koobas.hobune.stream
Change texture alpha value on runtime
Hey there!
So, In the GUI I'm currently working on, I need to know if there's a way to change the texture alpha value during runtime... Actually right now I've this:
function OnGUI() {
//some unrelated stuff here
//Hull Background
GUI.DrawTexture(Rect(Health.hull_area.x, Health.hull_area.y, Health.hull_area.width, Health.hull_area.height), Health.hull_bg);
//Hull Foreground
GUI.DrawTexture(Rect(Health.hull_fg_area.x, Health.hull_fg_area.y, Health.hull_fg_area.width, Health.hull_fg_area.height), Health.hull_fg);
//more unrelated stuff
}
Where inside the Health class I've the hull_bg and the hull_fg Textures. Is there anyway to make it transparent as the player takes damage, in order to gradually leave the background visible?
Thanks in advance.
JPB18
Best Answer
private Color guiColor;
void Start(){
guiColor = Color.white;
}
void Update(){
guiColor.a = 0.5f; //a can be from 0 to 1 only, so set it how do you want it to drop down, if you get hit. For now its constant 0.5
//like if lets say your health is 100, you could do
float alphaLevel = Health/1000;
//and then
guiColor.a = alphaLevel;
}
function OnGUI() {
GUI.color = guiColor; //sets all next gui color to transparetn 0,5
GUI.DrawTexture(Rect(Health.hull_area.x, Health.hull_area.y, Health.hull_area.width, Health.hull_area.height), Health.hull_bg);
GUI.color = Color.white; //sets it back
}
