2 commits

Author	SHA1	Message	Date
John McCardle	b7c5262abf	HeightMap: improve dig_hill/dig_bezier API clarity ... Rename parameters for clearer semantics: - dig_hill: depth -> target_height - dig_bezier: start_depth/end_depth -> start_height/end_height The libtcod "dig" functions set terrain TO a target height, not relative to current values. "target_height" makes this clearer. Also add warnings for likely user errors: - add_hill/dig_hill/dig_bezier with radius <= 0 (no-op) - smooth with iterations <= 0 already raises ValueError Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-01-11 22:21:58 -05:00
John McCardle	f2711e553f	HeightMap: add terrain generation methods (closes #195) ... Add seven terrain generation methods wrapping libtcod heightmap functions: - add_hill(center, radius, height): Add smooth hill - dig_hill(center, radius, depth): Dig crater (use negative depth) - add_voronoi(num_points, coefficients, seed): Voronoi-based features - mid_point_displacement(roughness, seed): Diamond-square terrain - rain_erosion(drops, erosion, sedimentation, seed): Erosion simulation - dig_bezier(points, start_radius, end_radius, start_depth, end_depth): Carve paths - smooth(iterations): Average neighboring cells All methods return self for chaining. Includes 24 unit tests. Note: dig_hill and dig_bezier use libtcod's "dig" semantics - use negative depth values to actually dig below current terrain level. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-01-11 22:00:08 -05:00