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Expand the map calls to help with debugging

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Eryn Wells 2018-11-10 17:42:42 -05:00
parent 47df42c8e5
commit 63cad2404c
1 changed files with 8 additions and 2 deletions
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10
Terrain2/Algorithms.swift
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@ -254,14 +254,20 @@ public class DiamondSquareGenerator: TerrainGenerator {
grid.breadthFirstSearch { (box: Box) in
// 1. Diamond step. Find the midpoint of the square defined by `box` and set its value.
let midpoint = box.midpoint
let cornerValues = box.corners.map { heightMap[self.convert(pointToIndex: $0)] }
let cornerValues = box.corners.map { (pt: Point) -> Float in
let idx = self.convert(pointToIndex: pt)
return heightMap[idx]
}
let midpointValue = Float.random(in: 0...1) + self.average(ofPoints: cornerValues)
heightMap[convert(pointToIndex: midpoint)] = midpointValue
// 2. Square step. For each of the side midpoints of this box, compute its value.
for pt in box.sideMidpoints {
let corners = diamondCorners(forPoint: pt, diamondSize: box.size)
let cornerValues = corners.map { heightMap[self.convert(pointToIndex: $0)] }
let cornerValues = corners.map { (pt: Point) -> Float in
let idx = self.convert(pointToIndex: pt)
return heightMap[idx]
}
let ptValue = Float.random(in: 0...1) + self.average(ofPoints: cornerValues)
heightMap[convert(pointToIndex: pt)] = ptValue
}