Simple keyboard input & pause system

game/game.go

@@ -3,15 +3,17 @@ package game
 import (
 	"log"
 
+	"github.com/manleydev/golang-game-framework/input"
 	"github.com/manleydev/golang-game-framework/node"
 	"github.com/manleydev/golang-game-framework/rendering"
 	"github.com/manleydev/golang-game-framework/sdl"
 )
 
-func Run(root *node.Node, renderer rendering.Renderer2D) {
+func Run(root *node.Node, renderer rendering.Renderer2D, inputHandler input.InputHandler) {
 	texture := sdl.NewSdlTexture2D(renderer, "gopher.bmp")
 
 	g := node.NewSprite2D(texture)
+	g.Name = "Gopher"
 	defer root.AddChild(g)
 
 	g.OnReady(func() error {
@@ -19,12 +21,32 @@ func Run(root *node.Node, renderer rendering.Renderer2D) {
 		return nil
 	})
 
+	speed := 0.01
 	g.OnUpdate(func() error {
-		g.Rotation += 0.01
+
+		if inputHandler.IsKeyJustPressed(sdl.SCANCODE_SPACE) {
+			speed = -speed
+		}
+
+		g.Rotation += speed
 		return nil
 	})
 
-	g.Name = "Gopher"
+	controller := node.NewNode()
+	controller.Name = "Controller"
+	defer root.AddChild(&controller)
+
+	controller.OnUpdate(func() error {
+		if inputHandler.IsKeyJustPressed(sdl.SCANCODE_ESCAPE) {
+			if g.IsProcessing() {
+				g.SetProcessMode(node.PausedProcessMode)
+			} else {
+				g.SetProcessMode(node.DefaultProcessMode)
+			}
+		}
+
+		return nil
+	})
 
 	camera := node.NewCamera2D(&renderer, rendering.NewStandardCamera())
 	defer root.AddChild(camera)

go.mod

@@ -1,5 +1,5 @@
 module github.com/manleydev/golang-game-framework
 
-go 1.16
+go 1.18
 
-require github.com/veandco/go-sdl2 v0.4.21 // indirect
+require github.com/veandco/go-sdl2 v0.4.21

go.sum

@@ -1,2 +1,4 @@
 github.com/veandco/go-sdl2 v0.4.21 h1:85AtFYv3vSPZvyOOxkJ03sHoJe8ESjPSZLr0KueQtVY=
 github.com/veandco/go-sdl2 v0.4.21/go.mod h1:OROqMhHD43nT4/i9crJukyVecjPNYYuCofep6SNiAjY=
+github.com/veandco/go-sdl2 v0.4.24 h1:J+OCnPp0yfas4DAG13e3kIgC84mNxWGa3gpWYxrQQfI=
+github.com/veandco/go-sdl2 v0.4.24/go.mod h1:OROqMhHD43nT4/i9crJukyVecjPNYYuCofep6SNiAjY=

input/input_handler.go

@@ -0,0 +1,8 @@
+package input
+
+type InputHandler interface {
+	IsKeyDown(uint) bool
+	IsKeyJustPressed(uint) bool
+	IsKeyJustReleased(uint) bool
+	Update() error
+}

main.go

@@ -4,12 +4,14 @@ import (
 	"log"
 
 	"github.com/manleydev/golang-game-framework/game"
+	"github.com/manleydev/golang-game-framework/input"
 	"github.com/manleydev/golang-game-framework/node"
 	"github.com/manleydev/golang-game-framework/rendering"
 	"github.com/manleydev/golang-game-framework/sdl"
 )
 
 func main() {
+
 	var renderer rendering.Renderer2D = sdl.NewSdlRenderer2D(sdl.SdlRenderer2DInput{
 		WindowTitle:  "Sample Game",
 		WindowWidth:  1280,
@@ -17,16 +19,23 @@ func main() {
 	})
 	defer renderer.Destroy()
 
