diff --git a/TODO b/TODO
index 9fd682b..1f32df6 100644
--- a/TODO
+++ b/TODO
@@ -15,6 +15,9 @@ Basics:
         advanced:
         - ai
         - dijkstra maps
+Tech:
+    - make context great again
+
 
 Assets and i18n:
     - move tile settings to json, generate from there (part of prefabs)
@@ -53,4 +56,5 @@ Combat:
 
 Quest engine:
     - look at parsers like URQL etc
-    - distorted Aschenputtel story / partisans / rapist prince / Grey Mountains
\ No newline at end of file
+    - distorted Aschenputtel story / partisans / rapist prince / Grey Mountains
+
diff --git a/cmd/game/main.go b/cmd/game/main.go
index d03ae72..507b696 100644
--- a/cmd/game/main.go
+++ b/cmd/game/main.go
@@ -71,7 +71,8 @@ func main() {
 
 	//fixme set up (load / generate) level - move to game / enter or title / exit
 	//level, rooms := _default.DefaultGen(mainCtx, gamemap.NewLevel(mainCtx, "test", 1))
-	level, rooms := mapgens.DelaunayMstGen(mainCtx, gamemap.NewLevel(mainCtx, "test", 1))
+	//level, rooms := mapgens.DelaunayMstGen(mainCtx, gamemap.NewLevel(mainCtx, "test", 1))
+	level, rooms := mapgens.DelaunayMstExtGen(mainCtx, gamemap.NewLevel(mainCtx, "test", 1))
 	State.Level = level
 
 	sidebarWidth := 0
diff --git a/engine/gamemap/level.go b/engine/gamemap/level.go
index d932ea5..472fc67 100644
--- a/engine/gamemap/level.go
+++ b/engine/gamemap/level.go
@@ -1,6 +1,7 @@
 package gamemap
 
 import (
+	"context"
 	"lab.zaar.be/thefish/alchemyst-go/engine/ecs"
 	"lab.zaar.be/thefish/alchemyst-go/engine/types"
 	"lab.zaar.be/thefish/alchemyst-go/util/appctx"
@@ -13,7 +14,7 @@ var mapHeight = 90
 
 type Level struct {
 	types.Rect
-	ctx     appctx.ClientCtx
+	ctx     context.Context
 	Name    string
 	Branch  string
 	Depth   int
@@ -53,17 +54,26 @@ func (l *Level) SetTileByXY (x,y int, tile *Tile) {
 	l.Tiles[y*l.W+x] = tile
 }
 
+//only replaces tile if original is not passable
+func (l *Level) MakePassByXY (x,y int, tile *Tile) {
+	t := l.Tiles[y*l.W+x]
+	if t.BlocksPass {
+		l.Tiles[y*l.W+x] = tile
+	}
+}
+
+
 func (l *Level) Put (x, y int, tileFunc interface{}) {
 	tile := tileFunc.(func() *Tile)()
 	if tile == nil {
-		l.ctx.Logger().Fatal().Msgf("Got non-tile type to put into level: %v", tile)
+		appctx.Logger(l.ctx).Fatal().Msgf("Got non-tile type to put into level: %v", tile)
 	}
 	if l.InBounds(types.Coords{x, y}) {
 		l.Tiles[y*l.W+x] = tile
 	}
 }
 
-func NewLevel(ctx appctx.ClientCtx, branch string, depth int) *Level {
+func NewLevel(ctx context.Context, branch string, depth int) *Level {
 	l := &Level{
 		ctx: ctx,
 		Name:     branch + string(depth),
@@ -72,7 +82,7 @@ func NewLevel(ctx appctx.ClientCtx, branch string, depth int) *Level {
 	}
 
 	l.Tiles = make([]*Tile, l.W*l.H)
-	ctx.Logger().Debug().Msgf("Generating level of branch %s depth %d", branch, depth)
+	appctx.Logger(ctx).Debug().Msgf("Generating level of branch %s depth %d", branch, depth)
 	return l
 }
 
diff --git a/engine/gamemap/mapgens/common.go b/engine/gamemap/mapgens/common.go
index 5f29efd..faf7aa9 100644
--- a/engine/gamemap/mapgens/common.go
+++ b/engine/gamemap/mapgens/common.go
@@ -1,6 +1,7 @@
 package mapgens
 
 import (
+	"context"
 	"lab.zaar.be/thefish/alchemyst-go/engine/gamemap"
 	"lab.zaar.be/thefish/alchemyst-go/engine/types"
 	"lab.zaar.be/thefish/alchemyst-go/util"
@@ -9,7 +10,7 @@ import (
 
