| Time |
Nick |
Message |
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| 11:00 |
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| 11:12 |
kilbith |
is there any way to get a ServerActiveObject starting from a ISceneNode? |
| 11:31 |
celeron55 |
no because ISceneNode is a client-side thing and ServerActiveObject is a server-side thing |
| 11:33 |
kilbith |
I know but I imagined that we could get an ID from ISceneNode and use it from ServerActiveObject |
| 11:34 |
kilbith |
or there's another way? |
| 11:55 |
kilbith |
something like: get the ISceneNode's ID -> get an ActiveObject from the server environment |
| 11:55 |
kilbith |
or there's no relationship at all possible? |
| 12:14 |
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| 12:41 |
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| 12:58 |
kilbith |
success: http://codepad.org/9ADd1x70 |
| 12:59 |
kilbith |
`cam->getSelectedNodeID()` is the ISceneNode's ID |
| 13:07 |
kilbith |
looks like I've been lucky and getActiveObject actually expects a peer's ID |
| 13:07 |
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| 13:09 |
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| 13:32 |
kilbith |
Krock: you did talk about shared IDs between client/server, can you tell me more? |
| 13:54 |
Krock |
kilbith: the server has to update the CAO's position somehow, right? so there's an ID that must match |
| 13:56 |
Krock |
ClientEnvironment::addActiveObject is what you need to check. there's an "id" parameter which originates from the server |
| 13:57 |
kilbith |
so I've got this: https://www.youtube.com/watch?v=DsGd1X9RlOE |
| 13:57 |
Krock |
however, the smoke puff is a bit special. it doesn't have a server ID |
| 13:57 |
kilbith |
the scene node (= the player) is picked through a raycast made up from the screen coordinates of a mouse click (note: irrlicht modification necessary) |
| 13:57 |
Krock |
what if it's a touch screen? they could point anywhere |
| 13:57 |
kilbith |
so basically (in gaming terms) you can left-click a player to select it, right-click to select a position on the map and the player would move to this target (exactly like in a RTS game) |
| 13:58 |
kilbith |
I'm not handling touch screen (and won't) |
| 13:58 |
rubenwardy |
Touchscreen fakes a mouse click |
| 13:58 |
Krock |
rubenwardy: but I believe the selection raycast differs |
| 13:59 |
rubenwardy |
By faking a mouse click |
| 13:59 |
rubenwardy |
Basically, it sets the position to where the user taps and emits an event |
| 13:59 |
Krock |
oh right. the desktop cursor is centered too, so that's at least consistent |
| 13:59 |
rubenwardy |
The selection raycast differs because the "mouse" position isn't necessarily centered |
| 14:00 |
rubenwardy |
Also, remember that we support touchscreen on desktop too |
| 14:01 |
rubenwardy |
Not that you'd want to use it |
| 14:01 |
rubenwardy |
Also, I imagine with a camera API you might allow unlocking the mouse on desktop too |
| 14:19 |
kilbith |
Krock: I'm thinking of another way around |
| 14:19 |
kilbith |
https://github.com/minetest/minetest/blob/master/src/client/content_cao.cpp#L769 |
| 14:19 |
kilbith |
all CAO are init with an of -1 (the third param (the ID) is always ignored) |
| 14:20 |
kilbith |
* with an ID of -1 |
| 14:20 |
kilbith |
so the idea is to add a 3rd param with the peer_id |
| 14:20 |
kilbith |
so I can get a peer ID from any ISceneNode |
| 14:27 |
kilbith |
do note that the raycast only can get a ISceneNode since it's in irrlicht |
| 14:31 |
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| 14:57 |
kilbith |
so the 3rd param is actually `m_id` and it does work |
| 15:11 |
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| 17:02 |
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| 17:08 |
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| 17:16 |
celeron55 |
https://github.com/minetest/minetest/pull/12690 |
| 17:16 |
celeron55 |
i'd like someone to test and confirm that this performs reasonably now |
| 17:17 |
celeron55 |
i'll clean it up a bit once it does |
| 17:30 |
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