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 (g *Gui) Draw() {
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(gl.Double(g.region.X), gl.Double(g.region.X+g.region.Dx), gl.Double(g.region.Y+g.region.Dy), gl.Double(g.region.Y), 1000, -1000)
gl.ClearColor(0, 0, 0, 1)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
g.root.Draw(g.region, &styleStack{})
}
func (o *OpenGl) set2dView() {
gl.Disable(gl.TEXTURE_2D)
gl.Disable(gl.DEPTH_TEST)
gl.Disable(gl.LIGHTING)
gl.Disable(gl.LIGHT0)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, gl.Double(o.width), 0, gl.Double(o.height), -1, 1)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
}
func (g *Gui) Draw() {
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
region := g.root.Render_region
gl.Ortho(gl.Double(region.X), gl.Double(region.X+region.Dx), gl.Double(region.Y), gl.Double(region.Y+region.Dy), 1000, -1000)
gl.ClearColor(0, 0, 0, 1)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
g.root.Draw(region)
if g.FocusWidget() != nil {
g.FocusWidget().DrawFocused(region)
}
}
func drawScene() {
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Rotated(-90, 1, 0, 0)
//gl.Rotated(90, 0, 0, 1)
gl.Rotated(gl.Double(-viewAngles[2]), 1, 0, 0)
gl.Rotated(gl.Double(-viewAngles[0]), 0, 1, 0)
gl.Rotated(gl.Double(-viewAngles[1]), 0, 0, 1)
gl.Translated(gl.Double(viewOrg[0]), gl.Double(viewOrg[1]), gl.Double(viewOrg[2]))
var r, g, b gl.Ubyte
for i, face := range model.Faces {
r = gl.Ubyte(i) + 100
g = gl.Ubyte(i>>1) + 100
b = gl.Ubyte(i>>2) + 100
if model.Triangle {
gl.Begin(gl.TRIANGLES)
} else {
gl.Begin(gl.LINES)
}
gl.Color4ub(r, g, b, 0xff)
for _, v := range face.Verts {
gl.Vertex3d(gl.Double(v.Pos[0]), gl.Double(v.Pos[1]), gl.Double(v.Pos[2]))
}
gl.End()
}
}
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 drawScene() {
fps()
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
if input.Zoom > 0 {
gl.Ortho(0, gl.Double(float64(*flagSize)/input.Zoom), gl.Double(float64(*flagSize)/input.Zoom), 0, -1, 1.0)
}
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Translatef(gl.Float(input.TransX*1), gl.Float(input.TransY*1), 0)
drawGrid()
drawCells()
}
func (w *Window) run(init func(w *Window)) {
runtime.LockOSThread()
glfw.MakeContextCurrent(w.w)
defer glfw.MakeContextCurrent(nil)
init(w)
// glfw should fire initial resize events to avoid this duplication (https://github.com/glfw/glfw/issues/62)
w.resized(w.w.Size())
w.framebufferResized(w.w.FramebufferSize())
gl.Enable(gl.SCISSOR_TEST)
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.Scissor(0, 0, w.bufWidth, w.bufHeight)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
w.base().paint()
w.w.SwapBuffers()
}
}
}
// 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 getPlayers(console *base.Console) []gin.DeviceId {
var ct controllerTracker
gin.In().RegisterEventListener(&ct)
defer gin.In().UnregisterEventListener(&ct)
ticker := time.Tick(time.Millisecond * 17)
start := time.Time{}
readyDuration := time.Second * 2
for start.IsZero() || time.Now().Sub(start) < readyDuration {
<-ticker
sys.Think()
if ct.Ready() && start.IsZero() {
start = time.Now()
}
if !ct.Ready() {
start = time.Time{}
}
render.Queue(func() {
defer console.Draw(0, 0, wdx, wdy)
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.Disable(gl.DEPTH_TEST)
gui.SetFontColor(1, 1, 1, 1)
gl.Disable(gl.TEXTURE_2D)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(gl.Double(0), gl.Double(wdx), gl.Double(wdy), gl.Double(0), 1000, -1000)
gl.ClearColor(0, 0, 0, 1)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
base.GetDictionary("crackin").RenderString(fmt.Sprintf("Num players: %d", len(ct.ids)), float64(wdx)/2, 300, 0, 100, gui.Center)
base.GetDictionary("crackin").RenderString(fmt.Sprintf("Num ready: %d", ct.NumReady()), float64(wdx)/2, 400, 0, 100, gui.Center)
if !start.IsZero() {
base.GetDictionary("crackin").RenderString(fmt.Sprintf("Starting in %2.2f", (readyDuration-time.Now().Sub(start)).Seconds()), float64(wdx)/2, 500, 0, 100, gui.Center)
}
})
render.Queue(func() {
sys.SwapBuffers()
})
render.Purge()
}
var devices []gin.DeviceId
for id := range ct.ids {
devices = append(devices, id)
}
return devices
}
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))
}
// Set the GL modelview matrix to match view position and orientation.
