// resize resizes the window to the specified dimensions.
func resize(width, height int) {
gl.Viewport(0, 0, gl.Sizei(width), gl.Sizei(height))
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(-30.0, 30.0, -30.0, 30.0, -30.0, 30.0)
gl.MatrixMode(gl.MODELVIEW)
}
func InitViewport() {
gl.Viewport(0, 0, gl.Sizei(Width), gl.Sizei(Height))
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
x := gl.Double(float64(Height) / float64(Width))
gl.Frustum(-1./2., 1./2., -x/2, x/2, 10, 100)
}
func (w *Window) run() {
runtime.LockOSThread()
glfw.MakeContextCurrent(w.w)
defer glfw.MakeContextCurrent(nil)
// glfw should fire initial resize events to avoid this duplication (https://github.com/glfw/glfw/issues/62)
width, height := w.w.Size()
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, gl.Double(width), 0, gl.Double(height), -1, 1)
Resize(w, Pt(float64(width), float64(height)))
width, height = w.w.FramebufferSize()
gl.Viewport(0, 0, gl.Sizei(width), gl.Sizei(height))
gl.Enable(gl.BLEND)
gl.Enable(gl.POINT_SMOOTH)
gl.Enable(gl.LINE_SMOOTH)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
for !w.close {
select {
case f := <-w.do:
f()
case <-w.paint:
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
w.base().paint()
w.w.SwapBuffers()
}
}
}
func initScene() {
input.Init()
life = automata.NewLife(*flagRule, *flagSize, *flagDelay, *flagSeed)
input.Sim = life
go life.Run()
gl.ClearColor(0.0, 0.0, 0.0, 0.0)
gl.Viewport(0, 0, Width, Height)
}
func windowResizeCallback(window *glfw.Window, width, height int) {
paunchWindow.width = width
paunchWindow.height = height
for _, eventManager := range paunchWindow.eventManagers {
eventManager.RunWindowResizeEvent(width, height)
}
gl.Viewport(0, 0, gl.Sizei(width), gl.Sizei(height))
}
func (g *Game) RenderLocalEditor(region g2.Region) {
g.editor.Lock()
defer g.editor.Unlock()
g.editor.region = region
g.editor.camera.regionDims = linear.Vec2{float64(region.Dims.Dx), float64(region.Dims.Dy)}
levelDims := linear.Vec2{float64(g.Level.Room.Dx), float64(g.Level.Room.Dy)}
g.editor.camera.StandardRegion(levelDims.Scale(0.5), levelDims)
g.editor.camera.approachTarget()
gl.MatrixMode(gl.PROJECTION)
gl.PushMatrix()
gl.LoadIdentity()
defer gl.PopMatrix()
gl.PushAttrib(gl.VIEWPORT_BIT)
gl.Viewport(gl.Int(region.X), gl.Int(region.Y), gl.Sizei(region.Dx), gl.Sizei(region.Dy))
defer gl.PopAttrib()
current := &g.editor.camera.current
gl.Ortho(
gl.Double(current.mid.X-current.dims.X/2),
gl.Double(current.mid.X+current.dims.X/2),
gl.Double(current.mid.Y+current.dims.Y/2),
gl.Double(current.mid.Y-current.dims.Y/2),
gl.Double(1000),
gl.Double(-1000),
)
defer func() {
gl.MatrixMode(gl.PROJECTION)
gl.PopMatrix()
gl.MatrixMode(gl.MODELVIEW)
}()
gl.MatrixMode(gl.MODELVIEW)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
g.renderWalls()
g.renderEdges()
g.renderBases()
g.renderEntsAndAbilities()
g.renderProcesses()
g.editor.renderPathing(&g.Level.Room, g.local.pathingData)
switch g.editor.action {
case editorActionNone:
