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52 lines
1.6 KiB
52 lines
1.6 KiB
extends GridMap
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export(int) var ChunkWidth: int = 0
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export(int) var ChunkHeight: int = 0
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var heightMapTexture = NoiseTexture.new()
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onready var player = $Player
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func _ready():
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randomize()
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heightMapTexture.width = 512
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heightMapTexture.height = 512
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heightMapTexture.noise = OpenSimplexNoise.new()
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heightMapTexture.noise.seed = randi()
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print("Seed: " + str(heightMapTexture.noise.seed))
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setGridChunk(0, ChunkWidth, 0, ChunkHeight)
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func generateGridChunk(playerPos: Vector3) -> void:
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clear()
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var chunkCenter = world_to_map(playerPos)
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var rowStart: float = chunkCenter.z - (ChunkHeight / 2)
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var rowEnd: float = chunkCenter.z + (ChunkHeight / 2)
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var columnStart: float = chunkCenter.x - (ChunkWidth / 2)
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var columnEnd: float = chunkCenter.x + (ChunkWidth / 2)
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setGridChunk(columnStart, columnEnd, rowStart, rowEnd)
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func setGridChunk(columnStart: float, columnEnd: float, rowStart: float, rowEnd: float) -> void:
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if columnStart < 0 :
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columnStart = 0
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if rowStart < 0 :
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rowStart = 0
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if columnEnd > heightMapTexture.width :
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columnEnd = heightMapTexture.width - 1
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if rowEnd > heightMapTexture.height :
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rowEnd = heightMapTexture.height - 1
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for mz in range(rowStart, rowEnd):
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for mx in range(columnStart, columnEnd):
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var noiseValue: float = heightMapTexture.noise.get_noise_2d(mx, mz)
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var weight: float = (noiseValue + 1) / 2
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var height: float = floor(lerp(0, 8, weight)) * 2
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for my in range(0, height):
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var meshID = floor(my / 2)
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set_cell_item(mx, my * 2, mz, meshID, 0)
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func _on_MapUpdateTimer_timeout():
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generateGridChunk(player.global_transform.origin)
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