48 lines
1.2 KiB
GDScript
48 lines
1.2 KiB
GDScript
class_name FogOfWar extends Node
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@export var visual:bool = true
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@export var width:int = 20
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@export var height:int = 20
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var size:int:
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get: return width*height
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var faction:Faction:
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get: return get_parent() as Faction
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var grid:Array[bool] = []
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func _ready() -> void:
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if not visual: $FogOfWarVisual.queue_free()
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generate_new_grid()
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visualize_grid()
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func _on_tick() -> void:
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update_fog_of_war()
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visualize_grid()
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func generate_new_grid()->void:
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grid.resize(size)
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for i in range(size):
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grid[i] = true
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func visualize_grid()->void:
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if not has_node("FogOfWarVisual"): return
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var fog_of_war_visual := $FogOfWarVisual as GridMap
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for i in range(size):
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var item := 0 if grid[i] else -1
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fog_of_war_visual.set_cell_item(c2p(i2c(i)), item)
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func update_fog_of_war()->void:
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var entities := faction.buildings + faction.units
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for i in range(size):
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grid[i] = grid[i] and not entities.map(
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func(entity:Node3D)->bool:
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return entity.position.distance_squared_to(c2p(i2c(i))) < 10
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).has(true)
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# Converters from coordinates to index values
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func c2i(coor:Vector2i)->int: return coor.x+coor.y*width
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func i2c(index:int)->Vector2i: return Vector2i(index%width, index/width)
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func c2p(coor:Vector2i)->Vector3i: return Vector3i(coor.x-width/2, 0, coor.y-height/2)
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