Add ancient serif UI font

scripts/scenes/battle_scene.gd

@@ -32,6 +32,8 @@ const SFX_SKILL_CAST_PATH := "res://audio/sfx/skill_cast_01.wav"
 const SFX_SLASH_PATH := "res://audio/sfx/slash_01.wav"
 const SFX_UI_CLICK_PATH := "res://audio/sfx/ui_click_01.wav"
 const SFX_VICTORY_STING_PATH := "res://audio/sfx/victory_sting_01.wav"
+const UI_FONT_REGULAR_PATH := "res://art/ui/fonts/GowunBatang-Regular.ttf"
+const UI_FONT_BOLD_PATH := "res://art/ui/fonts/GowunBatang-Bold.ttf"
 const BGM_VOLUME_DB := -14.0
 const SFX_VOLUME_DB := -4.0
 const UI_SFX_VOLUME_DB := -8.0
@@ -118,6 +120,7 @@ var mission_title_label: Label
 var mission_detail_label: Label
 var objective_notice_panel: PanelContainer
 var objective_notice_label: Label
+var ui_root_control: Control
 var hud_unit_portrait_panel: PanelContainer
 var hud_unit_portrait_texture: TextureRect
 var hud_unit_portrait_label: Label
@@ -236,6 +239,8 @@ var unit_motion_by_unit: Dictionary = {}
 var unit_action_motion_by_unit: Dictionary = {}
 var battle_background_path := ""
 var battle_background_texture: Texture2D
+var ui_regular_font: Font
+var ui_bold_font: Font
 
 
 func _ready() -> void:
@@ -431,6 +436,60 @@ func _make_button_style(fill: Color, border: Color, border_width: int) -> StyleB
 	return style
 
 
+func _ui_font(bold: bool = false) -> Font:
+	if bold:
+		if ui_bold_font == null:
+			ui_bold_font = _load_ui_font(UI_FONT_BOLD_PATH)
+		return ui_bold_font
+	if ui_regular_font == null:
+		ui_regular_font = _load_ui_font(UI_FONT_REGULAR_PATH)
+	return ui_regular_font
+
+
+func _load_ui_font(font_path: String) -> Font:
+	if font_path.is_empty():
+		return null
+	if ResourceLoader.exists(font_path):
+		var resource := ResourceLoader.load(font_path)
+		if resource is Font:
+			return resource as Font
+	var font := FontFile.new()
+	if font.load_dynamic_font(font_path) != OK:
+		return null
+	return font
+
+
+func _make_ui_theme() -> Theme:
+	var theme := Theme.new()
+	var regular := _ui_font(false)
+	if regular != null:
+		theme.default_font = regular
+		theme.set_font("normal_font", "RichTextLabel", regular)
+		theme.set_font("italics_font", "RichTextLabel", regular)
+		theme.set_font("mono_font", "RichTextLabel", regular)
+	var bold := _ui_font(true)
+	if bold != null:
+		theme.set_font("bold_font", "RichTextLabel", bold)
+		theme.set_font("bold_italics_font", "RichTextLabel", bold)
+	return theme
+
+
+func _draw_ui_font(bold: bool = false) -> Font:
+	var font := _ui_font(bold)
+	if font != null:
+		return font
+	return ThemeDB.fallback_font
+
+
+func _apply_control_font(control: Control, bold: bool = false) -> void:
+	if control == null:
+		return
+	var font := _ui_font(bold)
+	if font == null:
+		return
+	control.add_theme_font_override("font", font)
+
+
 func _apply_button_style(button: Button, important: bool = false) -> void:
 	if button == null:
 		return
@@ -447,6 +506,7 @@ func _apply_button_style(button: Button, important: bool = false) -> void:
 	button.add_theme_color_override("font_pressed_color", UI_PARCHMENT_TEXT)
 	button.add_theme_color_override("font_focus_color", UI_PARCHMENT_TEXT)
 	button.add_theme_color_override("font_disabled_color", UI_DISABLED_TEXT)
+	_apply_control_font(button, important)
 
 
 func _apply_label_style(label: Label, font_color: Color, font_size: int = 0) -> void:
@@ -455,6 +515,7 @@ func _apply_label_style(label: Label, font_color: Color, font_size: int = 0) ->
 	label.add_theme_color_override("font_color", font_color)
 	if font_size > 0:
 		label.add_theme_font_size_override("font_size", font_size)
+	_apply_control_font(label, font_size >= 16)
 
 
 func _make_separator(width: float = 0.0, height: float = 2.0) -> ColorRect:
@@ -545,6 +606,8 @@ func _create_hud() -> void:
 	add_child(layer)
 
 	var root := Control.new()
+	ui_root_control = root
+	root.theme = _make_ui_theme()
 	root.set_anchors_preset(Control.PRESET_FULL_RECT)
 	root.mouse_filter = Control.MOUSE_FILTER_IGNORE
 	layer.add_child(root)
@@ -2199,7 +2262,7 @@ func _draw_overlays() -> void:
 
 
 func _draw_units() -> void:
-	var font := ThemeDB.fallback_font
+	var font := _draw_ui_font()
 	for unit in state.units:
 		if not unit.get("alive", false) or not unit.get("deployed", true):
 			continue
@@ -2243,7 +2306,7 @@ func _draw_units() -> void:
 func _draw_target_selection_markers() -> void:
 	if not _is_targeting_mode():
 		return
-	var font := ThemeDB.fallback_font
+	var font := _draw_ui_font(true)
 	for marker in _target_selection_marker_entries():
 		var cell: Vector2i = marker.get("cell", Vector2i(-1, -1))
 		if not state.is_inside(cell):
@@ -2391,7 +2454,7 @@ func _draw_unit_class_badge(rect: Rect2, unit: Dictionary, team_color: Color) ->
 	var badge_rect := Rect2(rect.position + Vector2(5, 5), Vector2(28, 13))
 	draw_rect(badge_rect, Color(0.02, 0.022, 0.026, 0.82))
 	draw_rect(badge_rect, team_color.lightened(0.18), false, 1.2)
-	var font := ThemeDB.fallback_font
+	var font := _draw_ui_font(true)
 	draw_string(font, badge_rect.position + Vector2(1, 11), _unit_class_abbrev(unit), HORIZONTAL_ALIGNMENT_CENTER, badge_rect.size.x - 2, 8, Color.WHITE)
 
 
@@ -2741,7 +2804,7 @@ func _draw_action_impact_cue(cue: String, start: Vector2, end: Vector2, progress
 func _draw_floating_texts() -> void:
 	if floating_texts.is_empty():
 		return
-	var font := ThemeDB.fallback_font
+	var font := _draw_ui_font(true)
 	for popup in floating_texts:
 		var duration: float = maxf(0.01, float(popup.get("duration", FLOATING_TEXT_LIFETIME)))
 		var age := float(popup.get("age", 0.0))
@@ -2808,7 +2871,7 @@ func _draw_target_preview_badge() -> void:
 	var kind := str(badge.get("kind", ""))
 	var color := _target_preview_badge_color(kind)
 	var background := Color(0.025, 0.028, 0.034, 0.88)
-	var font := ThemeDB.fallback_font
+	var font := _draw_ui_font(true)
 	var text := str(badge.get("text", ""))
 
 	draw_rect(badge_rect, background)