 //fixme move to config
 var minRoomSize = 5
-var maxRoomSize = 25
+var maxRoomSize = 15
 var maxrooms = 200
 
 var fges = map[int]types.RectFill{
@@ -38,7 +39,7 @@ var fges = map[int]types.RectFill{
 	},
 }
 
-func GetRandomRoomList(ctx appctx.ClientCtx, rng *util.RNG, l *gamemap.Level, maxRooms, minRoomSize, maxRoomSize int, ) []gamemap.Room{
+func GetRandomRoomList(ctx context.Context, rng *util.RNG, l *gamemap.Level, maxRooms, minRoomSize, maxRoomSize int, ) []gamemap.Room{
 	rooms := make([]gamemap.Room, 0)
 	pfLoader := gamemap.NewPrefabLoader(ctx)
 	pfRooms := pfLoader.PrefabRoomsList()
@@ -102,6 +103,28 @@ func GetRandomRoomList(ctx appctx.ClientCtx, rng *util.RNG, l *gamemap.Level, ma
 }
 
 //delaunay helper funcs
+func MedianStraight(rng *util.RNG, l *gamemap.Level, rooms []gamemap.Room, centers []types.Coords, edge types.Edge) {
+	//find connected rooms
+	var  fromRoom, toRoom gamemap.Room
+	for _, room := range rooms {
+		if room.Center == edge.From {
+			fromRoom = room
+			continue
+		}
+		if room.Center == edge.To {
+			toRoom = room
+			continue
+		}
+		if len(fromRoom.Connectors) > 0 && len(toRoom.Connectors) > 0 {
+			break
+		}
+	}
+
+	midpoint := edge.Midpoint()
+	fromConnector := FindNearestConnector(midpoint, fromRoom)
+	toConnector := FindNearestConnector(midpoint, toRoom)
+	ConnectStraight(rng, l, fromConnector, toConnector, midpoint)
+}
 
 func FindNearestConnector(midpoint types.Coords, room gamemap.Room) types.Coords {
 	var nearest types.Coords
@@ -118,8 +141,8 @@ func FindNearestConnector(midpoint types.Coords, room gamemap.Room) types.Coords
 }
 
 func ConnectStraight(rng *util.RNG, l *gamemap.Level, from, to, midpoint types.Coords) {
-	toss := rng.Range(0, 1)
-	if toss == 0 {
+	toss := rng.Range(1, 2)
+	if toss > 1 {
 		DigHTunnel(l, from.X, midpoint.X, from.Y)
 		DigVTunnel(l, from.Y, to.Y, midpoint.X)
 		DigHTunnel(l, midpoint.X, to.X, to.Y)
@@ -141,7 +164,7 @@ func DigHTunnel(l *gamemap.Level, x1, x2, y int) {
 	}
 	for i := start; i <= finish; i++ {
 		if l.InBounds(types.Coords{i, y}) {
-			l.SetTileByXY(i, y, gamemap.NewFloor())
+			l.MakePassByXY(i, y, gamemap.NewFloor())
 			//l.Tiles[i][y] = gamemap.NewFloor()
 		}
 	}
@@ -158,7 +181,7 @@ func DigVTunnel(l *gamemap.Level, y1, y2, x int) {
 	}
 	for i := start; i <= finish; i++ {
 		if l.InBounds(types.Coords{x, i}) {
-			l.SetTileByXY(x, i, gamemap.NewFloor())
+			l.MakePassByXY(x, i, gamemap.NewFloor())
 		}
 	}
 }
diff --git a/engine/gamemap/mapgens/delaunay_mst.go b/engine/gamemap/mapgens/delaunay_mst.go
index 9b0f794..b5622a0 100644
--- a/engine/gamemap/mapgens/delaunay_mst.go
+++ b/engine/gamemap/mapgens/delaunay_mst.go
@@ -1,15 +1,15 @@
 package mapgens
 