case editorActionPlaceBlock:
g.editor.renderPlaceBlock(g)
default:
base.Error().Printf("Unexpected editorAction: %v", g.editor.action)
}
}
func initScene(width, height int, init func()) (err error) {
gl.Disable(gl.DEPTH_TEST)
gl.ClearColor(0.5, 0.5, 0.5, 0.0)
gl.Viewport(0, 0, gl.Sizei(width), gl.Sizei(height))
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, gl.Double(width), gl.Double(height), 0, 0, 1)
gl.MatrixMode(gl.MODELVIEW)
init()
return
}
func (s *Scene) Init() (err error) {
runtime.LockOSThread()
gl.Enable(gl.TEXTURE_2D)
gl.Enable(gl.DEPTH_TEST)
gl.ClearColor(0.0, 0.0, 0.0, 0.0)
gl.ClearDepth(1)
//gl.DepthFunc(gl.LEQUAL)
gl.Viewport(0, 0, Width, Height)
mm.init()
return
}
func (a *app) OnResize(w, h int) {
oaspect := float64(a.imgW()) / float64(a.imgH())
haspect := float64(w) / float64(h)
vaspect := float64(h) / float64(w)
var scx, scy float64
if oaspect > haspect {
scx = 1
scy = haspect / oaspect
} else {
scx = vaspect * oaspect
scy = 1
}
gl.Viewport(0, 0, gl.Sizei(w), gl.Sizei(h))
gl.LoadIdentity()
gl.Scaled(gl.Double(scx), gl.Double(scy), 1)
}
func SetUpCamera(
screenWidth int32,
screenHeight int32,
lb *LevelBlueprint,
playerIndex int32) {
pb := &lb.Players[playerIndex]
// Calculate the distance between the near plane and the camera. We want
// (PaddleAreaWidth / 2) / cameraDist = tan(CameraHorzFovDegrees / 2)
t := math.Tan(math.Pi * Config.CameraHorzFovDegrees / 360)
cameraDist := pb.PaddleAreaWidth / (2 * t)
cameraPos := pb.PaddleAreaCenter.Minus(
pb.Orientation.Forward.Times(cameraDist))
// Set up the projection matrix.
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Viewport(0, 0, gl.Sizei(screenWidth), gl.Sizei(screenHeight))
gl.Frustum(
gl.Double(-pb.PaddleAreaWidth/2), gl.Double(pb.PaddleAreaWidth/2),
gl.Double(-pb.PaddleAreaHeight/2), gl.Double(pb.PaddleAreaHeight/2),
gl.Double(cameraDist), gl.Double(cameraDist+Config.ViewDepth))
// Set up the modelview matrix.
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
transformation := [16]gl.Double{
gl.Double(pb.Orientation.Right.X),
gl.Double(pb.Orientation.Up.X),
gl.Double(-pb.Orientation.Forward.X),
gl.Double(0.0),
gl.Double(pb.Orientation.Right.Y),
gl.Double(pb.Orientation.Up.Y),
gl.Double(-pb.Orientation.Forward.Y),
gl.Double(0.0),
gl.Double(pb.Orientation.Right.Z),
gl.Double(pb.Orientation.Up.Z),
gl.Double(-pb.Orientation.Forward.Z),
gl.Double(0.0),
gl.Double(0.0), gl.Double(0.0), gl.Double(0.0), gl.Double(1.0)}
gl.MultMatrixd(&transformation[0])
gl.Translated(
gl.Double(-cameraPos.X),
gl.Double(-cameraPos.Y),
gl.Double(-cameraPos.Z))
}
func (g *Game) RenderLocalGame(region g2.Region) {
g.local.Camera.regionDims = linear.Vec2{float64(region.Dims.Dx), float64(region.Dims.Dy)}
// func (g *Game) renderLocalHelper(region g2.Region, local *LocalData, camera *cameraInfo, side int) {
g.local.Camera.FocusRegion(g, 0)
gl.MatrixMode(gl.PROJECTION)
gl.PushMatrix()
gl.LoadIdentity()
// Set the viewport so that we only render into the region that we're supposed
// to render to.
