minecraft.wiki-mirror/wiki_backup/cave game tech test.txt

{{for|development history of this version|Cave game tech test/Development}}
{{unreleased}}
{{Infobox version
|title=Cave Game
|image=Cave game tech test.png
|name= Cave game tech test<ref name=video/><br>
Cave Game tech demo<ref name="tech demo">{{citation|url=https://web.archive.org/web/20210509000309/https://notch.tumblr.com/post/107315028/cave-game-tech-demo|title=Cave Game tech demo!|website=[[The Word of Notch]]|date=May 13, 2009}}</ref>
|edition = Java
|phase = pre-Classic
|date = May 10/11 – 13, 2009
|unreleased = true
|clientdl = Unavailable
|prefix = pre-Classic
|next = rd-132211
|no_protocol = 1
|no_data = 1
|no_java = 1
}}

A version officially referred to under the titles '''''Cave game tech test'''''&#8202;<ref name="video">{{ytl|F9t3FREAZ-k|Cave game tech test|([{{ytl|UMpv5kZ9-rE}} Archive]) Nizzotch|May 13, 2009}}</ref> or '''''Cave Game tech demo'''''<ref name="tech demo" /> is the earliest publicized unreleased version of what would become ''[[Minecraft]]''. It was made on May 13, 2009, between roughly 16:48<ref name="log">{{cite|url=https://web.archive.org/web/20140208190915/https://echelog.com/logs/browse/lwjgl/1242165600|title=lwjgl IRC logs|website=Echelog|date=May 13, 2009 (UTC+2)|quote=[18:48:38] <Notch_> I managed to force it to do as I want now. 72 fps, 288 chunk updates per second}}</ref> and 16:55 UTC.<ref name="8x8" /> This version was never released and may not have even been compiled. A video of the game at this time was recorded by [[Notch]] from around 17:00 UTC and uploaded at 17:36 on May 13.<ref>[[#lwjgl logs|LWJGL IRC Logs]]: "''[19:00:52] <Notch_> hmm, I wonder if I could make a vid of this''" [...] "''[19:14:02] <Notch_> haha, the video ended up at 1.05 GB''" [...] "''[19:15:36] <Notch_> well, this is annoying. I guess I have to recapture. Google has a limit of 2 gb''" [...] "''[19:36:42] <Notch_> upload complete, processing video''" [...] "''[19:50:18] <Notch_> ok, the quality is still crap until the processing finishes, but: http://www.youtube.com/watch?v=F9t3FREAZ-k''" </ref> It is the earliest known version of ''Minecraft'', or what was then known as ''Cave Game'', to have been recorded.

[[/Development|Development of the game]] started around May 10<ref>{{cite|url=http://www.minecraft.net/about.jsp|title=About the game|website=Minecraft|date=June  2009|archive-url=http://web.archive.org/web/20090615065538/http://www.minecraft.net/about.jsp}}</ref> or 11<ref name="11th">[https://archive.org/download/Rotab-Minecraft-IRC-logs Rotab's IRC logs] on Archive.org; #minecraft.20090525.log. May 25, 2009 (UTC+2). "''(10:40:09) <@Notch> heh, the game game tech test video is from the 13'th''"[...]"''(10:40:18) <@Notch> that was after two days of work, so I started the 11'th, probably''"</ref> to May 12 at the latest<ref>[[#lwjgl logs|LWJGL IRC Logs]] "''[13:34:09] <Notch> i was trying to narrow down a performance issue last night.''"</ref>, and continued up to May 13, 2009, adding the features that would be later seen in the ''Cave game tech test'' video.

== Features ==
=== Blocks ===
; [[File:Blank.png|32px]] [[Air]]
* Not listed as a block at this time.

; [[File:Grass Block JE1.png|32px]] [[Grass block]]
* Made with the same graphics from [[RubyDung]].
* Grass appears on fully lit tiles on the top 7 layers of the map. 