 import (
+	"context"
 	"fmt"
 	"lab.zaar.be/thefish/alchemyst-go/engine/gamemap"
 	"lab.zaar.be/thefish/alchemyst-go/engine/types"
 	"lab.zaar.be/thefish/alchemyst-go/util"
-	"lab.zaar.be/thefish/alchemyst-go/util/appctx"
 	"lab.zaar.be/thefish/alchemyst-go/util/delaunay"
 )
 
-func DelaunayMstGen(ctx appctx.ClientCtx, l *gamemap.Level) (*gamemap.Level, []gamemap.Room) {
+func DelaunayMstGen(ctx context.Context, l *gamemap.Level) (*gamemap.Level, []gamemap.Room) {
 
 	rng := util.NewRNG()
 
@@ -33,7 +33,7 @@ func DelaunayMstGen(ctx appctx.ClientCtx, l *gamemap.Level) (*gamemap.Level, []g
 	for _, room := range rooms {
 		centers = append(centers, room.Center)
 	}
-	edges := delaunay.GetMst(centers, l.W, l.H)
+	edges := delaunay.GetMst(centers, l.W, l.H, 0)
 	for _, edge := range edges {
 		MedianStraight(rng, l, rooms, centers, edge)
 	}
@@ -41,27 +41,5 @@ func DelaunayMstGen(ctx appctx.ClientCtx, l *gamemap.Level) (*gamemap.Level, []g
 	return l, rooms
 }
 
-func MedianStraight(rng *util.RNG, l *gamemap.Level, rooms []gamemap.Room, centers []types.Coords, edge types.Edge) {
-	//find connected rooms
-	var  fromRoom, toRoom gamemap.Room
-	for _, room := range rooms {
-		if room.Center == edge.From {
-			fromRoom = room
-			continue
-		}
-		if room.Center == edge.To {
-			toRoom = room
-			continue
-		}
-		if len(fromRoom.Connectors) > 0 && len(toRoom.Connectors) > 0 {
-			break
-		}
-	}
-
-	midpoint := edge.Midpoint()
-	fromConnector := FindNearestConnector(midpoint, fromRoom)
-	toConnector := FindNearestConnector(midpoint, toRoom)
-	ConnectStraight(rng, l, fromConnector, toConnector, midpoint)
-}
 
 
diff --git a/engine/gamemap/mapgens/delaunay_mst_ext.go b/engine/gamemap/mapgens/delaunay_mst_ext.go
new file mode 100644
index 0000000..8545087
--- /dev/null
+++ b/engine/gamemap/mapgens/delaunay_mst_ext.go
@@ -0,0 +1,55 @@
+package mapgens
+
+import (
+	"fmt"
+	"lab.zaar.be/thefish/alchemyst-go/engine/gamemap"
+	"lab.zaar.be/thefish/alchemyst-go/engine/types"
+	"lab.zaar.be/thefish/alchemyst-go/util"
+	"lab.zaar.be/thefish/alchemyst-go/util/appctx"
+	"lab.zaar.be/thefish/alchemyst-go/util/delaunay"
+)
+
+func DelaunayMstExtGen(ctx appctx.ClientCtx, l *gamemap.Level) (*gamemap.Level, []gamemap.Room) {
+
+	rng := util.NewRNG()
+
+	//fill with walls
+	for i := 0; i < l.W; i ++ {
+		for j := 0; j < l.H; j++ {
+			l.SetTileByXY(i, j, gamemap.NewWall())
+		}
+	}
+	rooms := GetRandomRoomList(ctx, rng, l, maxrooms, minRoomSize, maxRoomSize)
+
+
+	for _, room := range rooms {
+		err := room.BlitToLevel(l)
+		if err != nil {
+			fmt.Printf("err: %v", err)
+		}
+	}
+
+	centers := make([]types.Coords, 0)
+	for _, room := range rooms {
+		centers = append(centers, room.Center)
+	}
+	edges := delaunay.GetMst(centers, l.W, l.H, l.W) //get negative Weights
+	outlyingCorridors := make([]types.Edge, 0)
+	outlyingCorrCount := 0
+	for _, edge := range edges {
+		MedianStraight(rng, l, rooms, centers, edge)
+		outlyingCorridors = append(outlyingCorridors, edge)
+		outlyingCorrCount++
+		if outlyingCorrCount > 5 {
+			break
+		}
+	}
+
+	edges = delaunay.GetMst(centers, l.W, l.H, 0) //get negative Weights
+	for _, edge := range edges {
+		MedianStraight(rng, l, rooms, centers, edge)
+	}
+
+	return l, rooms
+}
+
diff --git a/engine/gamemap/prefab.go b/engine/gamemap/prefab.go
index 87224cb..4bdf750 100644
--- a/engine/gamemap/prefab.go
+++ b/engine/gamemap/prefab.go
@@ -1,6 +1,7 @@
 package gamemap
 
