diff --git a/cmd/test/camera.go b/cmd/test/camera.go
index d25f98e..a4c430e 100644
--- a/cmd/test/camera.go
+++ b/cmd/test/camera.go
@@ -59,9 +59,11 @@ func (cam *Camera) OnUpdate(c gg.Context) {
 	for _, key := range c.Engine().GetKeyboardKeys() {
 		switch key {
 		case gg.KeyF:
-			cam.AddScale(mx.V2(d*cam.ScaleSpeed * dt))
+			cam.AddScale(mx.VX(d*cam.ScaleSpeed * dt))
+		case gg.KeyG:
+			cam.AddScale(mx.VY(d*cam.ScaleSpeed * dt))
 		case gg.KeyR:
-			cam.Rotate(d*mx.Pi * cam.ScaleSpeed * dt)
+			cam.Rotate(d*mx.Pi * cam.RotationSpeed * dt)
 		}
 	}
 }
diff --git a/cmd/test/debug.go b/cmd/test/debug.go
index aab4958..3b3c2f3 100644
--- a/cmd/test/debug.go
+++ b/cmd/test/debug.go
@@ -5,8 +5,8 @@ import "surdeus.su/core/gg/ox"
 import "surdeus.su/core/gg/mx"
 
 import (
-	"strings"
-	"fmt"
+	//"strings"
+	//"fmt"
 )
 
 type Debug struct {
@@ -34,82 +34,40 @@ func (d *Debug) Draw(c Context) *gg.Drawing {
 	e := c.Engine()
 	relTri := tri.Rel()
 	relPlayer := player.Rel()
+	keys := c.Engine().GetKeyboardKeys()
 
-	keyStrs := []string{}
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"counter: %d", counter,
-	))
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"tps: %d", int(c.Engine().TPS()),
-	))
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"fps: %d", int(c.Engine().FPS()),
-	))
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"dframe: %d", int(c.Engine().Dframe()),
-	))
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"frame: %d", int(c.Engine().Frame()),
-	))
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"relPlayerPos: %v", relPlayer.GetPosition(),
-	))
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"absPlayerPos: %v", player.GetPosition(),
-	))
+	c.Dprint(
+		"counter = ", counter, "\n",
+		"tps = ", int(c.Engine().TPS()), "\n",
+		"fps = ", int(c.Engine().FPS()), "\n",
+		"dframe = ", int(c.Engine().Dframe()), "\n",
+		"frame = ", int(c.Engine().Frame()), "\n",
+		"relPlayerPos = ", relPlayer.GetPosition(), "\n",
+		"absPlayerPos = ", player.GetPosition(), "\n",
+		"relTriPos = ", relTri.GetPosition(), "\n",
+		"absTriPos = ", tri.GetPosition(), "\n",
+		"absTriRot = " , mx.Degree(tri.GetRotation()), "\n",
+		"keys = ", keys, "\n",
 
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"relTriPos: %v", relTri.GetPosition(),
-	))
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"absTriPos: %v", tri.GetPosition(),
-	))
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"absTriRot: %v", mx.Degree(tri.GetRotation()),
-	))
+		"GetMouseButtons(...) = ",
+		c.Engine().GetMouseButtons(), "\n",
 
-	keys := []string{}
-	for _, k := range e.GetKeyboardKeys() {
-		keys = append(keys, k.String())
-	}
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"keys: %s", strings.Join(keys, ", "),
-	))
+		"GetMouseWheel(...) = ", "\n",
+		c.Engine().GetMouseWheel(), "\n",
 
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"buttons: %v", c.Engine().MouseButtons(),
-	))
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"wheel: %v", c.Engine().Wheel(),
-	))
-	/*if rectMove.ContainsPoint(e.AbsCursorPosition()) {
-		keyStrs = append(keyStrs, "contains cursor")
-	}
-
-	if rectMove.Vertices().Contained(rect).Len() > 0 ||
-		rect.Vertices().Contained(rectMove).Len() > 0 {
-		keyStrs = append(keyStrs, "rectangles intersect")
-	}*/
-
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"camera position: %v %v",
+		"camera.GetPosition(...) = ",
 		camera.GetPosition().X,
-		camera.GetPosition().Y,
-	))
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"realCursorPos: %v", e.GetRealCursorPosition()))
-	keyStrs = append(keyStrs, fmt.Sprintf(
-		"absCursorPos: %v", e.GetAbsCursorPosition() ))
+		camera.GetPosition().Y, "\n",
 
-	keyStrs = append(keyStrs,
-		fmt.Sprintf(
-			"absWinSize: %v",
-			c.Engine().GetAbsWinSize(),
-		),
+		"GetRealCursorPosition(...) = ",
+		e.GetRealCursorPosition(), "\n",
+
+		"GetAbsCursorPos(...) = ",
+		e.GetAbsCursorPosition(), "\n",
+
+		"GetAbsWinSize(...) = ",
+		c.Engine().GetAbsWinSize(), "\n",
 	)
 
-	e.DebugPrint(c.Image(),
-		strings.Join(keyStrs, "\n"))
-
 	return nil
 }
diff --git a/context.go b/context.go
index 51dfd2c..00ef58a 100644
--- a/context.go
+++ b/context.go
@@ -1,5 +1,7 @@
 package gg
 
+import "fmt"
+
 // The type is used to provide
 // custom behaviour for drawing and updating etc.
 type Context struct {
@@ -33,3 +35,15 @@ func (c Context) Events() Events {
 	return c.events
 }
 
+func (c Context) Dprint(v ...any) {
+	c.Engine().DebugPrint(c.Image(), fmt.Sprint(v...))
+}
+
+func (c Context) Dprintln(v ...any) {
+	c.Engine().DebugPrint(c.Image(), fmt.Sprintln(v...))
+}
+
+func (c Context) Dprintf(format string, v ...any) {
+	c.Engine().DebugPrint(c.Image(), fmt.Sprintf(format, v...))
+}
+
diff --git a/engine.go b/engine.go
index 6d74f07..55cd04e 100644
--- a/engine.go
+++ b/engine.go
@@ -94,7 +94,7 @@ func (e *Engine) GraphicsLibrary() GraphicsLibrary {
 }
 
 // Returns currently pressed buttons.
-func (e *Engine) MouseButtons() []MouseButton {
+func (e *Engine) GetMouseButtons() []MouseButton {
 	ret := make([]MouseButton, len(e.buttons))
 	i := 0
 	for v := range e.buttons {
@@ -185,7 +185,7 @@ func (e *Engine) IsButtoned(b MouseButton) bool {
 	return ok
 }
 
-func (e *Engine) Wheel() mx.Vector {
+func (e *Engine) GetMouseWheel() mx.Vector {
 	return e.wheel
 }