Move tile_accent / tile_style rendering helpers into a render module

.github/workflows/test.yml

@@ -33,6 +33,12 @@ jobs:
           chmod +x .tools/Godot_v${{ steps.godot-config.outputs.version }}-${{ steps.godot-config.outputs.status }}_linux.x86_64
           ./.tools/Godot_v${{ steps.godot-config.outputs.version }}-${{ steps.godot-config.outputs.status }}_linux.x86_64 --version
 
+      - name: Install Godot system dependencies
+        shell: bash
+        run: |
+          set -euo pipefail
+          sudo apt-get update && sudo apt-get install -y libfontconfig1
+
       - name: Run headless smoke test
         shell: bash
         run: |

scripts/main.gd

@@ -16,6 +16,7 @@ const GoalProgression := preload("res://scripts/goal_progression.gd")
 const GoalReward := preload("res://scripts/goal_reward.gd")
 const RESOURCE_TRENDS := Constants.RESOURCE_TRENDS
 const ColonyStance := preload("res://scripts/colony_stance.gd")
+const TileRender := preload("res://scripts/tile_render.gd")
 
 
 @onready var world_grid: GridContainer = %WorldGrid
@@ -2245,39 +2246,29 @@ func worker_texture(name: String, frame: int, carrying: String = "") -> Texture2
 	worker_texture_cache[cache_key] = texture
 	return texture
 
+## Delegates to TileRender.tile_style, passing scene state via context.
 func tile_style(tile: Dictionary, pos: Vector2i) -> StyleBoxFlat:
-	var style := StyleBoxFlat.new()
-	style.corner_radius_top_left = 8
-	style.corner_radius_top_right = 8
-	style.corner_radius_bottom_right = 8
-	style.corner_radius_bottom_left = 8
-	style.border_width_left = 2
-	style.border_width_top = 2
-	style.border_width_right = 2
-	style.border_width_bottom = 2
-	style.content_margin_left = 4
-	style.content_margin_top = 3
-	style.content_margin_right = 4
-	style.content_margin_bottom = 3
-	var kind := "stockpile" if pos == stockpile_pos else String(tile.kind)
-	style.bg_color = TILE_BACKDROPS.get(kind, Color("#1b2128"))
-	style.border_color = tile_accent(tile, pos)
-	style.shadow_color = Color(0, 0, 0, 0.25)
-	style.shadow_size = 2
-	return style
+	var accent := tile_accent(tile, pos)
+	var render_theme := {
+		"TILE_BACKDROPS": TILE_BACKDROPS,
+		"stockpile_pos": stockpile_pos,
+	}
+	return TileRender.tile_style(tile, pos, render_theme, accent)
+
 
+## Delegates to TileRender.tile_accent, passing scene state via context.
 func tile_accent(tile: Dictionary, pos: Vector2i) -> Color:
-	if not pending_build_kind.is_empty() and pos == hovered_tile_pos():
-		return Color("#73d38c") if can_place_at(pos, pending_build_kind) else Color("#d36b6b")
-	if pos == stockpile_pos:
-		return Color("#d4b36f")
-	if RESOURCE_COLORS.has(String(tile.resource)):
-		return RESOURCE_COLORS[String(tile.resource)]
-	if STRUCTURE_COLORS.has(String(tile.kind)):
-		return STRUCTURE_COLORS[String(tile.kind)]
-	if String(tile.kind) == "foundation":
-		return Color("#c7a25e")
-	return Color(1, 1, 1, 0.35)
+	var ctx := {
+		"pending_build_kind": pending_build_kind,
+		"hover_pos": hovered_tile_pos(),
+		"stockpile_pos": stockpile_pos,
+		"can_place_fn": can_place_at,
+	}
+	var render_theme := {
+		"RESOURCE_COLORS": RESOURCE_COLORS,
+		"STRUCTURE_COLORS": STRUCTURE_COLORS,
+	}
+	return TileRender.tile_accent(tile, pos, ctx, render_theme)
 
