Add Box drag to select multiple objects - Githubissues

dndplayer / dnd-player

An online virtual DND playground to support online groups.

https://dnd-player.com

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Add Box drag to select multiple objects #45

Open chrisella opened 5 years ago

chrisella commented 5 years ago

The selection mechanism was originally planned to support multiple items I.E. The selected item in the state is an array, just only 1 item currently.

Getting this in is somewhat crucial to helping the DM quickly move multiple things AND flag properties of multiple things.

The actual visual of the dragging should be fairly easy:

On MouseDown over free space flag it as dragging and save the start position
When MouseMove beyond a threshold flag it as box selecting and draw a rect from start to current position
On MouseUp remove the rectangle and calculate all the objects that were within the bounds of the drawn region.

sounds simple ... :)

chrisella commented 5 years ago

This needs to ABS the rectangle that's generated, so we can handle negative dragged boxes I.E. Left / Up