blockbench/js/texturing/texture_generator.js
2020-04-29 23:35:47 +02:00

771 lines
22 KiB
JavaScript

const TextureGenerator = {
background_color: new ColorPicker({
id: 'background_color',
name: 'data.color',
private: true,
}),
face_data: {
up: {c1: '#b4d4e1', c2: '#ecf8fd', place: t => {return {x: t.posx+t.z, y: t.posy, w: t.x, h: t.z}}},
down: {c1: '#536174', c2: '#6e788c', place: t => {return {x: t.posx+t.z+t.x, y: t.posy, w: t.x, h: t.z}}},
east: {c1: '#43e88d', c2: '#7BFFA3', place: t => {return {x: t.posx, y: t.posy+t.z, w: t.z, h: t.y}}},
north: {c1: '#5bbcf4', c2: '#7BD4FF', place: t => {return {x: t.posx+t.z, y: t.posy+t.z, w: t.x, h: t.y}}},
west: {c1: '#f48686', c2: '#FFA7A4', place: t => {return {x: t.posx+t.z+t.x, y: t.posy+t.z, w: t.z, h: t.y}}},
south: {c1: '#f8dd72', c2: '#FFF899', place: t => {return {x: t.posx+t.z+t.x+t.z,y: t.posy+t.z, w: t.x, h: t.y}}},
},
addBitmapDialog() {
var dialog = new Dialog({
id: 'add_bitmap',
title: tl('action.create_texture'),
form: {
name: {label: 'generic.name', value: 'texture'},
folder: {label: 'dialog.create_texture.folder'},
template: {label: 'dialog.create_texture.template', type: 'checkbox', condition: Cube.all.length}
},
onConfirm: function(results) {
results.particle = 'auto';
dialog.hide()
if (results.template) {
var dialog2 = new Dialog({
id: 'texture_template',
title: tl('dialog.create_texture.template'),
form: {
compress: {label: 'dialog.create_texture.compress', type: 'checkbox', value: true, condition: Project.box_uv},
power: {label: 'dialog.create_texture.power', type: 'checkbox', value: true},
double_use: {label: 'dialog.create_texture.double_use', type: 'checkbox', value: true, condition: Project.box_uv},
box_uv: {label: 'dialog.project.box_uv', type: 'checkbox', value: false, condition: !Project.box_uv},
color: {label: 'data.color', type: 'color', colorpicker: TextureGenerator.background_color},
resolution: {label: 'dialog.create_texture.resolution', type: 'select', value: 16, options: {
16: '16',
32: '32',
64: '64',
128: '128',
256: '256',
512: '512',
}},
},
onConfirm: function(results2) {
$.extend(results, results2)
TextureGenerator.addBitmap(results)
dialog2.hide()
}
}).show()
if (TextureGenerator.background_color.get().toHex8() === 'ffffffff') {
TextureGenerator.background_color.set('#00000000')
}
} else {
var dialog2 = new Dialog({
id: 'texture_simple',
title: tl('action.create_texture'),
form: {
color: {label: 'data.color', type: 'color', colorpicker: TextureGenerator.background_color},
resolution: {label: 'dialog.create_texture.resolution', type: 'number', value: 16, min: 16, max: 2048},
},
onConfirm: function(results2) {
$.extend(results, results2)
TextureGenerator.addBitmap(results)
dialog2.hide()
}
}).show()
}
}
}).show()
},
addBitmap(options, after) {
if (typeof options !== 'object') {
options = {}
}
if (isNaN(options.resolution) || !options.resolution) {
options.resolution = 16
}
if (options.color === undefined) {
options.color = new tinycolor().toRgb()
}
if (Format.single_texture) {
options.texture = textures[0]
}
var texture = new Texture({
mode: 'bitmap',
keep_size: true,
res: options.resolution,
name: options.name ? options.name : 'texture',
folder: options.folder ? options.folder : 'block'
})
function makeTexture(dataUrl) {
texture.fromDataURL(dataUrl).add(false)
switch (options.particle) {
case 'auto':
texture.fillParticle();