func UpdateViewpos() {
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Translatef(gl.Float(Viewpos[0]), gl.Float(Viewpos[1]), gl.Float(Viewpos[2]))
gl.Rotatef(gl.Float(Rot[0]*2), 1, 0, 0)
gl.Rotatef(gl.Float(Rot[1]*2), 0, 1, 0)
gl.Rotatef(gl.Float(Rot[2]*2), 0, 0, 1)
}
func mainLoop(client sgf.ClientEngine, controllers []gin.DeviceId, console *base.Console) {
client.MakeRequest(game.Join{Rebels: make([]*game.RebelPlayer, 2)})
ticker := time.Tick(time.Millisecond * 17)
render.Queue(func() {
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
})
for {
<-ticker
if gin.In().GetKey(gin.AnyEscape).FramePressCount() != 0 {
return
}
sys.Think()
render.Queue(func() {
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.Disable(gl.DEPTH_TEST)
gui.SetFontColor(1, 1, 1, 1)
gl.Disable(gl.TEXTURE_2D)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(gl.Double(0), gl.Double(wdx), gl.Double(wdy), gl.Double(0), 1000, -1000)
gl.ClearColor(0, 0, 0, 1)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
base.GetDictionary("crackin").RenderString("Waiting on some nubs", float64(wdx)/2, 300, 0, 100, gui.Center)
})
client.RLock()
g := client.Game().(*game.Game)
mode := g.Mode
client.RUnlock()
if mode == game.ModeWaiting {
} else if mode == game.ModeProgram {
programLoop(client, controllers, console)
} else if mode == game.ModeRun {
}
render.Queue(func() {
sys.SwapBuffers()
})
render.Purge()
}
}
func Enable2d(x1, y1, w, h gl.Double) {
// Save a copy of the proj matrix so we can restore it
// when we want to do more 3d rendering
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
// Set up orthographic projection
gl.Ortho(x1, x1+w, y1, y1+h, 0.0, 1)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
// Make sure depth testing and lighting are disabled for 2d redering
// until we are fninished rendering in 2d
gl.PushAttrib(gl.DEPTH_BUFFER_BIT | gl.LIGHTING_BIT)
gl.Disable(gl.DEPTH_TEST)
gl.Disable(gl.LIGHTING)
}
func (w *Window) resized(width, height int) {
wid, hei := float64(width), float64(height)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, gl.Double(wid), 0, gl.Double(hei), -1, 1)
w.Self.Resize(wid, hei)
if w.centralView != nil {
w.centralView.Resize(wid, hei)
}
}
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 (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 (o *OpenGl) set3dView() {
gl.Enable(gl.TEXTURE_2D)
gl.Enable(gl.DEPTH_TEST)
gl.Enable(gl.LIGHTING)
gl.Enable(gl.LIGHT0)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
//gl.Perspective(cam.Zoom(), o.mW / o.mH, cam.Near(), cam.Far())
gl.MatrixMode(gl.MODELVIEW)
//e := o.Camera.EYE()
//a := o.Camera.AT()
//u := o.Camera.UP()
//gl.LookAt(e.X, e.Y, e.Z, a.X, a.Y, a.Z, u.X, u.Y, u.Z)
}
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 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 (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 (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 DrawStarTex(t *data.Star) {
// Find the center point of the texture to rotate around
xav := (t.X1 + t.X2) / 2
yav := (t.Y1 + t.Y2) / 2
//Translate there, rotate, translate back
gl.MatrixMode(gl.MODELVIEW)
gl.Translatef(xav, yav, 0)
gl.Rotatef(gl.Float(t.Theta), 0, 0, 1)
gl.Translatef(-xav, -yav, 0)
//Bind our texture to be drawn by id
gl.Color3f(1, 1, 1)
gl.Enable(gl.TEXTURE_2D)
gl.BindTexture(gl.TEXTURE_2D, t.TexId)
// Draw a rectangle with the texture stretched to the corners
gl.Begin(gl.QUADS)
// Stretch the texture to its 4 corners.
