Init

go.mod

@@ -0,0 +1,14 @@
+module github.com/bloeys/gopad
+
+go 1.17
+
+require (
+	github.com/bloeys/nmage v0.0.7-0.20220224025919-577e6250a8e5
+	github.com/inkyblackness/imgui-go/v4 v4.3.0
+	github.com/veandco/go-sdl2 v0.4.14
+)
+
+require (
+	github.com/bloeys/gglm v0.3.1 // indirect
+	github.com/go-gl/gl v0.0.0-20211210172815-726fda9656d6 // indirect
+)

go.sum

@@ -0,0 +1,20 @@
+github.com/bloeys/assimp-go v0.4.2/go.mod h1:my3yRxT7CfOztmvi+0svmwbaqw0KFrxaHxncoyaEIP0=
+github.com/bloeys/gglm v0.3.1 h1:Sy9upW7SBsBfDXrSmEhid3aQ+7J7itej+upwcxOnPMQ=
+github.com/bloeys/gglm v0.3.1/go.mod h1:qwJQ0WzV191wAMwlGicbfbChbKoSedMk7gFFX6GnyOk=
+github.com/bloeys/nmage v0.0.7-0.20220224025919-577e6250a8e5 h1:stKgJ7DAhmmYy+meP0j7vyjmlfgrAO7jcz6+BwZAVbg=
+github.com/bloeys/nmage v0.0.7-0.20220224025919-577e6250a8e5/go.mod h1:4h2tKtMvk9ab8r/+rem4QonPXEBTho6VWvpCMm0M6iM=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-gl/gl v0.0.0-20211025173605-bda47ffaa784/go.mod h1:9YTyiznxEY1fVinfM7RvRcjRHbw2xLBJ3AAGIT0I4Nw=
+github.com/go-gl/gl v0.0.0-20211210172815-726fda9656d6 h1:zDw5v7qm4yH7N8C8uWd+8Ii9rROdgWxQuGoJ9WDXxfk=
+github.com/go-gl/gl v0.0.0-20211210172815-726fda9656d6/go.mod h1:9YTyiznxEY1fVinfM7RvRcjRHbw2xLBJ3AAGIT0I4Nw=
+github.com/inkyblackness/imgui-go/v4 v4.3.0 h1:iyAzqWXq/dG5+6ckDPhGivtrIo6AywGQMvENKzun04s=
+github.com/inkyblackness/imgui-go/v4 v4.3.0/go.mod h1:g8SAGtOYUP7rYaOB2AsVKCEHmPMDmJKgt4z6d+flhb0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/veandco/go-sdl2 v0.4.10/go.mod h1:OROqMhHD43nT4/i9crJukyVecjPNYYuCofep6SNiAjY=
+github.com/veandco/go-sdl2 v0.4.14 h1:ShagETHJG8NCWVn9rwfZ9WLIaN4c2maw3gfFH+9DlOg=
+github.com/veandco/go-sdl2 v0.4.14/go.mod h1:OROqMhHD43nT4/i9crJukyVecjPNYYuCofep6SNiAjY=

imgui.ini

@@ -0,0 +1,15 @@
+[Window][Debug##Default]
+Pos=496,94
+Size=400,400
+Collapsed=0
+
+[Window][text]
+Pos=60,60
+Size=32,32
+Collapsed=0
+
+[Window][sidebar]
+Pos=0,0
+Size=32,32
+Collapsed=0
+

