Платформа ЦРНП "Мирокод" для разработки проектов
https://git.mirocod.ru
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717 lines
10 KiB
717 lines
10 KiB
// Copyright 2021 The Gitea Authors. All rights reserved. |
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// Use of this source code is governed by a MIT-style |
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// license that can be found in the LICENSE file. |
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// Copied and modified from https://github.com/issue9/identicon/ (MIT License) |
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package identicon |
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import "image" |
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var ( |
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// the blocks can appear in center, these blocks can be more beautiful |
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centerBlocks = []blockFunc{b0, b1, b2, b3, b19, b26, b27} |
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// all blocks |
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blocks = []blockFunc{b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11, b12, b13, b14, b15, b16, b17, b18, b19, b20, b21, b22, b23, b24, b25, b26, b27} |
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) |
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type blockFunc func(img *image.Paletted, x, y, size, angle int) |
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// draw a polygon by points, and the polygon is rotated by angle. |
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func drawBlock(img *image.Paletted, x, y, size, angle int, points []int) { |
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if angle != 0 { |
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m := size / 2 |
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rotate(points, m, m, angle) |
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} |
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for i := 0; i < size; i++ { |
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for j := 0; j < size; j++ { |
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if pointInPolygon(i, j, points) { |
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img.SetColorIndex(x+i, y+j, 1) |
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} |
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} |
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} |
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} |
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// blank |
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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, angle int) {} |
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// full-filled |
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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, angle int) { |
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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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img.SetColorIndex(i, j, 1) |
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} |
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} |
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} |
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// a small block |
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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, angle int) { |
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l := size / 4 |
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x += l |
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y += l |
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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(i, j, 1) |
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} |
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} |
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} |
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// diamond |
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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, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, 0, []int{ |
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m, 0, |
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size, m, |
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m, size, |
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0, m, |
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m, 0, |
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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, angle int) { |
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drawBlock(img, x, y, size, angle, []int{ |
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0, 0, |
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size, 0, |
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0, size, |
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0, 0, |
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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, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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m, 0, |
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size, size, |
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0, size, |
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m, 0, |
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}) |
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} |
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// b6 |
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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, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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0, 0, |
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m, 0, |
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m, size, |
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0, size, |
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0, 0, |
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}) |
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} |
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// b7 italic cone |
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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, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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0, 0, |
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size, m, |
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size, size, |
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m, size, |
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0, 0, |
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}) |
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} |
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// b8 three small triangles |
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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, angle int) { |
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m := size / 2 |
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mm := m / 2 |
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// top |
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drawBlock(img, x, y, size, angle, []int{ |
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m, 0, |
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3 * mm, m, |
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mm, m, |
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m, 0, |
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}) |
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// bottom left |
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drawBlock(img, x, y, size, angle, []int{ |
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mm, m, |
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m, size, |
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0, size, |
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mm, m, |
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}) |
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// bottom right |
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drawBlock(img, x, y, size, angle, []int{ |
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3 * mm, m, |
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size, size, |
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m, size, |
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3 * mm, m, |
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}) |
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} |
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// b9 italic triangle |
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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, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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0, 0, |
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size, m, |
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m, size, |
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0, 0, |
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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, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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m, 0, |
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size, 0, |
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m, m, |
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m, 0, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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0, m, |
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m, m, |
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0, size, |
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0, m, |
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}) |
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} |
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// b11 |
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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, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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0, 0, |
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m, 0, |
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m, m, |
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0, m, |
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0, 0, |
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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, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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0, m, |
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size, m, |
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m, size, |
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0, m, |
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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, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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m, m, |
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size, size, |
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0, size, |
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m, m, |
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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, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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m, 0, |
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m, m, |
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0, m, |
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m, 0, |
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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, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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0, 0, |
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m, 0, |
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0, m, |
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0, 0, |
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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, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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m, 0, |
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size, m, |
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0, m, |
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m, 0, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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m, m, |
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size, size, |
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0, size, |
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m, m, |
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}) |
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} |
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// b17 |
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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 b17(img *image.Paletted, x, y, size, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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0, 0, |
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m, 0, |