// TODO: Check if this works on all graphics cards - I've heard that the opengl
// spec doesn't actually require that viewport does any clipping.
gl.PushAttrib(gl.VIEWPORT_BIT)
gl.Viewport(gl.Int(region.X), gl.Int(region.Y), gl.Sizei(region.Dx), gl.Sizei(region.Dy))
defer gl.PopAttrib()
current := &g.local.Camera.current
gl.Ortho(
gl.Double(current.mid.X-current.dims.X/2),
gl.Double(current.mid.X+current.dims.X/2),
gl.Double(current.mid.Y+current.dims.Y/2),
gl.Double(current.mid.Y-current.dims.Y/2),
gl.Double(1000),
gl.Double(-1000),
)
defer func() {
gl.MatrixMode(gl.PROJECTION)
gl.PopMatrix()
gl.MatrixMode(gl.MODELVIEW)
}()
gl.MatrixMode(gl.MODELVIEW)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
level := g.Level
zoom := current.dims.X / float64(region.Dims.Dx)
level.ManaSource.Draw(zoom, float64(level.Room.Dx), float64(level.Room.Dy))
g.renderWalls()
g.renderEdges()
g.renderBases()
g.renderEntsAndAbilities()
g.renderProcesses()
g.RenderLosMask()
}
func PositionCamera(x, y gl.Double, width, height gl.Sizei) {
texs.Disable2d()
texs.Enable2d(x, y, 1000, 900)
gl.Viewport(0, 0, 1000, 900)
gl.LoadIdentity()
title := strconv.FormatInt(int64(x), 10) + " , " + strconv.FormatInt(int64(y), 10)
glfw.SetWindowTitle(title)
X = x
y = Y
Width = width
Height = height
//UpdateActiveSystems()
}
func initScene() {
gl.Disable(gl.TEXTURE_2D)
gl.Disable(gl.DEPTH_TEST)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Disable(gl.ALPHA_TEST)
gl.Enable(gl.LINE_SMOOTH)
gl.Hint(gl.LINE_SMOOTH_HINT, gl.NICEST)
gl.PolygonMode(gl.FRONT_AND_BACK, gl.LINE)
gl.LineWidth(1.0)
gl.ClearColor(0.0, 0.0, 0.0, 0.0)
gl.ClearDepth(1)
//gl.DepthFunc(gl.LEQUAL)
gl.Viewport(0, 0, Width, Height)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
perspective(110.0, 1.0, 4, 8192)
}
func glInit(width, height int) {
gl.Init()
gl.Enable(gl.TEXTURE_2D)
gl.PixelStorei(gl.UNPACK_ALIGNMENT, 1)
gl.Viewport(0, 0, gl.Sizei(width), gl.Sizei(height))
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, gl.Double(width), gl.Double(height), 0, -1, 1)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.EnableClientState(gl.VERTEX_ARRAY)
gl.EnableClientState(gl.COLOR_ARRAY)
gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
gl.VertexPointer(2, gl.FLOAT, 0, gl.Pointer(&vs[0]))
gl.ColorPointer(3, gl.UNSIGNED_BYTE, 0, gl.Pointer(&cs[0]))
gl.TexCoordPointer(2, gl.FLOAT, 0, gl.Pointer(&ts[0]))
}
func (o *OpenGl) initScene() (err error) {
gl.ClearColor(0.0, 0.0, 0.0, 0.0)
gl.ClearDepth(1)
gl.DepthFunc(gl.LEQUAL)
ambient := []gl.Float{0.5, 0.5, 0.5, 1}
diffuse := []gl.Float{1, 1, 1, 1}
position := []gl.Float{-5, 5, 10, 0}
gl.Lightfv(gl.LIGHT0, gl.AMBIENT, &ambient[0])
gl.Lightfv(gl.LIGHT0, gl.DIFFUSE, &diffuse[0])
gl.Lightfv(gl.LIGHT0, gl.POSITION, &position[0])
gl.Viewport(0, 0, gl.Sizei(o.width), gl.Sizei(o.height))
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Frustum(-1, 1, -1, 1, 1.0, 10.0)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
return nil
}
func initScene() (err error) {
gl.Enable(gl.TEXTURE_2D)
gl.Enable(gl.DEPTH_TEST)
gl.Enable(gl.LIGHTING)
gl.ClearColor(0.5, 0.5, 0.5, 0.0)
gl.ClearDepth(1)
gl.DepthFunc(gl.LEQUAL)
gl.Lightfv(gl.LIGHT0, gl.AMBIENT, &ambient[0])
gl.Lightfv(gl.LIGHT0, gl.DIFFUSE, &diffuse[0])
