; j < y+size; j++ {
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- if pointInPolygon(i, j, points) {
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- img.SetColorIndex(int(i), int(j), 1)
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- }
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- }
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- }
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-}
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-
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-// 全空白
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-//
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-// --------
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-// | |
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-// | |
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-// | |
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-// --------
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-func b0(img *image.Paletted, x, y, size float64, angle int) {
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-}
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-
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-// 全填充正方形
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-//
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-// --------
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-// |######|
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-// |######|
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-// |######|
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-// --------
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-func b1(img *image.Paletted, x, y, size float64, angle int) {
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- isize := int(size)
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- ix := int(x)
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- iy := int(y)
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- for i := ix + 1; i < ix+isize; i++ {
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- for j := iy + 1; j < iy+isize; j++ {
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- img.SetColorIndex(i, j, 1)
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- }
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- }
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-}
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-
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-// 中间小方块
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-// ----------
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-// | |
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-// | #### |
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-// | #### |
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-// | |
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-// ----------
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-func b2(img *image.Paletted, x, y, size float64, angle int) {
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- l := size / 4
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- x = x + l
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- y = y + l
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-
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- for i := x; i < x+2*l; i++ {
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- for j := y; j < y+2*l; j++ {
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- img.SetColorIndex(int(i), int(j), 1)
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- }
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- }
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-}
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-
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-// 菱形
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-//
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-// ---------
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-// | # |
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-// | ### |
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-// | ##### |
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-// |#######|
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-// | ##### |
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-// | ### |
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-// | # |
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-// ---------
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-func b3(img *image.Paletted, x, y, size float64, angle int) {
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- m := size / 2
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- points := []float64{}
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-
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- drawBlock(img, x, y, size, 0, append(points,
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- x+m, y,
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- x+size, y+m,
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- x+m, y+size,
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- x, y+m,
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- x+m, y,
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- ))
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-}
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-
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-// b4
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-//
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-// -------
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-// |#####|
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-// |#### |
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-// |### |
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-// |## |
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-// |# |
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-// |------
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-func b4(img *image.Paletted, x, y, size float64, angle int) {
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- points := []float64{}
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- drawBlock(img, x, y, size, angle, append(points,
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- x, y,
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- x+size, y,
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- x, y+size,
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- x, y,
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- ))
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-}
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-
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-// b5
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-//
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-// ---------
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-// | # |
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-// | ### |
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-// | ##### |
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-// |#######|
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-func b5(img *image.Paletted, x, y, size float64, angle int) {
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- points := []float64{}
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- m := size / 2
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- drawBlock(img, x, y, size, angle, append(points,
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- x+m, y,
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- x+size,
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- y+size,
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- x, y+size,
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- x+m, y,
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- ))
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-}
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-
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-// b6 矩形
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-//
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-// --------
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-// |### |
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-// |### |
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-// |### |
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-// --------
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-func b6(img *image.Paletted, x, y, size float64, angle int) {
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- points := []float64{}
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- m := size / 2
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- drawBlock(img, x, y, size, angle, append(points,
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- x, y,
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- x+m, y,
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- x+m, y+size,
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- x, y+size,
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- x, y,
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- ))
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-}
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-
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-// b7 斜放的锥形
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-//
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-// ---------
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-// | # |
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-// | ## |
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-// | #####|
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-// | ####|
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-// |--------
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-func b7(img *image.Paletted, x, y, size float64, angle int) {
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- points := []float64{}
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- m := size / 2
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- drawBlock(img, x, y, size, angle, append(points,
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- x, y,
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- x+size, y+m,
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- x+size, y+size,
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- x+m, y+size,
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- x, y,
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- ))
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-}
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-
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-// b8 三个堆叠的三角形
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-//
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-// -----------
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-// | # |
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-// | ### |
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-// | ##### |
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-// | # # |
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-// | ### ### |
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-// |#########|
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-// -----------
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-func b8(img *image.Paletted, x, y, size float64, angle int) {
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- points := []float64{}
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- m := size / 2
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- mm := m / 2
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-
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- // 顶部三角形
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- drawBlock(img, x, y, size, angle, append(points,
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- x+m, y,
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- x+3*mm, y+m,
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- x+mm, y+m,
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- x+m, y,
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- ))
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-
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- // 底下左边
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- drawBlock(img, x, y, size, angle, append(points[:0],
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- x+mm, y+m,
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- x+m, y+size,
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- x, y+size,
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- x+mm, y+m,
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- ))
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-
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- // 底下右边
