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horizontal symmetry brush + symmetry settings

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This commit is contained in:
Marco Marinò 2022-01-28 19:05:17 +01:00
parent 2b08f2b1b1
commit 43df37dc81
13 changed files with 203 additions and 715 deletions
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5
css/_canvas.scss
View File

@ -42,6 +42,11 @@
background: transparent;
}
#horizontal-symmetric {
z-index: 6001;
background: transparent;
}
#tmp-canvas {
z-index: 5;
background: transparent;

2
js/File.js
View File

@ -10,6 +10,7 @@ class File {
VFXLayer = undefined;
TMPLayer = undefined;
pixelGrid = undefined;
hSymmetricLayer = undefined;
checkerBoard = undefined
// Canvas resize attributes
@ -162,6 +163,7 @@ class File {
// Regenerate the checkerboard
currFile.checkerBoard.fillCheckerboard();
currFile.pixelGrid.fillPixelGrid();
currFile.hSymmetricLayer.fillAxis();
// Put the imageDatas in the right position
switch (this.rcPivot)
{

6
js/Settings.js
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@ -23,7 +23,8 @@ const Settings = (() => {
enableEyedropperPreview: true, //unused - performance
numberOfHistoryStates: 256,
maxColorsOnImportedImage: 128,
pixelGridColour: '#000000'
pixelGridColour: '#000000',
hAxisGridColour: '#FF0000'
};
}
else{
@ -44,8 +45,11 @@ const Settings = (() => {
//save new settings to settings object
settings.numberOfHistoryStates = Util.getValue('setting-numberOfHistoryStates');
settings.pixelGridColour = Util.getValue('setting-pixelGridColour');
settings.hAxisGridColour = Util.getValue('setting-hSymmetryColor');
// Filling pixel grid again if colour changed
Events.emit("refreshPixelGrid");
// Filling symmetric axes again if colour changed
Events.emit("refreshHorizontalAxis");
//save settings object to cookie
let cookieValue = JSON.stringify(settings);

10
js/Startup.js
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@ -86,6 +86,7 @@ const Startup = (() => {
Layer.unusedIDs.push(currentEntry.id);
// Removing the entry from the menu
currentEntry.remove();
}
}
@ -107,10 +108,8 @@ const Startup = (() => {
currFile.pixelGrid = new PixelGrid(width, height, "pixel-grid");
// Horizontal symmetric layer
let hSymmetricLayer = new Layer(width, height, SymmetryModule.hSymmetricCanvas);
// Vertical symmetric layer
let vSymmetricLayer = new Layer(width, height, SymmetryModule.vSymmetricCanvas);
SymmetryModule.initSymmetricCanvas();
console.log("CREATING HSymmetryAxis");
currFile.hSymmetricLayer = new HSymmetryLayer(width, height, "horizontal-symmetric");
// Creating the vfx layer on top of everything
currFile.VFXLayer = new Layer(width, height, 'vfx-canvas');
@ -123,9 +122,8 @@ const Startup = (() => {
currFile.layers.push(currFile.currentLayer);
currFile.layers.push(currFile.TMPLayer);
currFile.layers.push(currFile.pixelGrid);
currFile.layers.push(currFile.hSymmetricLayer);
currFile.layers.push(currFile.VFXLayer);
currFile.layers.push(hSymmetricLayer);
currFile.layers.push(vSymmetricLayer);
}
}