break;
case true:
texture.enableParticle();
break;
}
if (typeof after === 'function') {
after(texture)
}
if (!options.template) {
Undo.finishEdit('create blank texture', {textures: [texture], bitmap: true})
}
return texture;
}
if (options.template === true) {
Undo.initEdit({
textures: Format.single_texture ? textures : [],
elements: Format.single_texture ? Cube.all : Cube.selected,
uv_only: true,
uv_mode: true
})
if (Project.box_uv || options.box_uv) {
TextureGenerator.generateTemplate(options, makeTexture)
} else {
TextureGenerator.generateFaceTemplate(options, makeTexture)
}
} else {
Undo.initEdit({textures: []})
TextureGenerator.generateBlank(options.resolution, options.resolution, options.color, makeTexture)
}
},
generateBlank(height, width, color, cb) {
var canvas = document.createElement('canvas')
canvas.width = width;
canvas.height = height;
var ctx = canvas.getContext('2d')
ctx.fillStyle = new tinycolor(color).toRgbString()
ctx.fillRect(0, 0, width, height)
cb(canvas.toDataURL())
},
//constructor
boxUVCubeTemplate: function(obj, min_size) {
this.x = obj.size(0, true) || min_size;
this.y = obj.size(1, 'template') || min_size;
this.z = obj.size(2, true) || min_size;
this.posx = obj.uv_offset[0];
this.posy = obj.uv_offset[1];
this.obj = obj;
this.template_size = (obj.size(2, true) + obj.size(1, 'template'))+ (obj.size(2, true) + obj.size(0, true))*2;
this.height = this.z + this.y;
this.width = 2* (this.x + this.z);
return this;
},
//BoxUV Template
generateTemplate(options, cb) {
var res = options.resolution;
var background_color = options.color;
var texture = options.texture;
var min_size = Project.box_uv ? 0 : 1;
var res_multiple = res / 16
var templates = [];
var doubles = {};
var extend_x = 0;
var extend_y = 0;
var avg_size = 0;
var cubes = Format.single_texture ? Cube.all.slice() : Cube.selected.slice()
var i = cubes.length-1
while (i >= 0) {
let obj = cubes[i]
if (obj.visibility === true) {
var template = new TextureGenerator.boxUVCubeTemplate(obj, min_size);
if (options.double_use && Project.box_uv && textures.length) {
var double_key = [...obj.uv_offset, ...obj.size(undefined, true), ].join('_')
if (doubles[double_key]) {
// improve chances that original is not mirrored
if (doubles[double_key][0].obj.mirror_uv && !obj.mirror_uv) {
templates[templates.indexOf(doubles[double_key][0])] = template;
doubles[double_key].splice(0, 0, template)
} else {
doubles[double_key].push(template)
}
doubles[double_key][0].duplicates = doubles[double_key];
i--;
continue;
} else {
doubles[double_key] = [template]
}
}
templates.push(template)
avg_size += templates[templates.length-1].template_size
}
i--;
}
templates.sort(function(a,b) {
return b.template_size - a.template_size;
})
//Cancel if no cubes
if (templates.length == 0) {
Blockbench.showMessage('No valid cubes', 'center')
return;
}
if (options.compress) {
var fill_map = {}
function occupy(x, y) {
if (!fill_map[x]) fill_map[x] = {}
fill_map[x][y] = true
}
function check(x, y) {
return fill_map[x] && fill_map[x][y]
}
function forTemplatePixel(tpl, sx, sy, cb) {
for (var x = 0; x < tpl.width; x++) {
for (var y = 0; y < tpl.height; y++) {
if (y >= tpl.z || (x >= tpl.z && x < (tpl.z + 2*tpl.x))) {
if (cb(sx+x, sy+y)) return;
}
}
}
}
function place(tpl, x, y) {
var works = true;
forTemplatePixel(tpl, x, y, (tx, ty) => {
if (check(tx, ty)) {
works = false;
