I've been stuck on this problem for weeks now. I'm trying to find a way for the mouse cursor to touch something in 3D space which causes text to pop up to let the user know that the mouse is touching an object. I am still having problems trying to get it work. This is what I have done:

Code:

---

	string str1 = "The mouse is touching the tree. \n Testing the text now. \n testing the line breaks also! loading.....";


mouse_test();
mouse_event();

function mouse_event()
{
	
	if(event_type == event_touch)
	{
		my.transparent = on;
		my.alpha = 50;
		contact_text.string = str1;
	}
	if(event_type == event_release)
	{
		my.transparent = off;
	}
	

}


function mouse_test()
{

while(1)
{

temp.x = MOUSE_POS.x;
temp.y = MOUSE_POS.y;
temp.z = 9999.99;
vec_for_screen(temp, camera); 
wait(1);
}
}

---

thanks in advance...

You need to enable mouse engine pointer "mouse_mode = 1",
then sync the mouse_pos with mouse_cursor :

Code:

---

function mouse_test()
{
   mouse_mode = 1;
   mouse_range = 2000; // if necessary
   while(1)
   {
      mouse_pos.x = mouse_cursor.x;
      mouse_pos.y = mouse_cursor.y;

      temp.x = MOUSE_POS.x;
      temp.y = MOUSE_POS.y;
      temp.z = 9999.99;
      vec_for_screen(temp, camera);
      wait(1);
   }
}

It's still not working when I hover the mouse over the tree.

You've forgotten add to entity's action:

my.enable_mouse = on;
my.ENABLE_touch = ON;
my.enable_realase = on;

still not working...

Here's the breakdown:

Func.wdl
--------
Code:

---

font standard_font = "Arial",3,18;

text contact_text	
{
  font = standard_font;
  layer = 10;
  pos_x = 350;
  pos_y = 100;
  size_y = 70;
  offset_y = 0;
  flags = center_x, narrow, visible;
} 


	string str1 = "The mouse is touching the tree. \n Testing the text now. \n testing the line breaks also! loading.....";


function mouse_event()
{
		
	if(event_type == event_touch)
	{
		my.transparent = on;
		my.alpha = 50;
			contact_text.string = str1;
	}
	if(event_type == event_release)
	{
		my.transparent = off;
	}
	

}


function mouse_test()
{
mouse_mode = 1;
mouse_range = 2000;
while(1)
{
mouse_pos.x = mouse_cursor.x;
mouse_pos.y = mouse_cursor.y;
temp.x = MOUSE_POS.x;
temp.y = MOUSE_POS.y;
temp.z = 9999.99;
vec_for_screen(temp.z, camera);

if(event_type == event_touch)
{
contact_text.string = str1; 
}

wait(1);
}
}

---

Var.wdl
-------
Code:

---

entity* tree;


action npc1_act
{
	tree = me;
	tree = my;
enable_mouse = on;
my.enable_click = on;
my.enable_touch = ON;
my.enable_release = on;

my.event = mouse_event();
mouse_range = 20;
mouse_mode = 1;
}


view camera
{
	layer = 0;
 	arc = 60;
 	aspect = 1;
 	ambient = 80;
 	flags = visible;
}

---

Main.wdl
--------
Code:

---

include <var.wdl>;
include <int.wdl>;
include <func.wdl>;


//Startup()
starter start_up()
{
	level_load(field_level);

while(tree == null)
{
	wait(1);
}


	bg_color.red = 0;
	bg_color.green = 3;
	bg_color.blue = 30;
	
	
	wait(10);

mouse_test();
mouse_event();

}

---

couple of mistakes

mouse_range = 20; // increase this value !! to f.e. 9999

MOUSE_POS.X = POINTER.X; MOUSE_POS.Y = POINTER.Y;
temp.x = MOUSE_POS.x;
temp.y = MOUSE_POS.y;
temp.z = 1000;
vec_for_screen(temp,CAMERA); //not temp.z


in function mouse_test()
if(event_type == event_touch)
{
contact_text.string = str1;
} - this is useless ;P this should be set in some entity's action not in stand-alone function

I think that all you need is:
1.
- in main function
mouse_mode = 1;
mouse_range = 9999;
- in main's function loop
MOUSE_POS.X = POINTER.X; MOUSE_POS.Y = POINTER.Y;

2. in entity's action
my.enable_mouse = on; my.enable_touch = on; my.enable_realase = on;
my.event = my_event;

3. function my_event
{
if(event_type == event_touch){my.transparent = on; my.alpha = 50;}
if(event_type == event_realase){my.transparent = off; my.alpha = 100;}
}

OK... this is working for sure, I've checked this. YouTube
Just copy this code, that's all YOu need:

Code:

---

 
entity* player;
bmap arrow ="arrow_blue.pcx";

function my_event
{
	if(event_type == event_touch)
	{
		my.transparent = on;
	}
	if(event_type == event_release)
	{
		my.transparent = off;
	}
}

action my_player
{
	player = me;
	mouse_mode = 1;//make cursor visible and moving
	mouse_map = arrow;//mouse bmap
	mouse_range = 10000;//mouse range from camera
	my.enable_touch = on;
	my.enable_release = on;
	my.event = my_event;
	while(me)
	{
		MOUSE_POS.X = POINTER.X; MOUSE_POS.Y = POINTER.Y;
	wait(1);	
	}
}

---