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Add ability to snap-to-grid when adding a microphone point #26

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Add ability to snap-to-grid when adding a microphone point #26

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4 changes: 4 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -94,3 +94,7 @@ If you'd like to cite this project, please use this BibTex:
year={2024}
}
```

## 🖱️ Snap-to-Grid Functionality

You can now snap a microphone point to the nearest grid intersection by using `Shift + Click` when adding a microphone point. This allows for more precise placement of microphones on the grid.
17 changes: 13 additions & 4 deletions src/components/MicMasterFlex.tsx
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Expand Up @@ -43,6 +43,15 @@ const MicMasterFlex = () => {
y: -((point.y - (window.innerHeight / 2) - pan.y) / zoom),
});

// Snap point to nearest grid intersection
const snapToGrid = (point: Point): Point => {
const step = gridSize / gridDivisions;
return {
x: Math.round(point.x / step) * step,
y: Math.round(point.y / step) * step,
};
};

// Handle mouse down on the grid
const handleMouseDown = (e: React.MouseEvent) => {
if (!svgRef.current) return;
Expand Down Expand Up @@ -89,11 +98,11 @@ const MicMasterFlex = () => {

if (Math.abs(point.x - dragStart!.x) < 5 && Math.abs(point.y - dragStart!.y) < 5) {
if (mode === 'add') {
// Add new microphone at exact position
// Add new microphone at exact position or snapped to grid
const newMic: Microphone = {
id: `mic-${Date.now()}`,
x: gridPoint.x,
y: gridPoint.y,
x: e.shiftKey ? snapToGrid(gridPoint).x : gridPoint.x,
y: e.shiftKey ? snapToGrid(gridPoint).y : gridPoint.y,
};
setMicrophones([...microphones, newMic]);
} else if (mode === 'delete' && hoveredMic) {
Expand Down Expand Up @@ -357,4 +366,4 @@ const MicMasterFlex = () => {
);
};

export default MicMasterFlex;
export default MicMasterFlex;