Initial commit

scripts/build_zone.gd

@@ -0,0 +1,57 @@
+@tool
+@warning_ignore_start("integer_division")
+
+## Class that helps to manage construction sites
+extends Marker2D
+
+class_name BuildZone
+
+const GRID_SIZE : Vector2 = Vector2(16,16)
+
+## Rect that used for bounds check and conversions
+@export var building_rect : Rect2:
+	set(value):
+		building_rect = value
+		if Engine.is_editor_hint():
+			queue_redraw()
+	get:
+		return building_rect
+
+func _draw() -> void:
+	if Engine.is_editor_hint() and EditorInterface.get_inspector().get_edited_object() == self:
+		draw_rect(building_rect,Color.CYAN,false,1)
+
+## Returns true if point (local coordinates) in rect, else return false
+func is_point_in_zone(point : Vector2) -> bool:
+	return building_rect.has_point(point)
+
+## Returns true if point (global coordinates) in rect, else return false
+func is_global_point_in_zone(point: Vector2) -> bool:
+	return is_point_in_zone(to_local(point))
+
+## Returns index of point (local coordinates) to be used in array
+func indexify_point(point : Vector2) -> int:
+	if is_point_in_zone(point) == false:
+		return -1
+	return int(point.x) / int(GRID_SIZE.x) + int(building_rect.size.x/GRID_SIZE.x)*(int(point.y) / int(GRID_SIZE.y))
+
+## Returns index of point (global coordinates) to be used in array
+func indexify_global_point(point : Vector2) -> int:
+	return indexify_point(to_local(point))
+
+## Inverses indexification of point, returning snapped position
+func inverse_index(index: int) -> Vector2:
+	return to_global(Vector2(index%int(building_rect.size.x/GRID_SIZE.x)*GRID_SIZE.x,index / int(building_rect.size.x/GRID_SIZE.x) * GRID_SIZE.y))
+
+## Returns snapped position of point (global coordinates).
+## Equivalent of [code]
+## inverse_index(indexify_global_point(point))
+## [/code]
+func get_placement_position(point : Vector2) -> Vector2:
+	if is_global_point_in_zone(point) == false:
+		return Vector2.ZERO
+	return to_global((to_local(point) / GRID_SIZE).floor()*GRID_SIZE + GRID_SIZE/2.0)
+
+## Returns capacity of building zone to be used in the array
+func get_capacity() -> int:
+	return int(building_rect.size.x/GRID_SIZE.x)*int(building_rect.size.y/GRID_SIZE.y)