gl.Lightfv(gl.LIGHT0, gl.POSITION, &lightpos[0])
gl.Enable(gl.LIGHT0)
gl.Viewport(0, 0, Width, Height)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Frustum(-1, 1, -1, 1, 1.0, 10.0)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
texture, err = createTextureFromBytes(gopher_png[:])
return
}
func initScene() {
gl.Enable(gl.DEPTH_TEST)
gl.Enable(gl.LIGHTING)
gl.ClearColor(0.1, 0.1, 0.6, 1.0)
gl.ClearDepth(1)
gl.DepthFunc(gl.LEQUAL)
gl.Lightfv(gl.LIGHT0, gl.AMBIENT, &ambient[0])
gl.Lightfv(gl.LIGHT0, gl.DIFFUSE, &diffuse[0])
gl.Lightfv(gl.LIGHT0, gl.POSITION, &lightPos[0])
gl.Enable(gl.LIGHT0)
gl.Viewport(0, 0, Width, Height)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Frustum(-1, 1, -1, 1, 1.0, 1000.0)
gl.Rotatef(20, 1, 0, 0)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.PushMatrix()
return
}
func (w *Window) registerCallbacks() {
w.w.OnFocus(func(focused bool) {
if focused {
go doMain(func() {
for i, w2 := range windows {
if w2 == w {
windows = append(append([]*Window{w}, windows[:i]...), windows[i+1:]...)
break
}
}
})
}
})
w.w.OnClose(w.Close)
w.w.OnResize(func(width, height int) {
w.Do(func() {
s := Pt(float64(width), float64(height))
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, gl.Double(s.X), 0, gl.Double(s.Y), -1, 1)
Resize(w.Self, s)
if w.centralView != nil {
Resize(w.centralView, s)
}
})
})
w.w.OnFramebufferResize(func(width, height int) {
w.Do(func() {
gl.Viewport(0, 0, gl.Sizei(width), gl.Sizei(height))
})
})
k := KeyEvent{}
w.w.OnKey(func(key, scancode, action, mods int) {
w.Do(func() {
k.Key = key
k.action = action
k.Repeat = action == glfw.Repeat
k.Shift = mods&glfw.ModShift != 0
k.Ctrl = mods&glfw.ModControl != 0
k.Alt = mods&glfw.ModAlt != 0
k.Super = mods&glfw.ModSuper != 0
k.Command = commandKey(k)
if key >= KeyEscape || action == glfw.Release {
k.Text = ""
if w.keyFocus != nil {
if k.action != glfw.Release {
w.keyFocus.KeyPress(k)
} else {
w.keyFocus.KeyRelease(k)
}
}
}
})
})
w.w.OnChar(func(char rune) {
w.Do(func() {
if char < KeyEscape {
k.Text = string(char)
if w.keyFocus != nil {
if k.action != glfw.Release {
w.keyFocus.KeyPress(k)
} else {
w.keyFocus.KeyRelease(k)
}
}
}
})
})
m := MouseEvent{}
w.w.OnMouseMove(func(x, y float64) {
m.Pos = Pt(x, y)
m.Move, m.Press, m.Release, m.Drag = true, false, false, false
w.mouse(m)
})
w.w.OnMouseButton(func(button, action, mods int) {
m.Button = button
m.Move, m.Press, m.Release, m.Drag = false, action == glfw.Press, action == glfw.Release, false
w.mouse(m)
})
w.w.OnScroll(func(dx, dy float64) {
w.Do(func() {
s := ScrollEvent{m.Pos, Pt(dx, -dy)}
s.Pos = w.mapToWindow(s.Pos)
v, _ := viewAtFunc(w.Self, s.Pos, func(v View) View {
v, _ = v.(ScrollerView)
return v
}).(ScrollerView)
if v != nil {
s.Pos = Map(s.Pos, w.Self, v)
v.Scroll(s)
}
})
})
}
func (w *Window) framebufferResized(width, height int) {
w.bufWidth, w.bufHeight = gl.Sizei(width), gl.Sizei(height)
gl.Viewport(0, 0, w.bufWidth, w.bufHeight)
}
func (g *Game) renderLocalArchitect(region g2.Region, local *LocalData) {
local.architect.camera.doArchitectFocusRegion(g, local.sys)
gl.MatrixMode(gl.PROJECTION)
gl.PushMatrix()
gl.LoadIdentity()
// Set the viewport so that we only render into the region that we're supposed
// to render to.