+	var input input.InputHandler = sdl.NewSdlInputHandler()
+
 	root := node.NewNode()
 	root.Name = "Root"
 
-	game.Run(&root, renderer)
+	game.Run(&root, renderer, input)
 
 	running := true
 	for running {
+
 		if err := root.Update(); err != nil {
 			log.Fatal("Update: ", err)
 		}
+		if err := input.Update(); err != nil {
+			log.Fatal("Input Update: ", err)
+		}
+
 		if err := renderer.Update(); err != nil {
 			log.Fatal("Renderer Update: ", err)
 		}

node/inode.go

@@ -1,7 +1,18 @@
 package node
 
+type ProcessMode uint8
+
+const (
+	DefaultProcessMode ProcessMode = iota
+	PausedProcessMode
+	ActiveProcessMode
+)
+
 type INode interface {
 	GetName() string
 	Update() error
 	ready(INode) error
+	IsProcessing() bool
+	GetProcessMode() ProcessMode
+	SetProcessMode(ProcessMode)
 }

node/node.go

@@ -7,9 +7,10 @@ import (
 )
 
 type Node struct {
-	Name     string
+	Name        string
-	children []INode
+	children    []INode
-	parent   INode
+	parent      INode
+	processMode ProcessMode
 
 	onReadyMethods  []func() error
 	onUpdateMethods []func() error
@@ -41,9 +42,11 @@ func (node *Node) Update() error {
 		}
 	}
 
-	for _, updateMethod := range node.onUpdateMethods {
+	if node.IsProcessing() {
-		if err := updateMethod(); err != nil {
+		for _, updateMethod := range node.onUpdateMethods {
-			return err
+			if err := updateMethod(); err != nil {
+				return err
+			}
 		}
 	}
 
@@ -86,6 +89,25 @@ func (node *Node) OnDraw2D(callback func(rendering.Renderer2D) error) {
 	node.onDraw2dMethods = append(node.onDraw2dMethods, callback)
 }
 
+func (node *Node) IsProcessing() bool {
+	if node.processMode == DefaultProcessMode {
+		if node.parent != nil {
+			return node.parent.IsProcessing()
+		}
+		return true
+	}
+
+	return node.processMode == ActiveProcessMode
+}
+
+func (node *Node) GetProcessMode() ProcessMode {
+	return node.processMode
+}
+
+func (node *Node) SetProcessMode(mode ProcessMode) {
+	node.processMode = mode
+}
+
 func (node *Node) GetName() string {
 	return node.Name
 }
@@ -115,6 +137,7 @@ func (node *Node) GetParent() INode {
 
 func NewNode() Node {
 	return Node{
-		children: []INode{},
+		children:    []INode{},
+		processMode: DefaultProcessMode,
 	}
 }

sdl/event_handler.go

@@ -0,0 +1,7 @@
+package sdl
+
+import (
+	"github.com/veandco/go-sdl2/sdl"
+)
+
+type SdlEventHandler func(sdl.Event)

sdl/input_handler.go

@@ -0,0 +1,53 @@
+package sdl
+
+import (
+	"github.com/veandco/go-sdl2/sdl"
+)
+
+const EXPECTED_KEYBOARD_STATE_SIZE = 512
+
+type SdlInputHandler struct {
+	keyState     []uint8
+	lastKeyState []uint8
+}
+
+func (input *SdlInputHandler) IsKeyDown(key uint) bool {
+	keys := sdl.GetKeyboardState()
+
+	if keys[key] == 1 {
+		return true
+	}
+
+	return false
+}
+
+func (input *SdlInputHandler) IsKeyJustPressed(key uint) bool {
+	if input.keyState[key] == 1 && input.lastKeyState[key] == 0 {
+		return true
+	}
+
+	return false
+}
+
+func (input *SdlInputHandler) IsKeyJustReleased(key uint) bool {
+	if input.keyState[key] == 0 && input.lastKeyState[key] == 1 {
+		return true
+	}
+
+	return false
+}
+
+func (input *SdlInputHandler) Update() error {
+	copy(input.lastKeyState, input.keyState)
+	input.keyState = sdl.GetKeyboardState()
+
+	return nil
+}
+
+func NewSdlInputHandler() *SdlInputHandler {
+	handler := &SdlInputHandler{}
+	handler.lastKeyState = make([]uint8, EXPECTED_KEYBOARD_STATE_SIZE)
+	handler.keyState = make([]uint8, EXPECTED_KEYBOARD_STATE_SIZE)
+
+	return handler
+}

