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Fixed brush preview snapping

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This commit is contained in:
unsettledgames 2020-09-17 16:11:00 +02:00
parent c27a355904
commit 37a532236b
3 changed files with 19 additions and 6 deletions
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13
js/_mouseEvents.js
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@ -157,16 +157,23 @@ window.addEventListener("mouseup", function (mouseEvent) {
}, false); }, false);
// TODO: Make it snap to the pixel grid // TODO: Make it snap to the pixel grid
function setPreviewPosition(preview, cursor, size){ function setPreviewPosition(preview, size){
let toAdd = 0;
// This prevents the brush to be placed in the middle of pixels
if (size % 2 == 0) {
toAdd = 0.5;
}
preview.style.left = ( preview.style.left = (
currentLayer.canvas.offsetLeft currentLayer.canvas.offsetLeft
+ Math.floor(cursor[0]/zoom) * zoom + Math.floor(cursor[0]/zoom) * zoom
- Math.floor(size / 2) * zoom - Math.floor(size / 2) * zoom + toAdd
) + 'px'; ) + 'px';
preview.style.top = ( preview.style.top = (
currentLayer.canvas.offsetTop currentLayer.canvas.offsetTop
+ Math.floor(cursor[1]/zoom) * zoom + Math.floor(cursor[1]/zoom) * zoom
- Math.floor(size / 2) * zoom - Math.floor(size / 2) * zoom + toAdd
) + 'px'; ) + 'px';
} }

10
js/_tools.js
View File

@ -95,8 +95,14 @@ class Tool {
} }
moveBrushPreview(cursorLocation) { moveBrushPreview(cursorLocation) {
brushPreview.style.left = (Math.ceil(cursorLocation[0] / zoom) * zoom + currentLayer.canvas.offsetLeft - this.currentBrushSize * zoom / 2 - zoom / 2) + 'px'; let toSub = 0;
brushPreview.style.top = (Math.ceil(cursorLocation[1] / zoom) * zoom + currentLayer.canvas.offsetTop - this.currentBrushSize * zoom / 2 - zoom / 2) + 'px'; // Prevents the brush to be put in the middle of pixels
if (this.currentBrushSize % 2 == 0) {
toSub = 0.5;
}
brushPreview.style.left = (Math.ceil(cursorLocation[0] / zoom) * zoom + currentLayer.canvas.offsetLeft - this.currentBrushSize * zoom / 2 - zoom / 2 - toSub * zoom) + 'px';
brushPreview.style.top = (Math.ceil(cursorLocation[1] / zoom) * zoom + currentLayer.canvas.offsetTop - this.currentBrushSize * zoom / 2 - zoom / 2 - toSub * zoom) + 'px';
} }
} }