82
js/layers/HSymmetryLayer.js Normal file
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@ -0,0 +1,82 @@
class HSymmetryLayer extends Layer {
// symmetry line color
axisColor = "#FF0000";
// is hidden && enabled
isEnabled = false;
// Distance between one line and another in HTML pixels
lineDistance = 10;
constructor(width, height, canvas, menuEntry) {
super(width, height, canvas, menuEntry);
this.initialize();
Events.onCustom("refreshHorizontalAxis", this.fillAxis.bind(this));
}
initialize() {
super.initialize();
this.fillAxis();
}
// Enable or not
disableAxis() {
// get toggle h axis button
let toggleButton = document.getElementById("toggle-h-symmetry-button");
toggleButton.innerHTML = "Show Horizontal Symmetry";
this.isEnabled = false;
this.canvas.style.display = "none";
}
enableAxis() {
// get toggle h axis button
let toggleButton = document.getElementById("toggle-h-symmetry-button");
toggleButton.innerHTML = "Hide Horizontal Symmetry";
this.isEnabled = true;
this.canvas.style.display = "inline-block";
}
repaint(factor) {
this.lineDistance += factor;
this.fillAxis();
}
/**
* Shows or hides axis depending on its current visibility
* (triggered by the show h symmetry button in the top menu)
*/
toggleHAxis() {
console.log("toggleHAxis");
if (this.isEnabled) {
this.disableAxis();
} else {
this.enableAxis();
}
}
/**
* It fills the canvas
*/
fillAxis() {
let originalSize = currFile.canvasSize;
this.canvas.width = originalSize[0] * Math.round(this.lineDistance);
this.canvas.height = originalSize[1] * Math.round(this.lineDistance);
this.context.strokeStyle = Settings.getCurrSettings().hAxisGridColour;
// Draw horizontal axis
this.drawHAxis();
if (!this.isEnabled) {
this.canvas.style.display = 'none';
}
}
drawHAxis() {
// Get middle y
let midY = Math.round(this.canvas.height / 2);
this.context.beginPath();
this.context.moveTo(0, midY);
this.context.lineTo(this.canvas.width, midY);
this.context.stroke();
this.context.closePath();
}
}

2
js/layers/PixelGrid.js
View File

@ -52,7 +52,7 @@ class PixelGrid extends Layer {
this.fillPixelGrid();
}
/** Shows or hides the pixel grid depening on its current visibility
/** Shows or hides the pixel grid depending on its current visibility
* (triggered by the show pixel grid button in the top menu)
*
*/

