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class_name Monument
var xform:Transform = Transform(Basis(),Vector3.ZERO)
var chunks = {}
var scene:PackedScene = null
var loaded_chunk = null
func is_chunk_in_monument(chunk_coords:Vector2):
return self.chunks.has(chunk_coords)
func _init(transform:Transform,bounds:Vector2,scn:PackedScene):
self.xform = transform
var origin = ChunkLoader.chunk_coords(ChunkLoader.v2_coords(self.xform.origin))
self.xform.origin.x = origin.x
self.xform.origin.z = origin.y
bounds /= 2.0
var bounding_box = []
bounding_box.push_back(ChunkLoader.v2_coords(self.xform.basis * Vector3(-bounds.x,0.0,-bounds.y)))
bounding_box.push_back(ChunkLoader.v2_coords(self.xform.basis * Vector3(bounds.x,0.0,-bounds.y)))
bounding_box.push_back(ChunkLoader.v2_coords(self.xform.basis * Vector3(bounds.x,0.0,bounds.y)))
bounding_box.push_back(ChunkLoader.v2_coords(self.xform.basis * Vector3(-bounds.x,0.0,bounds.y)))
var aabb = bounds
for b in bounding_box:
if b.x > aabb.x:
aabb.x = b.x
if b.y > aabb.y:
aabb.y = b.y
var chunk_size = ChunkLoader.world.chunk_size
aabb = ChunkLoader.chunk_coords(aabb)
for x in range(-aabb.x,aabb.x+chunk_size,chunk_size):
for y in range(-aabb.y,aabb.y+chunk_size,chunk_size):
var test_chunk = Vector2(x,y)
if _point_in_rect(test_chunk,bounding_box):
chunks[test_chunk+origin] = true
self.scene = scn
func _point_in_rect(point,rect):
var am = point - rect[0]
var ab = rect[1] - rect[0]
var ad = rect[3] - rect[0]
var am_dot_ab = am.dot(ab)
var ab_dot_ab = ab.dot(ab)
var am_dot_ad = am.dot(ad)
var ad_dot_ad = ad.dot(ad)
return 0 <= am_dot_ab && am_dot_ab <= ab_dot_ab && 0 <= am_dot_ad && am_dot_ad <= ad_dot_ad
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