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Fix glitch with undo'ing fills of the same color as the surrounding barrier pixels

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master
Joshua Sigona 5 years ago
parent c2dd7a2b12
commit 429e006e05
1 changed files with 80 additions and 33 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 113
      canvas.js

113
canvas.js
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@ -6,7 +6,6 @@ var ROWS = 30;
var COLS = 30; var COLS = 30;
var customColorToolbar=false; var customColorToolbar=false;
var fillTool = false; var fillTool = false;
var floodFillInProgress=0;
var changedPixels = {}; //pixel data for all changed pixels in this step. var changedPixels = {}; //pixel data for all changed pixels in this step.
/* /*
@ -56,7 +55,8 @@ document.addEventListener("DOMContentLoaded",()=>{
function Undo() { function Undo() {
//Execute the reverse. //Execute the reverse.
var state = pixelStates[currentPixelState]; var state = pixelStates[--currentPixelState];
console.log("Undo "+currentPixelState)
//console.log("Undo "+JSON.stringify(state)) //console.log("Undo "+JSON.stringify(state))
switch (state["STEPTYPE"]) { switch (state["STEPTYPE"]) {
case "ADD":{ case "ADD":{
@ -77,14 +77,15 @@ document.addEventListener("DOMContentLoaded",()=>{
redoButton.disabled = false; redoButton.disabled = false;
undoButton.disabled = true; undoButton.disabled = true;
if (currentPixelState>0) { if (currentPixelState>0) {
currentPixelState--; //currentPixelState--;
undoButton.disabled = false; undoButton.disabled = false;
} }
} }
function Redo() { function Redo() {
//Execute the re-reverse. //Execute the re-reverse.
var state = pixelStates[currentPixelState]; console.log("Redo "+currentPixelState)
var state = pixelStates[currentPixelState++];
//console.log("Redo "+JSON.stringify(state)) //console.log("Redo "+JSON.stringify(state))
switch (state["STEPTYPE"]) { switch (state["STEPTYPE"]) {
case "ADD":{ case "ADD":{
@ -104,8 +105,7 @@ document.addEventListener("DOMContentLoaded",()=>{
} }
redoButton.disabled = true; redoButton.disabled = true;
undoButton.disabled = false; undoButton.disabled = false;
if (currentPixelState<pixelStates.length-1) { if (currentPixelState<pixelStates.length) {
currentPixelState++;
redoButton.disabled = false; redoButton.disabled = false;
} }
} }
@ -156,15 +156,15 @@ document.addEventListener("DOMContentLoaded",()=>{
var MouseStateUp = (e)=>{ var MouseStateUp = (e)=>{
e.preventDefault(); e.preventDefault();
mouseState = -1; mouseState = -1;
if (fillTool && floodFillInProgress===0) { if (fillTool) {
if (e.target.tagName==="TH") { if (e.target.tagName==="TH") {
var coords = getCoordinates(e.target) var coords = getCoordinates(e.target)
floodFill(coords.x,coords.y,e.target.style.background,selectedColor) floodFill(coords.x,coords.y,e.target.style.background,selectedColor)
changedPixels["STEPTYPE"]="FILL" /*changedPixels["STEPTYPE"]="FILL"
changedPixels["backcolor"]=e.target.style.background changedPixels["backcolor"]=e.target.style.background
changedPixels["newcolor"]=selectedColor changedPixels["newcolor"]=selectedColor
changedPixels["PIXELX"]=coords.x changedPixels["PIXELX"]=coords.x
changedPixels["PIXELY"]=coords.y changedPixels["PIXELY"]=coords.y*/
} }
} }
toolbar.style.visibility = "visible"; toolbar.style.visibility = "visible";
@ -191,7 +191,7 @@ document.addEventListener("DOMContentLoaded",()=>{
} }
changedPixels = {} changedPixels = {}
console.log(pixelStates) console.log(pixelStates)
currentPixelState = pixelStates.length-1; currentPixelState = pixelStates.length;
} }
} }
var MouseStateDown = (e)=>{ var MouseStateDown = (e)=>{
@ -513,44 +513,91 @@ document.addEventListener("DOMContentLoaded",()=>{
//console.log("Flood fill at "+startx+","+starty) //console.log("Flood fill at "+startx+","+starty)
//Start a flood fill in 4 cardinations directions and the current spot. //Start a flood fill in 4 cardinations directions and the current spot.
//Set the base color to what the dot currently is. Then all around this spot, fill in any dots that are also this color. Don't spread the dot if there's not a color of that type. //Set the base color to what the dot currently is. Then all around this spot, fill in any dots that are also this color. Don't spread the dot if there's not a color of that type.
if (!force) {if (!force) {floodFillInProgress++;}}
if (baseColor===newColor) { if (baseColor===newColor) {
floodFillInProgress--;
return return
} }
startx = Number(startx) startx = Number(startx)
starty = Number(starty) starty = Number(starty)
if (!force) {floodFillInProgress++;} if (document.getElementById("pos_"+(startx)+"_"+(starty)).style.background===baseColor) {