sdl/render2d.go

@@ -13,6 +13,7 @@ type SdlRenderer2D struct {
 	window        *sdl.Window
 	renderer      *sdl.Renderer
 	currentCamera *rendering.Camera2D
+	inputHandler  *SdlEventHandler
 }
 
 type SdlRenderer2DInput struct {
@@ -53,7 +54,7 @@ func NewSdlRenderer2D(input SdlRenderer2DInput) *SdlRenderer2D {
 	return w
 }
 
-func (w SdlRenderer2D) Destroy() {
+func (w *SdlRenderer2D) Destroy() {
 	if err := w.window.Destroy(); err != nil {
 		log.Print("Failed to destroy SDL window: ", err)
 	}
@@ -68,17 +69,22 @@ func (w *SdlRenderer2D) SetCamera(camera *rendering.Camera2D) error {
 	return nil
 }
 
-func (w SdlRenderer2D) Update() error {
+func (w *SdlRenderer2D) Update() error {
 	for event := sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
 		switch event.(type) {
 		case *sdl.QuitEvent:
 			return errors.New("Quit system not yet implemented!")
+		default:
+			if w.inputHandler != nil {
+				handler := *w.inputHandler
+				handler(event)
+			}
 		}
 	}
 	return nil
 }
 
-func (w SdlRenderer2D) DrawTexture2D(input rendering.DrawTexture2DInput) error {
+func (w *SdlRenderer2D) DrawTexture2D(input rendering.DrawTexture2DInput) error {
 	tex, ok := input.Texture.(*SdlTexture2D)
 	if !ok {
 		return errors.New("Texture is not an SdlTexture2D!")
@@ -117,7 +123,7 @@ func (w SdlRenderer2D) DrawTexture2D(input rendering.DrawTexture2DInput) error {
 	return nil
 }
 
-func (w SdlRenderer2D) Draw() error {
+func (w *SdlRenderer2D) Draw() error {
 
 	w.renderer.Present()
 