return true;
}
})
if (works) {
forTemplatePixel(tpl, x, y, occupy)
tpl.posx = x;
tpl.posy = y;
extend_x = Math.max(extend_x, x + tpl.width);
extend_y = Math.max(extend_y, y + tpl.height);
return true;
}
}
templates.forEach(tpl => {
var vert = extend_x > extend_y;
//Scan for empty spot
for (var line = 0; line < 2e3; line++) {
for (var x = 0; x <= line; x++) {
if (place(tpl, x, line)) return;
}
for (var y = 0; y < line; y++) {
if (place(tpl, line, y)) return;
}
}
})
} else {
//OLD -------------------------------------------
var lines = [[]]
var line_length = Math.sqrt(cubes.length/2)
avg_size /= templates.length
var o = 0
var i = 0
var ox = 0
templates.forEach(function(tpl) {
if (ox >= line_length) {
o = ox = 0
i++
lines[i] = []
}
lines[i][o] = tpl
o++;
ox += tpl.template_size/avg_size
})
lines.forEach(function(temps) {
var x_pos = 0
var y_pos = 0 //Y Position of current area relative to this bone
var filled_x_pos = 0;
var max_height = 0
//Find the maximum height of the line
temps.forEach(function(t) {
max_height = Math.max(max_height, t.height)
})
//Place
temps.forEach(function(t) {
if (y_pos > 0 && (y_pos + t.height) <= max_height) {
//same column
t.posx = x_pos
t.posy = y_pos + extend_y
filled_x_pos = Math.max(filled_x_pos, x_pos+t.width)
y_pos += t.height
} else {
//new column
x_pos = filled_x_pos
y_pos = t.height
t.posx = x_pos
t.posy = extend_y
filled_x_pos = Math.max(filled_x_pos, x_pos+t.width)
}
//size of widest bone
extend_x = Math.max(extend_x, filled_x_pos)
})
extend_y += max_height
})
}
var max_size = Math.max(extend_x, extend_y)
if (options.power) {
max_size = Math.getNextPower(max_size, 16);
} else {
max_size = Math.ceil(max_size/16)*16;
}
if (background_color.getAlpha() != 0) {
background_color = background_color.toRgbString()
}
var canvas = document.createElement('canvas')
canvas.width = canvas.height = max_size*res_multiple;
var ctx = canvas.getContext('2d')
ctx.imageSmoothingEnabled = false;
//Drawing
TextureGenerator.changeProjectResolution(max_size, max_size);
templates.forEach(function(t) {
t.obj.uv_offset[0] = t.posx;
t.obj.uv_offset[1] = t.posy;
//if true, dupes must be flipped
let reverse_flip = t.obj.mirror_uv;
t.obj.mirror_uv = false;
if (t.duplicates) {
t.duplicates.forEach(dupl => {
if (dupl.obj !== t.obj) {
dupl.obj.mirror_uv = dupl.obj.mirror_uv !== reverse_flip;
}
})
}
TextureGenerator.paintCubeBoxTemplate(t.obj, texture, canvas, t);
})
var dataUrl = canvas.toDataURL()
var texture = cb(dataUrl)
if (texture && !Project.single_texture) {
cubes.forEach(function(cube) {
cube.applyTexture(texture, true);
cube.autouv = 0;
})
}
if (options.box_uv && !Project.box_uv) {
Project.box_uv = true;
}
updateSelection()
Undo.finishEdit('create template', {
textures: [texture],
bitmap: true,
elements: cubes,
uv_only: true,
uv_mode: true
})
},
boxUVdrawTemplateRectangle(border_color, color, face, coords, texture, canvas) {
if (typeof background_color === 'string') {
border_color = background_color
color = undefined
}
var res_multiple = canvas.width/Project.texture_width;
var ctx = canvas.getContext('2d');
ctx.fillStyle = border_color;
ctx.fillRect(
coords.x*res_multiple,
coords.y*res_multiple,
coords.w*res_multiple,
coords.h*res_multiple
)
if (coords.w*res_multiple > 2 && coords.h*res_multiple > 2) {
if (color == null) {
ctx.clearRect(
coords.x * res_multiple + 1,
coords.y * res_multiple + 1,