701
js/layers/SymmetryModule.js
View File

@ -1,701 +0,0 @@
/**
* SymmetryModule holds the functions used to implement symmetry options.
*/
const SymmetryModule = (() => {
// Saving the canvas containing the horizontal symmetric line
const hSymmetricCanvas = document.getElementById("horizontal-symmetric");
// Saving the canvas containing the vertical symmetric line
const vSymmetricCanvas = document.getElementById("vertical-symmetric");
// Binding events to callbacks
document.getElementById('toggle-horizontal-simmetry-button').addEventListener('click', toggleHorizontalSymmetry, false);
document.getElementById('toggle-vertical-simmetry-button').addEventListener('click', toggleVerticalSymmetry, false);
// Symmetric axes properties
// The horizontal simmetry is not visible by default
let horizontalSimmetryVisible = false;
// The vertical simmetry is not visible by default
let verticalSimmetryVisible = false;
const hAxisColor = "#FF0000";
const vAxisColor = "#00FF00";
// dragging vars
var axisOriginX; // for the vertical axis
var axisOriginY; // for the horizontal axis
function initSymmetricCanvas() {
hSymmetricCanvas.style.display = "none";
vSymmetricCanvas.style.display = "none";
}
const ShapeType = {
RECT: "rect",
ELLIPSE: "ellipse",
}
// getters for internal state
function getHorizontalSymmetryVisible() {
return horizontalSimmetryVisible;
}
function getVerticalSymmetryVisible() {
return verticalSimmetryVisible;
}
// !
// * Some important notes about the symmetric axes
// * h/vDrawAxis function takes levelY/X in input, because you can choose
// * the origin y/x of the axis. In order to do that the level is multiplied
// * by the lineDistance. That's a good thing because the symmetric axis
// * dynamically changes when the lineDistance declared in _pixelGrid.js changes
// !
/**
* It draws the horizontal symmetric axis
* @param {*} levelY indicates at which y the line will be positionated
* @param {String} axisColor axis stroke color as string (i.e: 'red')
* @param {*} axisLineWidth axis stroke width
*/
function hDrawAxis(levelY, axisColor, axisLineWidth) {
axisOriginY = levelY;
console.log(axisOriginY);
// pre-conditions
// if it is not possible to retrieve the context, return
if (!hSymmetricCanvas.getContext) { return; }
const hCtx = hSymmetricCanvas.getContext("2d");
let originalSize = currFile.layers[5].canvas;
if (levelY > originalSize.height) { return; }
// ? The hSymmetricCanvas is lineDistance times bigger so that the lines don't take 1 canvas pixel
// ? but they take 1/lineDistance canvas pixels
hSymmetricCanvas.width = originalSize.width * lineDistance;
hSymmetricCanvas.height = originalSize.height * lineDistance;
// set the stroke line
hCtx.strokeStyle = axisColor;
hCtx.lineWidth = axisLineWidth;
hCtx.beginPath();
hCtx.rect(0, levelY * lineDistance, originalSize.width * lineDistance, 0);
hCtx.stroke();
hCtx.closePath();
}
/**
* It draws the vertical symmetric axis
* @param {*} levelX indicates at which x the line will be positionated
* @param {String} axisColor axis stroke color as string (i.e: 'red')
* @param {*} axisLineWidth axis stroke width
*/
function vDrawAxis(levelX, axisColor, axisLineWidth) {
axisOriginX = levelX;
// if it is not possible to retrieve the context, return
if (!vSymmetricCanvas.getContext) {
return;
}
const vCtx = vSymmetricCanvas.getContext("2d");
let originalSize = currFile.layers[0].canvasSize;
// ? The vSymmetricCanvas is lineDistance times bigger so that the lines don't take 1 canvas pixel
// ? but they take 1/lineDistance canvas pixels
vSymmetricCanvas.width = originalSize[0] * lineDistance;
vSymmetricCanvas.height = originalSize[1] * lineDistance;
// set the stroke line
vCtx.strokeStyle = axisColor;
vCtx.lineWidth = axisLineWidth;
vCtx.beginPath();
vCtx.rect(levelX * lineDistance, 0, 0, originalSize[1] * lineDistance);
vCtx.stroke();
vCtx.closePath();
}
// ? For the moment both horizontal and vertical symmetry are centered only
/**
* It toggles the horizontal symmetry in the editor
*/
function toggleHorizontalSymmetry() {
console.log("toggling");
// Getting the button to change its text
let button = document.getElementById("toggle-horizontal-simmetry-button");
let originalSize = currFile.layers[0].canvas;
horizontalSimmetryVisible = !horizontalSimmetryVisible
if (!horizontalSimmetryVisible) {
// alert("Horizontal Simmetry OFF");
button.innerHTML = "Horizontal Simmetry (Off)";
hSymmetricCanvas.style.display = "none";
return;
}
// alert("Horizontal Simmetry ON");
button.innerHTML = "Horizontal Simmetry (On)";
hSymmetricCanvas.style.display = "inline-block";