sdl/scancode.go

@@ -0,0 +1,260 @@
+package sdl
+
+import (
+	"github.com/veandco/go-sdl2/sdl"
+)
+
+const (
+	SCANCODE_UNKNOWN = sdl.SCANCODE_UNKNOWN
+
+	SCANCODE_A = sdl.SCANCODE_A
+	SCANCODE_B = sdl.SCANCODE_B
+	SCANCODE_C = sdl.SCANCODE_C
+	SCANCODE_D = sdl.SCANCODE_D
+	SCANCODE_E = sdl.SCANCODE_E
+	SCANCODE_F = sdl.SCANCODE_F
+	SCANCODE_G = sdl.SCANCODE_G
+	SCANCODE_H = sdl.SCANCODE_H
+	SCANCODE_I = sdl.SCANCODE_I
+	SCANCODE_J = sdl.SCANCODE_J
+	SCANCODE_K = sdl.SCANCODE_K
+	SCANCODE_L = sdl.SCANCODE_L
+	SCANCODE_M = sdl.SCANCODE_M
+	SCANCODE_N = sdl.SCANCODE_N
+	SCANCODE_O = sdl.SCANCODE_O
+	SCANCODE_P = sdl.SCANCODE_P
+	SCANCODE_Q = sdl.SCANCODE_Q
+	SCANCODE_R = sdl.SCANCODE_R
+	SCANCODE_S = sdl.SCANCODE_S
+	SCANCODE_T = sdl.SCANCODE_T
+	SCANCODE_U = sdl.SCANCODE_U
+	SCANCODE_V = sdl.SCANCODE_V
+	SCANCODE_W = sdl.SCANCODE_W
+	SCANCODE_X = sdl.SCANCODE_X
+	SCANCODE_Y = sdl.SCANCODE_Y
+	SCANCODE_Z = sdl.SCANCODE_Z
+
+	SCANCODE_1 = sdl.SCANCODE_1
+	SCANCODE_2 = sdl.SCANCODE_2
+	SCANCODE_3 = sdl.SCANCODE_3
+	SCANCODE_4 = sdl.SCANCODE_4
+	SCANCODE_5 = sdl.SCANCODE_5
+	SCANCODE_6 = sdl.SCANCODE_6
+	SCANCODE_7 = sdl.SCANCODE_7
+	SCANCODE_8 = sdl.SCANCODE_8
+	SCANCODE_9 = sdl.SCANCODE_9
+	SCANCODE_0 = sdl.SCANCODE_0
+
+	SCANCODE_RETURN    = sdl.SCANCODE_RETURN
+	SCANCODE_ESCAPE    = sdl.SCANCODE_ESCAPE
+	SCANCODE_BACKSPACE = sdl.SCANCODE_BACKSPACE
+	SCANCODE_TAB       = sdl.SCANCODE_TAB
+	SCANCODE_SPACE     = sdl.SCANCODE_SPACE
+
+	SCANCODE_MINUS        = sdl.SCANCODE_MINUS
+	SCANCODE_EQUALS       = sdl.SCANCODE_EQUALS
+	SCANCODE_LEFTBRACKET  = sdl.SCANCODE_LEFTBRACKET
+	SCANCODE_RIGHTBRACKET = sdl.SCANCODE_RIGHTBRACKET
+	SCANCODE_BACKSLASH    = sdl.SCANCODE_BACKSLASH
+	SCANCODE_NONUSHASH    = sdl.SCANCODE_NONUSHASH
+	SCANCODE_SEMICOLON    = sdl.SCANCODE_SEMICOLON
+	SCANCODE_APOSTROPHE   = sdl.SCANCODE_APOSTROPHE
+	SCANCODE_GRAVE        = sdl.SCANCODE_GRAVE
+	SCANCODE_COMMA        = sdl.SCANCODE_COMMA
+	SCANCODE_PERIOD       = sdl.SCANCODE_PERIOD
+	SCANCODE_SLASH        = sdl.SCANCODE_SLASH
+	SCANCODE_CAPSLOCK     = sdl.SCANCODE_CAPSLOCK
+	SCANCODE_F1           = sdl.SCANCODE_F1
+	SCANCODE_F2           = sdl.SCANCODE_F2
+	SCANCODE_F3           = sdl.SCANCODE_F3
+	SCANCODE_F4           = sdl.SCANCODE_F4
+	SCANCODE_F5           = sdl.SCANCODE_F5
