feat: added way to get absolute mouse position.

camera.go

@@ -24,3 +24,10 @@ func (c *Camera)RealMatrix(
 	return *g
 }
 
+func (c *Camera) AbsMatrix(
+	e *Engine,
+) Matrix {
+	m := c.RealMatrix(e)
+	m.Invert()
+	return m
+}

cmd/test/main.go

@@ -263,6 +263,9 @@ func (d *Debug) Draw(
 		keyStrs = append(keyStrs, "THIS IS SHIT")
 	}
 
+	keyStrs = append(keyStrs, fmt.Sprintf("%v", e.CursorPosition()))
+	keyStrs = append(keyStrs, fmt.Sprintf("%v", e.AbsCursorPosition()))
+
 	e.DebugPrint(i,
 		strings.Join(keyStrs, ", "))
 

event.go

@@ -1,7 +1,7 @@
 package gg
 
 import (
-	"github.com/hajimehoshi/ebiten/v2"
+	//"github.com/hajimehoshi/ebiten/v2"
 )
 
 type Eventer interface {
@@ -38,7 +38,6 @@ type KeyUp struct {
 }
 
 
-type MouseButton = ebiten.MouseButton
 type MouseButtonDown struct {
 	MouseButton
 	P Vector

mouse.go

@@ -0,0 +1,19 @@
+package gg
+
+import (
+	"github.com/hajimehoshi/ebiten/v2"
+)
+
+type MouseButton = ebiten.MouseButton
+
+func (e *Engine) CursorPosition() Vector {
+	x, y := ebiten.CursorPosition()
+	return V(Float(x), Float(y))
+}
+
+func (e *Engine) AbsCursorPosition() Vector {
+	m := &Matrix{}
+	m.Concat(e.Camera().AbsMatrix(e))
+	return e.CursorPosition().Apply(m)
+}
+