func (s *Sprite) Draw(x, y, angle, scale float32, blend bool) {
gl.Enable(gl.TEXTURE_2D)
gl.Disable(gl.COLOR_MATERIAL)
if blend {
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Enable(gl.BLEND)
} else {
gl.Disable(gl.BLEND)
gl.BlendFunc(gl.ONE, gl.ZERO)
}
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Translatef(x, y, 0)
gl.Rotatef(angle*360/(2*math.Pi), 0, 0, 1)
gl.Scalef(scale, scale, 1)
s.tex.Bind(gl.TEXTURE_2D)
gl.Begin(gl.QUADS)
gl.Color3f(1, 1, 1)
gl.TexCoord2d(0, 0)
gl.Vertex3f(-0.5*s.width, -0.5*s.height, 0)
gl.TexCoord2d(1, 0)
gl.Vertex3f(0.5*s.width, -0.5*s.height, 0)
gl.TexCoord2d(1, 1)
gl.Vertex3f(0.5*s.width, 0.5*s.height, 0)
gl.TexCoord2d(0, 1)
gl.Vertex3f(-0.5*s.width, 0.5*s.height, 0)
gl.End()
gl.Disable(gl.TEXTURE_2D)
gl.Disable(gl.BLEND)
}
func (self *Font) Print(str string) {
for _, ch := range str {
self.textures[ch].Bind(gl.TEXTURE_2D)
h := float32(self.height) * PIXEL_SCALE
w := float32(self.widths[ch]) * PIXEL_SCALE
gl.Color4ub(255, 255, 255, 255)
gl.Begin(gl.QUADS)
gl.TexCoord2d(0, 0)
gl.Vertex2f(0, 0) // Bottom Left Of The Texture and Quad
gl.TexCoord2d(1, 0)
gl.Vertex2f(w, 0) // Bottom Right Of The Texture and Quad
gl.TexCoord2d(1, 1)
gl.Vertex2f(w, h) // Top Right Of The Texture and Quad
gl.TexCoord2d(0, 1)
gl.Vertex2f(0, h) // Top Left Of The Texture and Quad
gl.End()
gl.Translatef(w, 0, 0)
self.textures[ch].Unbind(gl.TEXTURE_2D)
}
}
func (this *App) Run() {
fmt.Println("running")
var done bool
cam := camera.New()
cam.Pos = V3(-0, 0, 3)
cam.Dir = V3(0, -0, -1)
pos := []float32{5.0, 5.0, 10.0, 0.0}
gl.Lightfv(gl.LIGHT0, gl.POSITION, pos)
gl.Enable(gl.LIGHT0)
elapsed := 0.0
rotateSpeed := DegToRad(100.0)
moveSpeed := 3.0
texture.SetDefaultTexturePaths("res/textures/", ".png")
texture.Load("ground")
texture.Load("ground2")
defer texture.ClearAllData()
tex1 := texture.Get("ground2")
//tex2 := texture.Get("ground2")
model.SetDefaultModelPaths("res/models/", ".obj")
model.Load("teapot")
model.Load("cuboid")
model.Load("sphere")
model.Load("bunny")
defer model.ClearAllData()
mod1 := model.Get("bunny") //*/
//*
prog1 := program.New("test", "test")
defer prog1.Destroy()
prog := prog1
println(prog.InfoLog())
var mView, mProjection, mModel *mat4.Mat4
mModel = mat4.New() //*/
done = false
for !done {
time1 := time.Now()
this.win.ClearBuffers()
this.win.ResetModelViewMatrix()
//input
if this.il.KeyDown(glfw.KeyLeft) {
cam.RotateY(-rotateSpeed * elapsed)
}
if this.il.KeyDown(glfw.KeyRight) {
cam.RotateY(rotateSpeed * elapsed)
}
if this.il.KeyDown(glfw.KeyUp) {
cam.RotateX(-rotateSpeed * elapsed)
}
if this.il.KeyDown(glfw.KeyDown) {
cam.RotateX(rotateSpeed * elapsed)
}
if this.il.KeyDown(KeyX) {
cam.MoveZ(-moveSpeed * elapsed)
}
if this.il.KeyDown(KeyC) {
cam.MoveZ(moveSpeed * elapsed)
}
if this.il.KeyPressed(KeyR) {
prog.Reload()
println(prog.InfoLog())
}
this.win.ApplyCamera(cam)
//*
mView = cam.Matrix()
mProjection = this.win.ProjectionMatrix()
mModel.SetIdentity()
prog.SetModelMatrix(mModel)
prog.SetViewMatrix(mView)
prog.SetProjectionMatrix(mProjection)
prog.UniformColor("uColor", Col(1, .1, 0.5, 1))
prog.UniformMat4("uMat", mModel)
prog.Use() //*/
material.White.Use()
//tex1.Unbind()
mod1.Render()
tex1.Bind2(Col(1, 1, 1, 1))
gl.Begin(gl.TRIANGLES)
gl.Normal3d(0, 0, 1)
gl.TexCoord2d(11.0, 10.0)
gl.Vertex3d(1.0, 0.0, -15.0)
gl.TexCoord2d(0.5, 11.0)
gl.Vertex3d(0.0, 1.0, -15.0)
gl.TexCoord2d(0.0, 0.0)
gl.Vertex3d(-1.0, 0.0, -15.0)
gl.TexCoord2d(1.0, 0.0)
gl.Vertex3d(1.0, 0.0, -5.0)
gl.TexCoord2d(0.5, 1.0)
gl.Vertex3d(0.0, 1.0, -5.0)
gl.TexCoord2d(0.0, 0.0)
gl.Vertex3d(-1.0, 0.0, -5.0)
gl.End() //*/
this.win.Flip()
done = this.il.MBQuit() || this.il.KeyPressed(glfw.KeyEsc)
elapsed = time.Since(time1).Seconds()
printFPS()
}
}
func GlTex2(v *vec2.Vec2) { gl.TexCoord2d(v.X, v.Y) }