Lighting experiments

internal/maps/desert.go

@@ -10,7 +10,8 @@ import (
 
 func CreateDesert(screenWidth, screenHeight float64) *Map {
 	m := NewMap("desert", 2, "Desert", screenWidth, screenHeight)
-	m.BackgroundColor = color.NRGBA{R: 155, G: 196, B: 215, A: 255}
+	m.BackgroundColor = color.NRGBA{R: 15, G: 20, B: 40, A: 255} // Dark blue night sky
+	m.TimeOfDay = Nighttime
 
 	// ground surface
 	m.World.AddSurface(&world.Surface{
@@ -22,6 +23,49 @@ func CreateDesert(screenWidth, screenHeight float64) *Map {
 		Color:  color.NRGBA{R: 139, G: 69, B: 19, A: 255},
 	})
 
+	// Platforms - sandy brown color
+	platformColor := color.NRGBA{R: 194, G: 134, B: 64, A: 255}
+
+	// Platform 1: Low left
+	m.World.AddSurface(&world.Surface{
+		X:      120,
+		Y:      screenHeight - 110,
+		Width:  140,
+		Height: 20,
+		Tag:    world.TagPlatform,
+		Color:  platformColor,
+	})
+
+	// Platform 2: Mid center-left
+	m.World.AddSurface(&world.Surface{
+		X:      320,
+		Y:      screenHeight - 180,
+		Width:  180,
+		Height: 20,
+		Tag:    world.TagPlatform,
+		Color:  platformColor,
+	})
+
+	// Platform 3: High center-right
+	m.World.AddSurface(&world.Surface{
+		X:      580,
+		Y:      screenHeight - 230,
+		Width:  160,
+		Height: 20,
+		Tag:    world.TagPlatform,
+		Color:  platformColor,
+	})
+
+	// Platform 4: Mid right
+	m.World.AddSurface(&world.Surface{
+		X:      720,
+		Y:      screenHeight - 140,
+		Width:  140,
+		Height: 20,
+		Tag:    world.TagPlatform,
+		Color:  platformColor,
+	})
+
 	// left portal to plains
 	leftPortal := portal.CreateSidePortal("desert_left", portal.SideLeft, screenWidth, screenHeight)
 	leftPortal.DestinationMap = "plains"

internal/maps/map.go

@@ -3,9 +3,16 @@ package maps
 import (
 	"image/color"
 
-	"github.com/hajimehoshi/ebiten/v2"
 	"github.com/atridad/LilGuy/internal/portal"
 	"github.com/atridad/LilGuy/internal/world"
+	"github.com/hajimehoshi/ebiten/v2"
+)
+
+type TimeOfDay string
+
+const (
+	Daytime   TimeOfDay = "day"
+	Nighttime TimeOfDay = "night"
 )
 
 type Map struct {
@@ -17,6 +24,7 @@ type Map struct {
 	World           *world.World
 	Portals         []*portal.Portal
 	BackgroundColor color.NRGBA
+	TimeOfDay       TimeOfDay // Day or Night tag
 
 	bakedImage *ebiten.Image
 }
@@ -31,6 +39,7 @@ func NewMap(id string, number int, displayName string, width, height float64) *M
 		World:           world.NewWorld(),
 		Portals:         make([]*portal.Portal, 0),
 		BackgroundColor: color.NRGBA{R: 135, G: 206, B: 235, A: 255},
+		TimeOfDay:       Daytime, // Default to daytime
 	}
 }
 

internal/maps/plains.go

@@ -11,6 +11,7 @@ import (
 func CreatePlains(screenWidth, screenHeight float64) *Map {
 	m := NewMap("plains", 1, "Plains", screenWidth, screenHeight)
 	m.BackgroundColor = color.NRGBA{R: 135, G: 206, B: 235, A: 255}
+	m.TimeOfDay = Daytime
 
 	// ground surface
 	groundColor := color.NRGBA{R: 34, G: 139, B: 34, A: 255}