/// <summary>
/// Draw the UI controls for animation playback, e.g.
/// the drop-down menu for selecting the active
/// animation clip. These UI controls are only shown
/// when the currently glTF model has one or more
/// animations.
/// </summary>
public void AnimationControlsOnGui()
{
Animation anim = ModelManager.Instance.Animation;
var clipKeys = ModelManager.Instance.AnimationClipKeys;
var clipNames = ModelManager.Instance.AnimationClipNames;
var animationControlsAreaHeight = _styles.DropDownButton.CalcSize(
new GUIContent("Dummy Text")).y;
var dropdownWidth = ScaleInt(300);
GUILayout.BeginHorizontal(GUILayout.Height(animationControlsAreaHeight));
// Get a reference to the currently selected animation clip.
// We use a value of null to indicate that the special
// "Static Pose" clip is currently selected.
AnimationState selectedClip = null;
if (_dropDownState.selectedIndex != STATIC_POSE_INDEX)
{
selectedClip = anim[clipKeys[_dropDownState.selectedIndex]];
}
// play/pause button
GUILayout.BeginVertical();
GUILayout.FlexibleSpace();
var playButtonRect = GUILayoutUtility.GetRect(
new GUIContent(""), _styles.PlayButton,
GUILayout.Width(animationControlsAreaHeight),
GUILayout.Height(animationControlsAreaHeight));
if (GUI.Button(playButtonRect, "", _styles.PlayButton) && selectedClip != null)
{
selectedClip.speed = selectedClip.speed == 0f ? 1f : 0f;
}
var origColor = GUI.color;
GUI.color = selectedClip != null ? Color.black : Color.gray;
float playIconMargin = ScaleInt(10);
var playIconRect = new Rect(
playButtonRect.x + playIconMargin,
playButtonRect.y + playIconMargin,
playButtonRect.width - 2 * playIconMargin,
playButtonRect.width - 2 * playIconMargin);
GUI.DrawTexture(playIconRect,
selectedClip != null && selectedClip.speed > 0f ? _pauseIcon : _playIcon,
ScaleMode.ScaleToFit);
GUI.color = origColor;
GUILayout.FlexibleSpace();
GUILayout.EndVertical();
// timeline slider
GUILayout.FlexibleSpace();
GUILayout.BeginVertical();
GUILayout.FlexibleSpace();
var time = 0f;
var length = 0f;
if (selectedClip != null)
{
length = selectedClip.length;
time = selectedClip.time % length;
}
// Workaround: GUI.LayoutSlider does not expand
// its width to fill the available space, so we must manually
// calculate the available width here. I'm pretty sure this is a
// bug, since other GUI elements (e.g. GUILayout.Label)
// are capable of automatically expanding their width.
var sliderWidth = Screen.width
- _screenMargin.left
- animationControlsAreaHeight
- _styles.PlayButton.margin.right
- _styles.DropDownButton.margin.left
- dropdownWidth
- _screenMargin.right;
var prevTime = time;
time = GUILayout.HorizontalSlider(time, 0f, length,
GUILayout.Width(sliderWidth));
// if the user clicked on the slider, set the time to
// the clicked location and pause playback
if (selectedClip != null && time != prevTime)
{
selectedClip.time = time;
selectedClip.speed = 0f;
}
GUILayout.FlexibleSpace();
GUILayout.EndVertical();
GUILayout.FlexibleSpace();
// drop-down menu for selecting animation clip
GUILayout.BeginVertical();
GUILayout.FlexibleSpace();
var dropdownRect = GUILayoutUtility.GetRect(
new GUIContent(""), _styles.DropDownButton,
GUILayout.Width(dropdownWidth),
GUILayout.Height(animationControlsAreaHeight));
var prevSelectedIndex = _dropDownState.selectedIndex;
_dropDownState = GuiEx.DropDownMenu(
dropdownRect,
clipNames,
_dropDownState,
_dropDownIcon,
_styles.DropDownButton,
_styles.DropDownListBackground,
_styles.DropDownListForeground,
_styles.DropDownListItem);
// if a new animation clip has been selected, stop the
// current clip and start playing the new one
if (_dropDownState.selectedIndex != prevSelectedIndex)
{
anim.Stop();
if (selectedClip != null)
{
selectedClip.speed = 1f;
selectedClip.time = 0f;
}
// Restore the static pose before we start playing the
// new animation clip. This is necessary because
// an animation clip will not necessarily reset
// all position/rotation/scale values for
// all game objects in the model. Any unspecified
// transform values are assumed to come from the
// default static pose.
anim.Play(clipKeys[STATIC_POSE_INDEX]);
anim.Sample();
// start playing the new clip
var newClipKey = clipKeys[_dropDownState.selectedIndex];
var newClip = anim[newClipKey];
newClip.time = 0f;
newClip.speed = 1f;
anim.Play(newClipKey);
}
GUILayout.FlexibleSpace();
GUILayout.EndVertical();
GUILayout.EndHorizontal();
}
/// <summary>
/// Draw the UI controls for animation playback, e.g.
