added mixed building generation

buildings.go

@@ -118,7 +118,11 @@ func GenerateBuildings(img *image.RGBA, width, height int, settings *Settings, r
 
 			// Attempt to create a building at the selected center
 			size := settings.MinBuildingSize + randSrc.Float64()*(settings.MaxBuildingSize-settings.MinBuildingSize)
-			pixels, ok := getBuildingPixels(center, size, settings.BuildingShape, isWater, isRoad, isBuilding, width, height, randSrc)
+			shape := settings.BuildingShape
+			if shape == "mixed" {
+				shape = chooseShape(randSrc, settings.BuildingShapeRatios)
+			}
+			pixels, ok := getBuildingPixels(center, size, shape, isWater, isRoad, isBuilding, width, height, randSrc)
 			if ok {
 				// If successful, draw the building and update data structures
 				for _, p := range pixels {
@@ -134,6 +138,32 @@ func GenerateBuildings(img *image.RGBA, width, height int, settings *Settings, r
 	return buildingPixels
 }
 
+// chooseShape selects a building shape based on the provided ratios.
+func chooseShape(randSrc *rand.Rand, ratios map[string]float64) string {
+	// Create a slice of shapes and their cumulative weights
+	var shapes []string
+	var weights []float64
+	var cumulativeWeight float64
+	for shape, weight := range ratios {
+		shapes = append(shapes, shape)
+		cumulativeWeight += weight
+		weights = append(weights, cumulativeWeight)
+	}
+
+	// Generate a random number between 0 and the total weight
+	randNum := randSrc.Float64() * cumulativeWeight
+
+	// Find the shape corresponding to the random number
+	for i, weight := range weights {
+		if randNum < weight {
+			return shapes[i]
+		}
+	}
+
+	// Default to the first shape if something goes wrong
+	return shapes[0]
+}
+
 // getBuildingPixels determines the pixels for a single building based on its shape and checks for collisions.
 func getBuildingPixels(center image.Point, size float64, shape string, isWater, isRoad, isBuilding map[image.Point]bool, width, height int, randSrc *rand.Rand) ([]image.Point, bool) {
 	var pixels []image.Point

main.go

@@ -650,11 +650,147 @@ func main() {
 	buildingDistributionSlider.SetValue(settings.BuildingDistribution)
 
 	buildingShapeLabel := widget.NewLabel("Building Shape:")
-	buildingShapeSelect := widget.NewSelect([]string{"squares", "circles", "rectangles"}, func(s string) {
+	buildingShapeSelect := widget.NewSelect([]string{"squares", "circles", "rectangles", "mixed"}, func(s string) {
 		settings.BuildingShape = s
 	})
 	buildingShapeSelect.SetSelected(settings.BuildingShape)
 