; [[File:Stone JE1.png|32px]] [[Stone]] 
* Made with the same graphics from Notch's game [[RubyDung]].
* Its texture at this time would later be repurposed for [[cobblestone]].

=== Non-mob entities ===
; [[Player]]
* Currently has no model.
* Has a height of 1.7 blocks.

=== World generation ===
; [[Chunk]]s
* Take about {{frac|1|10}} of a second to generate.<ref>[[#lwjgl logs|LWJGL IRC Logs]] "''[13:37:42] <Notch> rebuilding a chunk of these takes almost 100 ms, but that's everything, including tesselation, calculating lighting, and building the display list.''"</ref>
* The size of each chunk was 16×16 blocks.<ref>[[#lwjgl logs|LWJGL IRC Logs]] "''[13:37:08] <Notch> I've got chunks of blocks, 16x16x16 blocks. Each block can have a maximum of three quads, but that's worst case scenario''"</ref>
** Chunks are 16×16 blocks instead of 8×8 because 8×8 chunks decreased performance.<ref name="8x8">[[#lwjgl logs|LWJGL IRC Logs]]: "''[18:55:45] <Notch_> the chunk size is 16x16 now..''" [...] "''[18:56:47] <Notch_> 8x8 chunks are SLOWER''"</ref>
* Chunks are loaded in order of their proximity to the player.<ref>[[#lwjgl logs|LWJGL IRC Logs]]: "''[19:51:48] <Notch_> i'll update tiles chunks the player first, and force a full update upon game start''"</ref>
* The player spawns in a 256×64×256 tile map.
** The game takes 20 seconds to generate a 256×64×256 map.<ref>[[#lwjgl logs|LWJGL IRC Logs]]: "''[20:02:58] <Notch_> it takes like 20 seconds to grow a 256*256*64 map, though. :-\''"</ref>
* It was possible to fall out of the world, but it would not kill the player.

; [[Cave]]s
* Reached down until a few blocks before the last layer of cobblestone, making a ravine.

=== General ===
; [[Lighting]]
* The lighting engine in [[Java Edition Classic|Classic]] and [[Pre-Classic]] was simple, with only 2 light levels, bright and dark. "Sunlight" is emitted by the top edge of the map and hits any block that is under it, regardless of distance. It passes through transparent blocks to light blocks underneath. Blocks that do not receive light are in a dim shadow that remains at the same level of brightness no matter how far they are from a light source. Blocks which are darkened also have a layer of thick, black fog applied to them, appearing darker when looked at from further distances.{{verify|type=change|edition=java|How is the light level 'dark' prior to Indev has the luminance value of?}} This caused weird visual glitches.

; [[Creative|Creative mode]]
* This was an extremely basic version of it. The player could not fly or place/remove blocks and there was no inventory or hotbar to get them from.

; [[Respawning]]
* The player can respawn by pressing {{Keys|R}}, teleporting them to the world they were in.{{more info|Was this added in this version? maybe}}

== Video ==
;Original
{{video note|All videos from [[Nizzotch]], [[Notch]]'s YouTube channel, have been region-locked in all countries, but there is an archive of the video available for all countries.|nocat}}
{{yt|F9t3FREAZ-k}}
;Archive
{{yt|UMpv5kZ9-rE}}

== Gallery ==
<gallery>
A cave.png|A cave.
Cave Game chunk loading.png|Chunks are loaded very slowly in this version.
Cave Game falling.png
Cave Game R pressed.png
How it Started.jpg
</gallery>

== References ==
* {{anchor|lwjgl logs}} {{cite|url=https://web.archive.org/web/20140208190915/http://echelog.com/logs/browse/lwjgl/1242165600|title=lwjgl IRC logs|website=Echelog|date=May 13, 2009 (UTC+2)}}
* {{anchor|irc logs}} [https://archive.org/download/Rotab-Minecraft-IRC-logs Rotab's IRC logs] on Archive.org; #minecraft.20090525.log. May 25, 2009 (UTC+2)
{{reflist}}

== Navigation ==
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