+	SCANCODE_F6           = sdl.SCANCODE_F6
+	SCANCODE_F7           = sdl.SCANCODE_F7
+	SCANCODE_F8           = sdl.SCANCODE_F8
+	SCANCODE_F9           = sdl.SCANCODE_F9
+	SCANCODE_F10          = sdl.SCANCODE_F10
+	SCANCODE_F11          = sdl.SCANCODE_F11
+	SCANCODE_F12          = sdl.SCANCODE_F12
+	SCANCODE_PRINTSCREEN  = sdl.SCANCODE_PRINTSCREEN
+	SCANCODE_SCROLLLOCK   = sdl.SCANCODE_SCROLLLOCK
+	SCANCODE_PAUSE        = sdl.SCANCODE_PAUSE
+	SCANCODE_INSERT       = sdl.SCANCODE_INSERT
+	SCANCODE_HOME         = sdl.SCANCODE_HOME
+	SCANCODE_PAGEUP       = sdl.SCANCODE_PAGEUP
+	SCANCODE_DELETE       = sdl.SCANCODE_DELETE
+	SCANCODE_END          = sdl.SCANCODE_END
+	SCANCODE_PAGEDOWN     = sdl.SCANCODE_PAGEDOWN
+	SCANCODE_RIGHT        = sdl.SCANCODE_RIGHT
+	SCANCODE_LEFT         = sdl.SCANCODE_LEFT
+	SCANCODE_DOWN         = sdl.SCANCODE_DOWN
+	SCANCODE_UP           = sdl.SCANCODE_UP
+
+	SCANCODE_NUMLOCKCLEAR = sdl.SCANCODE_NUMLOCKCLEAR
+	SCANCODE_KP_DIVIDE    = sdl.SCANCODE_KP_DIVIDE
+	SCANCODE_KP_MULTIPLY  = sdl.SCANCODE_KP_MULTIPLY
+	SCANCODE_KP_MINUS     = sdl.SCANCODE_KP_MINUS
+	SCANCODE_KP_PLUS      = sdl.SCANCODE_KP_PLUS
+	SCANCODE_KP_ENTER     = sdl.SCANCODE_KP_ENTER
+	SCANCODE_KP_1         = sdl.SCANCODE_KP_1
+	SCANCODE_KP_2         = sdl.SCANCODE_KP_2
+	SCANCODE_KP_3         = sdl.SCANCODE_KP_3
+	SCANCODE_KP_4         = sdl.SCANCODE_KP_4
+	SCANCODE_KP_5         = sdl.SCANCODE_KP_5
+	SCANCODE_KP_6         = sdl.SCANCODE_KP_6
+	SCANCODE_KP_7         = sdl.SCANCODE_KP_7
+	SCANCODE_KP_8         = sdl.SCANCODE_KP_8
+	SCANCODE_KP_9         = sdl.SCANCODE_KP_9
+	SCANCODE_KP_0         = sdl.SCANCODE_KP_0
+	SCANCODE_KP_PERIOD    = sdl.SCANCODE_KP_PERIOD
+
+	SCANCODE_NONUSBACKSLASH = sdl.SCANCODE_NONUSBACKSLASH
+	SCANCODE_APPLICATION    = sdl.SCANCODE_APPLICATION
+	SCANCODE_POWER          = sdl.SCANCODE_POWER
+	SCANCODE_KP_EQUALS      = sdl.SCANCODE_KP_EQUALS
+	SCANCODE_F13            = sdl.SCANCODE_F13
+	SCANCODE_F14            = sdl.SCANCODE_F14
+	SCANCODE_F15            = sdl.SCANCODE_F15
+	SCANCODE_F16            = sdl.SCANCODE_F16
+	SCANCODE_F17            = sdl.SCANCODE_F17
+	SCANCODE_F18            = sdl.SCANCODE_F18
+	SCANCODE_F19            = sdl.SCANCODE_F19
+	SCANCODE_F20            = sdl.SCANCODE_F20