+	// Create sliders for building shape ratios (visible only when "mixed" is selected)
+	squareRatioSlider := widget.NewSlider(0, 100)
+	circleRatioSlider := widget.NewSlider(0, 100)
+	rectangleRatioSlider := widget.NewSlider(0, 100)
+
+	squareRatioLabel := widget.NewLabel(fmt.Sprintf("Squares: %.0f%%", settings.BuildingShapeRatios["squares"]))
+	circleRatioLabel := widget.NewLabel(fmt.Sprintf("Circles: %.0f%%", settings.BuildingShapeRatios["circles"]))
+	rectangleRatioLabel := widget.NewLabel(fmt.Sprintf("Rectangles: %.0f%%", settings.BuildingShapeRatios["rectangles"]))
+
+	squareRatioSlider.SetValue(settings.BuildingShapeRatios["squares"])
+	circleRatioSlider.SetValue(settings.BuildingShapeRatios["circles"])
+	rectangleRatioSlider.SetValue(settings.BuildingShapeRatios["rectangles"])
+
+	ratioContainer := container.NewVBox(
+		squareRatioLabel,
+		squareRatioSlider,
+		circleRatioLabel,
+		circleRatioSlider,
+		rectangleRatioLabel,
+		rectangleRatioSlider,
+	)
+
+	updateRatioSliders := func() {
+		squareRatioSlider.SetValue(settings.BuildingShapeRatios["squares"])
+		circleRatioSlider.SetValue(settings.BuildingShapeRatios["circles"])
+		rectangleRatioSlider.SetValue(settings.BuildingShapeRatios["rectangles"])
+		squareRatioLabel.SetText(fmt.Sprintf("Squares: %.0f%%", settings.BuildingShapeRatios["squares"]))
+		circleRatioLabel.SetText(fmt.Sprintf("Circles: %.0f%%", settings.BuildingShapeRatios["circles"]))
+		rectangleRatioLabel.SetText(fmt.Sprintf("Rectangles: %.0f%%", settings.BuildingShapeRatios["rectangles"]))
+	}
+
+	squareRatioSlider.OnChanged = func(val float64) {
+		if settings.BuildingShape != "mixed" {
+			return
+		}
+		oldVal := settings.BuildingShapeRatios["squares"]
+		diff := val - oldVal
+		settings.BuildingShapeRatios["squares"] = val
+		settings.BuildingShapeRatios["circles"] -= diff / 2
+		settings.BuildingShapeRatios["rectangles"] -= diff / 2
+
+		// Clamp values to 0-100 range
+		if settings.BuildingShapeRatios["circles"] < 0 {
+			settings.BuildingShapeRatios["rectangles"] += settings.BuildingShapeRatios["circles"]
+			settings.BuildingShapeRatios["circles"] = 0
+		}
+		if settings.BuildingShapeRatios["rectangles"] < 0 {
+			settings.BuildingShapeRatios["circles"] += settings.BuildingShapeRatios["rectangles"]
+			settings.BuildingShapeRatios["rectangles"] = 0
+		}
+		if settings.BuildingShapeRatios["circles"] > 100 {
+			settings.BuildingShapeRatios["rectangles"] += settings.BuildingShapeRatios["circles"] - 100
+			settings.BuildingShapeRatios["circles"] = 100
+		}
+		if settings.BuildingShapeRatios["rectangles"] > 100 {
+			settings.BuildingShapeRatios["circles"] += settings.BuildingShapeRatios["rectangles"] - 100
+			settings.BuildingShapeRatios["rectangles"] = 100
+		}
+
+		updateRatioSliders()
+	}
+
+	circleRatioSlider.OnChanged = func(val float64) {
+		if settings.BuildingShape != "mixed" {
+			return
+		}
+		oldVal := settings.BuildingShapeRatios["circles"]
+		diff := val - oldVal
+		settings.BuildingShapeRatios["circles"] = val
+		settings.BuildingShapeRatios["squares"] -= diff / 2
+		settings.BuildingShapeRatios["rectangles"] -= diff / 2
+		// Clamp values to 0-100 range
+		if settings.BuildingShapeRatios["squares"] < 0 {
+			settings.BuildingShapeRatios["rectangles"] += settings.BuildingShapeRatios["squares"]
+			settings.BuildingShapeRatios["squares"] = 0
+		}
+		if settings.BuildingShapeRatios["rectangles"] < 0 {
+			settings.BuildingShapeRatios["squares"] += settings.BuildingShapeRatios["rectangles"]
+			settings.BuildingShapeRatios["rectangles"] = 0
+		}
+		if settings.BuildingShapeRatios["squares"] > 100 {
+			settings.BuildingShapeRatios["rectangles"] += settings.BuildingShapeRatios["squares"] - 100
+			settings.BuildingShapeRatios["squares"] = 100
+		}
+		if settings.BuildingShapeRatios["rectangles"] > 100 {
+			settings.BuildingShapeRatios["squares"] += settings.BuildingShapeRatios["rectangles"] - 100
+			settings.BuildingShapeRatios["rectangles"] = 100
+		}
+
+		updateRatioSliders()
+	}
+
+	rectangleRatioSlider.OnChanged = func(val float64) {
+		if settings.BuildingShape != "mixed" {
+			return
+		}
+		oldVal := settings.BuildingShapeRatios["rectangles"]
+		diff := val - oldVal
+		settings.BuildingShapeRatios["rectangles"] = val
+		settings.BuildingShapeRatios["squares"] -= diff / 2
+		settings.BuildingShapeRatios["circles"] -= diff / 2
+
+		// Clamp values to 0-100 range
+		if settings.BuildingShapeRatios["squares"] < 0 {
+			settings.BuildingShapeRatios["circles"] += settings.BuildingShapeRatios["squares"]
+			settings.BuildingShapeRatios["squares"] = 0
+		}
+		if settings.BuildingShapeRatios["circles"] < 0 {
+			settings.BuildingShapeRatios["squares"] += settings.BuildingShapeRatios["circles"]
+			settings.BuildingShapeRatios["circles"] = 0
+		}
+		if settings.BuildingShapeRatios["squares"] > 100 {
+			settings.BuildingShapeRatios["circles"] += settings.BuildingShapeRatios["squares"] - 100
+			settings.BuildingShapeRatios["squares"] = 100
+		}
+		if settings.BuildingShapeRatios["circles"] > 100 {
+			settings.BuildingShapeRatios["squares"] += settings.BuildingShapeRatios["circles"] - 100
+			settings.BuildingShapeRatios["circles"] = 100
+		}
+
+		updateRatioSliders()
+	}
+
+	buildingShapeSelect.OnChanged = func(s string) {
+		settings.BuildingShape = s
+		if s == "mixed" {
+			ratioContainer.Show()
+		} else {
+			ratioContainer.Hide()
+		}
+	}
+	// Initial visibility check
+	if settings.BuildingShape != "mixed" {
+		ratioContainer.Hide()
+	}
+
 	buildingsTab := container.NewTabItem("Buildings", container.NewVBox(
 		numBuildingsLabel,
 		numBuildingsSlider,
@@ -666,6 +802,7 @@ func main() {
 		buildingDistributionSlider,
 		buildingShapeLabel,
 		buildingShapeSelect,
+		ratioContainer,
 	))
 