main.go

@@ -0,0 +1,132 @@
+package main
+
+import (
+	"github.com/bloeys/nmage/engine"
+	"github.com/bloeys/nmage/input"
+	"github.com/bloeys/nmage/logging"
+	nmageimgui "github.com/bloeys/nmage/ui/imgui"
+	"github.com/inkyblackness/imgui-go/v4"
+	"github.com/veandco/go-sdl2/sdl"
+)
+
+type Gopad struct {
+	Win       *engine.Window
+	ImGUIInfo nmageimgui.ImguiInfo
+	Quitting  bool
+
+	mainFont imgui.Font
+	buffer   []rune
+}
+
+var ()
+
+func main() {
+
+	if err := engine.Init(); err != nil {
+		panic(err)
+	}
+
+	window, err := engine.CreateOpenGLWindowCentered("nMage", 1280, 720, engine.WindowFlags_RESIZABLE)
+	if err != nil {
+		logging.ErrLog.Fatalln("Failed to create window. Err: ", err)
+	}
+	defer window.Destroy()
+
+	g := Gopad{
+		Win:       window,
+		ImGUIInfo: nmageimgui.NewImGUI(),
+	}
+
+	engine.Run(&g)
+}
+
+func (g *Gopad) Init() {
+	g.Win.EventCallbacks = append(g.Win.EventCallbacks, g.handleWindowEvents)
+	g.mainFont = g.ImGUIInfo.AddFontTTF("./res/fonts/courier-new.ttf", 24)
+}
+
+func (g *Gopad) handleWindowEvents(event sdl.Event) {
+
+	switch e := event.(type) {
+
+	case *sdl.TextEditingEvent:
+	case *sdl.TextInputEvent:
+		g.buffer = append(g.buffer, []rune(e.GetText())...)
+	}
+}
+
+func (g *Gopad) FrameStart() {
+}
+
+func (g *Gopad) Update() {
+
+	if input.IsQuitClicked() {
+		g.Quitting = true
+	}
+
+	if x, y := input.GetMousePos(); x > 0 && y > 0 && input.MouseClicked(sdl.BUTTON_LEFT) {
+		println("Start")
+		sdl.StartTextInput()
+	}
+
+	if input.KeyClicked(sdl.K_ESCAPE) {
+		println("End")
+		sdl.StopTextInput()
+	}
+
+	if input.KeyClicked(sdl.K_BACKSPACE) && len(g.buffer) > 0 {
+		g.buffer = g.buffer[:len(g.buffer)-1]
+	}
+
+	if input.KeyClicked(sdl.K_RETURN) || input.KeyClicked(sdl.K_RETURN2) {
+		g.buffer = append(g.buffer, rune('\n'))
+	}
+
+}
+
+func (g *Gopad) Render() {
+
+	open := true
+	w, h := g.Win.SDLWin.GetSize()
+	sidebarSize := float32(w) * 0.25
+
+	//Global imgui settings
+	imgui.PushStyleColor(imgui.StyleColorText, imgui.Vec4{X: 1, Y: 0, Z: 1, W: 1})
+	imgui.PushFont(g.mainFont)
+
+	//Sidebar
+	imgui.SetNextWindowPos(imgui.Vec2{X: 0, Y: 0})
+	imgui.SetNextWindowSize(imgui.Vec2{X: sidebarSize, Y: float32(h)})
+	imgui.BeginV("sidebar", &open, imgui.WindowFlagsNoCollapse|imgui.WindowFlagsNoDecoration|imgui.WindowFlagsNoMove)
+	imgui.End()
+
+	//Text area
+	imgui.SetNextWindowPos(imgui.Vec2{X: sidebarSize, Y: 0})
+	imgui.SetNextWindowSize(imgui.Vec2{X: float32(w) - sidebarSize, Y: float32(h)})
+	imgui.BeginV("editor", &open, imgui.WindowFlagsNoCollapse|imgui.WindowFlagsNoDecoration|imgui.WindowFlagsNoMove)
+	imgui.Text(string(g.buffer))
+	imgui.End()
+
+	imgui.PopFont()
+	imgui.PopStyleColor()
+}
+
+func (g *Gopad) FrameEnd() {
+
+}
+
+func (g *Gopad) ShouldRun() bool {
+	return !g.Quitting
+}
+
+func (g *Gopad) GetWindow() *engine.Window {
+	return g.Win
+}
+
+func (g *Gopad) GetImGUI() nmageimgui.ImguiInfo {
+	return g.ImGUIInfo
+}
+
+func (g *Gopad) Deinit() {
+	g.Win.Destroy()
+}

res/shaders/imgui.frag.glsl

@@ -0,0 +1,13 @@
+#version 410
+
+uniform sampler2D Texture;
+
+in vec2 Frag_UV;
+in vec4 Frag_Color;
+
+out vec4 Out_Color;
+
+void main()
+{
+    Out_Color = vec4(Frag_Color.rgb, Frag_Color.a * texture(Texture, Frag_UV.st).r);
+}

res/shaders/imgui.vert.glsl

@@ -0,0 +1,17 @@
+#version 410
+
+uniform mat4 ProjMtx;
+
+in vec2 Position;
+in vec2 UV;
+in vec4 Color;
+
+out vec2 Frag_UV;
+out vec4 Frag_Color;
+
+void main()
+{
+    Frag_UV = UV;
+    Frag_Color = Color;
+    gl_Position = ProjMtx * vec4(Position.xy, 0, 1);
+}

windowflags.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"github.com/veandco/go-sdl2/sdl"
+)
+
+type WindowFlags int
+
+const (
+	WindowFlags_FULLSCREEN         WindowFlags = sdl.WINDOW_FULLSCREEN
+	WindowFlags_OPENGL             WindowFlags = sdl.WINDOW_OPENGL
+	WindowFlags_SHOWN              WindowFlags = sdl.WINDOW_SHOWN
+	WindowFlags_HIDDEN             WindowFlags = sdl.WINDOW_HIDDEN
+	WindowFlags_BORDERLESS         WindowFlags = sdl.WINDOW_BORDERLESS
+	WindowFlags_RESIZABLE          WindowFlags = sdl.WINDOW_RESIZABLE
+	WindowFlags_MINIMIZED          WindowFlags = sdl.WINDOW_MINIMIZED
+	WindowFlags_MAXIMIZED          WindowFlags = sdl.WINDOW_MAXIMIZED
+	WindowFlags_INPUT_GRABBED      WindowFlags = sdl.WINDOW_INPUT_GRABBED
+	WindowFlags_INPUT_FOCUS        WindowFlags = sdl.WINDOW_INPUT_FOCUS
+	WindowFlags_MOUSE_FOCUS        WindowFlags = sdl.WINDOW_MOUSE_FOCUS
+	WindowFlags_FULLSCREEN_DESKTOP WindowFlags = sdl.WINDOW_FULLSCREEN_DESKTOP
+	WindowFlags_FOREIGN            WindowFlags = sdl.WINDOW_FOREIGN
+	WindowFlags_ALLOW_HIGHDPI      WindowFlags = sdl.WINDOW_ALLOW_HIGHDPI
+	WindowFlags_MOUSE_CAPTURE      WindowFlags = sdl.WINDOW_MOUSE_CAPTURE
+	WindowFlags_ALWAYS_ON_TOP      WindowFlags = sdl.WINDOW_ALWAYS_ON_TOP
+	WindowFlags_SKIP_TASKBAR       WindowFlags = sdl.WINDOW_SKIP_TASKBAR
+	WindowFlags_UTILITY            WindowFlags = sdl.WINDOW_UTILITY
+	WindowFlags_TOOLTIP            WindowFlags = sdl.WINDOW_TOOLTIP
+	WindowFlags_POPUP_MENU         WindowFlags = sdl.WINDOW_POPUP_MENU
+	// WindowFlags_VULKAN             WindowFlags = sdl.WINDOW_VULKAN
+)