[world]
height_tiles = 40
refund_percentage = 100
starting_building_blocks = 200
scrap_despawn_seconds = 120
scrap_per_threat = 0.25
tile_size_m = 10
belt_speed_mps = 20
tunnel_max_distance_tiles = 10
departure_interval_seconds = 20
orbit_factor = 0.8
rally_orbit_radius_tiles = 5.0
building_blocks_tooltip = "Building blocks are the currency for construction. Spend them to place buildings and to expand the asteroid. Produce building blocks in your factory and deliver them to the HQ on a belt to grow your stock."

[regions]
asteroid_width_tiles = 60
player_buffer_width_tiles = 20
contest_zone_width_tiles = 60
enemy_buffer_width_tiles = 20

[scroll]
# View pan speed (REQ-UI-SCROLL-SPEED): slow near the asteroid, fast across the
# contest zone, with a linear ramp of the given width straddling each boundary.
pan_speed_slow_tiles_per_second = 16.0
pan_speed_fast_tiles_per_second = 32.0
pan_ramp_band_width_tiles = 16

[expansion]
columns_per_expansion_tiles = 10
# x = expansions already purchased; ~1 per cycle mid-game, decelerating
# to 2-3 cycles late (docs/balancing/derived.md).
cost_building_blocks_formula = "300 + 50*x + 10*x*x"

[push]
push_expand_columns_tiles = 10
boss_advance_seconds = 60

[targeting]
target_score_formula      = "1 / (1 + x)"          # x = distance / max weapon range; higher = better, clamped to >=0
overclaim_penalty_formula = "max(0.5, 1 - 0.1*x)"  # x = competing claim count; multiplies score, clamped to [0,1]
target_hysteresis         = 0.40                   # keep current target unless a challenger beats it by >10%

[artifacts]
artifact_chance_formula = "0.05 * x"  # 5% chance per station level
artifact_win_count      = 5

[waves]
# Tuned against the factory-size curve (docs/balancing/targets.md, balancing
# targets): stays below the player's achievable military output early,
# crosses it around the late boundary (~cycle 15), overwhelms by ~24.
threat_rate_formula = "2*x + 0.15*x*x"
gap_min_seconds = 15
gap_max_seconds = 45
spawn_duration_seconds = 10
boss_countdown_seconds = 300
boss_threat_duration_seconds = 60
boss_quiet_before_seconds = 20
boss_quiet_after_seconds = 20