How to move vertices in UPBGE python?

Game Engine Game Engine Support and Discussion
1

Like, how would I create a script that manipulates the vertices of a plane or other shape? I get all vertices on the mesh through python, get the XYZ, then set the XYZ to something like 1 on the Z axis, press P, and… nothing??

2

Could you share your code. There’s numerous ways to move any or all vertices and it’ll reduce wasted time if others can better understand what you’re trying to accomplish.

3 
import bge
cont = bge.logic.getCurrentController()
own = cont.owner
mesh = own.blenderObject.data
verts = mesh.vertices
for vert in verts:
    vert.co += vert.normal *. 01
4

I don’t have any code at the moment.

5

Depending on witch version you use for 0.2.5:

def raise_vertex(cont):

    own = cont.owner
         
    mesh = own.meshes[0]
    vertex_count = mesh.getVertexArrayLength(0)

    for index in range(0, vertex_count):

        vert = mesh.getVertex(0,index)
        
        #if index number is an even number
        if index % 2 == 0: 
            
            #height limit
            if vert.z < 1.0: 
                
                #raise the vertex
                vert.z += 0.01

Always(true pulse) → python(module) → scriptname.raise_vertex

1 Like
6

I’m using 0.3

7

ok, won’t be a problem, mine still works in 3.0 only Bpr’s solution would be faster / better due to using bpy.

8

We don’t have kx_meshProxy anymore.

In 3.0 we have to use bpy *

1 Like
9

Forgot to reply back to this thread. Here’s a simple script to set a mesh’s Z-axis local to a value of 1.0:

import bge

def main(self):

    for v in self.owner.blenderObject.data.vertices:
        v.co[2] = v.co[2] + 1