/**
* Render the given text element in world space.
*
* @param element The text element.
* @param style The style to use when rendering.
*/
protected void RenderWorldTextElement(WorldSpaceTextElement element, GUIStyle style)
{
// project the world point onto the screen
Vector2 ptScreen = Camera.main.WorldToScreenPoint(element.pos);
// off the screen
if (ptScreen.x < 0 || ptScreen.y < 0 || ptScreen.x >= Screen.width || ptScreen.y >= Screen.height)
{
return;
}
// render a single line
if (element.text.Length == 1)
{
Rect bounds = new Rect(ptScreen.x - 1000, Screen.height - ptScreen.y - 1000, 2000, 2000);
RenderText(element.text[0], element, bounds, style);
}
// render each line
else
{
for (int i = 0; i < element.text.Length; ++i)
{
Rect bounds = new Rect(ptScreen.x - 1000, Screen.height - ptScreen.y - 1000 + style.fontSize * i, 2000, 2000);
RenderText(element.text[i], element, bounds, style);
}
}
}
/**
* Adds text lines to the world.
*
* @param text The lines of text to add.
* @param time The number of seconds to keep it in the world. If negative then it will remain until cleared.
* @param color The color of the text.
* @param fontSize The size of the font.
*/
public void AddWorldText(string[] text, Vector3 pos, float time, Color color, int fontSize)
{
WorldSpaceTextElement element = new WorldSpaceTextElement();
element.color = color;
element.text = text;
element.time = time;
element.pos = pos;
element.fontSize = fontSize;
m_worldTextElements.Add(element);
}
/**
* Renders the all the world text elements.
*/
protected void RenderWorldText()
{
if (m_worldTextElements.Count == 0)
{
return;
}
GUIStyle style = new GUIStyle();
style.fontStyle = FontStyle.Bold;
style.alignment = TextAnchor.MiddleCenter;
// render each element
for (int i = 0; i < m_worldTextElements.Count; ++i)
{
WorldSpaceTextElement element = m_worldTextElements[i];
style.fontSize = element.fontSize;
RenderWorldTextElement(element, style);
}
}