[Mrs cheng]

Keyvalues

Use String <string>
The text/string that appears on the progress bar while the player is holding down use.

Use Sub-String <string>
A sub-string that appears below the Use String.

Why are they invalid to use the above two key names? (use_string and use_sub_string)
The ProgressBarText/SubText does not appear when I press the button.

Could someone help me?
Thanks.

[Mr. Zero]

You have to apply a model. You can afterwards hide the model if you don't need it with the effects bitflag for NODRAW.
This also fixes the glow netprops so glows can be applied to the button if needed.

Beaware that applying model to the button can mess up the use range, depending on how large your use model is.
Furthermore make sure your UseStrings aren't empty, otherwise the game will use the last UseString the client saw (such as, healing teammate when the player is using your button).

PHP Code:

// func_buttons, even without model, still collide and can provide height
// advantage. By offseting, no height advantage is given.
#define FUNC_BUTTON_Z_OFFSET -2.0

...

    // Validate use strings.
    if (strlen(UseString) > 0)
    {
        Format(TempString, sizeof(TempString), "%s", UseString);
        StripQuotes(TempString);
        TrimString(TempString);
        if (strlen(TempString) > 0)
        {
            DispatchKeyValue(Entity, "use_string", TempString);
        }
        else
        {
            // Empty string to overwrite last useaction string
            DispatchKeyValue(Entity, "use_string", " ");
        }
    }
    else
    {
        // Empty string to overwrite last useaction string
        DispatchKeyValue(Entity, "use_string", " ");
    }

    if (strlen(UseSubString) > 0)
    {
        Format(TempString, sizeof(TempString), "%s", UseSubString);
        StripQuotes(TempString);
        TrimString(TempString);
        if (strlen(TempString) > 0)
        {
            DispatchKeyValue(Entity, "use_sub_string", TempString);
        }
        else
        {
            // Empty string to overwrite last useaction string
            DispatchKeyValue(Entity, "use_sub_string", " ");
        }
    }
    else
    {
        // Empty string to overwrite last useaction string
        DispatchKeyValue(Entity, "use_sub_string", " ");
    }

    // Apply model and no draw model flag.
    // This fixes missing glow and use strings.
    SetEntityModel(Entity, BUTTON_MODEL);
    int Effects = GetEntProp(Entity, Prop_Send, "m_fEffects");
    Effects |= 32;
    SetEntProp(Entity, Prop_Send, "m_fEffects", Effects);

    // Apply bounds for correct use range.
    float MinBounds[3] = {
        BUTTON_MODEL_MINBOUNDS_X,
        BUTTON_MODEL_MINBOUNDS_Y,
        BUTTON_MODEL_MINBOUNDS_Z};
    MinBounds[2] += FUNC_BUTTON_Z_OFFSET;
    float MaxBounds[3] = {
        BUTTON_MODEL_MAXBOUNDS_X,
        BUTTON_MODEL_MAXBOUNDS_Y,
        BUTTON_MODEL_MAXBOUNDS_Z};
    MaxBounds[2] -= FUNC_BUTTON_Z_OFFSET;

    SetEntPropVector(Entity, Prop_Send, "m_vecMins", MinBounds);
    SetEntPropVector(Entity, Prop_Send, "m_vecMaxs", MaxBounds); 


[Mrs cheng]

Originally Posted by Mr. Zero You have to apply a model. You can afterwards hide the model if you don't need it with the effects bitflag for NODRAW. This also fixes the glow netprops so glows can be applied to the button if needed. Beaware that applying model to the button can mess up the use range, depending on how large your use model is. Furthermore make sure your UseStrings aren't empty, otherwise the game will use the last UseString the client saw (such as, healing teammate when the player is using your button). PHP Code: // func_buttons, even without model, still collide and can provide height // advantage. By offseting, no height advantage is given. #define FUNC_BUTTON_Z_OFFSET -2.0 ...     // Validate use strings.     if (strlen(UseString) > 0)     {         Format(TempString, sizeof(TempString), "%s", UseString);         StripQuotes(TempString);         TrimString(TempString);         if (strlen(TempString) > 0)         {             DispatchKeyValue(Entity, "use_string", TempString);         }         else         {             // Empty string to overwrite last useaction string             DispatchKeyValue(Entity, "use_string", " ");         }     }     else     {         // Empty string to overwrite last useaction string         DispatchKeyValue(Entity, "use_string", " ");     }     if (strlen(UseSubString) > 0)     {         Format(TempString, sizeof(TempString), "%s", UseSubString);         StripQuotes(TempString);         TrimString(TempString);         if (strlen(TempString) > 0)         {             DispatchKeyValue(Entity, "use_sub_string", TempString);         }         else         {             // Empty string to overwrite last useaction string             DispatchKeyValue(Entity, "use_sub_string", " ");         }     }     else     {         // Empty string to overwrite last useaction string         DispatchKeyValue(Entity, "use_sub_string", " ");     }     // Apply model and no draw model flag.     // This fixes missing glow and use strings.     SetEntityModel(Entity, BUTTON_MODEL);     int Effects = GetEntProp(Entity, Prop_Send, "m_fEffects");     Effects |= 32;     SetEntProp(Entity, Prop_Send, "m_fEffects", Effects);     // Apply bounds for correct use range.     float MinBounds[3] = {         BUTTON_MODEL_MINBOUNDS_X,         BUTTON_MODEL_MINBOUNDS_Y,         BUTTON_MODEL_MINBOUNDS_Z};     MinBounds[2] += FUNC_BUTTON_Z_OFFSET;     float MaxBounds[3] = {         BUTTON_MODEL_MAXBOUNDS_X,         BUTTON_MODEL_MAXBOUNDS_Y,         BUTTON_MODEL_MAXBOUNDS_Z};     MaxBounds[2] -= FUNC_BUTTON_Z_OFFSET;     SetEntPropVector(Entity, Prop_Send, "m_vecMins", MinBounds);     SetEntPropVector(Entity, Prop_Send, "m_vecMaxs", MaxBounds);

Thank you very much. but when I set the model I get an error message in the server console,
just warning me that I am trying to set a non brush model to the entity.Is there a way to avoid it?

[Dragokas]

Maybe set another "brush" model. Or find a ready one on some map and read what model name it uses, like enum all entities and check by class.