+	SCANCODE_F21            = sdl.SCANCODE_F21
+	SCANCODE_F22            = sdl.SCANCODE_F22
+	SCANCODE_F23            = sdl.SCANCODE_F23
+	SCANCODE_F24            = sdl.SCANCODE_F24
+	SCANCODE_EXECUTE        = sdl.SCANCODE_EXECUTE
+	SCANCODE_HELP           = sdl.SCANCODE_HELP
+	SCANCODE_MENU           = sdl.SCANCODE_MENU
+	SCANCODE_SELECT         = sdl.SCANCODE_SELECT
+	SCANCODE_STOP           = sdl.SCANCODE_STOP
+	SCANCODE_AGAIN          = sdl.SCANCODE_AGAIN
+	SCANCODE_UNDO           = sdl.SCANCODE_UNDO
+	SCANCODE_CUT            = sdl.SCANCODE_CUT
+	SCANCODE_COPY           = sdl.SCANCODE_COPY
+	SCANCODE_PASTE          = sdl.SCANCODE_PASTE
+	SCANCODE_FIND           = sdl.SCANCODE_FIND
+	SCANCODE_MUTE           = sdl.SCANCODE_MUTE
+	SCANCODE_VOLUMEUP       = sdl.SCANCODE_VOLUMEUP
+	SCANCODE_VOLUMEDOWN     = sdl.SCANCODE_VOLUMEDOWN
+	SCANCODE_KP_COMMA       = sdl.SCANCODE_KP_COMMA
+	SCANCODE_KP_EQUALSAS400 = sdl.SCANCODE_KP_EQUALSAS400
+
+	SCANCODE_INTERNATIONAL1 = sdl.SCANCODE_INTERNATIONAL1
+	SCANCODE_INTERNATIONAL2 = sdl.SCANCODE_INTERNATIONAL2
+	SCANCODE_INTERNATIONAL3 = sdl.SCANCODE_INTERNATIONAL3
+	SCANCODE_INTERNATIONAL4 = sdl.SCANCODE_INTERNATIONAL4
+	SCANCODE_INTERNATIONAL5 = sdl.SCANCODE_INTERNATIONAL5
+	SCANCODE_INTERNATIONAL6 = sdl.SCANCODE_INTERNATIONAL6
+	SCANCODE_INTERNATIONAL7 = sdl.SCANCODE_INTERNATIONAL7
+	SCANCODE_INTERNATIONAL8 = sdl.SCANCODE_INTERNATIONAL8
+	SCANCODE_INTERNATIONAL9 = sdl.SCANCODE_INTERNATIONAL9
+	SCANCODE_LANG1          = sdl.SCANCODE_LANG1
+	SCANCODE_LANG2          = sdl.SCANCODE_LANG2
+	SCANCODE_LANG3          = sdl.SCANCODE_LANG3
+	SCANCODE_LANG4          = sdl.SCANCODE_LANG4
+	SCANCODE_LANG5          = sdl.SCANCODE_LANG5
+	SCANCODE_LANG6          = sdl.SCANCODE_LANG6
+	SCANCODE_LANG7          = sdl.SCANCODE_LANG7
+	SCANCODE_LANG8          = sdl.SCANCODE_LANG8
+	SCANCODE_LANG9          = sdl.SCANCODE_LANG9
+
+	SCANCODE_ALTERASE   = sdl.SCANCODE_ALTERASE
+	SCANCODE_SYSREQ     = sdl.SCANCODE_SYSREQ
+	SCANCODE_CANCEL     = sdl.SCANCODE_CANCEL
+	SCANCODE_CLEAR      = sdl.SCANCODE_CLEAR
+	SCANCODE_PRIOR      = sdl.SCANCODE_PRIOR
+	SCANCODE_RETURN2    = sdl.SCANCODE_RETURN2
+	SCANCODE_SEPARATOR  = sdl.SCANCODE_SEPARATOR
+	SCANCODE_OUT        = sdl.SCANCODE_OUT
+	SCANCODE_OPER       = sdl.SCANCODE_OPER
