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Newcomers AppGameKit Corner / BatVinks multiplayer code

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jlahtinen
14
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Joined: 26th Oct 2009
Location: Finland
Posted: 18th Feb 2016 20:41
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https://www.thegamecreators.com/pages/newsletters/newsletter_issue_147.html#5

So, this is great, but sending strings is quite useless. So if I convert this to send floats, how the receiving end is going to get them? Allow me to give example:


If host sends x#=153.5, is the client going to see x#=153.5 or just the 153.5 ?
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BatVink
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Joined: 4th Apr 2003
Location: Gods own County, UK
Posted: 19th Feb 2016 09:22
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You can make up the message from any number of parameters of any type. You can send a package of many pieces of data, of all types. Just make sure for every add, you do a get, e.g

AddNetworkMessageFloat(msgId, 123.45)
AddNetworkMessageString(msgId, "Hello World")
..
x# = GetNetworkMessageFloat(msgId)
text$ = GetNetworkMessageString(msgId)

Each one is received into a variable of the correct type.
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Quidquid latine dictum sit, altum sonatur
TutCity is being rebuilt
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jlahtinen
14
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Joined: 26th Oct 2009
Location: Finland
Posted: 19th Feb 2016 16:07
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Yeah, so it would be best to send like this:

Example, player coordinates X,Y

send string "players X"
send float x#
send string "players Y"
send float y#

so the receiving end can get those in the right order?

Like sending bunch of floats, the client has to receive them at the same order as host sends them?



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BatVink
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Joined: 4th Apr 2003
Location: Gods own County, UK
Posted: 19th Feb 2016 17:12 Edited at: 19th Feb 2016 17:13
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Yes that's right.

I organise it by always starting by sending a 3 character string. This tells me what I am going to receive. For example:

"MOV" - character movement. Receive a character ID (Integer) followed by 3 floats (X,Y,Z)

AddNetworkMessageString(msgId, "MOV")
AddNetworkMessageInteger(msgId, myCharacter.id)
AddNetworkMessageFloat(msgId, myCharacter.x)
AddNetworkMessageFloat(msgId, myCharacter.y)
AddNetworkMessageFloat(msgId, myCharacter.z)
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Quidquid latine dictum sit, altum sonatur
TutCity is being rebuilt
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jlahtinen
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Joined: 26th Oct 2009
Location: Finland
Posted: 19th Feb 2016 19:24
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Gotcha. Thanks.
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