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- drawBlock(img, x, y, size, angle, append(points[:0],
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- x+3*mm, y+m,
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- x+size, y+size,
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- x+m, y+size,
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- x+3*mm, y+m,
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- ))
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-}
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-
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-// b9 斜靠的三角形
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-//
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-// ---------
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-// |# |
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-// | #### |
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-// | #####|
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-// | #### |
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-// | # |
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-// ---------
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-func b9(img *image.Paletted, x, y, size float64, angle int) {
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- points := []float64{}
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- m := size / 2
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- drawBlock(img, x, y, size, angle, append(points,
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- x, y,
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- x+size, y+m,
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- x+m, y+size,
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- x, y,
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- ))
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-}
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-
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-// b10
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-//
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-// ----------
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-// | ####|
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-// | ### |
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-// | ## |
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-// | # |
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-// |#### |
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-// |### |
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-// |## |
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-// |# |
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-// ----------
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-func b10(img *image.Paletted, x, y, size float64, angle int) {
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- points := []float64{}
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- m := size / 2
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- drawBlock(img, x, y, size, angle, append(points,
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- x+m, y,
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- x+size, y,
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- x+m, y+m,
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- x+m, y,
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- ))
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-
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- drawBlock(img, x, y, size, angle, append(points[:0],
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- x, y+m,
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- x+m, y+m,
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- x, y+size,
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- x, y+m,
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- ))
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-}
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-
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-// b11 左上角1/4大小的方块
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-//
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-// ----------
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-// |#### |
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-// |#### |
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-// |#### |
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-// | |
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-// | |
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-// ----------
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-func b11(img *image.Paletted, x, y, size float64, angle int) {
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- points := []float64{}
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- m := size / 2
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- drawBlock(img, x, y, size, angle, append(points,
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- x, y,
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- x+m, y,
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- x+m, y+m,
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- x, y+m,
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- x, y,
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- ))
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-}
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-
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-// b12
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-//
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-// -----------
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-// | |
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-// | |
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-// |#########|
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-// | ##### |
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-// | # |
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-// -----------
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-func b12(img *image.Paletted, x, y, size float64, angle int) {
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- points := []float64{}
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- m := size / 2
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- drawBlock(img, x, y, size, angle, append(points,
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- x, y+m,
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- x+size, y+m,
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- x+m, y+size,
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- x, y+m,
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- ))
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-}
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-
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-// b13
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-//
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-// -----------
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-// | |
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-// | |
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-// | # |
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-// | ##### |
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-// |#########|
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-// -----------
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-func b13(img *image.Paletted, x, y, size float64, angle int) {
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- points := []float64{}
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- m := size / 2
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- drawBlock(img, x, y, size, angle, append(points,
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- x+m, y+m,
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- x+size, y+size,
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- x, y+size,
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- x+m, y+m,
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- ))
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-}
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-
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-// b14
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-//
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-// ---------
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-// | # |
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-// | ### |
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-// |#### |
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-// | |
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-// | |
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-// ---------
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-func b14(img *image.Paletted, x, y, size float64, angle int) {
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- points := []float64{}
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- m := size / 2
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- drawBlock(img, x, y, size, angle, append(points,
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- x+m, y,
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- x+m, y+m,
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- x, y+m,
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- x+m, y,
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- ))
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-}
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-
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-// b15
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-//
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-// ----------
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-// |##### |
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-// |### |
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-// |# |
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-// | |
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-// | |
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-// ----------
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-func b15(img *image.Paletted, x, y, size float64, angle int) {
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- points := []float64{}
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- m := size / 2
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- drawBlock(img, x, y, size, angle, append(points,
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- x, y,
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- x+m, y,
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- x, y+m,
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- x, y,
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- ))
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-}
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-
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-// b16
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-//
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-// ---------
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-// | # |
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-// | ##### |
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-// |#######|
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-// | # |
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-// | ##### |
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-// |#######|
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-// ---------
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-func b16(img *image.Paletted, x, y, size float64, angle int) {
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- points := []float64{}
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- m := size / 2
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- drawBlock(img, x, y, size, angle, append(points,
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- x+m, y,
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- x+size, y+m,
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- x, y+m,
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- x+m, y,
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- ))
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-
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- drawBlock(img, x, y, size, angle, append(points[:0],
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- x+m, y+m,
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- x+size, y+size,
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- x, y+size,
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- x+m, y+m,
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- ))
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-}
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