forked from tas/major_tom
Extend moon level to 1000 tiles with wide platform gaps
Expand moon01.lvl from 200 to 1000 tiles using a Python generator script. The level features 27 gap sections with floating one-way platforms at varying heights, progressing from easy (8-tile gaps) to challenging (22-tile gaps with tiny platforms). 20 asteroids spread across the level. Increase tilemap line buffer from 1024 to 16384 bytes to support wide levels.
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Thomas
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tools/gen_moon_level.py
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200
tools/gen_moon_level.py
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#!/usr/bin/env python3
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"""Generate the 1000-tile-wide moon level.
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Layout philosophy:
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- Start with a flat landing zone (spacecraft intro)
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- Alternate between ground sections and wide chasms with floating platforms
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- Chasms get progressively wider / platforms more sparse as the level goes on
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- Moon gravity (300) gives ~20 tiles of full-jump horizontal range
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- Gaps are 8-18 tiles wide; platforms are 3-5 tiles wide at varying heights
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- Ground depth: rows 19-22 (surface at 19, bedrock fills below)
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- Total: 1000 x 23 tiles
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"""
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import random
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WIDTH = 1000
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HEIGHT = 23
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GROUND_ROW = 19 # top of ground surface
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SURFACE_ROWS = 3 # rows of ground below surface (19, 20, 21, 22 = index 19-22)
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random.seed(42) # reproducible
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# Tile IDs:
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# 0 = air
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# 1 = solid surface
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# 2 = solid surface variant (decorative, still solid)
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# 3 = solid surface variant (decorative, still solid)
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# 4 = one-way platform
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def make_empty_grid():
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return [[0] * WIDTH for _ in range(HEIGHT)]
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def place_ground(grid, col_start, col_end, row=GROUND_ROW):
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"""Fill ground from col_start to col_end (exclusive), from row down to bottom."""
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for r in range(row, HEIGHT):
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for c in range(col_start, min(col_end, WIDTH)):
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if r == row:
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grid[r][c] = 1
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elif r == row + 1:
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# second row: sprinkle variant tiles
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grid[r][c] = 2 if random.random() < 0.12 else 1
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else:
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# deep rows: more variant
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grid[r][c] = 3 if random.random() < 0.1 else 1
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def place_platform(grid, col_start, length, row):
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"""Place a one-way platform."""
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for c in range(col_start, min(col_start + length, WIDTH)):
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grid[row][c] = 4
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def generate_level():
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grid = make_empty_grid()
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entities = []
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# === Section 1: Landing zone (cols 0-30) ===
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place_ground(grid, 0, 30)
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entities.append(("spacecraft", 1, 14))
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# === Generate sections with gaps ===
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col = 30
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section = 0
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# Define gap/ground section patterns
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# (ground_len, gap_len, platform_configs)
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# platform_configs: list of (offset_into_gap, length, row)
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sections = [
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# Easy warmup: small gaps, generous platforms
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(15, 8, [(2, 4, 16)]),
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(12, 10, [(3, 3, 14)]),
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(14, 10, [(2, 3, 17), (6, 3, 15)]),
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# Getting harder: wider gaps
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(10, 14, [(3, 3, 15), (9, 3, 13)]),
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(12, 12, [(4, 4, 16)]),
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(8, 16, [(3, 3, 14), (8, 3, 17), (12, 3, 12)]),
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# Big chasms with platform chains
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(10, 18, [(2, 3, 16), (7, 3, 13), (13, 3, 16)]),
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(6, 14, [(3, 4, 15), (9, 3, 12)]),
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(12, 16, [(2, 3, 17), (7, 3, 14), (12, 3, 17)]),
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# Mid-level: varied terrain
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(20, 10, [(3, 3, 16)]),
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(8, 18, [(2, 3, 15), (8, 4, 12), (14, 3, 16)]),
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(15, 8, [(2, 3, 14)]),
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(6, 16, [(3, 3, 16), (9, 3, 13), (13, 3, 16)]),
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# Hard section: wide gaps, small platforms
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(8, 18, [(3, 3, 14), (9, 3, 17), (14, 2, 12)]),
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(10, 14, [(3, 3, 13), (8, 3, 16)]),
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(6, 18, [(2, 2, 16), (6, 3, 12), (11, 2, 16), (15, 2, 13)]),
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(12, 16, [(4, 3, 14), (10, 3, 17)]),
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# Staircase sections — platforms ascending/descending
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(10, 20, [(2, 3, 17), (6, 3, 15), (10, 3, 13), (14, 3, 11), (17, 3, 14)]),