// DONE: Show an horizontal line on the canvas
hDrawAxis(originalSize.height / 4, 'blue', 1);
}
/**
* It toggles the vertical symmetry in the editor
*/
function toggleVerticalSymmetry() {
// Getting the button to change its text
let button = document.getElementById("toggle-vertical-simmetry-button");
let originalSize = currFile.layers[0].canvasSize;
verticalSimmetryVisible = !verticalSimmetryVisible
if (!verticalSimmetryVisible) {
button.innerHTML = "Vertical Simmetry (Off)";
vSymmetricCanvas.style.display = "none";
return;
}
// alert("Horizontal Simmetry ON");
button.innerHTML = "Vertical Simmetry (On)";
vSymmetricCanvas.style.display = "inline-block";
// DONE: Show an horizontal line on the canvas
vDrawAxis(originalSize[0] / 1.5, 'red', 1);
}
// !
// * Important notes on specular drawing
// * Suppose that we want to draw specular based on vertical axis:
// * the x of vertical line is by default layers[0].canvasSize[0]/2
// * (I'm going to call it as "axisOriginX").
// * If we draw a pixel at (pixelX: 3, pixelY: 2) it specular pixel will be at
// * (x: axisOriginX +- abs(axisOriginX - pixelX), y: pixelY)
// !
// ! At the moment the axis origin X/Y is layers[0].canvasSize[0/1]/2
// TODO: Mirroring the line
function drawLineSpecular(cursorPosition, toolBrushSize) {
let originalSize = currFile.layers[0].canvasSize;
var originPixelX = Math.floor(lastMouseClickPos[0] / zoom);
var originPixelY = Math.floor(lastMouseClickPos[1] / zoom);
var destinationPixelX = Math.floor(cursorPosition[0] / zoom);
var destinationPixelY = Math.floor(cursorPosition[1] / zoom);
var mirrorOriginY;
var mirrorDestinationY;
var mirrorOriginX;
var mirrorDestinationX;
if (horizontalSimmetryVisible) {
// DONE: implement horizontal specular drawing
var isUnderHorizontalAxis = (originPixelY >= (originalSize[1] / 2));
if (!isUnderHorizontalAxis) {
if (toolBrushSize % 2 == 0) {
mirrorOriginY = Math.floor(axisOriginY + Math.abs(axisOriginY - originPixelY));
mirrorDestinationY = Math.floor(axisOriginY + Math.abs(axisOriginY - destinationPixelY));
} else {
// ? otherwise we have to substract a pixel, in order that the mirror pixel is adjacent to the line
mirrorOriginY = Math.floor(axisOriginY + Math.abs(axisOriginY - originPixelY) - 1);
mirrorDestinationY = Math.floor(axisOriginY + Math.abs(axisOriginY - destinationPixelY) - 1);
}
} else {
if (toolBrushSize % 2 == 0) {
mirrorOriginY = Math.floor(axisOriginY - Math.abs(axisOriginY - originPixelY));
mirrorDestinationY = Math.floor(axisOriginY - Math.abs(axisOriginY - destinationPixelY));
} else {
mirrorOriginY = Math.floor(axisOriginY - Math.abs(axisOriginY - originPixelY) - 1);
mirrorDestinationY = Math.floor(axisOriginY - Math.abs(axisOriginY - destinationPixelY) - 1);
}
}
// User draw
diagLine(
originPixelX,
originPixelY,
destinationPixelX,
destinationPixelY
);
diagLine(
originPixelX,
mirrorOriginY,
destinationPixelX,
mirrorDestinationY
);
}
if (verticalSimmetryVisible) {
// DONE: implement vertical specular drawing
var isOverVerticalAxis = (originPixelX >= (originalSize[0] / 2));
if (!isOverVerticalAxis) {
if (tool.pencil.brushSize % 2 == 0) {
mirrorOriginX = Math.floor(axisOriginX + Math.abs(axisOriginX - originPixelX));
mirrorDestinationX = Math.floor(axisOriginX + Math.abs(axisOriginX - destinationPixelX));
} else {
// ? otherwise we have to substract a pixel, in order that the mirror pixel is adjacent to the line
mirrorOriginX = Math.floor(axisOriginX + Math.abs(axisOriginX - originPixelX) - 1);
mirrorDestinationX = Math.floor(axisOriginX + Math.abs(axisOriginX - destinationPixelX) - 1);
}
} else {
if (tool.pencil.brushSize % 2 == 0) {
mirrorOriginX = Math.floor(axisOriginX - Math.abs(axisOriginX - originPixelX));
mirrorDestinationX = Math.floor(axisOriginX - Math.abs(axisOriginX - destinationPixelX));
} else {
mirrorOriginX = Math.floor(axisOriginX - Math.abs(axisOriginX - originPixelX) - 1);
mirrorDestinationX = Math.floor(axisOriginX - Math.abs(axisOriginX - destinationPixelX) - 1);
}
}
// User draw
diagLine(
originPixelX,
originPixelY,
destinationPixelX,
destinationPixelY
);
// Mirror draw
diagLine(
mirrorOriginX,
originPixelY,
mirrorDestinationX,
destinationPixelY
);
if (horizontalSimmetryVisible) {
// * I do not need to re-compute the mirror coordinates
// * It is basically a combination of vertical and horizontal projection
// Mirror draw
diagLine(
mirrorOriginX,
mirrorOriginY,
mirrorDestinationX,
mirrorDestinationY
);
}
}
}
/**
* It draws the same content that the user draws, but in the opposite side
* based on where the symmetric axes are positionated in the editor. Like a mirror
