ChineseTechnicalMinecraftCollector | [redberd] My TNTs can turn around the corner —TNT movement explanation + application examples @chinesetechnicalminecraftc4605 | Uploaded July 2020 | Updated October 2024, 1 hour ago.
Designed by: redberd
Publish Date: 2020-02-04
Original video: bilibili.com/video/BV1F7411W782
Author's channel: space.bilibili.com/51038845
Reupload by: hiback
We have got permission to reupload this video on youtube

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[Original description translate]
We found a strange phenomenon. Multiple TNTs (TNT activated one by one) with completely overlapping coordinates will fly randomly in the air due to explosions. At first I thought that the coordinates were not well calibrated, so I used the command block to generate TNT with the same coordinates, but it still flew randomly. Later, according to the relevant code of TNT, the reason of TNT flying randomly was researched.

Since TNT entities are calculated one by one, and each calculation is first movement and then explosion, the TNT that is ignited first will be travel a certain distance before exploding, so it will push other TNT back. The direction of the thrust is opposite to the direction of the speed, and the magnitude is constant (in the case of low TNT speed*).

Using this "TNT push back" feature, TNT can turn around corner in the air, or continuously pushed upwards, so that a multi-TNT tunnel bore can be made to blow up a larger range of blocks. Prior to this, xmzztyl had made a double TNT tunnel bore, but did not explain why TNT turn around corner in the air. Dingdi has made triple TNT tunnel bore using gravity block stacking in the Bedrock Edition, which has achieved TNT's "self-accelerate", but he has not explained why TNT will fly into the sky by itself. This video explains the mechanism of TNT movement and how to use this mechanism to control the flight trajectory of TNT.

Thanks for TIS members' discussion and research.

恩氟烷瑞's research:
bilibili.com/video/av9224610
xmzztyl's tunnel bore:
bilibili.com/video/av83321917
xmzztyl & Flowerstarry_sky's tunnel bore:
bilibili.com/video/av83321917
Dingdi's tunnel bore (MCBE):
bilibili.com/video/av84854526

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