gl.TexCoord2d(0, 0)
gl.Vertex2f(t.X1, t.Y1)
gl.TexCoord2d(0, 1)
gl.Vertex2f(t.X1, t.Y2)
gl.TexCoord2d(1, 1)
gl.Vertex2f(t.X2, t.Y2)
gl.TexCoord2d(1, 0)
gl.Vertex2f(t.X2, t.Y1)
gl.End()
// Unbind the texture in case something else wants to draw
gl.Disable(gl.TEXTURE_2D)
// Reset the matrix
gl.LoadIdentity()
}
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)
}
// draw draws the triangle.
func draw() {
gl.ClearColor(0.3, 0.3, 0.3, 0.0)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.ShadeModel(gl.SMOOTH)
gl.LoadIdentity()
gl.Translatef(-15.0, -15.0, 0.0)
gl.Begin(gl.TRIANGLES)
gl.Color3f(1.0, 0.0, 0.0)
gl.Vertex2f(0.0, 0.0)
gl.Color3f(0.0, 1.0, 0.0)
gl.Vertex2f(30.0, 0.0)
gl.Color3f(0.0, 0.0, 1.0)
gl.Vertex2f(0.0, 30.0)
gl.End()
win.SwapBuffers()
}
func drawScene() {
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Translatef(0, 0, -3.0)
gl.Rotatef(rotx, 1, 0, 0)
gl.Rotatef(roty, 0, 1, 0)
rotx += 0.5
roty += 0.5
gl.BindTexture(gl.TEXTURE_2D, texture)
gl.Color4f(1, 1, 1, 1)
gl.Begin(gl.QUADS)
gl.Normal3f(0, 0, 1)
gl.TexCoord2f(0, 0)
gl.Vertex3f(-1, -1, 1)
gl.TexCoord2f(1, 0)
gl.Vertex3f(1, -1, 1)
gl.TexCoord2f(1, 1)
gl.Vertex3f(1, 1, 1)
gl.TexCoord2f(0, 1)
gl.Vertex3f(-1, 1, 1)
gl.Normal3f(0, 0, -1)
gl.TexCoord2f(1, 0)
gl.Vertex3f(-1, -1, -1)
gl.TexCoord2f(1, 1)
gl.Vertex3f(-1, 1, -1)
gl.TexCoord2f(0, 1)
gl.Vertex3f(1, 1, -1)
gl.TexCoord2f(0, 0)
gl.Vertex3f(1, -1, -1)
gl.Normal3f(0, 1, 0)
gl.TexCoord2f(0, 1)
gl.Vertex3f(-1, 1, -1)
gl.TexCoord2f(0, 0)
gl.Vertex3f(-1, 1, 1)
gl.TexCoord2f(1, 0)
gl.Vertex3f(1, 1, 1)
gl.TexCoord2f(1, 1)
gl.Vertex3f(1, 1, -1)
gl.Normal3f(0, -1, 0)
gl.TexCoord2f(1, 1)
gl.Vertex3f(-1, -1, -1)
gl.TexCoord2f(0, 1)
gl.Vertex3f(1, -1, -1)
gl.TexCoord2f(0, 0)
gl.Vertex3f(1, -1, 1)
gl.TexCoord2f(1, 0)
gl.Vertex3f(-1, -1, 1)
gl.Normal3f(1, 0, 0)
gl.TexCoord2f(1, 0)
gl.Vertex3f(1, -1, -1)
gl.TexCoord2f(1, 1)
gl.Vertex3f(1, 1, -1)
gl.TexCoord2f(0, 1)
gl.Vertex3f(1, 1, 1)
gl.TexCoord2f(0, 0)
gl.Vertex3f(1, -1, 1)
gl.Normal3f(-1, 0, 0)
gl.TexCoord2f(0, 0)
gl.Vertex3f(-1, -1, -1)
gl.TexCoord2f(1, 0)
gl.Vertex3f(-1, -1, 1)
gl.TexCoord2f(1, 1)
gl.Vertex3f(-1, 1, 1)
gl.TexCoord2f(0, 1)
gl.Vertex3f(-1, 1, -1)
gl.End()
}
// Need floor, right wall, and left wall matrices to draw the details
func (room *Room) render(floor, left, right mathgl.Mat4, zoom float32, base_alpha byte, drawables []Drawable, los_tex *LosTexture, floor_drawers []FloorDrawer) {
do_color := func(r, g, b, a byte) {
R, G, B, A := room.Color()
A = alphaMult(A, base_alpha)
gl.Color4ub(alphaMult(R, r), alphaMult(G, g), alphaMult(B, b), alphaMult(A, a))
}
gl.Enable(gl.TEXTURE_2D)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Enable(gl.STENCIL_TEST)
gl.ClearStencil(0)
gl.Clear(gl.STENCIL_BUFFER_BIT)
