URL:
<http://gna.org/bugs/?25432>
Summary: Terrain bonus of last one digit is round downed.
(e.g. 25% -> 20%)
Project: Freeciv
Submitted by: cazfi
Submitted on: Thu 12 Jan 2017 10:40:12 PM EET
Category: general
Severity: 3 - Normal
Priority: 5 - Normal
Status: None
Assigned to: None
Originator Email:
Open/Closed: Open
Release: 2.5.6
Discussion Lock: Any
Operating System: None
Planned Release:
Contains string changes: None
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Details:
From http://freeciv.wikia.com/wiki/Forum:Some_tiny_issues :
According to common\combat.c get_defense_power:
if (uclass_has_flag(unit_class(punit), UCF_TERRAIN_DEFENSE)) {
db = 10 + tile_terrain(ptile)->defense_bonus / 10;
power = (power * db) / 10;
}
since all variables is int, so terrain bonus of last one digit is round down,
so ignored. (e.g. civ2civ3 forest 25% terrain bonus is actually 20%)
I tried Freeciv 2.5.6 gtk+2 with -d 3 option and see internal combat
attack/defense strength when combat occur, and round downed. (civ2civ3 green
phalanx internal defense strength in forest is 24, not 25)
Following functions have defense bonus / 10 relations:
server\advisors\advgoto.c adv_danger_at
server\advisors\advgoto.c chance_killed_at
common\combat.c get_defense_power
common\combat.c get_virtual_defense_power
ai\default\aisettler.c defense_bonus
ai\default\aiunit.c dai_consider_tile_dangerous
(ai\default\aiparatrooper.c find_best_tile_to_paradrop_to) <- it is AI value
weighting for paradropping to target tile, so there is no relation
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