basecost mathematics

[Twyster]

Well, I've run into another problem. At least this one is simple.

From here: http://newgrf-specs.tt-wiki.net/wiki/NM ... base_costs

Each cost in-game is determined by a fixed factor multiplied by a base cost. Setting base cost to 0 leaves this cost unchanged. Incrementing it by one doubles the cost, so e.g. a setting of 3 results in a cost that is 8x higher. Setting a negative value reduces the cost in the same manner, e.g. a value of -4 results in 1/16th of the cost. The minimum and maximum values are -8 (1/256th) and 16 (65536x), respectively.

From here: http://newgrf-specs.tt-wiki.net/wiki/NM ... grflocal-1

Code: Select all

Identifier            | Category         | Default value	
PR_BUILD_VEHICLE_ROAD | PR_BUILD_VEHICLE | 14000

I'm confused. Where does 14000 come into it? It can't be the base cost because a truck with "cost_factor: 10" is 410 pounds (the default currency). The math literally doesn't add up. What am I missing?

Thanks in advance!

[Eddi]

the formula is:

(base value) * 2^(base cost) / 2^16 * (difficulty factor) * (price factor)

14000 * 2^8 / 2^16 * 0.75 [low] * 10 = 410

difficulty factors for medium and high are 1 and 1.125, respectively.