цикл день-ночь, кролики, кровавая луна

src/game/rabbits.ts

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+/** Number of rabbits present on the map by a given day. */
+export function rabbitsForDay(day: number): number {
+  return Math.max(0, 1 + Math.floor(day / 3));
+}
+
+/** How long a jump or strike action takes to play out. */
+export const RABBIT_ACTION_DURATION = 1;
+
+/** How long a rabbit pauses between actions (this is also when it decides its next one). */
+export const RABBIT_PAUSE_DURATION = 1;
+
+/** Max distance covered by a single jump. */
+export const RABBIT_JUMP_DISTANCE = 80;
+
+/** Peak height (px) of a jump's parabolic arc — same idea as a resource drop's arc when it flies
+ * off a chopped tree. */
+export const RABBIT_JUMP_ARC_HEIGHT = 30;
+
+/** By day, a rabbit won't choose a jump target closer than this to the character. */
+export const RABBIT_MIN_DISTANCE_FROM_CHARACTER = 130;
+
+/** How close the character must be, by night, for a rabbit to strike instead of jumping toward them. */
+export const RABBIT_STRIKE_RANGE = 28;
+
+/** How close the character must get to hit a rabbit. */
+export const RABBIT_HIT_RADIUS = 40;
+
+/** A rabbit's max HP (fixed — unlike the character's, there's no upgrade for it). */
+export const RABBIT_MAX_HP = 3;
+
+/** Damage dealt by a single completed strike (fixed — unlike the character's own attack damage,
+ * there's no upgrade for it). Multiple rabbits striking independently each deal this. */
+export const RABBIT_STRIKE_DAMAGE = 1;
+
+/** Random deviation (degrees, either side) from a direct line to the character for a night jump —
+ * "roughly toward" the character rather than a perfect beeline. */
+export const RABBIT_NIGHT_JUMP_SPREAD_DEGREES = 30;
+
+/** Coins a piece of meat is worth (fixed — unlike logs/twigs, there's no upgrade for it). */
+export const MEAT_VALUE = 5;
+
+/** Rabbits (and their strike/hit ranges) are this much bigger during a blood moon. */
+export const BLOOD_MOON_SIZE_MULTIPLIER = 2;