6 Commits

Author	SHA1	Message	Date
ctan	8774e51a12	fix(rules): cover grants a Reflex-save bonus against area effects (SRD cover.md 'Cover and Reflex Saves': +2 vs standard cover - half the AC value, so +1 partial/+2 standard/+4 improved; soft cover grants none) - _area_save adds terrain cover//2 from the effect's point of origin (burst center, caster square for cone/line) to Reflex rolls; resolve_save gains an explicit flat_bonus	2026-09-19 14:16:26 +02:00
ctan	948edc1815	fix(rules): bursts cannot affect creatures in total cover from the point of origin (SRD aiming-a-spell.md: a burst "can't affect creatures with total cover from its point of origin (in other words, its effects don't extend around corners)"; Line of Effect: a burst affects only what it has LoE to from its origin) - _area_creatures skips creatures whose occupied cells have no line of effect from the burst center	2026-09-19 14:08:24 +02:00
ctan	389e160627	fix(rules): cones require line of effect from their origin (SRD aiming-a-spell.md: a cone 'affects only an area, creature, or object to which it has line of effect from its origin') - cone_cells drops geometrically-inside cells without corner-to-corner LoE from the caster square; line/cone barrier-cell semantics aligned (both templates include the barrier square the effect strikes, exclude everything behind it)	2026-09-19 14:04:34 +02:00
ctan	5250763c35	fix(rules): line spells stop at a line-of-effect barrier (SRD aiming-a-spell.md: a line 'extends to the limit of its range or until it strikes a barrier that blocks line of effect') - line_cells truncates at the first blocks_los cell, creatures behind a solid wall are never caught	2026-09-19 13:54:25 +02:00
ctan	642f449b9e	fix(rules): exclude the caster from a line spell's area ... CRB Magic - Aiming a Spell: a line 'starts from any corner of your square', so the caster's own square is outside the template (SRD Lightning Bolt: 'The bolt begins at your fingertips' - it leaves the square, it does not fill it). line_cells now drops the origin and takes the length_cells squares beyond it; a degenerate aim affects nothing. Updated the Lightning Bolt and Line Sparks tests (caster no longer caught) and the README. Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>	2026-09-13 11:30:30 +02:00
ctan	4659fae9f6	feat(rules): support cone and line spell areas ... AreaEffect gains shape: burst|cone|line (CRB Magic - Aiming a Spell). Cones (90 deg, length = radius_ft) and lines (5 ft wide, Bresenham ray) originate at the caster's cell and are aimed at the resolved target or the U7b point-cast center; bursts are unchanged. Shared per-creature save + SR application; the observation area dict already exposes the shape. Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>	2026-09-13 10:32:37 +02:00