 import (
+	"context"
 	"encoding/json"
 	"io/ioutil"
 	"lab.zaar.be/thefish/alchemyst-go/engine/items"
@@ -42,10 +43,10 @@ func LoadPrefabFile(filename string) (*PrefabFile, error) {
 }
 
 type PrefabLoader struct {
-	ctx appctx.ClientCtx
+	ctx context.Context
 }
 
-func NewPrefabLoader(ctx appctx.ClientCtx) PrefabLoader {
+func NewPrefabLoader(ctx context.Context) PrefabLoader {
 	return PrefabLoader{ctx: ctx}
 }
 
@@ -105,7 +106,7 @@ func (pfbl PrefabLoader) PrefabRoomsList() []Room {
 				} else {
 					f, ok = TileTypeMap[shortName]
 					if (!ok) {
-						pfbl.ctx.Logger().Warn().Msgf("Unknown tile: %s", shortName)
+						appctx.Logger(pfbl.ctx).Warn().Msgf("Unknown tile: %s", shortName)
 					}
 				}
 				room.Geometry[i+ j*room.W] = f
diff --git a/engine/gamemap/tile.go b/engine/gamemap/tile.go
index 0654985..80b4d22 100644
--- a/engine/gamemap/tile.go
+++ b/engine/gamemap/tile.go
@@ -110,6 +110,33 @@ func NewWaterTile() *Tile {
 		BlocksSight: false,
 		Explored:    false,
 		MustDraw:    true, //fixme debug
+		Appearance: &Appearance{
+			Glyph: &PlainGlyphHolder{" "},
+			ColorSet: TileColorSet{
+				Fg: &PlainColorHolder{255, 220, 220, 250},
+				Bg: &DanceColorHolder{
+					255,
+					SingleColorRing(5),
+					FillColorRing(2, 2, 42, 4),
+					FillColorRing(154, 150, 229, 12),
+				},
+				DarkFg: &PlainColorHolder{255, 30, 20, 50},
+				DarkBg: &PlainColorHolder{255, 7, 7, 30},
+			},
+		},
+
+	}
+}
+
+func NewDeepWaterTile() *Tile {
+	//ch := &ColorHolder{5, 2, 154}
+	return &Tile{
+		Name:        "Deep Water",
+		Description: "Deep water",
+		BlocksPass:  false,
+		BlocksSight: false,
+		Explored:    false,
+		MustDraw:    true, //fixme debug
 
 		Appearance: &Appearance{
 			Glyph: &PlainGlyphHolder{" "},
@@ -125,31 +152,6 @@ func NewWaterTile() *Tile {
 				DarkBg: &PlainColorHolder{255, 7, 7, 30},
 			},
 		},
-	}
-}
 