gl.EnableClientState(gl.VERTEX_ARRAY)
gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
defer gl.DisableClientState(gl.VERTEX_ARRAY)
defer gl.DisableClientState(gl.TEXTURE_COORD_ARRAY)
var vert roomVertex
planes := []plane{
{room.left_buffer, room.Wall, &left},
{room.right_buffer, room.Wall, &right},
{room.floor_buffer, room.Floor, &floor},
}
gl.PushMatrix()
defer gl.PopMatrix()
if los_tex != nil {
gl.LoadMatrixf(&floor[0])
gl.ClientActiveTexture(gl.TEXTURE1)
gl.ActiveTexture(gl.TEXTURE1)
gl.Enable(gl.TEXTURE_2D)
gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
los_tex.Bind()
gl.BindBuffer(gl.ARRAY_BUFFER, room.vbuffer)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
gl.ClientActiveTexture(gl.TEXTURE0)
gl.ActiveTexture(gl.TEXTURE0)
base.EnableShader("los")
base.SetUniformI("los", "tex2", 1)
}
var mul, run mathgl.Mat4
for _, plane := range planes {
gl.LoadMatrixf(&floor[0])
run.Assign(&floor)
// Render the doors and cut out the stencil buffer so we leave them empty
// if they're open
switch plane.mat {
case &left:
gl.StencilFunc(gl.ALWAYS, 1, 1)
gl.StencilOp(gl.REPLACE, gl.REPLACE, gl.REPLACE)
for _, door := range room.Doors {
if door.Facing != FarLeft {
continue
}
door.TextureData().Bind()
R, G, B, A := door.Color()
do_color(R, G, B, alphaMult(A, room.far_left.wall_alpha))
gl.ClientActiveTexture(gl.TEXTURE0)
door.TextureData().Bind()
if door.door_glids.floor_buffer != 0 {
gl.BindBuffer(gl.ARRAY_BUFFER, door.threshold_glids.vbuffer)
gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, door.door_glids.floor_buffer)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
gl.ClientActiveTexture(gl.TEXTURE1)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
gl.DrawElements(gl.TRIANGLES, door.door_glids.floor_count, gl.UNSIGNED_SHORT, nil)
}
}
gl.StencilFunc(gl.NOTEQUAL, 1, 1)
gl.StencilOp(gl.KEEP, gl.KEEP, gl.KEEP)
do_color(255, 255, 255, room.far_left.wall_alpha)
case &right:
gl.StencilFunc(gl.ALWAYS, 1, 1)
gl.StencilOp(gl.REPLACE, gl.REPLACE, gl.REPLACE)
for _, door := range room.Doors {
if door.Facing != FarRight {
continue
}
door.TextureData().Bind()
R, G, B, A := door.Color()
do_color(R, G, B, alphaMult(A, room.far_right.wall_alpha))
gl.ClientActiveTexture(gl.TEXTURE0)
door.TextureData().Bind()
if door.door_glids.floor_buffer != 0 {
gl.BindBuffer(gl.ARRAY_BUFFER, door.threshold_glids.vbuffer)
gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, door.door_glids.floor_buffer)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
gl.ClientActiveTexture(gl.TEXTURE1)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
gl.DrawElements(gl.TRIANGLES, door.door_glids.floor_count, gl.UNSIGNED_SHORT, nil)
}
}
gl.StencilFunc(gl.NOTEQUAL, 1, 1)
