DrawBall (UPBGE 0.3)

Game Engine Works in Progress and Game Demos
1

Spontanious idea made in few minutes. You are allowed to make a great game out of it :slightly_smiling_face:

Left Mouse Button:  Draw line
Space Key: Restart Game

UPBGE_0.3_DrawBall.blend (996.4 KB)

4 Likes
2

As little math-coding exercise I added the option to show the trajectory of the Ball:

  • enable “show_trajectory” in ZSE game properties
3

Here is an alternative Version with realtime texture painting.
Ball reads color information and reacts physically.

Left Mouse Button:  Draw Green Ground
Middle Mouse Button:  Draw Blue Air (Lift)
Right Mouse Button:  Erase

Space Key: Restart Game

Note:
    refreshing VideoTexture is costy.
    resolution can be set in property "res" of background plane

UPBGE_0.3_DrawBall2.blend (1.1 MB)

1 Like
4

Version 3: FlowMap

Brush color changes dependent on stroke direction.
This flowmap color directs the linear velocity of the Ball.

Left Mouse Button:  Draw FlowMap Color  (dependent on mouse movement direction)
Right Mouse Button:  Erase
Space Key: Restart Game

UPBGE_0.3_DrawBall3.blend (1.0 MB)

5

what u did after the second video doesnt bring much. The inner idea is great ! Maybe can u tune music when the game bounce our draw a line ?

6

You dare to say ?!?!?!?
LOL - just kidding

I admit I’m not gonna make a cool game out of it.
So it’s not a development of the initial idea but different ideas that evolved from it.
For me it’s an exciting journey to explore and learn.
Version 2
is about detecting collisions based on raster graphics and calculating physics.
For this I had to find a way to read pixel color information from the VideoTexture.

Version 3
is about understanding, creating and using FlowMaps.
For this I had to find a way to modify the brush on the fly.

(btw, say you have a flowmap as reference texture:
Now what would be cool were to have a water shader using that…)
ah, something like this :slight_smile: :