-func NewDeepWaterTile() *Tile {
-	//ch := &ColorHolder{5, 2, 154}
-	return &Tile{
-		Name:        "Deep Water",
-		Description: "Deep water",
-		BlocksPass:  false,
-		BlocksSight: false,
-		Explored:    false,
-		MustDraw:    true, //fixme debug
-		Appearance: &Appearance{
-			Glyph: &PlainGlyphHolder{" "},
-			ColorSet: TileColorSet{
-				Fg: &PlainColorHolder{255, 220, 220, 250},
-				Bg: &DanceColorHolder{
-					255,
-					SingleColorRing(5),
-					FillColorRing(2, 2, 42, 4),
-					FillColorRing(154, 150, 229, 12),
-				},
-				DarkFg: &PlainColorHolder{255, 30, 20, 50},
-				DarkBg: &PlainColorHolder{255, 7, 7, 30},
-			},
-		},
 	}
 }
diff --git a/engine/types/screen.go b/engine/types/screen.go
index 5b0693d..2ea0292 100644
--- a/engine/types/screen.go
+++ b/engine/types/screen.go
@@ -1,6 +1,7 @@
 package types
 
 import (
+	"context"
 	"lab.zaar.be/thefish/alchemyst-go/util/appctx"
 )
 
@@ -13,14 +14,14 @@ type Screen interface {
 }
 
 type ScreenManager struct {
-	ctx            appctx.ClientCtx
+	ctx            context.Context
 	Screens        map[string]Screen
 	CurrentScreen  Screen
 	PreviousScreen Screen
 }
 
 // NewScreenManager is a convenience/constructor method to properly initialize a new ScreenManager
-func NewScreenManager(ctx appctx.ClientCtx) *ScreenManager {
+func NewScreenManager(ctx context.Context) *ScreenManager {
 	manager := ScreenManager{
 		ctx:ctx,
 		Screens: make(map[string]Screen),
@@ -35,7 +36,7 @@ func (sm *ScreenManager) AddScreen(screenName string, screen Screen) {
 		// A screen with the given name does not yet exist on the ScreenManager, go ahead and add it
 		sm.Screens[screenName] = screen
 	} else {
-		sm.ctx.Logger().Warn().Msgf("A screen with name %v was already added to the ScreenManager %v!", screenName, sm)
+		appctx.Logger(sm.ctx).Warn().Msgf("A screen with name %v was already added to the ScreenManager %v!", screenName, sm)
 	}
 }
 
@@ -48,7 +49,7 @@ func (sm *ScreenManager) RemoveScreen(screenName string, screen Screen) {
 		delete(sm.Screens, screenName)
 	} else {
 		// A screen with the given name does not exist
-		sm.ctx.Logger().Warn().Msgf("A screen with name %v was not found on ScreenManager %v!", screenName, sm)
+		appctx.Logger(sm.ctx).Warn().Msgf("A screen with name %v was not found on ScreenManager %v!", screenName, sm)
 	}
 }
 
@@ -83,6 +84,6 @@ func (sm *ScreenManager) SetScreenByName(screenName string) {
 		sm.CurrentScreen.Enter()
 	} else {
 		// A screen with the given name does not exist
-		sm.ctx.Logger().Warn().Msgf("A screen with name %v was not found on ScreenManager %v!", screenName, sm)
+		appctx.Logger(sm.ctx).Warn().Msgf("A screen with name %v was not found on ScreenManager %v!", screenName, sm)
 	}
 }
\ No newline at end of file
diff --git a/ui/mainwindow/mainwindow.go b/ui/mainwindow/mainwindow.go
index 2577a4b..ac0a3f2 100644
--- a/ui/mainwindow/mainwindow.go
+++ b/ui/mainwindow/mainwindow.go
@@ -1,6 +1,7 @@
 package mainwindow
 
 import (
+	"context"
 	"fmt"
 	"lab.zaar.be/thefish/alchemyst-go/engine/types"
 	"lab.zaar.be/thefish/alchemyst-go/util/appctx"
@@ -9,12 +10,12 @@ import (
 
 type MainWindow struct {
 	types.Rect
-	ctx    appctx.ClientCtx
+	ctx    context.Context
 	layers map[string]types.Renderable
 }
 