+	SCANCODE_CLEARAGAIN = sdl.SCANCODE_CLEARAGAIN
+	SCANCODE_CRSEL      = sdl.SCANCODE_CRSEL
+	SCANCODE_EXSEL      = sdl.SCANCODE_EXSEL
+
+	SCANCODE_KP_00              = sdl.SCANCODE_KP_00
+	SCANCODE_KP_000             = sdl.SCANCODE_KP_000
+	SCANCODE_THOUSANDSSEPARATOR = sdl.SCANCODE_THOUSANDSSEPARATOR
+	SCANCODE_DECIMALSEPARATOR   = sdl.SCANCODE_DECIMALSEPARATOR
+	SCANCODE_CURRENCYUNIT       = sdl.SCANCODE_CURRENCYUNIT
+	SCANCODE_CURRENCYSUBUNIT    = sdl.SCANCODE_CURRENCYSUBUNIT
+	SCANCODE_KP_LEFTPAREN       = sdl.SCANCODE_KP_LEFTPAREN
+	SCANCODE_KP_RIGHTPAREN      = sdl.SCANCODE_KP_RIGHTPAREN
+	SCANCODE_KP_LEFTBRACE       = sdl.SCANCODE_KP_LEFTBRACE
+	SCANCODE_KP_RIGHTBRACE      = sdl.SCANCODE_KP_RIGHTBRACE
+	SCANCODE_KP_TAB             = sdl.SCANCODE_KP_TAB
+	SCANCODE_KP_BACKSPACE       = sdl.SCANCODE_KP_BACKSPACE
+	SCANCODE_KP_A               = sdl.SCANCODE_KP_A
+	SCANCODE_KP_B               = sdl.SCANCODE_KP_B
+	SCANCODE_KP_C               = sdl.SCANCODE_KP_C
+	SCANCODE_KP_D               = sdl.SCANCODE_KP_D
+	SCANCODE_KP_E               = sdl.SCANCODE_KP_E
+	SCANCODE_KP_F               = sdl.SCANCODE_KP_F
+	SCANCODE_KP_XOR             = sdl.SCANCODE_KP_XOR
+	SCANCODE_KP_POWER           = sdl.SCANCODE_KP_POWER
+	SCANCODE_KP_PERCENT         = sdl.SCANCODE_KP_PERCENT
+	SCANCODE_KP_LESS            = sdl.SCANCODE_KP_LESS
+	SCANCODE_KP_GREATER         = sdl.SCANCODE_KP_GREATER
+	SCANCODE_KP_AMPERSAND       = sdl.SCANCODE_KP_AMPERSAND
+	SCANCODE_KP_DBLAMPERSAND    = sdl.SCANCODE_KP_DBLAMPERSAND
+	SCANCODE_KP_VERTICALBAR     = sdl.SCANCODE_KP_VERTICALBAR
+	SCANCODE_KP_DBLVERTICALBAR  = sdl.SCANCODE_KP_DBLVERTICALBAR
+	SCANCODE_KP_COLON           = sdl.SCANCODE_KP_COLON
+	SCANCODE_KP_HASH            = sdl.SCANCODE_KP_HASH
+	SCANCODE_KP_SPACE           = sdl.SCANCODE_KP_SPACE
+	SCANCODE_KP_AT              = sdl.SCANCODE_KP_AT
+	SCANCODE_KP_EXCLAM          = sdl.SCANCODE_KP_EXCLAM
+	SCANCODE_KP_MEMSTORE        = sdl.SCANCODE_KP_MEMSTORE
+	SCANCODE_KP_MEMRECALL       = sdl.SCANCODE_KP_MEMRECALL
+	SCANCODE_KP_MEMCLEAR        = sdl.SCANCODE_KP_MEMCLEAR
+	SCANCODE_KP_MEMADD          = sdl.SCANCODE_KP_MEMADD
+	SCANCODE_KP_MEMSUBTRACT     = sdl.SCANCODE_KP_MEMSUBTRACT
+	SCANCODE_KP_MEMMULTIPLY     = sdl.SCANCODE_KP_MEMMULTIPLY
