Tutorial:TNT cannons/efficiency

Higher efficiency allows cannons to be more compact, lag-friendly and faster if they are loaded manually.

Propulsion and velocity

Some cannons use other methods than TNT (ie. slime blocks, water, wind charges...) to accelerate TNT but this section is about propulsion from TNT explosions.

In general the following rules apply:

Propulsion is increased by adding propellants and reducing the distance between the propellant's explosion centre and the TNT's position (for many other entities the eyes are used instead of the position). Disregarding some exploits that involve the world's origin the maximum acceleration per propellant is one block per tick.

Propulsion is decreased, if the projectiles rebound, when different propellants cancel each other's motion, when exposure sample rays are obstructed, or when propellants slide on the ground.

Using every projectile

It is worth looking out for which projectiles can be removed and where other projectiles can be added. More projectiles often lead to a worse cannon. Scatter cannons and statics are known to be quite inefficient.

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