-func Init(ctx appctx.ClientCtx) *MainWindow {
-	ctx.Logger().Info().Msgf("Opening main window...")
+func Init(ctx context.Context) *MainWindow {
+	appctx.Logger(ctx).Info().Msgf("Opening main window...")
 	mw := MainWindow{ctx: ctx, layers: make(map[string]types.Renderable, 0)}
 	mw.Open()
 	return &mw
@@ -32,12 +33,12 @@ func (mw *MainWindow) GetLayer(name string) *Layer {
 	if layer, ok := mw.layers[name]; ok {
 		return layer.(*Layer)
 	}
-	mw.ctx.Logger().Fatal().Msgf("No layer with such name %s", name)
+	appctx.Logger(mw.ctx).Fatal().Msgf("No layer with such name %s", name)
 	return nil
 }
 
 func (mw *MainWindow) Open() {
-	config := mw.ctx.Config()
+	config := appctx.Config(mw.ctx)
 	blt.Open()
 	//blt.Set("window: size=80x25, title="+config.Title+" v"+string(version)+"; font: ./fonts/Monaco-Linux.ttf, size=10")
 	blt.Set(
@@ -57,7 +58,7 @@ func (mw *MainWindow) Open() {
 }
 
 func (mw *MainWindow) Close() {
-	mw.ctx.Logger().Info().Msg("Closing main window...")
+	appctx.Logger(mw.ctx).Info().Msg("Closing main window...")
 	blt.Close()
 }
 
diff --git a/util/appctx/context.go b/util/appctx/context.go
index 3a72699..f51bcda 100644
--- a/util/appctx/context.go
+++ b/util/appctx/context.go
@@ -13,26 +13,26 @@ const (
 )
 
 type ClientCtx struct {
-	ctx context.Context
+	context.Context
 }
 
 func NewClientContext(config *util.Config, logger *zerolog.Logger) ClientCtx {
 	ctx := context.Context(context.TODO())
 	ctx = context.WithValue(ctx, configKey, config)
 	ctx = context.WithValue(ctx, loggerKey, logger)
-	return ClientCtx{ctx: ctx}
+	return ClientCtx{ ctx}
 }
 
-func (c *ClientCtx) Config() *util.Config {
-	cfg, ok := c.ctx.Value(configKey).(*util.Config)
+func Config(c context.Context) *util.Config {
+	cfg, ok := c.Value(configKey).(*util.Config)
 	if !ok {
 		panic(fmt.Errorf("no access to config from context"))
 	}
 	return cfg
 }
 
-func (c *ClientCtx) Logger() *zerolog.Logger {
-	logger, ok := c.ctx.Value(loggerKey).(*zerolog.Logger)
+func Logger(c context.Context) *zerolog.Logger {
+	logger, ok := c.Value(loggerKey).(*zerolog.Logger)
 	if !ok {
 		panic(fmt.Errorf("no access to logger from context"))
 	}
diff --git a/util/delaunay/mst.go b/util/delaunay/mst.go
index 3715d13..aeb3551 100644
--- a/util/delaunay/mst.go
+++ b/util/delaunay/mst.go
@@ -16,7 +16,7 @@ func GetTriangles(coords []types.Coords, w, h int) []types.Edge {
 	return output
 }
 
-func GetMst(coords []types.Coords, w, h int) []types.Edge {
+func GetMst(coords []types.Coords, w, h, negativeWeight int) []types.Edge {
 
 	d := &Delaunay{}
 
@@ -48,7 +48,7 @@ func GetMst(coords []types.Coords, w, h int) []types.Edge {
 			kruskals.SimpleWeightedEdge{
 				nodeMap[e.Nodes[0].Id],
 				nodeMap[e.Nodes[1].Id],
-				int(e.Nodes[0].Coords.DistanceTo(e.Nodes[1].Coords))},
+				negativeWeight - int(e.Nodes[0].Coords.DistanceTo(e.Nodes[1].Coords))},
 		)
 	}