+	SCANCODE_KP_MEMDIVIDE       = sdl.SCANCODE_KP_MEMDIVIDE
+	SCANCODE_KP_PLUSMINUS       = sdl.SCANCODE_KP_PLUSMINUS
+	SCANCODE_KP_CLEAR           = sdl.SCANCODE_KP_CLEAR
+	SCANCODE_KP_CLEARENTRY      = sdl.SCANCODE_KP_CLEARENTRY
+	SCANCODE_KP_BINARY          = sdl.SCANCODE_KP_BINARY
+	SCANCODE_KP_OCTAL           = sdl.SCANCODE_KP_OCTAL
+	SCANCODE_KP_DECIMAL         = sdl.SCANCODE_KP_DECIMAL
+	SCANCODE_KP_HEXADECIMAL     = sdl.SCANCODE_KP_HEXADECIMAL
+
+	SCANCODE_LCTRL          = sdl.SCANCODE_LCTRL
+	SCANCODE_LSHIFT         = sdl.SCANCODE_LSHIFT
+	SCANCODE_LALT           = sdl.SCANCODE_LALT
+	SCANCODE_LGUI           = sdl.SCANCODE_LGUI
+	SCANCODE_RCTRL          = sdl.SCANCODE_RCTRL
+	SCANCODE_RSHIFT         = sdl.SCANCODE_RSHIFT
+	SCANCODE_RALT           = sdl.SCANCODE_RALT
+	SCANCODE_RGUI           = sdl.SCANCODE_RGUI
+	SCANCODE_MODE           = sdl.SCANCODE_MODE
+	SCANCODE_AUDIONEXT      = sdl.SCANCODE_AUDIONEXT
+	SCANCODE_AUDIOPREV      = sdl.SCANCODE_AUDIOPREV
+	SCANCODE_AUDIOSTOP      = sdl.SCANCODE_AUDIOSTOP
+	SCANCODE_AUDIOPLAY      = sdl.SCANCODE_AUDIOPLAY
+	SCANCODE_AUDIOMUTE      = sdl.SCANCODE_AUDIOMUTE
+	SCANCODE_MEDIASELECT    = sdl.SCANCODE_MEDIASELECT
+	SCANCODE_WWW            = sdl.SCANCODE_WWW
+	SCANCODE_MAIL           = sdl.SCANCODE_MAIL
+	SCANCODE_CALCULATOR     = sdl.SCANCODE_CALCULATOR
+	SCANCODE_COMPUTER       = sdl.SCANCODE_COMPUTER
+	SCANCODE_AC_SEARCH      = sdl.SCANCODE_AC_SEARCH
+	SCANCODE_AC_HOME        = sdl.SCANCODE_AC_HOME
+	SCANCODE_AC_BACK        = sdl.SCANCODE_AC_BACK
+	SCANCODE_AC_FORWARD     = sdl.SCANCODE_AC_FORWARD
+	SCANCODE_AC_STOP        = sdl.SCANCODE_AC_STOP
+	SCANCODE_AC_REFRESH     = sdl.SCANCODE_AC_REFRESH
+	SCANCODE_AC_BOOKMARKS   = sdl.SCANCODE_AC_BOOKMARKS
+	SCANCODE_BRIGHTNESSDOWN = sdl.SCANCODE_BRIGHTNESSDOWN
+	SCANCODE_BRIGHTNESSUP   = sdl.SCANCODE_BRIGHTNESSUP
+	SCANCODE_DISPLAYSWITCH  = sdl.SCANCODE_DISPLAYSWITCH
+	SCANCODE_KBDILLUMTOGGLE = sdl.SCANCODE_KBDILLUMTOGGLE
+	SCANCODE_KBDILLUMDOWN   = sdl.SCANCODE_KBDILLUMDOWN
+	SCANCODE_KBDILLUMUP     = sdl.SCANCODE_KBDILLUMUP
+	SCANCODE_EJECT          = sdl.SCANCODE_EJECT
+	SCANCODE_SLEEP          = sdl.SCANCODE_SLEEP
+	SCANCODE_APP1           = sdl.SCANCODE_APP1
+	SCANCODE_APP2           = sdl.SCANCODE_APP2
+	NUM_SCANCODES           = sdl.NUM_SCANCODES
+)