* @param {*} cursorPosition current cursor position
*/
function drawBrushSpecular(cursorPosition, toolBrushSize) {
let originalSize = currFile.layers[0].canvasSize;
var originPixelX = Math.floor(lastMouseClickPos[0] / zoom);
var originPixelY = Math.floor(lastMouseClickPos[1] / zoom);
var destinationPixelX = Math.floor(cursorPosition[0] / zoom);
var destinationPixelY = Math.floor(cursorPosition[1] / zoom);
var mirrorOriginY;
var mirrorDestinationY;
var mirrorOriginX;
var mirrorDestinationX;
if (horizontalSimmetryVisible) {
// DONE: implement horizontal specular drawing
var isUnderHorizontalAxis = (originPixelY >= axisOriginY);
if (!isUnderHorizontalAxis) {
if (toolBrushSize % 2 == 0) {
mirrorOriginY = Math.floor(axisOriginY + Math.abs(axisOriginY - originPixelY));
mirrorDestinationY = Math.floor(axisOriginY + Math.abs(axisOriginY - destinationPixelY));
} else {
// ? otherwise we have to substract a pixel, in order that the mirror pixel is adjacent to the line
mirrorOriginY = Math.floor(axisOriginY + Math.abs(axisOriginY - originPixelY) - 1);
mirrorDestinationY = Math.floor(axisOriginY + Math.abs(axisOriginY - destinationPixelY) - 1);
}
} else {
if (toolBrushSize % 2 == 0) {
mirrorOriginY = Math.floor(axisOriginY - Math.abs(axisOriginY - originPixelY));
mirrorDestinationY = Math.floor(axisOriginY - Math.abs(axisOriginY - destinationPixelY));
} else {
mirrorOriginY = Math.floor(axisOriginY - Math.abs(axisOriginY - originPixelY) - 1);
mirrorDestinationY = Math.floor(axisOriginY - Math.abs(axisOriginY - destinationPixelY) - 1);
}
}
// User draw
line(
originPixelX,
originPixelY,
destinationPixelX,
destinationPixelY,
toolBrushSize
// tool.pencil.brushSize
);
// Mirror draw
line(
originPixelX,
mirrorOriginY,
destinationPixelX,
mirrorDestinationY,
toolBrushSize
// tool.pencil.brushSize
);
}
if (verticalSimmetryVisible) {
// DONE: implement vertical specular drawing
var isOverVerticalAxis = (originPixelX >= (axisOriginX));
if (!isOverVerticalAxis) {
if (tool.pencil.brushSize % 2 == 0) {
mirrorOriginX = Math.floor(axisOriginX + Math.abs(axisOriginX - originPixelX));
mirrorDestinationX = Math.floor(axisOriginX + Math.abs(axisOriginX - destinationPixelX));
} else {
// ? otherwise we have to substract a pixel, in order that the mirror pixel is adjacent to the line
mirrorOriginX = Math.floor(axisOriginX + Math.abs(axisOriginX - originPixelX) - 1);
mirrorDestinationX = Math.floor(axisOriginX + Math.abs(axisOriginX - destinationPixelX) - 1);
}
} else {
if (tool.pencil.brushSize % 2 == 0) {
mirrorOriginX = Math.floor(axisOriginX - Math.abs(axisOriginX - originPixelX));
mirrorDestinationX = Math.floor(axisOriginX - Math.abs(axisOriginX - destinationPixelX));
} else {
mirrorOriginX = Math.floor(axisOriginX - Math.abs(axisOriginX - originPixelX) - 1);
mirrorDestinationX = Math.floor(axisOriginX - Math.abs(axisOriginX - destinationPixelX) - 1);
}
}
// User draw
line(
originPixelX,
originPixelY,
destinationPixelX,
destinationPixelY,
tool.pencil.brushSize
);
// Mirror draw
line(
mirrorOriginX,
originPixelY,
mirrorDestinationX,
destinationPixelY,
tool.pencil.brushSize
);
if (horizontalSimmetryVisible) {
// * I do not need to re-compute the mirror coordinates
// * It is basically a combination of vertical and horizontal projection
// Mirror draw
line(
mirrorOriginX,
mirrorOriginY,
mirrorDestinationX,
mirrorDestinationY,
tool.pencil.brushSize
);
}
}
}
// TODO: Implement vertical symmetry
// * Shape Mirroring
function startShapeDrawingSpecular(startX, startY, shapeType) {
console.clear();
console.log("START\n");
// normal drawing
console.log("normal start rect");
startRectDrawing(startX, startY, 0);
let originalSize = currFile.layers[0].canvasSize;
if (horizontalSimmetryVisible) {
var isUnderHorizontalAxis = (startY >= axisOriginY);
// startMirrorRectX is the same as startX, only startMirrorRectY changes
startMirrorRectX = startX;
if (!isUnderHorizontalAxis) {
// case when the user draws onto the top of the horizontal axis
// console.log("starting point on the top");
if (tool.rectangle.brushSize % 2 == 0) {
startMirrorRectY = Math.floor(axisOriginY + Math.abs(axisOriginY - startY) + 1) + 0.5;
} else {
startMirrorRectY = Math.floor(axisOriginY + Math.abs(axisOriginY - startY)) + 0.5;
}
} else {
// case when the user draws onto the bottom of the horizontal axis
// console.log("starting point on the bottom");
if (tool.rectangle.brushSize % 2 == 0) {
startMirrorRectY = Math.floor(axisOriginY - Math.abs(axisOriginY - startY) + 1) + 0.5;
} else {
startMirrorRectY = Math.floor(axisOriginY - Math.abs(axisOriginY - startY)) + 0.5;
