sneak
63d1e797e2
Replace .golangci.yml with the shared canonical config. The old config's top-level linters-settings block was silently ignored under the v2 schema, so the lll/funlen/cyclop/dupl thresholds now actually apply. The four repo-specific disables (mnd, exhaustive, paralleltest, testpackage) move out of the config into targeted in-code nolint directives carrying their original approval dates, keeping the config byte-identical to the canonical one. Fixes surfaced by the stricter settings: t.Parallel() added to all 32 tests, 24 overlong lines wrapped or their comments tightened, tcell control-code returns rewritten as character literals, dupl markers on the identically-shaped item data tables, and two wsl_v5 defer cuddles. No behavior changes. The repo has no golangci-lint version pin (no Dockerfile or CI; make lint runs the host binary, currently v2.12.2), so there was nothing to bump.
57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
//nolint:mnd // C-faithful literals; names hurt C-greppability (approved 2026-07-07)
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package game
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// Rng is the original Rogue linear congruential generator. The C RN macro is
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//
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// #define RN (((seed = seed*11109+13849) >> 16) & 0xffff)
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//
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// with `seed` a C int; Seed is int32 so the multiplication wraps exactly the
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// way 32-bit C arithmetic does. A given seed therefore produces the same
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// dungeon as the C game.
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type Rng struct {
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Seed int32
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}
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// Rnd picks a very random number in [0, rng) (main.c rnd).
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func (r *Rng) Rnd(rng int) int {
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if rng == 0 {
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return 0
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}
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v := r.next()
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if v < 0 {
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v = -v
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}
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return v % rng
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}
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// Roll rolls a number of dice (main.c roll).
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func (r *Rng) Roll(number, sides int) int {
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dtotal := 0
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for ; number > 0; number-- {
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dtotal += r.Rnd(sides) + 1
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}
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return dtotal
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}
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// next steps the generator and returns the next raw value (the RN macro).
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func (r *Rng) next() int {
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r.Seed = r.Seed*11109 + 13849
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return int(r.Seed>>16) & 0xffff
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}
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// rnd is the ported code's spelling of C rnd(): every call site in the C
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// sources reads rnd(x), and keeping that shape makes cross-checking easy.
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func (g *RogueGame) rnd(rng int) int { return g.Rng.Rnd(rng) }
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// roll is C roll().
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func (g *RogueGame) roll(number, sides int) int { return g.Rng.Roll(number, sides) }
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// spread gives a fuzzy number centered on nm (misc.c spread).
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func (g *RogueGame) spread(nm int) int {
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return nm - nm/20 + g.rnd(nm/10)
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}
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