func (vb *VertexBuffer) Render(position Point3) {
gl.PushMatrix()
gl.Translated(
gl.Double(position.X),
gl.Double(position.Y),
gl.Double(position.Z))
gl.VertexPointer(
gl.Int(3),
gl.DOUBLE,
0,
gl.Pointer(&vb.VertexData[0]))
gl.ColorPointer(
gl.Int(4),
gl.DOUBLE,
0,
gl.Pointer(&vb.ColorData[0]))
gl.TexCoordPointer(
gl.Int(2),
gl.DOUBLE,
0,
gl.Pointer(&vb.TexCoordData[0]))
for i := range vb.RenderSteps {
rs := &vb.RenderSteps[i]
gl.DrawElements(
rs.Mode,
gl.Sizei(len(rs.Indices)),
gl.UNSIGNED_INT,
gl.Pointer(&rs.Indices[0]))
}
gl.PopMatrix()
}
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 (v *ViewBase) paint() {
if v.hidden {
return
}
gl.PushMatrix()
defer gl.PopMatrix()
d := MapToParent(ZP, v)
gl.Translated(gl.Double(d.X), gl.Double(d.Y), 0)
v.Self.Paint()
for _, child := range v.children {
child.base().paint()
}
}
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 (gw *GameWindow) Draw(region gui.Region) {
gw.region = region
latest_region = region
gl.PushMatrix()
defer gl.PopMatrix()
gl.Translated(gl.Double(gw.region.X), gl.Double(gw.region.Y), 0)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gw.game.manaSource.Draw(gw, float64(gw.game.Dx), float64(gw.game.Dy))
gl.Begin(gl.LINES)
gl.Color4d(1, 1, 1, 1)
for _, poly := range gw.game.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.Begin(gl.TRIANGLE_FAN)
gl.Color4d(1, 0, 0, 1)
for _, poly := range gw.game.Room.Lava {
for _, v := range poly {
gl.Vertex2d(gl.Double(v.X), gl.Double(v.Y))
}
}
gl.End()
gl.Color4d(1, 1, 1, 1)
for _, ent := range gw.game.Ents {
ent.Draw(gw.game)
}
gl.Disable(gl.TEXTURE_2D)
for _, player := range local.players {
if player.active_ability != nil {
player.active_ability.Draw(player.id, gw.game)
}
}
// base.GetDictionary("luxisr").RenderString("monkeys!!!", 10, 10, 0, float64(gw.game.Game_thinks), gin.Left)
}
func (t *Text) Paint() {
SetColor(t.backgroundColor)
FillRect(InnerRect(t).Inset(t.frameSize))
if t.frameSize > 0 {
SetColor(t.frameColor)
SetLineWidth(t.frameSize)
DrawRect(InnerRect(t))
}
if t.cursor {
SetColor(t.textColor)
SetLineWidth(2)
x := t.frameSize + t.font.Advance(t.text)
DrawLine(Pt(x, t.frameSize), Pt(x, Height(t)-2*t.frameSize))
}
SetColor(t.textColor)
gl.Translated(gl.Double(t.frameSize), gl.Double(t.frameSize-t.font.Descender()), 0)
t.font.Render(t.text)
}
func (d *Dictionary) RenderString(s string, x, y, z, height float64, just Justification) {
if len(s) == 0 {
return
}
strbuf, ok := d.strs[s]
if !ok {
defer d.RenderString(s, x, y, z, height, just)
} else {
render.EnableShader("glop.font")
diff := 20/math.Pow(height, 1.0) + 5*math.Pow(d.data.Scale, 1.0)/math.Pow(height, 1.0)
if diff > 0.4 {
// TODO: Need to come up with decent values here
diff = 0.4
}
render.SetUniformF("glop.font", "dist_min", float32(0.5-diff))
render.SetUniformF("glop.font", "dist_max", float32(0.5+diff))
defer render.EnableShader("")
}
size := unsafe.Sizeof(dictVert{})
scale := height / float64(d.data.Maxy-d.data.Miny)
