20 lines
1.1 KiB
Markdown
20 lines
1.1 KiB
Markdown
# Alien ships
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Source: `assets/Ships/alien_ship.jpg` (40 ships, 8 columns × 5 rows).
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`atlas.png` was prepared with the built-in ImageGen editor. Designs are adapted
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from the original sheet; ImageGen may redraw small details.
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Prompt: Remove the gray checkerboard and replace it with real transparent alpha;
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preserve all 40 dark alien ship designs, red/magenta colors, original ordering,
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and crisp silhouettes. Arrange exactly 8 columns × 5 rows with isolated craft,
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transparent margins, no text, no shadows, no background. Face ships upward.
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`extract_sprites.ps1` slices the returned atlas, trims transparent margins,
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corrects remaining sideways/downward orientations, and centers each sprite
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on a transparent 256 × 256 canvas with a maximum occupied dimension of 224.
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Run this PowerShell script to rebuild `alien_01.png` through `alien_40.png`.
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The catalog in `scripts/items/alien_ship_catalog.gd` is shared by the level
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generator and game. Each system selects one design using its level and seed.
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All enemy tiers use that design; elites retain their tint and bosses their size.
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