// TODO: Check if this works on all graphics cards - I've heard that the opengl
// spec doesn't actually require that viewport does any clipping.
gl.PushAttrib(gl.VIEWPORT_BIT)
gl.Viewport(gl.Int(region.X), gl.Int(region.Y), gl.Sizei(region.Dx), gl.Sizei(region.Dy))
defer gl.PopAttrib()
current := local.architect.camera.current
gl.Ortho(
gl.Double(current.mid.X-current.dims.X/2),
gl.Double(current.mid.X+current.dims.X/2),
gl.Double(current.mid.Y+current.dims.Y/2),
gl.Double(current.mid.Y-current.dims.Y/2),
gl.Double(1000),
gl.Double(-1000),
)
defer func() {
gl.MatrixMode(gl.PROJECTION)
gl.PopMatrix()
gl.MatrixMode(gl.MODELVIEW)
}()
gl.MatrixMode(gl.MODELVIEW)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
zoom := local.architect.camera.current.dims.X / float64(region.Dims.Dx)
level := g.Levels[GidInvadersStart]
level.ManaSource.Draw(local, zoom, float64(level.Room.Dx), float64(level.Room.Dy))
gl.Begin(gl.LINES)
gl.Color4d(1, 1, 1, 1)
for _, poly := range g.Levels[GidInvadersStart].Room.Walls {
for i := range poly {
seg := poly.Seg(i)
gl.Vertex2d(gl.Double(seg.P.X), gl.Double(seg.P.Y))
gl.Vertex2d(gl.Double(seg.Q.X), gl.Double(seg.Q.Y))
}
}
gl.End()
gl.Color4ub(0, 255, 0, 255)
for side, pos := range g.Levels[GidInvadersStart].Room.Starts {
base.GetDictionary("luxisr").RenderString(fmt.Sprintf("S%d", side), pos.X, pos.Y, 0, 100, gui.Center)
}
gl.Color4d(1, 1, 1, 1)
for _, ent := range g.temp.AllEnts {
ent.Draw(g, -1) // TODO: Side isn't defined for architect yet
}
gl.Disable(gl.TEXTURE_2D)
g.renderLosMask(local)
if local.architect.abs.activeAbility != nil {
local.architect.abs.activeAbility.Draw("", g, -1) // TODO: side not defined for architect
}
}
// For invaders or moba, does a lot of basic stuff common to both
func (g *Game) renderLocalHelper(region g2.Region, local *LocalData, camera *cameraInfo, side int) {
camera.doInvadersFocusRegion(g, side)
gl.MatrixMode(gl.PROJECTION)
gl.PushMatrix()
gl.LoadIdentity()
// Set the viewport so that we only render into the region that we're supposed
// to render to.
// TODO: Check if this works on all graphics cards - I've heard that the opengl
// spec doesn't actually require that viewport does any clipping.
gl.PushAttrib(gl.VIEWPORT_BIT)
gl.Viewport(gl.Int(region.X), gl.Int(region.Y), gl.Sizei(region.Dx), gl.Sizei(region.Dy))
defer gl.PopAttrib()
current := camera.current
gl.Ortho(
gl.Double(current.mid.X-current.dims.X/2),
gl.Double(current.mid.X+current.dims.X/2),
gl.Double(current.mid.Y+current.dims.Y/2),
gl.Double(current.mid.Y-current.dims.Y/2),
gl.Double(1000),
gl.Double(-1000),
)
defer func() {
gl.MatrixMode(gl.PROJECTION)
gl.PopMatrix()
gl.MatrixMode(gl.MODELVIEW)
}()
gl.MatrixMode(gl.MODELVIEW)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
level := g.Levels[GidInvadersStart]
zoom := camera.current.dims.X / float64(region.Dims.Dx)
level.ManaSource.Draw(local, zoom, float64(level.Room.Dx), float64(level.Room.Dy))
gl.Color4d(1, 1, 1, 1)
var expandedPoly linear.Poly
for _, poly := range g.Levels[GidInvadersStart].Room.Walls {
// Don't draw counter-clockwise polys, specifically this means don't draw
// the boundary of the level.
