Excavation starting

gui/activity_window_widgets/excavation_success_chance.gui

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+hbox = {
+	name = "excavation_success_chance"
+	spacing = 5
+
+	datacontext = "[ActivityWindow.GetActivity]"
+
+	visible = "[EqualTo_string( ActivityType.GetKey(), 'activity_excavation')]"
+
+	text_single = {
+		text = "excavation_success_bar"
+		align = nobaseline
+		max_width = 200
+	}
+
+	progressbar_standard = {
+		layoutpolicy_horizontal = expanding
+		size = { 200 30 }
+		value = "[Activity.MakeScope.Var( 'excavation_success_chance' ).GetValue]"
+		max = 100
+		min = 0
+
+		using = Progressbar_Changed_Animation
+
+		datacontext = "[GuiScope.SetRoot( Activity.MakeScope ).GetScriptValueBreakdown( 'excavation_success_chance_value' )]"
+		tooltip_visible = "[ValueBreakdown.HasTooltip]"
+
+		tooltipwidget = {
+			widget_value_breakdown_tooltip = {
+				datacontext = "[GuiScope.SetRoot( Activity.MakeScope ).GetScriptValueBreakdown( 'excavation_success_chance_value' )]"
+			}
+		}
+
+		marker = {
+			name = "current_value"
+			widget = {
+				icon = {
+					size = { 25 25 }
+					position = { -20 2 }
+					texture = "gfx/interface/progressbars/progressbar_center_glow.dds"
+					color = { 0.80 0.90 1 0.9 }
+				}
+			}
+		}
+	}
+}