/// the drop-down menu for selecting the active
/// animation clip. These UI controls are only shown
/// when the currently glTF model has one or more
/// animations.
/// </summary>
public void AnimationControlsOnGui()
{
Animation anim = ModelManager.Instance.Animation;
var clipKeys = ModelManager.Instance.AnimationClipKeys;
var clipNames = ModelManager.Instance.AnimationClipNames;
const float animationControlsAreaHeight = 75;
// Get a reference to the currently selected animation clip.
// We use a value of null to indicate that the special
// "Static Pose" clip is currently selected.
AnimationState selectedClip = null;
if (_dropDownState.selectedIndex != STATIC_POSE_INDEX)
{
selectedClip = anim[clipKeys[_dropDownState.selectedIndex]];
}
// play/pause button
const float playButtonSize = 50;
var playButtonRect = new Rect(
_screenEdgePadding,
Screen.height - animationControlsAreaHeight
+ (animationControlsAreaHeight - playButtonSize) / 2,
playButtonSize,
playButtonSize);
if (GUI.Button(playButtonRect, "", _styles.PlayButton) && selectedClip != null)
{
selectedClip.speed = selectedClip.speed == 0f ? 1f : 0f;
}
var origColor = GUI.color;
GUI.color = selectedClip != null ? Color.black : Color.gray;
const float playIconMargin = 10;
var playIconRect = new Rect(
playButtonRect.x + playIconMargin,
playButtonRect.y + playIconMargin,
playButtonRect.width - 2 * playIconMargin,
playButtonRect.width - 2 * playIconMargin);
GUI.DrawTexture(playIconRect,
selectedClip != null && selectedClip.speed > 0f ? _pauseIcon : _playIcon,
ScaleMode.ScaleToFit);
GUI.color = origColor;
// drop-down menu for selecting animation clip
const float buttonWidth = 300;
var buttonHeight = _styles.DropDownButton.CalcSize(
new GUIContent("Dummy Text")).y;
var buttonRect = new Rect(
Screen.width - _screenEdgePadding - buttonWidth,
Screen.height - animationControlsAreaHeight
+ (animationControlsAreaHeight - buttonHeight) / 2,
buttonWidth, buttonHeight);
var prevSelectedIndex = _dropDownState.selectedIndex;
_dropDownState = GuiEx.DropDownMenu(
buttonRect,
clipNames,
_dropDownState,
_dropDownIcon,
_styles.DropDownButton,
_styles.DropDownListBackground,
_styles.DropDownListForeground,
_styles.DropDownListItem);
// if a new animation clip has been selected, stop the
// current clip and start playing the new one
if (_dropDownState.selectedIndex != prevSelectedIndex)
{
anim.Stop();
if (selectedClip != null)
{
selectedClip.speed = 1f;
selectedClip.time = 0f;
}
// Restore the static pose before we start playing the
// new animation clip. This is necessary because
// an animation clip will not necessarily reset
// all position/rotation/scale values for
// all game objects in the model. Any unspecified
// transform values are assumed to come from the
// default static pose.
anim.Play(clipKeys[STATIC_POSE_INDEX]);
anim.Sample();
// start playing the new clip
var newClipKey = clipKeys[_dropDownState.selectedIndex];
var newClip = anim[newClipKey];
newClip.time = 0f;
newClip.speed = 1f;
anim.Play(newClipKey);
}
// timeline slider
const float sliderMargin = 20;
const float sliderHeight = 10;
var sliderX1 = playButtonRect.x + playButtonRect.width + sliderMargin;
var sliderX2 = buttonRect.x - sliderMargin;
var sliderRect = new Rect(
sliderX1,
Screen.height - animationControlsAreaHeight
+ (animationControlsAreaHeight - sliderHeight) / 2,
sliderX2 - sliderX1,
sliderHeight);
var time = 0f;
var length = 0f;
if (selectedClip != null)
{
length = selectedClip.length;
time = selectedClip.time % length;
}
var prevTime = time;
time = GUI.HorizontalSlider(sliderRect, time, 0f, length);
// if the user clicked on the slider, set the time to
// the clicked location and pause playback
if (selectedClip != null && time != prevTime)
{
selectedClip.time = time;
selectedClip.speed = 0f;
}
}