gl.StencilOp(gl.KEEP, gl.KEEP, gl.KEEP)
do_color(255, 255, 255, room.far_right.wall_alpha)
case &floor:
gl.StencilFunc(gl.ALWAYS, 2, 2)
gl.StencilOp(gl.REPLACE, gl.REPLACE, gl.REPLACE)
do_color(255, 255, 255, 255)
}
gl.ClientActiveTexture(gl.TEXTURE0)
gl.BindBuffer(gl.ARRAY_BUFFER, room.vbuffer)
gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
gl.ClientActiveTexture(gl.TEXTURE1)
if los_tex != nil {
los_tex.Bind()
}
gl.BindBuffer(gl.ARRAY_BUFFER, room.vbuffer)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
// Now draw the walls
gl.LoadMatrixf(&floor[0])
plane.texture.Data().Bind()
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, plane.index_buffer)
if (plane.mat == &left || plane.mat == &right) && strings.Contains(string(room.Wall.Path), "gradient.png") {
base.EnableShader("gorey")
base.SetUniformI("gorey", "tex", 0)
base.SetUniformI("gorey", "foo", Foo)
base.SetUniformF("gorey", "num_rows", Num_rows)
base.SetUniformF("gorey", "noise_rate", Noise_rate)
base.SetUniformF("gorey", "num_steps", Num_steps)
}
if plane.mat == &floor && strings.Contains(string(room.Floor.Path), "gradient.png") {
base.EnableShader("gorey")
base.SetUniformI("gorey", "tex", 0)
base.SetUniformI("gorey", "foo", Foo)
base.SetUniformF("gorey", "num_rows", Num_rows)
base.SetUniformF("gorey", "noise_rate", Noise_rate)
base.SetUniformF("gorey", "num_steps", Num_steps)
zexp := math.Log(float64(zoom))
frac := 1 - 1/zexp
frac = (frac - 0.6) * 5.0
switch {
case frac > 0.7:
base.SetUniformI("gorey", "range", 1)
case frac > 0.3:
base.SetUniformI("gorey", "range", 2)
default:
base.SetUniformI("gorey", "range", 3)
}
}
if plane.mat == &floor {
R, G, B, _ := room.Color()
gl.Color4ub(R, G, B, 255)
}
gl.DrawElements(gl.TRIANGLES, gl.Sizei(room.floor_count), gl.UNSIGNED_SHORT, nil)
if los_tex != nil {
base.EnableShader("los")
} else {
base.EnableShader("")
}
}
for _, wt := range room.WallTextures {
if room.wall_texture_gl_map == nil {
room.wall_texture_gl_map = make(map[*WallTexture]wallTextureGlIds)
room.wall_texture_state_map = make(map[*WallTexture]wallTextureState)
}
ids := room.wall_texture_gl_map[wt]
state := room.wall_texture_state_map[wt]
var new_state wallTextureState
new_state.flip = wt.Flip
new_state.rot = wt.Rot
new_state.x = wt.X
new_state.y = wt.Y
new_state.room.x = room.X
new_state.room.y = room.Y
new_state.room.dx = room.Size.Dx
new_state.room.dy = room.Size.Dy
if new_state != state {
wt.setupGlStuff(room.X, room.Y, room.Size.Dx, room.Size.Dy, &ids)
room.wall_texture_gl_map[wt] = ids
room.wall_texture_state_map[wt] = new_state
}
gl.LoadMatrixf(&floor[0])
if ids.vbuffer != 0 {
wt.Texture.Data().Bind()
R, G, B, A := wt.Color()
gl.ClientActiveTexture(gl.TEXTURE0)
gl.BindBuffer(gl.ARRAY_BUFFER, ids.vbuffer)
gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
gl.ClientActiveTexture(gl.TEXTURE1)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
gl.ClientActiveTexture(gl.TEXTURE0)
if ids.floor_buffer != 0 {
gl.StencilFunc(gl.ALWAYS, 2, 2)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, ids.floor_buffer)
gl.Color4ub(R, G, B, A)
gl.DrawElements(gl.TRIANGLES, ids.floor_count, gl.UNSIGNED_SHORT, nil)
}
if ids.left_buffer != 0 {
gl.StencilFunc(gl.ALWAYS, 1, 1)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, ids.left_buffer)
do_color(R, G, B, alphaMult(A, room.far_left.wall_alpha))
gl.DrawElements(gl.TRIANGLES, ids.left_count, gl.UNSIGNED_SHORT, nil)
}
if ids.right_buffer != 0 {
gl.StencilFunc(gl.ALWAYS, 1, 1)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, ids.right_buffer)
do_color(R, G, B, alphaMult(A, room.far_right.wall_alpha))
gl.DrawElements(gl.TRIANGLES, ids.right_count, gl.UNSIGNED_SHORT, nil)
}
}
}
base.EnableShader("marble")
base.SetUniformI("marble", "tex2", 1)
base.SetUniformF("marble", "room_x", float32(room.X))
base.SetUniformF("marble", "room_y", float32(room.Y))
for _, door := range room.Doors {
door.setupGlStuff(room)
if door.threshold_glids.vbuffer == 0 {
continue
}
if door.AlwaysOpen() {
continue
}
if door.highlight_threshold {
gl.Color4ub(255, 255, 255, 255)
} else {
gl.Color4ub(128, 128, 128, 255)
}
gl.BindBuffer(gl.ARRAY_BUFFER, door.threshold_glids.vbuffer)
gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
gl.ClientActiveTexture(gl.TEXTURE1)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
gl.ClientActiveTexture(gl.TEXTURE0)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, door.threshold_glids.floor_buffer)
gl.DrawElements(gl.TRIANGLES, door.threshold_glids.floor_count, gl.UNSIGNED_SHORT, nil)
}
base.EnableShader("")
if los_tex != nil {
base.EnableShader("")
gl.ActiveTexture(gl.TEXTURE1)
gl.Disable(gl.TEXTURE_2D)
gl.ActiveTexture(gl.TEXTURE0)
gl.ClientActiveTexture(gl.TEXTURE1)
gl.DisableClientState(gl.TEXTURE_COORD_ARRAY)
gl.ClientActiveTexture(gl.TEXTURE0)
}
run.Assign(&floor)
mul.Translation(float32(-room.X), float32(-room.Y), 0)
run.Multiply(&mul)
gl.LoadMatrixf(&run[0])
gl.StencilFunc(gl.EQUAL, 2, 3)
gl.StencilOp(gl.KEEP, gl.KEEP, gl.KEEP)
room_rect := image.Rect(room.X, room.Y, room.X+room.Size.Dx, room.Y+room.Size.Dy)
for _, fd := range floor_drawers {
x, y := fd.Pos()
dx, dy := fd.Dims()
if room_rect.Overlaps(image.Rect(x, y, x+dx, y+dy)) {
fd.RenderOnFloor()
}
}
do_color(255, 255, 255, 255)
gl.LoadIdentity()
gl.Disable(gl.STENCIL_TEST)
room.renderFurniture(floor, 255, drawables, los_tex)
gl.ClientActiveTexture(gl.TEXTURE1)
gl.Disable(gl.TEXTURE_2D)
gl.ClientActiveTexture(gl.TEXTURE0)
base.EnableShader("")
}