feat: fixed camera matrix bufferization.

camera.go

@@ -7,7 +7,8 @@ type Camera struct {
 	// that the camera shows.
 	ShaderOptions
 	Transform
-	buf *Matrix
+	buffered bool
+	buf Matrix
 	engine *Engine
 }
 
@@ -24,20 +25,20 @@ func (e *Engine) NewCamera() *Camera {
 // transform to display on the screen.
 func (c *Camera)RealMatrix() Matrix {
 	// Bufferization
-	if c.buf != nil {
-		return *(c.buf)
+	if c.buffered {
+		return c.buf
 	}
-	g := &Matrix{}
+	g := Matrix{}
 	g.Translate(-c.Position.X, -c.Position.Y)
 	g.Rotate(c.Rotation)
 	siz := c.engine.AbsWinSize()
 	g.Translate(c.Around.X * siz.X, c.Around.Y * siz.Y)
 	g.Scale(c.Scale.X, c.Scale.Y)
 
-
 	c.buf = g
+	c.buffered = true
 
-	return *g
+	return g
 }
 
 // The matrix to convert things into the 

cmd/test/main.go

@@ -3,6 +3,7 @@ package main
 import (
 	"vultras.su/core/gg"
 	"github.com/hajimehoshi/ebiten/v2/examples/resources/images"
+	_ "github.com/silbinarywolf/preferdiscretegpu"
 	"bytes"
 	"log"
 	//"strings"
@@ -34,6 +35,7 @@ func main() {
 		Width:  720,
 		Height: 480,
 		VSync:  true,
+		Fullscreen: true,
 	})
 
 	var err error

cmd/test/trianlge.go

@@ -63,6 +63,15 @@ func (t *Tri) Update(c *Context) {
 	case gg.KeyV:
 			t.Rotation += d * gg.Pi * 0.3 * dt
 	case gg.Key2 :
+		if t.Spawned {
+			break
+		}
+		t.Triangles = append(t.Triangles, gg.Triangle{
+			gg.V(0, 10 + gg.Float(counter)),
+			gg.V(100 + gg.Float(counter), 0),
+			gg.V(0, -10 - gg.Float(counter)),
+		})
+	case gg.Key3 :
 		if t.Spawned {
 			break
 		}

engine.go

@@ -40,6 +40,10 @@ type WindowConfig struct {
 	VSync bool
 }
 
+type Objects struct {
+	store []Objecter
+}
+
 // The main structure that represents current state of [game] engine.
 type Engine struct {
 	wcfg *WindowConfig
@@ -47,7 +51,7 @@ type Engine struct {
 	// The main holder for objects.
 	// Uses the map structure to quickly
 	// delete and create new objects.
-	Objects maps.Map[Objecter, struct{}]
+	Objects *Objects
 
 	// The main camera to display in window.
 	// If is set to nil then the engine will panic.
@@ -103,16 +107,22 @@ func NewEngine(
 	ret.Camera = ret.NewCamera()
 	ret.outerEvents = make(EventChan)
 	ret.handleEvents = make(EventChan)
-	ret.Objects = maps.NewOrdered[Objecter, struct{}]()
+	ret.Objects = &Objects{}
 	ret.buttons = MouseButtonMap{}
 	return ret
 }
 
 // Get the real window size in the current context.
 func (c *Engine) RealWinSize() Vector {
+	var w, h int
+	if c.wcfg.Fullscreen {
+		w, h = ebiten.ScreenSizeInFullscreen()
+	} else {
+		w, h = c.wcfg.Width, c.wcfg.Height
+	}
 	return V(
-		Float(c.wcfg.Width),
-		Float(c.wcfg.Height),
+		Float(w),
+		Float(h),
 	)
 }
 
@@ -127,35 +137,32 @@ func (e *Engine) EventInput() EventChan {
 // Add new object considering what
 // interfaces it implements.
 func (e *Engine) Spawn(b Objecter) error {
-	if e.Objects.Has(b) {
+	/*if e.Objects.Has(b) {
 		return ObjectExistErr
-	}
+	}*/
 
 	b.Start(&Context{Engine: e})
 	obj := b.GetObject()
 	obj.input = make(chan *Context)
 	go func() {
 		for c := range obj.input {
-			switch c.typ {
-			case updateContext:
-				b.Update(c)
-			}
+			b.Update(c)
 			e.wg.Done()
 		}
 	}()
-	e.Objects.Set(b, struct{}{})
+	e.Objects.store = append(e.Objects.store, b)
 
 	return nil
 }
 
 // Delete object from Engine.
 func (e *Engine) Del(b Objecter) error {
-	if !e.Objects.Has(b) {
+	/*if !e.Objects.Has(b) {
 		return ObjectNotExistErr
 	}
 
 	b.Delete(&Context{Engine: e})
-	e.Objects.Del(b)
+	e.Objects.Del(b)*/
 
 	return nil
 }
@@ -206,7 +213,6 @@ func (e *Engine) AbsCursorPosition() Vector {
 func (e *engine) Update() error {
 	eng := (*Engine)(e)
 
