//---------------------------------------------------------
protected override void OnGUIUpdate(float parentAlpha)
{
if (IsDirty == false)
{
return;
}
if (m_UpdateDelegate != null)
{
m_UpdateDelegate();
}
if (m_Sprites != null)
{
Vector4 currColor = m_Color;
Transform tr = gameObject.transform;
Vector3 pos = tr.position;
Vector3 scale = tr.lossyScale;
Quaternion rot = tr.rotation; //faster way of detecting the rotation change (no need to decompose to euler angles)
currColor.w *= FadeAlpha * parentAlpha;
bool transformChanged = false;
bool rotChanged = false;
#if GUI_ENABLE_ANIMATIONS
transformChanged = pos != m_Pos || scale != m_Scale;
if (!transformChanged)
{
rotChanged = rot != m_Quat;
}
#endif
#if GUI_ENABLE_ANIMATIONS
m_Pos = pos;
m_Scale = scale;
m_Quat = rot;
#endif
Vector2 deltaPos;
Vector2 dPos;
Vector2 rotDelta;
if (rotChanged)
{
m_RotZ = m_Quat.eulerAngles.z; //decompose only when really necessary
}
float rot_z = m_RotZ;
float angle = -rot_z * Mathf.Deg2Rad;
deltaPos.x = pos.x - m_OrigPos.x;
deltaPos.y = pos.y - m_OrigPos.y;
for (int i = 0; i < m_Sprites.Length; ++i)
{
S_Sprite s = m_Sprites[i];
if (s.m_IsVisible)
{
float width = s.m_Width; // * scale.x;
float height = s.m_Height; // * scale.y;
if (m_TextScaleFix_HACK == false)
{
dPos.x = s.m_Pos.x - m_OrigPos.x;
dPos.y = s.m_Pos.y - m_OrigPos.y;
}
else
{
dPos.x = (s.m_Pos.x - m_OrigPos.x) * scale.x;
dPos.y = (s.m_Pos.y - m_OrigPos.y) * scale.y;
}
float cos = Mathf.Cos(angle);
float sin = Mathf.Sin(angle);
rotDelta.x = dPos.x * cos + dPos.y * sin;
rotDelta.y = -dPos.x * sin + dPos.y * cos;
float rx = m_OrigPos.x + deltaPos.x + rotDelta.x;
float ry = m_OrigPos.y + deltaPos.y + rotDelta.y;
UpdateSprite(s.m_Sprite, new Rect(rx, ry, width, height), rot_z, scale, -(float)m_Layout.m_LayoutLayer, m_Grid9);
s.m_Sprite.color = currColor;
}
}
}
}
public void PrepareSprites(int count)
{
if (m_GuiRenderer == null)
{
return;
}
if (m_Sprites != null && m_Sprites.Length == count)
{
return;
}
// prepare temp list
S_Sprite[] sprites = new S_Sprite[count];
int spriteIdx = 0;
// remove all unwanted sprites
if (m_Sprites != null)
{
for (int idx = 0; idx < m_Sprites.Length; ++idx)
{
if (m_Sprites[idx].m_Sprite == null)
{
continue;
}
if (spriteIdx < count)
{
sprites[spriteIdx++] = m_Sprites[idx];
}
else
{
m_GuiRenderer.RemoveSprite(m_Sprites[idx].m_Sprite);
}
}
}
// add new sprites if needed
while (spriteIdx < count)
{
MFGuiSprite sprite = AddSprite(
new Rect(0, 0, 0, 0),
0,
ComputedWidgetLayer * -(1.0f / GUIBase_Layout.MAX_LAYERS),
0,
0,
0,
0,
null);
sprites[spriteIdx++].m_Sprite = sprite;
}
// store new list
m_Sprites = sprites;
// update visibility
for (int idx = 0; idx < m_Sprites.Length; ++idx)
{
ShowSprite(idx, Visible);
}
}