}
}
/* console.log("drawing rect in terms of cells at (" + startX + ", " + startY + ")");
console.log("drawing mirror in terms of cells at (" + startMirrorRectX + ", " + startMirrorRectY + ")"); */
switch (shapeType) {
case ShapeType.RECT:
// mirror drawing
console.log("horizontal start rect");
startRectDrawing(startMirrorRectX, startMirrorRectY, 1);
break;
default:
break;
}
}
if (verticalSimmetryVisible) {
var isOverVerticalAxis = (startX >= axisOriginX);
// startMirrorRectY is the same as startY, only startMirrorRectX changes
_startMirrorRectY = startY;
if (!isOverVerticalAxis) {
// case when the user draws onto the left of the vertical axis
if (tool.rectangle.brushSize % 2 == 0) {
_startMirrorRectX = Math.floor(axisOriginX + Math.abs(axisOriginX - startX) + 1) + 0.5;
} else {
_startMirrorRectX = Math.floor(axisOriginX + Math.abs(axisOriginX - startX)) + 0.5;
}
} else {
// case when the user draws onto the right of the vertical axis
if (tool.rectangle.brushSize % 2 == 0) {
_startMirrorRectX = Math.floor(axisOriginX - Math.abs(axisOriginX - startX) + 1) + 0.5;
} else {
_startMirrorRectX = Math.floor(axisOriginX - Math.abs(axisOriginX - startX)) + 0.5;
}
}
switch (shapeType) {
case ShapeType.RECT:
// mirror drawing
console.log("vertical start rect");
startRectDrawing(_startMirrorRectX, _startMirrorRectY, 2);
if (horizontalSimmetryVisible) {
// I have to draw the shape into the fourth quadrant
__startMirrorRectX = _startMirrorRectX;
__startMirrorRectY = startMirrorRectY;
startRectDrawing(_startMirrorRectX, startMirrorRectY, 3);
}
break;
default:
break;
}
}
}
// * Metrics are right
// TODO: Fix the mirror preview
function updateShapeDrawingSpecular(x, y, shapeType) {
switch (shapeType) {
case ShapeType.RECT:
// normal drawing
updateRectDrawing(x, y, 0);
// mirror drawing
// updateRectDrawing(x, mirrorY, true);
break;
default:
break;
}
}
function endShapeDrawingSpecular(x, y, shapeType) {
//console.clear();
console.log("END\n");
let originalSize = currFile.layers[0].canvasSize;
// in terms of px
let mirrorY;
let mirrorX;
// in terms of cells
let originPixelX = Math.floor(x / zoom);
let originPixelY = Math.floor(y / zoom);
// normal drawing
endRectDrawing(x, y, 0);
if (horizontalSimmetryVisible) {
var isUnderHorizontalAxis = (originPixelY >= axisOriginY);
if (!isUnderHorizontalAxis) {
if (tool.rectangle.brushSize % 2 == 0) {
mirrorY = Math.floor(axisOriginY + Math.abs(axisOriginY - originPixelY));
} else {
mirrorY = Math.floor(axisOriginY + Math.abs(axisOriginY - originPixelY) - 1);
}
} else {
/* console.log("axis origin Y = " + axisOriginY);
console.log("originPixelY = " + originPixelY); */
if (tool.rectangle.brushSize % 2 == 0) {
mirrorY = Math.floor(axisOriginY - Math.abs(axisOriginY - originPixelY));
} else {
mirrorY = Math.floor(axisOriginY - Math.abs(axisOriginY - originPixelY)) - 1;
}
}
endMirrorRectX = originPixelX;
endMirrorRectY = mirrorY;
console.log("end rect in terms of cells at (" + originPixelX + ", " + originPixelY + ")");
console.log("end mirror in terms of cells at (" + originPixelX + ", " + mirrorY + ")");
switch (shapeType) {
case ShapeType.RECT:
// mirror drawing
console.log("horizontal end rect");
endRectDrawing(x, mirrorY, 1);
break;
default:
break;
}
}
if (verticalSimmetryVisible) {
var isOverVerticalAxis = (originPixelX >= axisOriginX);
if (!isOverVerticalAxis) {
if (tool.rectangle.brushSize % 2 == 0) {
mirrorX = Math.floor(axisOriginX + Math.abs(axisOriginX - originPixelX));
} else {
mirrorX = Math.floor(axisOriginX + Math.abs(axisOriginX - originPixelX) - 1);
}
} else {
/* console.log("axis origin Y = " + axisOriginY);
console.log("originPixelY = " + originPixelY); */
if (tool.rectangle.brushSize % 2 == 0) {
mirrorX = Math.floor(axisOriginX - Math.abs(axisOriginX - originPixelX));
} else {
mirrorX = Math.floor(axisOriginX - Math.abs(axisOriginX - originPixelX)) - 1;
}
}
// console.log("assigning _ends");
_endMirrorRectX = mirrorX;
_endMirrorRectY = originPixelY;
switch (shapeType) {
case ShapeType.RECT:
// mirror drawing
console.log("vertical end rect");
endRectDrawing(mirrorX, y, 2);
if (horizontalSimmetryVisible) {
// I have to draw the shape into the fourth quadrant
__endMirrorRectX = _endMirrorRectX;
__endMirrorRectY = endMirrorRectY;
endRectDrawing(mirrorX, __endMirrorRectY);
}
break;
default:
break;
}
}
}
return {
hSymmetricCanvas,
vSymmetricCanvas,
initSymmetricCanvas,
getHorizontalSymmetryVisible,
getVerticalSymmetryVisible,
ShapeType,
startShapeDrawingSpecular,
updateShapeDrawingSpecular,
endShapeDrawingSpecular,
drawBrushSpecular
}
})();

