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Code Activity

[client] Finish erasing. It _works_ :D :D :D

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This commit is contained in:
Starbeamrainbowlabs 2017-12-08 20:37:42 +00:00
parent d5f6407cf5
commit 84b2c83fe6
Signed by: sbrl
GPG key ID: 1BE5172E637709C2
2 changed files with 84 additions and 29 deletions
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24
Nibriboard/ClientFiles/Chunk.js
View file

@ -76,12 +76,32 @@ class Chunk
getLineUnderPoint(point)
{
// Prefer lines that have been drawn later (i.e. on top)
for (let i = this.lines.length - 1; i > 0; i--) {
for (let i = this.lines.length - 1; i >= 0; i--) {
// If our distance to the line is less than half the width (i.e.
// the radius), then we must be inside it
if(point_line_distance_multi(point, this.lines[i].Points) <= this.lines[i].Width / 2)
let thisLineDistanceData = point_line_distance_multi(point, this.lines[i].Points);
if(thisLineDistanceData[1] <= this.lines[i].Width / 2)
return this.lines[i];
}
return null;
}
/**
* Removes the line with the specified unique id from this chunk.
* Warning: This is client-side only! The server won't get told about this,
* and changes will be overwritten by the next chunk update!
* @param {string} targetUniqueId The target unique id of the line to remove.
*/
removeByUniqueId(targetUniqueId)
{
// Search for the line with the target unique id
for(let i in this.lines) {
if(this.lines[i].UniqueId == targetUniqueId) {
// Found it! Remove it and return.
this.lines.splice(i, 1);
break;
}
}
}
update(dt)

89
Nibriboard/ClientFiles/Pencil.js
View file

@ -98,6 +98,12 @@ class Pencil
LineWidth: this.currentLineWidth
});
break;
case "eraser":
// Put the pencil down, but don't tell the server since we're
// not drawing a line
this.pencilDown = true;
break;
}
}
@ -107,13 +113,12 @@ class Pencil
if(event.target != this.canvas)
return;
// Don't draw anything if the left mouse button isn't down
if(/*!this.mouse.leftDown || (is this really needed?)*/ !this.pencilDown)
return;
switch(this.boardWindow.interface.currentTool)
{
case "brush":
if(!this.pencilDown)
return; // Don't draw anything if the left mouse button isn't down
// The server only supports ints atm, so we have to round here :-(
// TODO: Lift this limit
var nextPoint = new Vector(
@ -131,18 +136,39 @@ class Pencil
break;
case "eraser":
let locRef = this.boardWin.cursorSyncer.absCursorPosition;
if(!this.pencilDown)
return; // Only erase when the pencil is down
let locRef = this.boardWindow.cursorSyncer.absCursorPosition;
let hoverChunkRef = new ChunkReference(
this.boardWindow.currentPlaneName,
Math.floor((this.boardWindow.viewport.x + this.mouse.position.x) / this.boardWindow.gridSize),
Math.floor((this.boardWindow.viewport.y + this.mouse.position.y) / this.boardWindow.gridSize)
Math.floor(locRef.x / this.boardWindow.gridSize),
Math.floor(locRef.y / this.boardWindow.gridSize)
);
let hoverChunk = this.boardWindow.chunkCache.fetchChunk(hoverChunk);
if(hoverChunk == null)
let hoverChunk = this.boardWindow.chunkCache.fetchChunk(hoverChunkRef);
if(hoverChunk == null) {
console.warn(`Can't erase on chunk ${hoverChunkRef} as it's currently not loaded.`);
break; // If it's null, then we haven't received it yet from the server
}
let lineToErase = hoverChunk.getLineUnderPoint()
let lineToErase = hoverChunk.getLineUnderPoint(locRef);
if(lineToErase == null) {
console.debug(`No line found at abs ${locRef}.`);
break; // There's no line underneath the cursor atm
}
console.info(`[pencil] Erasing line with unique id ${lineToErase.UniqueId} from ${hoverChunkRef}.`);
// Ask the server politely to remove the line
this.rippleLink.send({
Event: "LineRemove",
ContainingChunk: hoverChunkRef,
UniqueId: lineToErase.UniqueId
});
// Remove the line ourselves too to make the interface update faster
hoverChunk.removeByUniqueId(lineToErase.UniqueId);
break;
case "pan":
@ -161,27 +187,36 @@ class Pencil
}
handleMouseUp(event) {
// Don't do anything at all if the brush tool isn't selected
if(this.boardWindow.interface.currentTool !== "brush")
return;
// Ignore it if the ctrl key is held down - see above
if(this.boardWindow.keyboard.DownKeys.includes(17))
return;
this.sendUnsent();
// Tell the server that the line is complete
this.rippleLink.send({
Event: "LineComplete",
LineId: this.currentLineId
});
this.pencilDown = false;
// Reset the current line segments
this.currentLineSegments = [];
this.currentSimplifiedLineSegments = [];
// Regenerate the line id
this.currentLineId = cuid();
switch(this.boardWindow.interface.currentTool)
{
case "brush":
this.sendUnsent();
// Tell the server that the line is complete
this.rippleLink.send({
Event: "LineComplete",
LineId: this.currentLineId
});
this.pencilDown = false;
// Reset the current line segments
this.currentLineSegments = [];
this.currentSimplifiedLineSegments = [];
// Regenerate the line id
this.currentLineId = cuid();
break;
case "eraser":
this.pencilDown = false;
break;
}
}
/**