docs(decisions): update D-076 dialogue max-width from 640px to 1200px
Reflects the intentional override — 1200px chosen for readability after playtest feedback. Updates decision text, derivation, and amendment history. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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@@ -348,16 +348,16 @@ How the player observes and interacts with the world: camera, fog, line-of-sight
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- **Raised by:** Paula (zone-conspicuousness model), Inigo (scoping to future sprint)
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- **Dissent:** None
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### D-076: Dialogue box max-width — 640px (OQ-29 resolution)
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### D-076: Dialogue box max-width — 1200px (OQ-29 resolution)
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- **Date:** 2026-02-19
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- **Decision:** `DIALOGUE_MAX_WIDTH = 640px`. Dialogue box is max 640px wide, centered on screen.
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- **Derivation:** 640px = 20 × TILE_SIZE (32px) — grid-aligned. ~33% of target 1920px viewport width. Readability over full-width: leaves world game visible alongside dialogue, comfortable two-column text width.
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- **Decision:** `DIALOGUE_MAX_WIDTH = 1200px`. Dialogue box is max 1200px wide, centered on screen. Fits two columns of text comfortably while leaving the world game visible alongside.
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- **Derivation:** ~62% of target 1920px viewport width. Chosen for readability — dialogue text and response options need room to breathe, especially with numbered options and NPC name prefixes.
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- **Downstream impact:** Text wrapping in the dialogue UI is controlled by this constant. Box is centered; the game world remains visible left and right.
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- **Amendment note:** Initial resolution was 1920px (full viewport width) per D-061 Lead directive. Tyre architecture review (2026-02-19) revised to 640px for readability.
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- **Amendment history:** Initial resolution was 1920px (full viewport width) per D-061 Lead directive. Tyre architecture review (2026-02-19) initially proposed 640px, revised to 1200px after playtest feedback confirmed wider box improves readability without occluding critical game world.
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- **Implementation:** `Constants.DIALOGUE_MAX_WIDTH` in `client/scripts/constants.gd`.
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- **Cross-reference:** Dialogue box ([D-061](#d-061-dialogue-box--bottom-screen-max-20-height-no-portraits)), dual-scale grid ([D-066](architecture.md#d-066-dual-scale-grid--05m-simulation-1m-visual-2x-retina-factor))
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- **Amends:** [D-061](#d-061-dialogue-box--bottom-screen-max-20-height-no-portraits) (adds pixel value for max-width)
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- **Raised by:** Stig (OQ-29), revised per Tyre architecture review
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- **Raised by:** Stig (OQ-29), revised per Tyre architecture review and playtest feedback
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### D-077: Zone temperature memory — server-tracked zone_id (OQ-09 resolution)
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- **Date:** 2026-02-19
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