2
js/pixel-editor.js
View File

@ -27,7 +27,7 @@
/** SPECIAL LAYERS **/
//=include layers/Checkerboard.js
//=include layers/PixelGrid.js
//=include layers/SymmetryModule.js
//=include layers/HSymmetryLayer.js
/** TOOLS **/
//=include tools/DrawingTool.js

52
js/tools/BrushTool.js
View File

@ -19,18 +19,66 @@ class BrushTool extends ResizableTool {
return;
//draw line to current pixel
if (cursorTarget.className == 'drawingCanvas' || cursorTarget.className == 'drawingCanvas') {
currFile.currentLayer.drawLine(Math.floor(this.prevMousePos[0]/currFile.zoom),
currFile.currentLayer.drawLine(
Math.floor(this.prevMousePos[0]/currFile.zoom),
Math.floor(this.prevMousePos[1]/currFile.zoom),
Math.floor(this.currMousePos[0]/currFile.zoom),
Math.floor(this.currMousePos[1]/currFile.zoom),
this.currSize
);
// If Horizontal Symmetry mode is activated
// draw specular
if (currFile.hSymmetricLayer.isEnabled) {
// if the current mouse position is over the horizontal axis
let originalSize = currFile.canvasSize;
let midY = (originalSize[1] / 2);
let prevMousePosY = Math.floor(this.prevMousePos[1] / currFile.zoom);
let currMousePosY = Math.floor(this.currMousePos[1] / currFile.zoom);
console.log("midY: " + midY);
console.log("currMouseY: " + currMousePosY);
if (currMousePosY <= midY) {
console.log("Drawing over the horizontal axis");
let mirrorPrevY = Math.floor(midY + Math.abs(midY - prevMousePosY));
let mirrorCurrentY = Math.floor(midY + Math.abs(midY - currMousePosY));
this.mirrorDraw(mirrorPrevY, mirrorCurrentY);
} else {
console.log("Drawing under the horizontal axis");
let mirrorPrevY = Math.floor(midY - Math.abs(midY - prevMousePosY));
let mirrorCurrentY = Math.floor(midY - Math.abs(midY - currMousePosY));
this.mirrorDraw(mirrorPrevY, mirrorCurrentY);
}
}
}
currFile.currentLayer.updateLayerPreview();
}
onEnd(mousePos) {
mirrorDraw(mirrorPrevY, mirrorCurrentY) {
if (this.currSize % 2 === 0) {
currFile.currentLayer.drawLine(
Math.floor(this.prevMousePos[0] / currFile.zoom),
Math.floor(mirrorPrevY),
Math.floor(this.currMousePos[0] / currFile.zoom),
Math.floor(mirrorCurrentY),
this.currSize
);
} else {
currFile.currentLayer.drawLine(
Math.floor(this.prevMousePos[0] / currFile.zoom),
Math.floor(mirrorPrevY - 1),
Math.floor(this.currMousePos[0] / currFile.zoom),
Math.floor(mirrorCurrentY - 1),
this.currSize
);
}
}
onEnd(mousePos) {
super.onEnd(mousePos);
}

