Grimsace/RPG_City_Maker_Reborn
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basic building generation

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Grimsace
2026-02-05 15:11:55 -06:00
parent 0793ba6ade
commit 84d6e99201
4 changed files with 331 additions and 66 deletions
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terrain.go
+9 -4
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@@ -151,7 +151,7 @@ func FlattenRoadAreas(heightmap image.Image, roadPixels []image.Point) image.Ima
return composite
}
func GenerateTrees(img *image.RGBA, lakePixels, roadPixels []image.Point, minTreeSize, maxTreeSize, treeCoverage, treeClumpiness float64, seed int64) []image.Point {
func GenerateTrees(img *image.RGBA, lakePixels, roadPixels, buildingPixels []image.Point, minTreeSize, maxTreeSize, treeCoverage, treeClumpiness float64, seed int64) []image.Point {
width := img.Bounds().Dx()
height := img.Bounds().Dy()
@@ -195,6 +195,11 @@ func GenerateTrees(img *image.RGBA, lakePixels, roadPixels []image.Point, minTre
isRoad[p] = true
}
isBuilding := make(map[image.Point]bool)
for _, p := range buildingPixels {
isBuilding[p] = true
}
randSrc := rand.New(rand.NewSource(seed))
// 3. Determine initial clump trees
@@ -204,7 +209,7 @@ func GenerateTrees(img *image.RGBA, lakePixels, roadPixels []image.Point, minTre
for range numClumpTrees {
for range 100 { // try 100 times to find a valid spot
p := image.Point{X: randSrc.Intn(width), Y: randSrc.Intn(height)}
if treeNoiseMap.GrayAt(p.X, p.Y).Y >= threshold && !isLake[p] && !isRoad[p] {
if treeNoiseMap.GrayAt(p.X, p.Y).Y >= threshold && !isLake[p] && !isRoad[p] && !isBuilding[p] {
initialPoints = append(initialPoints, p)
break
}
@@ -214,7 +219,7 @@ func GenerateTrees(img *image.RGBA, lakePixels, roadPixels []image.Point, minTre
// 4. Place remaining trees using Bridson's Algorithm
minRadius := minTreeSize
allPoints := poissonDiscSampling(width, height, minRadius, 30, initialPoints, func(p image.Point) bool {
return treeNoiseMap.GrayAt(p.X, p.Y).Y >= threshold && !isLake[p] && !isRoad[p]
return treeNoiseMap.GrayAt(p.X, p.Y).Y >= threshold && !isLake[p] && !isRoad[p] && !isBuilding[p]
}, seed)
var treePixels []image.Point
@@ -252,7 +257,7 @@ func GenerateTrees(img *image.RGBA, lakePixels, roadPixels []image.Point, minTre
for y := p.Y - int(r); y <= p.Y+int(r); y++ {
for x := p.X - int(r); x <= p.X+int(r); x++ {
pt := image.Point{X: x, Y: y}
if !pt.In(img.Bounds()) || isLake[pt] || isRoad[pt] {
if !pt.In(img.Bounds()) || isLake[pt] || isRoad[pt] || isBuilding[pt] {
continue
}