Debug info string to text object

Game Engine Game Engine Support and Discussion
#1

Hi,

I just wanna to print debug info from “speed” string into a text object to show car speed.

import bge

cont = bge.logic.getCurrentContoller
own = cont.owner

textobject["speedo"] = speedo

This is my code but probably its wrong
Any ideas how to do it?

#2

what, ‘speedo’ is not defined?
you have to feed speedo with getLinearVelocity before feeding textobject[“speedo”] with speedo ?

#3

I want to display speed as numer, not as “arrow” in speed meter

#4

maybe we have to get into some math to convert the vectors into float (i never did it for that).
sum the components and divide by three?

#5

I have this debug info. As you can see in debug info one shows current car speed. I just wanna to show this value in Text object in HUD
Is it possible to set text value in text object using python?
image

#6

if something is possible it’s through python.
i think you have to convert the int ‘speed’ variable to a string feeded to the text property.

#7

I found on YouTube a car physics script a few minutes ago and this script/blend file already have speedo meter and script for it looking like this

import bge


cont = bge.logic.getCurrentController()
own = cont.owner



scene = bge.logic.getCurrentScene()

C1h = scene.objects ['C1h']

own["Text"] = (C1h.getLinearVelocity(True).y)*3

image
This is hierarchy
And with this small script we can see actual car speed

#8

oh… then:

the text object text property has to be called “Text” like:
textobject[“Text”] = speedo

you cannot say textobject[“speedo”] = speedo
but you dont need to convert it into a string.

why show the hierarchy? if you put the code on the text object it becomes the own.

car = scene.objects [‘car’]
speed = car [‘speed’]
own[“Text”] = speed

#9

textobject.text = speedo

https://docs.blender.org/api/2.79/bge.types.KX_FontObject.html?highlight=kx%20text#bge.types.KX_FontObject.text

1 Like
#10

Thanks
This is a my edit of this code from link

# Display a message about the exit key using a Font object.
import bge

scene = bge.logic.getCurrentScene()
co = bge.logic.getCurrentController()
font = co.owner

CoM = scene.objects ['CoM']
speeds = CoM.getLinearVelocity(True).y*3
font.text = (speeds)

I’m trying to get velocity from parrent object called “CoM” and display it in text object as number (car speed) but I’m doing something wrong because I’ve got only “Text” value

#11

Strings are character arrays. One can’t just set an array to equal a single numerical value.

You need to convert it first. text = str(value)
Or use fancy format. text = "Speed: %f"%value

And if you want to show less decimals, text = "Speed: %.Nf"%value where N is the number of decimals. So text = "Speed: %.2f"%value prints up to two decimal places while text = "Speed: %.3f"%value shows up to three.