SetUniform doesn't handle vector 2 properly

[destructor465]

The SetUniform function doesn't work properly for vectors. For example if I do this:

rl.SetUniform(positionLoc, []float32{position.X, position.Y}, int32(rl.ShaderUniformVec2))

the uniform doesn't get updated, I looked into why and found out that issue is the count parameter.
I think it expects number of values as in if it's vector 2 uniform then it's number of vectors not just floats.
So I modified the raylib-go locally to fix the issue, my current solution is this:

// SetUniform - Set shader value uniform
func SetUniform(locIndex int32, value []float32, uniformType int32) {
	comps := 1
	switch uniformType {
	case int32(ShaderUniformVec2):
		comps = 2
	case int32(ShaderUniformVec3):
		comps = 3
	case int32(ShaderUniformVec4):
		comps = 4
	default:
		comps = 1 // float/bool/int
	}
	count := len(value) / comps
	if count < 1 {
		count = 1
	}
	C.rlSetUniform(C.int(locIndex), unsafe.Pointer(unsafe.SliceData(value)), C.int(uniformType), C.int(count))
}

But this doesn't fully fix it for other types such as int vec or u int vec, it's enough for my case.
Another solution could be to just expose the count.

[gen2brain]

@destructor465 You are right, the count should be exposed. In your case, the count should be one because you are sending one vec2 to the shader. Additionally, looking at the function https://github.com/gen2brain/raylib-go/blob/master/raylib/rlgl.h#L4307, it should also accept int32 and uint32. Can you try with something like this:

// SetUniform - Set shader value uniform ([]float32, []int32, []uint32)
func SetUniform(locIndex int32, value any, uniformType, count int32) {
	var cvalue unsafe.Pointer
	switch v := value.(type) {
	case []float32:
		cvalue = unsafe.Pointer(unsafe.SliceData(v))
	case []int32:
		cvalue = unsafe.Pointer(unsafe.SliceData(v))
	case []uint32:
		cvalue = unsafe.Pointer(unsafe.SliceData(v))
	}
	C.rlSetUniform(C.int(locIndex), cvalue, C.int(uniformType), C.int((count)))
}

If all is good, you can send a PR. I will later add the same to the purego version.

[destructor465]

That works. How do I send the PR? @gen2brain