47
js/tools/EraserTool.js
View File

@ -27,9 +27,56 @@ class EraserTool extends ResizableTool {
);
}
// If Horizontal Symmetry mode is activated
// draw specular
if (currFile.hSymmetricLayer.isEnabled) {
// if the current mouse position is over the horizontal axis
let originalSize = currFile.canvasSize;
let midY = (originalSize[1] / 2);
let prevMousePosY = Math.floor(this.prevMousePos[1] / currFile.zoom);
let currMousePosY = Math.floor(this.currMousePos[1] / currFile.zoom);
console.log("midY: " + midY);
console.log("currMouseY: " + currMousePosY);
if (currMousePosY <= midY) {
console.log("Drawing over the horizontal axis");
let mirrorPrevY = Math.floor(midY + Math.abs(midY - prevMousePosY));
let mirrorCurrentY = Math.floor(midY + Math.abs(midY - currMousePosY));
this.mirrorDraw(mirrorPrevY, mirrorCurrentY);
} else {
console.log("Drawing under the horizontal axis");
let mirrorPrevY = Math.floor(midY - Math.abs(midY - prevMousePosY));
let mirrorCurrentY = Math.floor(midY - Math.abs(midY - currMousePosY));
this.mirrorDraw(mirrorPrevY, mirrorCurrentY);
}
}
currFile.currentLayer.updateLayerPreview();
}
mirrorDraw(mirrorPrevY, mirrorCurrentY) {
if (this.currSize % 2 === 0) {
currFile.currentLayer.drawLine(
Math.floor(this.prevMousePos[0] / currFile.zoom),
Math.floor(mirrorPrevY),
Math.floor(this.currMousePos[0] / currFile.zoom),
Math.floor(mirrorCurrentY),
this.currSize
);
} else {
currFile.currentLayer.drawLine(
Math.floor(this.prevMousePos[0] / currFile.zoom),
Math.floor(mirrorPrevY - 1),
Math.floor(this.currMousePos[0] / currFile.zoom),
Math.floor(mirrorCurrentY - 1),
this.currSize
);
}
}
onEnd(mousePos) {
super.onEnd(mousePos);
this.endMousePos = mousePos;

1
views/canvases.hbs
View File

@ -6,6 +6,5 @@
<canvas id="checkerboard" class = "drawingCanvas"></canvas>
<canvas id="pixel-grid" class = "drawingCanvas"></canvas>
<canvas id="horizontal-symmetric" class="drawingCanvas"></canvas>
<canvas id="vertical-symmetric" class ="drawingCanvas"></canvas>
</div>
<div id="canvas-view-shadow"></div>

3
views/main-menu.hbs
View File

@ -24,8 +24,7 @@
<button>View</button>
<ul>
<li><button id="toggle-pixelgrid-button" onclick="currFile.pixelGrid.togglePixelGrid()">Show pixel grid</button></li>
<li><button id="toggle-horizontal-simmetry-button">Horizontal Simmetry (Off)</button></li>
<li><button id="toggle-vertical-simmetry-button">Vertical Simmetry (Off)</button></li>
<li><button id="toggle-h-symmetry-button" onclick="currFile.hSymmetricLayer.toggleHAxis()">Show Horizontal Symmetry</button></li>
</ul>
</li>
<li>

5
views/popups/settings.hbs
View File

@ -12,6 +12,11 @@
<div class = "settings-entry">
<label for="setting-pixelGridColour">Colour of the pixel grid</label><input id="setting-pixelGridColour" value = "#0000FF" autocomplete="off"/>
</div>
<h2>H Symmetry Axis</h2>
<div class = "settings-entry">
<label for="setting-hSymmetryColor">Colour of the horizontal axis</label><input id="setting-hSymmetryColor" value = "#0000FF" autocomplete="off"/>
</div>
</div>
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