coords.w * res_multiple - 2,
coords.h * res_multiple - 2
)
} else if (color) {
ctx.fillStyle = color
ctx.fillRect(
coords.x * res_multiple + 1,
coords.y * res_multiple + 1,
coords.w * res_multiple - 2,
coords.h * res_multiple - 2
)
}
}
},
boxUVdrawTexture(face, coords, texture, canvas) {
if (!Format.single_texture) {
if (face.texture === undefined || face.texture === null) return false;
texture = face.getTexture()
}
if (!texture || !texture.img) return false;
var ctx = canvas.getContext('2d');
var res_multiple = canvas.width/Project.texture_width;
ctx.save()
var uv = face.uv.slice();
if (face.direction === 'up') {
uv = [uv[2], uv[3], uv[0], uv[1]]
} else if (face.direction === 'down') {
uv = [uv[2], uv[1], uv[0], uv[3]]
}
var src = getRectangle(uv[0], uv[1], uv[2], uv[3])
var flip = [
uv[0] > uv[2] ? -1 : 1,
uv[1] > uv[3] ? -1 : 1
]
if (flip[0] + flip[1] < 1) {
ctx.scale(flip[0], flip[1])
}
if (face.rotation) {
ctx.rotate(Math.degToRad(face.rotation))
let rot = face.rotation
if (rot <= 180) flip[1] *= -1;
if (rot >= 180) flip[0] *= -1;
while (rot > 0) {
[coords.x, coords.y] = [coords.y, coords.x];
[coords.w, coords.h] = [coords.h, coords.w];
rot -= 90;
}
}
ctx.drawImage(
texture.img,
src.ax/Project.texture_width * texture.img.naturalWidth,
src.ay/Project.texture_width * texture.img.naturalWidth,
src.x /Project.texture_width * texture.img.naturalWidth,
src.y /Project.texture_width * texture.img.naturalWidth,
coords.x*res_multiple*flip[0],
coords.y*res_multiple*flip[1],
coords.w*res_multiple*flip[0],
coords.h*res_multiple*flip[1]
)
ctx.restore()
return true;
},
paintCubeBoxTemplate(cube, texture, canvas, template, transparent) {
if (!template) {
template = new TextureGenerator.boxUVCubeTemplate(cube, Project.box_uv ? 0 : 1);
}
for (var face in TextureGenerator.face_data) {
let d = TextureGenerator.face_data[face]
if (!cube.faces[face].texture ||
!TextureGenerator.boxUVdrawTexture(cube.faces[face], d.place(template), texture, canvas)
) {
TextureGenerator.boxUVdrawTemplateRectangle(d.c1, transparent ? null : d.c2, cube.faces[face], d.place(template), texture, canvas)
}
}
if (template && template.duplicates) {
template.duplicates.forEach(t_2 => {
t_2.obj.uv_offset[0] = cube.uv_offset[0];
t_2.obj.uv_offset[1] = cube.uv_offset[1];
if (t_2.obj !== cube) {
t_2.obj.mirror_uv = t_2.obj.mirror_uv != cube.mirror_uv;
}
})
}
if (!Project.box_uv) {
var size = cube.size(undefined, true);
size.forEach((n, i) => {
size[i] = n;
})
var face_list = [
{face: 'north', fIndex: 10, from: [size[2], size[2]], size: [size[0], size[1]]},
{face: 'east', fIndex: 0, from: [0, size[2]], size: [size[2], size[1]]},
{face: 'south', fIndex: 8, from: [size[2]*2 + size[0], size[2]], size: [size[0], size[1]]},
{face: 'west', fIndex: 2, from: [size[2] + size[0], size[2]], size: [size[2], size[1]]},
{face: 'up', fIndex: 4, from: [size[2]+size[0], size[2]], size: [-size[0], -size[2]]},
{face: 'down', fIndex: 6, from: [size[2]+size[0]*2, 0], size: [-size[0], size[2]]}
]
face_list.forEach(function(f) {
cube.faces[f.face].uv[0] = (f.from[0] + Math.floor(cube.uv_offset[0]+0.0000001)) / canvas.width * Project.texture_width;
cube.faces[f.face].uv[1] = (f.from[1] + Math.floor(cube.uv_offset[1]+0.0000001)) / canvas.height * Project.texture_height;
cube.faces[f.face].uv[2] = (f.from[0]+f.size[0]+ Math.floor(cube.uv_offset[0]+0.0000001)) / canvas.width * Project.texture_width;
