func (e *Editor) MoveSelectedNodeModel(x, y float32, axisLock mgl32.Vec3) {
selectedModel, _ := e.overviewMenu.getSelectedNode(e.currentMap.Root)
if selectedModel != nil {
selectedModel.Translation = selectedModel.Translation.Add(axisLock.Mul(x * mouseSpeed))
}
updateMap(e.currentMap.Root)
}
// Since go has multiple return values, I just went ahead and made it return the view and perspective matrices (in that order) rather than messing with getter methods
func (c *Camera) ComputeViewPerspective() (mgl32.Mat4, mgl32.Mat4) {
if mgl64.FloatEqual(-1.0, c.time) {
c.time = glfw.GetTime()
}
currTime := glfw.GetTime()
deltaT := currTime - c.time
xPos, yPos := c.window.GetCursorPosition()
c.window.SetCursorPosition(width/2.0, height/2.0)
c.hAngle += mouseSpeed * ((width / 2.0) - float64(xPos))
c.vAngle += mouseSpeed * ((height / 2.0) - float64(yPos))
dir := mgl32.Vec3{
float32(math.Cos(c.vAngle) * math.Sin(c.hAngle)),
float32(math.Sin(c.vAngle)),
float32(math.Cos(c.vAngle) * math.Cos(c.hAngle))}
right := mgl32.Vec3{
float32(math.Sin(c.hAngle - math.Pi/2.0)),
0.0,
float32(math.Cos(c.hAngle - math.Pi/2.0))}
up := right.Cross(dir)
if c.window.GetKey(glfw.KeyUp) == glfw.Press || c.window.GetKey('W') == glfw.Press {
c.pos = c.pos.Add(dir.Mul(float32(deltaT * speed)))
}
if c.window.GetKey(glfw.KeyDown) == glfw.Press || c.window.GetKey('S') == glfw.Press {
c.pos = c.pos.Sub(dir.Mul(float32(deltaT * speed)))
}
if c.window.GetKey(glfw.KeyRight) == glfw.Press || c.window.GetKey('D') == glfw.Press {
c.pos = c.pos.Add(right.Mul(float32(deltaT * speed)))
}
if c.window.GetKey(glfw.KeyLeft) == glfw.Press || c.window.GetKey('A') == glfw.Press {
c.pos = c.pos.Sub(right.Mul(float32(deltaT * speed)))
}
// Adding to the original tutorial, Space goes up
if c.window.GetKey(glfw.KeySpace) == glfw.Press {
c.pos = c.pos.Add(up.Mul(float32(deltaT * speed)))
}
// Adding to the original tutorial, left control goes down
if c.window.GetKey(glfw.KeyLeftControl) == glfw.Press {
c.pos = c.pos.Sub(up.Mul(float32(deltaT * speed)))
}
fov := initialFOV //- 5.0*float64(glfw.MouseWheel())
proj := mgl32.Perspective(float32(fov), 4.0/3.0, 0.1, 100.0)
view := mgl32.LookAtV(c.pos, c.pos.Add(dir), up)
c.time = currTime
return view, proj
}
func Vec3Lerp(start, end mgl32.Vec3, amount float32) mgl32.Vec3 {
return start.Mul(1.0 - amount).Add(end.Mul(amount))
}