 func task_name(worker: Dictionary) -> String:
 	if int(worker.get("break_ticks", 0)) > 0:

scripts/tile_render.gd

@@ -0,0 +1,70 @@
+## Pure tile rendering helpers — no scene references, fully testable.
+## Consumes constants from constants.gd and a context dict from the caller.
+
+class_name TileRender
+
+
+## Returns a StyleBoxFlat for the given tile using the provided theme.
+## `theme` must contain TILE_BACKDROPS (Dictionary of kind → Color).
+static func tile_style(tile: Dictionary, pos: Vector2i, theme: Dictionary, accent_color: Color) -> StyleBoxFlat:
+	var style := StyleBoxFlat.new()
+	style.corner_radius_top_left = 8
+	style.corner_radius_top_right = 8
+	style.corner_radius_bottom_right = 8
+	style.corner_radius_bottom_left = 8
+	style.border_width_left = 2
+	style.border_width_top = 2
+	style.border_width_right = 2
+	style.border_width_bottom = 2
+	style.content_margin_left = 4
+	style.content_margin_top = 3
+	style.content_margin_right = 4
+	style.content_margin_bottom = 3
+
+	var kind := String(tile.kind)
+	if theme.has("stockpile_pos") and pos == theme["stockpile_pos"]:
+		kind = "stockpile"
+
+	style.bg_color = theme.get("TILE_BACKDROPS", {}).get(kind, Color("#1b2128"))
+	style.border_color = accent_color
+	style.shadow_color = Color(0, 0, 0, 0.25)
+	style.shadow_size = 2
+	return style
+
+
+## Returns the accent (border) color for a tile based on context.
+## `context` must contain:
+##   - pending_build_kind: String (empty when not placing)
+##   - hover_pos: Vector2i (-1, -1 when no hover)
+##   - stockpile_pos: Vector2i
+##   - can_place_fn: Callable(pos: Vector2i, kind: String) -> bool
+## `theme` must contain RESOURCE_COLORS and STRUCTURE_COLORS (from constants.gd).
+static func tile_accent(tile: Dictionary, pos: Vector2i, context: Dictionary, theme: Dictionary) -> Color:
+	var pending_build_kind: String = String(context.get("pending_build_kind", ""))
+	var hover_pos: Vector2i = Vector2i(context.get("hover_pos", Vector2i(-1, -1)))
+	var stockpile_pos: Vector2i = Vector2i(context.get("stockpile_pos", Vector2i(-1, -1)))
+	var can_place_fn: Callable = context.get("can_place_fn", func(_p: Vector2i, _k: String): return false)
+
+	# Build placement highlight
+	if not pending_build_kind.is_empty() and pos == hover_pos:
+		return Color("#73d38c") if can_place_fn.call(pos, pending_build_kind) else Color("#d36b6b")
+
+	# Stockpile accent
+	if pos == stockpile_pos:
+		return Color("#d4b36f")
+
+	# Resource accent
+	var resource_colors: Dictionary = theme.get("RESOURCE_COLORS", {})
+	if resource_colors.has(String(tile.resource)):
+		return resource_colors[String(tile.resource)]
+
+	# Structure accent
+	var structure_colors: Dictionary = theme.get("STRUCTURE_COLORS", {})
+	if structure_colors.has(String(tile.kind)):
+		return structure_colors[String(tile.kind)]
+
+	# Foundation accent
+	if String(tile.kind) == "foundation":
+		return Color("#c7a25e")
+
+	return Color(1, 1, 1, 0.35)

smoke.log

@@ -0,0 +1,3 @@
+Fontconfig error: Cannot load default config file: No such file: (null)
+Godot Engine v4.2.2.stable.official.15073afe3 - https://godotengine.org
+

smoke_ci.log

@@ -0,0 +1,3 @@
+libfontconfig.so.1: cannot open shared object file: No such file or directory
+Godot Engine v4.2.2.stable.official.15073afe3 - https://godotengine.org
+