cube.faces[f.face].uv[3] = (f.from[1]+f.size[1]+ Math.floor(cube.uv_offset[1]+0.0000001)) / canvas.height * Project.texture_height;
cube.faces[f.face].rotation = 0;
})
}
},
//Face Template
generateFaceTemplate(options, cb) {
var res_multiple = options.resolution / 16;
var background_color = options.color;
var texture = options.texture;
var face_list = [];
function faceRect(cube, face_key, tex, x, y) {
this.cube = cube;
this.width = Math.abs(x);
this.height = Math.abs(y);
this.width = (this.width >= 0.01 && this.width < 1) ? 1 : Math.round(this.width );
this.height = (this.height >= 0.01 && this.height < 1) ? 1 : Math.round(this.height);
this.size = this.width * this.height;
this.face_key = face_key;
this.texture = tex
this.face = cube.faces[face_key];
face_list.push(this);
}
var cube_array = Format.single_texture ? Cube.all : Cube.selected;
cube_array.forEach(cube => {
var fi = 0;
for (var face_key in cube.faces) {
var face = cube.faces[face_key];
var tex = face.getTexture();
if (tex !== null) {
var x = 0;
var y = 0;
switch (face_key) {
case 'north': x = cube.size(0); y = cube.size(1); break;
case 'east': x = cube.size(2); y = cube.size(1); break;
case 'south': x = cube.size(0); y = cube.size(1); break;
case 'west': x = cube.size(2); y = cube.size(1); break;
case 'up': x = cube.size(0); y = cube.size(2); break;
case 'down': x = cube.size(0); y = cube.size(2); break;
}
new faceRect(cube, face_key, tex, x, y)
}
}
})
if (face_list.length == 0) {
Blockbench.showMessage('No valid cubes', 'center')
return;
}
var extend_x = 0;
var extend_y = 0;
if (true) {
face_list.sort(function(a,b) {
return b.size - a.size;
})
var fill_map = {}
function occupy(x, y) {
if (!fill_map[x]) fill_map[x] = {}
fill_map[x][y] = true
}
function check(x, y) {
return fill_map[x] && fill_map[x][y]
}
function forTemplatePixel(tpl, sx, sy, cb) {
for (var x = 0; x < tpl.width; x++) {
for (var y = 0; y < tpl.height; y++) {
if (cb(sx+x, sy+y)) return;
}
}
}
function place(tpl, x, y) {
var works = true;
forTemplatePixel(tpl, x, y, (tx, ty) => {
if (check(tx, ty)) {
works = false;
return true;
}
})
if (works) {
forTemplatePixel(tpl, x, y, occupy)
tpl.posx = x;
tpl.posy = y;
extend_x = Math.max(extend_x, x + tpl.width);
extend_y = Math.max(extend_y, y + tpl.height);
return true;
}
}
face_list.forEach(tpl => {
var vert = extend_x > extend_y;
//Scan for empty spot
for (var line = 0; line < 2e3; line++) {
for (var x = 0; x <= line; x++) {
if (place(tpl, x, line)) return;
}
for (var y = 0; y < line; y++) {
if (place(tpl, line, y)) return;
}
}
})
}
var max_size = Math.max(extend_x*res_multiple, extend_y*res_multiple)
if (options.power) {
max_size = Math.getNextPower(max_size, 16);
} else {
max_size = Math.ceil(max_size/16)*16;
}
if (background_color.getAlpha() != 0) {
background_color = background_color.toRgbString()
}
var canvas = document.createElement('canvas')
canvas.width = canvas.height = max_size;
var ctx = canvas.getContext('2d')
ctx.imageSmoothingEnabled = false;
function drawTemplateRectangle(border_color, color, face, coords) {
if (typeof background_color === 'string') {
border_color = background_color
color = undefined
}
ctx.fillStyle = border_color
ctx.fillRect(
coords.x*res_multiple,
coords.y*res_multiple,
coords.w*res_multiple,
coords.h*res_multiple
)
if (coords.w*res_multiple > 2 && coords.h*res_multiple > 2 && color) {