setTimeout(()=>{if (document.getElementById("pos_"+(startx)+"_"+(starty)).style.background===baseColor) { var target = document.getElementById("pos_"+(startx)+"_"+(starty));
document.getElementById("pos_"+(startx)+"_"+(starty)).style.background = newColor if (!(target.id in changedPixels)) {
var mycoords = getCoordinates(target)
if ("PIXELS" in changedPixels) {
changedPixels["PIXELS"]+=","+mycoords.x+","+mycoords.y
} else {
changedPixels["PIXELS"]=mycoords.x+","+mycoords.y
}
changedPixels["old_"+target.id]=target.style.background;
changedPixels[target.id]=newColor
changedPixels["STEPTYPE"]="ADD"
}
target.style.background = newColor
floodFill(startx,starty,baseColor,newColor,force) floodFill(startx,starty,baseColor,newColor,force)
} }
if (!force) {floodFillInProgress--;}},0) if (startx+1 < COLS && document.getElementById("pos_"+(startx+1)+"_"+(starty+0)).style.background===baseColor) {
if (!force) {floodFillInProgress++;} var target = document.getElementById("pos_"+(startx+1)+"_"+(starty));
setTimeout(()=>{if (startx+1 < COLS && document.getElementById("pos_"+(startx+1)+"_"+(starty+0)).style.background===baseColor) { if (!(target.id in changedPixels)) {
document.getElementById("pos_"+(startx+1)+"_"+(starty+0)).style.background = newColor var mycoords = getCoordinates(target)
if ("PIXELS" in changedPixels) {
changedPixels["PIXELS"]+=","+mycoords.x+","+mycoords.y
} else {
changedPixels["PIXELS"]=mycoords.x+","+mycoords.y
}
changedPixels["old_"+target.id]=target.style.background;
changedPixels[target.id]=newColor
changedPixels["STEPTYPE"]="ADD"
}
target.style.background = newColor
floodFill(startx+1,starty,baseColor,newColor,force) floodFill(startx+1,starty,baseColor,newColor,force)
} }
if (!force) {floodFillInProgress--;}},0) if (startx-1 >= 0 && document.getElementById("pos_"+(startx-1)+"_"+(starty+0)).style.background===baseColor) {
if (!force) {floodFillInProgress++;} var target = document.getElementById("pos_"+(startx-1)+"_"+(starty));
setTimeout(()=>{if (startx-1 >= 0 && document.getElementById("pos_"+(startx-1)+"_"+(starty+0)).style.background===baseColor) { if (!(target.id in changedPixels)) {
document.getElementById("pos_"+(startx-1)+"_"+(starty+0)).style.background = newColor var mycoords = getCoordinates(target)
if ("PIXELS" in changedPixels) {
changedPixels["PIXELS"]+=","+mycoords.x+","+mycoords.y
} else {
changedPixels["PIXELS"]=mycoords.x+","+mycoords.y
}
changedPixels["old_"+target.id]=target.style.background;
changedPixels[target.id]=newColor
changedPixels["STEPTYPE"]="ADD"
}
target.style.background = newColor
floodFill(startx-1,starty,baseColor,newColor,force) floodFill(startx-1,starty,baseColor,newColor,force)
} }
if (!force) {floodFillInProgress--;}},0) if (starty+1 < ROWS && document.getElementById("pos_"+(startx)+"_"+(starty+1)).style.background===baseColor) {
if (!force) {floodFillInProgress++;} var target = document.getElementById("pos_"+(startx)+"_"+(starty+1));
setTimeout(()=>{if (starty+1 < ROWS && document.getElementById("pos_"+(startx)+"_"+(starty+1)).style.background===baseColor) { if (!(target.id in changedPixels)) {
document.getElementById("pos_"+(startx)+"_"+(starty+1)).style.background = newColor var mycoords = getCoordinates(target)
if ("PIXELS" in changedPixels) {
changedPixels["PIXELS"]+=","+mycoords.x+","+mycoords.y
} else {
changedPixels["PIXELS"]=mycoords.x+","+mycoords.y
}
changedPixels["old_"+target.id]=target.style.background;
changedPixels[target.id]=newColor
changedPixels["STEPTYPE"]="ADD"
}
target.style.background = newColor
floodFill(startx,starty+1,baseColor,newColor,force) floodFill(startx,starty+1,baseColor,newColor,force)
} }
if (!force) {floodFillInProgress--;}},0) if (starty-1 >= 0 && document.getElementById("pos_"+(startx)+"_"+(starty-1)).style.background===baseColor) {
if (!force) {floodFillInProgress++;} var target = document.getElementById("pos_"+(startx)+"_"+(starty-1));
setTimeout(()=>{if (starty-1 >= 0 && document.getElementById("pos_"+(startx)+"_"+(starty-1)).style.background===baseColor) { if (!(target.id in changedPixels)) {
document.getElementById("pos_"+(startx)+"_"+(starty-1)).style.background = newColor var mycoords = getCoordinates(target)
if ("PIXELS" in changedPixels) {
changedPixels["PIXELS"]+=","+mycoords.x+","+mycoords.y
} else {
changedPixels["PIXELS"]=mycoords.x+","+mycoords.y
}
changedPixels["old_"+target.id]=target.style.background;
changedPixels[target.id]=newColor
changedPixels["STEPTYPE"]="ADD"
}
target.style.background = newColor
floodFill(startx,starty-1,baseColor,newColor,force) floodFill(startx,starty-1,baseColor,newColor,force)
} }
if (!force) {floodFillInProgress--;}},0)
if (!force) {floodFillInProgress--;}
} }
generateTable(ROWS,COLS); generateTable(ROWS,COLS);

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