width := float32(d.figureWidth(s) * scale)
x_pos := float32(x)
switch just {
case Center:
x_pos -= width / 2
case Right:
x_pos -= width
}
if ok {
gl.PushMatrix()
defer gl.PopMatrix()
gl.Translated(gl.Double(x_pos), gl.Double(y), gl.Double(z))
gl.Scaled(gl.Double(scale), gl.Double(scale), 1)
gl.PushAttrib(gl.COLOR_BUFFER_BIT)
defer gl.PopAttrib()
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Enable(gl.TEXTURE_2D)
gl.BindTexture(gl.TEXTURE_2D, gl.Uint(d.texture))
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(strbuf.vbuffer))
gl.EnableClientState(gl.VERTEX_ARRAY)
gl.VertexPointer(2, gl.FLOAT, gl.Sizei(size), nil)
gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(size), gl.Pointer(unsafe.Offsetof(strbuf.vs[0].u)))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(strbuf.ibuffer))
gl.DrawElements(gl.TRIANGLES, gl.Sizei(len(strbuf.is)), gl.UNSIGNED_SHORT, nil)
gl.DisableClientState(gl.VERTEX_ARRAY)
gl.DisableClientState(gl.TEXTURE_COORD_ARRAY)
gl.Disable(gl.TEXTURE_2D)
return
}
x_pos = 0
var prev rune
for _, r := range s {
if _, ok := d.data.Kerning[prev]; ok {
x_pos += float32(d.data.Kerning[prev][r])
}
prev = r
info := d.getInfo(r)
xleft := x_pos + float32(info.Full_bounds.Min.X)
xright := x_pos + float32(info.Full_bounds.Max.X)
ytop := float32(info.Full_bounds.Max.Y) + float32(-d.data.Miny)
ybot := float32(info.Full_bounds.Min.Y) + float32(-d.data.Miny)
start := uint16(len(strbuf.vs))
strbuf.is = append(strbuf.is, start+0)
strbuf.is = append(strbuf.is, start+1)
strbuf.is = append(strbuf.is, start+2)
strbuf.is = append(strbuf.is, start+0)
strbuf.is = append(strbuf.is, start+2)
strbuf.is = append(strbuf.is, start+3)
strbuf.vs = append(strbuf.vs, dictVert{
x: xleft,
y: ytop,
u: float32(info.Pos.Min.X) / float32(d.data.Dx),
v: float32(info.Pos.Max.Y) / float32(d.data.Dy),
})
strbuf.vs = append(strbuf.vs, dictVert{
x: xleft,
y: ybot,
u: float32(info.Pos.Min.X) / float32(d.data.Dx),
v: float32(info.Pos.Min.Y) / float32(d.data.Dy),
})
strbuf.vs = append(strbuf.vs, dictVert{
x: xright,
y: ybot,
u: float32(info.Pos.Max.X) / float32(d.data.Dx),
v: float32(info.Pos.Min.Y) / float32(d.data.Dy),
})
strbuf.vs = append(strbuf.vs, dictVert{
x: xright,
y: ytop,
u: float32(info.Pos.Max.X) / float32(d.data.Dx),
v: float32(info.Pos.Max.Y) / float32(d.data.Dy),
})
x_pos += float32(info.Advance) // - float32((info.Full_bounds.Dx() - info.Bounds.Dx()))
}
gl.GenBuffers(1, (*gl.Uint)(&strbuf.vbuffer))
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(strbuf.vbuffer))
gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(int(size)*len(strbuf.vs)), gl.Pointer(&strbuf.vs[0].x), gl.STATIC_DRAW)
gl.GenBuffers(1, (*gl.Uint)(&strbuf.ibuffer))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(strbuf.ibuffer))
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, gl.Sizeiptr(int(unsafe.Sizeof(strbuf.is[0]))*len(strbuf.is)), gl.Pointer(&strbuf.is[0]), gl.STATIC_DRAW)
d.strs[s] = strbuf
}