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(8, 16, [(2, 3, 11), (6, 3, 13), (10, 3, 15), (13, 3, 17)]),
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# Very hard: sparse platforms over huge gaps
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(15, 18, [(4, 3, 14), (11, 2, 12)]),
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(6, 20, [(3, 3, 15), (8, 2, 12), (13, 3, 16), (17, 2, 13)]),
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(10, 16, [(3, 2, 13), (8, 3, 16), (13, 2, 11)]),
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# Climax: super wide with tiny platforms
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(8, 22, [(3, 2, 15), (8, 2, 12), (13, 2, 16), (18, 2, 13)]),
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(6, 18, [(3, 3, 14), (9, 2, 11), (14, 3, 16)]),
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(10, 20, [(2, 2, 16), (7, 3, 13), (12, 2, 10), (16, 3, 16)]),
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# Victory approach
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(12, 14, [(3, 3, 15), (9, 3, 13)]),
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(8, 10, [(3, 4, 16)]),
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]
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for ground_len, gap_len, platforms in sections:
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if col + ground_len + gap_len > WIDTH - 30:
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break
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# Place ground section
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place_ground(grid, col, col + ground_len)
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col += ground_len
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# Place platforms in the gap
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for p_offset, p_len, p_row in platforms:
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place_platform(grid, col + p_offset, p_len, p_row)
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col += gap_len
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section += 1
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# Fill remaining with ground to the exit
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end_ground_start = col
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place_ground(grid, end_ground_start, WIDTH)
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# === Asteroids: spread across the level, ~1 per 50 tiles in gap areas ===
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asteroid_cols = list(range(60, WIDTH - 40, 45))
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random.shuffle(asteroid_cols)
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asteroid_cols = sorted(asteroid_cols[:20]) # pick ~20, spread out
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for ac in asteroid_cols:
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ar = random.randint(0, 3)
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entities.append(("asteroid", ac, ar))
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# === Exit zone near the end ===
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exit_col = WIDTH - 4
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exit_row = GROUND_ROW - 2
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return grid, entities, exit_col, exit_row
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def write_level(filename):
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grid, entities, exit_col, exit_row = generate_level()
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lines = []
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lines.append("# Moon Surface - Landing")
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lines.append("# ======================")
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lines.append("# Extended moon level: wide chasms with floating platforms.")
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lines.append("# Pure jump-and-run intro with asteroid hazards. No gun.")
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lines.append("")
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lines.append("TILESET assets/tiles/moon_tileset.png")
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lines.append(f"SIZE {WIDTH} {HEIGHT}")
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lines.append("SPAWN 3 18")
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lines.append("GRAVITY 300")
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lines.append("BG_COLOR 5 5 15")
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lines.append("PARALLAX_STYLE 4")
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lines.append("MUSIC assets/sounds/algardalgar.ogg")
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lines.append("PLAYER_UNARMED")
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lines.append("")
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# Entities
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for etype, ex, ey in entities:
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lines.append(f"ENTITY {etype} {ex} {ey}")
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lines.append("")
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# Exit
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lines.append(f"EXIT {exit_col} {exit_row} 2 3 assets/levels/level01.lvl")
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lines.append("")
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# Tile definitions
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lines.append("# Tile definitions")
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lines.append("TILEDEF 1 0 0 1")
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lines.append("TILEDEF 2 1 0 1")
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lines.append("TILEDEF 3 2 0 1")
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lines.append("TILEDEF 4 0 1 2")
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lines.append("")
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# Collision layer
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lines.append("LAYER collision")
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for row in grid:
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lines.append(" ".join(str(t) for t in row))
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with open(filename, "w") as f:
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f.write("\n".join(lines) + "\n")
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# Print stats
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gap_tiles = sum(1 for r in range(HEIGHT) for c in range(WIDTH)
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if grid[GROUND_ROW][c] == 0 and grid[r][c] == 0)
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plat_count = sum(1 for r in range(HEIGHT) for c in range(WIDTH) if grid[r][c] == 4)
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print(f"Generated {filename}: {WIDTH}x{HEIGHT} tiles")
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print(f" Entities: {len(entities)}")
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print(f" Platforms: {plat_count} tiles")
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print(f" Ground surface gaps: {sum(1 for c in range(WIDTH) if grid[GROUND_ROW][c] == 0)} columns")
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if __name__ == "__main__":
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write_level("assets/levels/moon01.lvl")
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