Sam SungandClaude Opus 5.5
9c32e5126e
Part of #92, for `benilla-ui`, `benilla-world` and `benilla-formats`. - 88 string literals drop private record and bug numbers, the dates of private incidents, and the workspace's name for the maintainer. They are assert and panic texts, log and printout lines, the `--` comments of the Lua prelude and of test fixtures, and one Lua assert. Each keeps its fact in its own words. - Two test names lose their numbers: `burning_steppes_lava_builds_a_magma_surface_at_the_reported_pin` and `join_channel_by_name_answers_the_row_custom_and_nil_legs`. - A test-only event, `B271_PROBE`, is now `ERROR_PROBE` in the two crates that register and fire it. A fixture's error text in `benilla-app`'s `ui_script` tests drops its bug number, together with the assertion that reads it. - Doc comments that named a client function by a disassembler's label (`FUN_0068a830`) now give its address, in `benilla-formats`, `benilla-assets` and one `benilla-app` file. - Every literal change keeps each literal's line count, proven with comments stripped and every literal masked. The two renamed tests differ only in their names. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
60 lines
2.2 KiB
Rust
60 lines
2.2 KiB
Rust
//! The WMO interior minimap tile grid: how one group's footprint splits into the
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//! `<wmo>_<group>_<X>_<Y>.blp` tiles the client streams inside a building (tile producer
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//! `0x6a5270`). Each tile is a power-of-two texel square clamped to 32..256 px at 0.5 yd a texel,
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//! and both roundings go up: the round-to-int (`0x73fdf5`) runs round-toward-+∞, so the edge
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//! is `2^ceil(log2(extent·2))` px and the count `ceil(extent / 128)`.
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/// World yards per minimap texel (`0xca7ebc`).
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pub const YD_PER_TEXEL: f32 = 0.5;
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/// The tile edge clamp in texels; a full 256 px tile spans 128 yd.
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const MIN_TILE_PX: u32 = 32;
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const MAX_TILE_PX: u32 = 256;
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/// World yards a full tile spans, the divisor of the tile count.
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const TILE_SPAN_YD: f32 = MAX_TILE_PX as f32 * YD_PER_TEXEL;
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/// One axis of a group's footprint `extent` (yd) as `(tile_count, tile_world)`: the tiles across
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/// it and the yards each one covers.
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pub fn group_axis_grid(extent: f32) -> (u32, f32) {
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let texels = (extent / YD_PER_TEXEL).max(1.0);
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let px = next_pow2(texels.ceil() as u32).clamp(MIN_TILE_PX, MAX_TILE_PX);
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let tile_world = px as f32 * YD_PER_TEXEL;
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let count = (extent / TILE_SPAN_YD).ceil().max(1.0) as u32;
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(count, tile_world)
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}
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/// Smallest power of two `>= n` (with `next_pow2(0) == 1`).
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fn next_pow2(n: u32) -> u32 {
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if n <= 1 {
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1
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} else {
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1u32 << (32 - (n - 1).leading_zeros())
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn next_pow2_rounds_up() {
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assert_eq!(next_pow2(1), 1);
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assert_eq!(next_pow2(41), 64);
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assert_eq!(next_pow2(64), 64);
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assert_eq!(next_pow2(65), 128);
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assert_eq!(next_pow2(372), 512);
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}
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#[test]
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fn grid_counts_and_sizes_match_ironforge_footprints() {
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// Extents (yd) of Ironforge groups 1, 44 (X, Y), 66 and 89 (X, Y); counts from the trs.
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assert_eq!(group_axis_grid(20.6), (1, 32.0));
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assert_eq!(group_axis_grid(51.3), (1, 64.0));
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assert_eq!(group_axis_grid(201.0), (2, 128.0));
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assert_eq!(group_axis_grid(185.6), (2, 128.0));
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assert_eq!(group_axis_grid(128.4).0, 2);
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assert_eq!(group_axis_grid(107.7).0, 1);
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}
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}
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