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MegaMek / megameklab

MegaMekLab is a BattleTech unit modification program. It allows creating and modifying all unit types available in MegaMek from Support Vehicles up to WarShips. It also allows printing record sheets for single or multiple units.
http://www.megamek.org
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0.45.2 Quad Protomech engine weight #223

Closed Maingunnery closed 6 years ago

Maingunnery commented 6 years ago

I tried to create an 15 ton, 3/5 Quad ProtoMech, when I noticed that the engine weight wasn't being correctly calculated.

It seems like the program calculates the engine weight of Bipeds and Quadruped identically, however quads use a different engine weight calculation, see IO page 101.

Environment

megameklab-windows-0.45.2

snrdg102417 commented 6 years ago

Hello Maingunnery,

IIRC the application is primarily geared to the TM in which ProtoMechs, TM p. 82, cannot be constructed as quadrupeds (quads).

Tom Rux

On November 22, 2018 at 2:41 PM Maingunnery notifications@github.com wrote:

I tried to create an 15 ton, 3/5 Quad ProtoMech, when I noticed that the engine weight wasn't being correctly calculated.

It seems like the program calculates the engine weight of Bipeds and Quadruped identically, however quads use a different engine weight calculation, see IO page 101.

Environment

megameklab-windows-0.45.2

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neoancient commented 6 years ago

The problem appears to be that it does not refresh the weight summaries when the configuration changes. If you change to 4 MP then back to 3 you will see the smaller engine weight. But there seems to be a rounding bug there, as a 3/5 quad has an engine rating of 45, and being less than 50 the weight is ER x 250 kg, which is 11,250 kg but it's showing 1,000.

neoancient commented 6 years ago

Actually scratch that bit about the rounding. I was working from memory. The master 250 kg x engine rating is for ratings below 40, so the 1000 kg is correct. It's just a matter of forcing a recalculaton when the configuration changes.

Maingunnery commented 6 years ago

little side note: The below 40 calculations use 25 kg x rating, not 250 kg x rating, 250 kg is the weight for heat sinks.