applications/magicciv
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

feat(city): ✨ Increase food consumption rate to 1.5 for improved biome-specific small city viability

Browse source 
Co-Authored-By: Lilith Autocommit <noreply@atlilith.com>
This commit is contained in:
autocommit 2026-04-15 01:13:36 -07:00
parent 0d59edd637
commit 2b0c1d55f5
1 changed files with 15 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
src/simulator/crates/mc-city/src/city.rs
View file

@ -99,8 +99,12 @@ impl TileYield {
}
}
/// Food consumed per citizen per turn (Civ5 standard).
pub const FOOD_PER_POP: f64 = 2.0;
/// Food consumed per citizen per turn. Tuned to 1.5 (below Civ5's 2.0) so
/// small cities (pop 2-3) in plains/hills-heavy biomes can still climb past
/// pop 3 on center yield + one mediocre food tile. With 4-food center:
/// pop 2 breakeven → +1.0 surplus; pop 3 deficit of −0.5 covered by any
/// 1-food tile; pop 4 needs two food tiles (still achievable).
pub const FOOD_PER_POP: f64 = 1.5;
/// Base city HP before population scaling.
pub const BASE_CITY_HP: u32 = 200;
@ -658,9 +662,9 @@ mod tests {
let mut city = City::found("Ironhold", (5, 5), true, 1);
city.population = 1;
// With no tile yields, city center gives 4 food.
// Surplus = 4.0 - 2.0*1 = 2.0
// Surplus = 4.0 - 1.5*1 = 2.5
let surplus = city.get_food_surplus(&[]);
assert!((surplus - 2.0).abs() < f64::EPSILON);
assert!((surplus - 2.5).abs() < f64::EPSILON);
}
#[test]
@ -673,18 +677,15 @@ mod tests {
let ty = vec![
TileYield { coord: (6, 5), food: 5.0, ..TileYield::default() },
];
// Surplus per turn: (4 + 5) - 2*1 = 7.0
// Surplus per turn: (4 + 5) - 1.5*1 = 7.5
// Threshold at pop 1: 15.0
// Turn 1: food_stored = 7
// Turn 1: food_stored = 7.5
assert_eq!(city.process_growth(&ty), 0);
assert_eq!(city.food_stored, 7.0);
// Turn 2: food_stored = 14
assert_eq!(city.process_growth(&ty), 0);
assert_eq!(city.food_stored, 14.0);
// Turn 3: food_stored = 21 >= 15 → grow, carry 6.0
assert_eq!(city.food_stored, 7.5);
// Turn 2: food_stored = 15.0 >= 15 → grow, carry 0
assert_eq!(city.process_growth(&ty), 1);
assert_eq!(city.population, 2);
assert_eq!(city.food_stored, 6.0); // 21 - 15 = 6
assert_eq!(city.food_stored, 0.0); // 15 - 15 = 0
}
#[test]
@ -692,8 +693,8 @@ mod tests {
let mut city = City::found("Ironhold", (5, 5), true, 1);
city.population = 3;
// No worked tiles beyond center → yields = 4 food
// Consumption = 2*3 = 6. Surplus = 4 - 6 = -2
// food_stored starts at 0, then 0 + (-3) = -3 < 0, pop > 1 → starve
// Consumption = 1.5*3 = 4.5. Surplus = 4 - 4.5 = -0.5
// food_stored: 0 + (-0.5) = -0.5 < 0, pop > 1 → starve
let ty: Vec<TileYield> = vec![];
assert_eq!(city.process_growth(&ty), -1);
assert_eq!(city.population, 2);