 	imageTab := container.NewTabItem("Image", container.NewVBox(

settings.go

@@ -45,6 +45,9 @@ type Settings struct {
 	BuildingDistribution float64 `json:"building_distribution"`
 	BuildingShape        string  `json:"building_shape"`
 
+	// Ratios for mixed building shapes
+	BuildingShapeRatios map[string]float64 `json:"building_shape_ratios"`
+
 	// General settings
 	Seed           int64  `json:"seed"`
 	LastExportPath string `json:"last_export_path"`
@@ -123,8 +126,13 @@ func LoadSettings() (*Settings, error) {
 				MinBuildingSize:      10,
 				MaxBuildingSize:      30,
 				BuildingDistribution: 20,
-				BuildingShape:        "squares",
+				BuildingShape:        "mixed",
-				LastExportPath:       homeDir,
+				BuildingShapeRatios: map[string]float64{
+					"squares":    40,
+					"circles":    30,
+					"rectangles": 30,
+				},
+				LastExportPath: homeDir,
 			}, nil
 		}
 		return nil, err
@@ -138,6 +146,15 @@ func LoadSettings() (*Settings, error) {
 		return nil, err
 	}
 
+	// Ensure BuildingShapeRatios is initialized
+	if settings.BuildingShapeRatios == nil {
+		settings.BuildingShapeRatios = map[string]float64{
+			"squares":    40,
+			"circles":    30,
+			"rectangles": 30,
+		}
+	}
+
 	// Ensure LastExportPath is set to a default value if it's empty
 	if settings.LastExportPath == "" {
 		homeDir, err := os.UserHomeDir()