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0, m, |
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0, 0, |
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}) |
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quarter := size / 4 |
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drawBlock(img, x, y, size, angle, []int{ |
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size - quarter, size - quarter, |
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size, size - quarter, |
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size, size, |
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size - quarter, size, |
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size - quarter, size - quarter, |
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}) |
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} |
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// b18 |
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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 b18(img *image.Paletted, x, y, size, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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0, 0, |
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m, 0, |
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0, size, |
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0, 0, |
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}) |
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} |
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// b19 |
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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 b19(img *image.Paletted, x, y, size, angle int) { |
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m := size / 2 |
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drawBlock(img, x, y, size, angle, []int{ |
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0, 0, |
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m, 0, |
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0, m, |
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0, 0, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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m, 0, |
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size, 0, |
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size, m, |
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m, 0, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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size, m, |
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size, size, |
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m, size, |
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size, m, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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0, m, |
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m, size, |
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0, size, |
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0, m, |
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}) |
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} |
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// b20 |
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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 b20(img *image.Paletted, x, y, size, angle int) { |
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m := size / 2 |
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q := size / 4 |
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drawBlock(img, x, y, size, angle, []int{ |
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q, 0, |
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0, size, |
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0, m, |
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q, 0, |
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}) |
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} |
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// b21 |
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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 b21(img *image.Paletted, x, y, size, angle int) { |
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m := size / 2 |
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q := size / 4 |
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drawBlock(img, x, y, size, angle, []int{ |
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q, 0, |
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0, size, |
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0, m, |
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q, 0, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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q, 0, |
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size, q, |
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size, m, |
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q, 0, |
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}) |
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} |
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// b22 |
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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 b22(img *image.Paletted, x, y, size, angle int) { |
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m := size / 2 |
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q := size / 4 |
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drawBlock(img, x, y, size, angle, []int{ |
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q, 0, |
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0, size, |
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0, m, |
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q, 0, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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q, 0, |
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size, q, |
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size, size, |
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q, 0, |
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}) |
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} |
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// b23 |
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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 b23(img *image.Paletted, x, y, size, angle int) { |
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m := size / 2 |
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q := size / 4 |
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drawBlock(img, x, y, size, angle, []int{ |
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q, 0, |
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0, size, |
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0, m, |
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q, 0, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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q, 0, |
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size, 0, |
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size, q, |
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q, 0, |
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}) |
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} |
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// b24 |
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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 b24(img *image.Paletted, x, y, size, angle int) { |
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m := size / 2 |
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q := size / 4 |
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drawBlock(img, x, y, size, angle, []int{ |
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q, 0, |
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0, size, |
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0, m, |
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q, 0, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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m, 0, |
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size, 0, |
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m, size, |
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m, 0, |
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}) |
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} |
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// b25 |
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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 b25(img *image.Paletted, x, y, size, angle int) { |
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m := size / 2 |
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q := size / 4 |
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drawBlock(img, x, y, size, angle, []int{ |
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0, 0, |
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0, size, |
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q, size, |
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0, 0, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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0, m, |
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size, 0, |
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q, size, |
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0, m, |
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}) |
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} |
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// b26 |
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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 b26(img *image.Paletted, x, y, size, angle int) { |
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m := size / 2 |
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q := size / 4 |
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drawBlock(img, x, y, size, angle, []int{ |
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0, 0, |
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m, q, |
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q, m, |
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0, 0, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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size, 0, |
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m + q, m, |
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m, q, |
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size, 0, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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size, size, |
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m, m + q, |
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q + m, m, |
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size, size, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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0, size, |
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q, m, |
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m, q + m, |
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0, size, |
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}) |
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} |
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// b27 |
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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 b27(img *image.Paletted, x, y, size, angle int) { |
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m := size / 2 |
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q := size / 4 |
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drawBlock(img, x, y, size, angle, []int{ |
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0, 0, |
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size, 0, |
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0, q, |
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0, 0, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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q + m, 0, |
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size, 0, |
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size, size, |
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q + m, 0, |
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}) |
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drawBlock(img, x, y, size, angle, []int{ |
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size, q + m, |
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size, size, |
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0, size, |
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size, q + m, |
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}) |
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|
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drawBlock(img, x, y, size, angle, []int{ |
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0, size, |
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0, 0, |
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q, size, |
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0, size, |
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}) |
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}
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