-	e.dt = time.Since(e.lastTime).Seconds()
 	// Buffering the context for faster.
 
 	e.prevKeys = e.keys
@@ -274,20 +280,20 @@ func (e *engine) Update() error {
 		typ: updateContext,
 		Events: events,
 	}
-	for object := range e.Objects.KeyChan() {
+	for _, object := range e.Objects.store {
 		e.wg.Add(1)
 		object.Input() <- c
 	}
 	e.wg.Wait()
 
-	e.lastTime = time.Now()
 	return nil
 }
 
 func (e *engine) Draw(i *ebiten.Image) {
+	e.dt = time.Since(e.lastTime).Seconds()
 	eng := (*Engine)(e)
 	m := map[Layer][]Drawer{}
-	for object := range eng.Objects.KeyChan() {
+	for _, object := range eng.Objects.store {
 		// Skipping the ones we do not need to draw.
 		if !object.IsVisible() {
 			continue
@@ -311,8 +317,10 @@ func (e *engine) Draw(i *ebiten.Image) {
 			drawer.Draw(c)
 		}
 	}
+
 	// Empty the buff to generate it again.
-	eng.Camera.buf = nil
+	eng.Camera.buffered = false
+	e.lastTime = time.Now()
 }
 
 func (e *engine) Layout(ow, oh int) (int, int) {
@@ -341,6 +349,7 @@ func (e *Engine) Run() error {
 	ebiten.SetWindowSize(e.wcfg.Width, e.wcfg.Height)
 	ebiten.SetWindowSizeLimits(1, 1, e.wcfg.Width, e.wcfg.Height)
 	
+	ebiten.SetFullscreen(e.wcfg.Fullscreen)
 	ebiten.SetVsyncEnabled(e.wcfg.VSync)
 
 	e.lastTime = time.Now()

go.mod

@@ -7,6 +7,8 @@ toolchain go1.21.3
 require (
 	github.com/di4f/gods v0.0.0-20231214190239-d523423d8d5e
 	github.com/hajimehoshi/ebiten/v2 v2.6.0-alpha.3.0.20230521122940-90562ee84b9b
+	github.com/silbinarywolf/preferdiscretegpu v1.0.0
+	golang.org/x/image v0.7.0
 )
 
 require (
@@ -14,7 +16,6 @@ require (
 	github.com/go-gl/glfw/v3.3/glfw v0.0.0-20221017161538-93cebf72946b // indirect
 	github.com/jezek/xgb v1.1.0 // indirect
 	golang.org/x/exp/shiny v0.0.0-20230522175609-2e198f4a06a1 // indirect
-	golang.org/x/image v0.7.0 // indirect
 	golang.org/x/mobile v0.0.0-20230427221453-e8d11dd0ba41 // indirect
 	golang.org/x/sync v0.2.0 // indirect
 	golang.org/x/sys v0.8.0 // indirect

go.sum

@@ -8,6 +8,8 @@ github.com/hajimehoshi/ebiten/v2 v2.6.0-alpha.3.0.20230521122940-90562ee84b9b h1
 github.com/hajimehoshi/ebiten/v2 v2.6.0-alpha.3.0.20230521122940-90562ee84b9b/go.mod h1:+fFI6Ag5YvbX1ivNQD2TxNhpWFDPuxEoew421TTQAxI=
 github.com/jezek/xgb v1.1.0 h1:wnpxJzP1+rkbGclEkmwpVFQWpuE2PUGNUzP8SbfFobk=
 github.com/jezek/xgb v1.1.0/go.mod h1:nrhwO0FX/enq75I7Y7G8iN1ubpSGZEiA3v9e9GyRFlk=
+github.com/silbinarywolf/preferdiscretegpu v1.0.0 h1:tuvXLRCnoFMFyk74/8PFvO0B5rjDmXm0JgNTaOYAHT0=
+github.com/silbinarywolf/preferdiscretegpu v1.0.0/go.mod h1:h3s2GkfAP2sWqoS7v/PxAlFOQ1azMRsZxUJNw47QhLc=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=