if poly.IsCounterClockwise() {
continue
}
// KLUDGE: This will expand the polygon slightly so that it actually shows
// up when the los shadows are drawn over it. Eventually there should be
// separate los polys, colision polys, and draw polys so that this isn't
// necessary.
gl.Begin(gl.TRIANGLE_FAN)
expandPoly(poly, &expandedPoly)
for _, v := range expandedPoly {
gl.Vertex2d(gl.Double(v.X), gl.Double(v.Y))
}
gl.End()
}
gui.SetFontColor(0, 255, 0, 255)
for side, pos := range g.Levels[GidInvadersStart].Room.Starts {
base.GetDictionary("luxisr").RenderString(fmt.Sprintf("S%d", side), pos.X, pos.Y, 0, 100, gui.Center)
}
gl.Color4d(1, 1, 1, 1)
for _, ent := range g.temp.AllEnts {
ent.Draw(g, side)
}
gl.Disable(gl.TEXTURE_2D)
if local.mode != LocalModeMoba {
panic("Need to implement drawing players from standard mode data")
}
for i := range local.moba.players {
p := &local.moba.players[i]
if p.abs.activeAbility != nil {
p.abs.activeAbility.Draw(p.gid, g, side)
}
}
for _, proc := range g.Processes {
proc.Draw(Gid(""), g, side)
}
gl.Color4ub(0, 0, 255, 200)
g.renderLosMask(local)
}
func main() {
runtime.LockOSThread()
flag.Parse()
if *workers <= 0 {
*workers = 1
}
runtime.GOMAXPROCS(*workers + 1)
buildPalette()
sdl.Init(sdl.INIT_VIDEO)
defer sdl.Quit()
if !*noVSync {
sdl.GL_SetAttribute(sdl.GL_SWAP_CONTROL, 1)
}
if sdl.SetVideoMode(512, 512, 32, sdl.OPENGL) == nil {
panic("sdl error")
}
sdl.WM_SetCaption("Gomandel", "Gomandel")
if err := gl.Init(); err != nil {
panic(err)
}
gl.Enable(gl.TEXTURE_2D)
gl.Viewport(0, 0, 512, 512)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, 512, 512, 0, -1, 1)
gl.ClearColor(0, 0, 0, 0)
//-----------------------------------------------------------------------------
var dndDragging bool = false
var dnd3 bool = false
var dndStart Point
var dndEnd Point
initialRect := Rect{-1.5, -1.5, 3, 3}
rect := initialRect
tm := NewTileManager(512, 512)
tm.ZoomRequest(&rect)
running := true
for running {
for {
var event interface{}
select {
case event = <-sdl.Events:
default:
}
if event == nil {
break
}
switch e := event.(type) {
case sdl.QuitEvent:
running = false
case sdl.MouseButtonEvent:
if e.Type == sdl.MOUSEBUTTONDOWN {
dndDragging = true
dndStart.X = gl.Int(e.X)
dndStart.Y = gl.Int(e.Y)
dndEnd = dndStart
if e.Button == 3 {
dnd3 = true
} else {
dndDragging = true
}
} else {
dndDragging = false
dndEnd.X = gl.Int(e.X)
dndEnd.Y = gl.Int(e.Y)
switch e.Button {
case 1:
rect = rectFromSelection(dndStart, dndEnd, 512, 512, rect)
tm.ZoomRequest(&rect)
case 2:
rect = initialRect
tm.ZoomRequest(&rect)
case 3:
dnd3 = false
}
}
case sdl.MouseMotionEvent:
if dnd3 {
dndEnd.X = gl.Int(e.X)
dndEnd.Y = gl.Int(e.Y)
rect = moveRectBy(rect, dndStart, dndEnd, 512, 512)
tm.MoveRequest(rect)
dndStart = dndEnd
} else if dndDragging {
dndEnd.X = gl.Int(e.X)
dndEnd.Y = gl.Int(e.Y)
}
}
}
tm.Update()
gl.Clear(gl.COLOR_BUFFER_BIT)
tm.Draw()
gl.BindTexture(gl.TEXTURE_2D, 0)
if dndDragging {
drawSelection(dndStart, dndEnd)
}
sdl.GL_SwapBuffers()
}
}