ctx.fillStyle = color
ctx.fillRect(
coords.x * res_multiple + 1,
coords.y * res_multiple + 1,
coords.w * res_multiple - 2,
coords.h * res_multiple - 2
)
}
}
function drawTexture(face, coords) {
if (!Format.single_texture) {
if (face.texture === undefined || face.texture === null) return false;
texture = face.getTexture()
} else {
texture = textures[0];
}
if (!texture || !texture.img) return false;
ctx.save()
var uv = face.uv.slice();
if (face.direction === 'up') {
uv = [uv[2], uv[3], uv[0], uv[1]]
} else if (face.direction === 'down') {
uv = [uv[2], uv[1], uv[0], uv[3]]
}
var src = getRectangle(uv[0], uv[1], uv[2], uv[3])
var flip = [
uv[0] > uv[2] ? -1 : 1,
uv[1] > uv[3] ? -1 : 1
]
if (flip[0] + flip[1] < 1) {
ctx.scale(flip[0], flip[1])
}
if (face.rotation) {
ctx.rotate(Math.degToRad(face.rotation))
let rot = face.rotation
if (rot <= 180) flip[1] *= -1;
if (rot >= 180) flip[0] *= -1;
while (rot > 0) {
[coords.x, coords.y] = [coords.y, coords.x];
[coords.w, coords.h] = [coords.h, coords.w];
rot -= 90;
}
}
ctx.drawImage(
texture.img,
src.ax/Project.texture_width * texture.img.naturalWidth,
src.ay/Project.texture_height * texture.img.naturalHeight,
src.x /Project.texture_width * texture.img.naturalWidth,
src.y /Project.texture_height * texture.img.naturalHeight,
coords.x*res_multiple*flip[0],
coords.y*res_multiple*flip[1],
coords.w*res_multiple*flip[0],
coords.h*res_multiple*flip[1]
)
ctx.restore()
return true;
}
//Drawing
face_list.forEach(function(ftemp) {
let cube = ftemp.cube
var pos = {
x: ftemp.posx,
y: ftemp.posy,
w: ftemp.width,
h: ftemp.height
}
var d = TextureGenerator.face_data[ftemp.face_key];
var flip_rotation = false
if (!ftemp.texture ||
!drawTexture(ftemp.face, pos)
) {
drawTemplateRectangle(d.c1, d.c2, ftemp.face, pos)
} else {
flip_rotation = ftemp.face.rotation % 180 != 0;
}
ftemp.face.extend({
rotation: 0,
uv: flip_rotation ? [pos.y, pos.x] : [pos.x, pos.y]
})
ftemp.face.uv_size = flip_rotation ? [pos.h, pos.w] : [pos.w, pos.h];
if (ftemp.face_key == 'up') {
[ftemp.face.uv[2], ftemp.face.uv[0]] = [ftemp.face.uv[0], ftemp.face.uv[2]];
[ftemp.face.uv[3], ftemp.face.uv[1]] = [ftemp.face.uv[1], ftemp.face.uv[3]];
}
if (ftemp.face_key == 'down') {
[ftemp.face.uv[2], ftemp.face.uv[0]] = [ftemp.face.uv[0], ftemp.face.uv[2]];
}
})
var dataUrl = canvas.toDataURL()
var texture = cb(dataUrl)
TextureGenerator.changeProjectResolution(max_size / res_multiple, max_size / res_multiple);
if (texture && !Format.single_texture) {
cube_array.forEach(function(cube) {
for (var key in cube.faces) {
if (cube.faces[key].texture !== null) {
cube.faces[key].texture = texture.uuid;
}
}
Canvas.adaptObjectFaces(cube)
Canvas.updateUV(cube)
cube.autouv = 0
})
}
updateSelection()
Undo.finishEdit('create template', {
textures: [texture],
bitmap: true,
elements: cube_array,
uv_only: true,
uv_mode: true
})
},
//Misc
changeProjectResolution(width, height) {
let factor_x = width / Project.texture_width;
let factor_y = height / Project.texture_height;
Project.texture_width = width;
Project.texture_height = height;
if (!Project.box_uv && !Format.single_texture) {
Cube.all.forEach(cube => {
if (cube.selected) return;
for (var key in cube.faces) {
let face = cube.faces[key];
if (face.texture) {
face.uv[0] *= factor_x
face.uv[1] *= factor_y;
face.uv[2] *= factor_x;
face.uv[3] *= factor_y;
}
}
Canvas.updateUV(cube)
})
}
}
}