Fixed trees spawning on road

main.go

@@ -144,7 +144,7 @@ func main() {
 			}
 		}
 
-		treePixels = GenerateTrees(finalImage, allWaterPixels, settings.MinTreeSize, settings.MaxTreeSize, settings.TreeCoverage, settings.TreeClumpiness, settings.Seed)
+		treePixels = GenerateTrees(finalImage, allWaterPixels, roadPixels, settings.MinTreeSize, settings.MaxTreeSize, settings.TreeCoverage, settings.TreeClumpiness, settings.Seed)
 
 		darkenedHeightmap := DarkenLakeAreas(noiseImg, allWaterPixels)
 
@@ -451,7 +451,7 @@ func main() {
 				progressBar.SetText(fmt.Sprintf("Step %d/%d: Generating Trees", currentStep, steps))
 				progressBar.SetValue(float64(currentStep) / float64(steps))
 			})
-			treePixels = GenerateTrees(finalImage, allWaterPixels, settings.MinTreeSize, settings.MaxTreeSize, settings.TreeCoverage, settings.TreeClumpiness, settings.Seed)
+			treePixels = GenerateTrees(finalImage, allWaterPixels, roadPixels, settings.MinTreeSize, settings.MaxTreeSize, settings.TreeCoverage, settings.TreeClumpiness, settings.Seed)
 
 			// Step 8: Finalizing Images
 			currentStep++

terrain.go

@@ -85,7 +85,7 @@ func DarkenLakeAreas(heightmap image.Image, lakePixels []image.Point) image.Imag
 	return composite
 }
 
-func GenerateTrees(img *image.RGBA, lakePixels []image.Point, minTreeSize, maxTreeSize, treeCoverage, treeClumpiness float64, seed int64) []image.Point {
+func GenerateTrees(img *image.RGBA, lakePixels, roadPixels []image.Point, minTreeSize, maxTreeSize, treeCoverage, treeClumpiness float64, seed int64) []image.Point {
 	width := img.Bounds().Dx()
 	height := img.Bounds().Dy()
 
@@ -124,6 +124,11 @@ func GenerateTrees(img *image.RGBA, lakePixels []image.Point, minTreeSize, maxTr
 		isLake[p] = true
 	}
 
+	isRoad := make(map[image.Point]bool)
+	for _, p := range roadPixels {
+		isRoad[p] = true
+	}
+
 	randSrc := rand.New(rand.NewSource(seed))
 
 	// 3. Determine initial clump trees
@@ -133,7 +138,7 @@ func GenerateTrees(img *image.RGBA, lakePixels []image.Point, minTreeSize, maxTr
 	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] {
+			if treeNoiseMap.GrayAt(p.X, p.Y).Y >= threshold && !isLake[p] && !isRoad[p] {
 				initialPoints = append(initialPoints, p)
 				break
 			}
@@ -143,7 +148,7 @@ func GenerateTrees(img *image.RGBA, lakePixels []image.Point, minTreeSize, maxTr
 	// 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]
+		return treeNoiseMap.GrayAt(p.X, p.Y).Y >= threshold && !isLake[p] && !isRoad[p]
 	}, seed)
 
 	var treePixels []image.Point
@@ -158,7 +163,7 @@ func GenerateTrees(img *image.RGBA, lakePixels []image.Point, minTreeSize, maxTr
 		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] {
+				if !pt.In(img.Bounds()) || isLake[pt] || isRoad[pt] {
 					continue
 				}