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[solved] mouse click movement (strategy game) problem
#385039
10/11/11 23:34
10/11/11 23:34
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Joined: Dec 2010
Posts: 66
München (Germany)
dice
OP
Junior Member
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OP
Junior Member
Joined: Dec 2010
Posts: 66
München (Germany)
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Hello everybody,
Ive been struggling with this problem the whole evening!
Hopefully someone knows better about vectors and the whole stuff around it!
I'm using the camera view, that is about 1000 quants above the "playing area" with a tilt of -60°.
Now I have a player down there, which I want to move with the help of mouse clicks on blocks (the ground).
I dont know how to manage it! I tried several things with c_trace, vec_for_screen, rel_for_screen,
mouse_pos3d, mouse_dir3d, etc... but nothing will work correctly!
My idea was the following:
youre sending an (invisible) entity directly from the camera view to the ground and
let it stop when arrived at the bottom! Then let the player move to this entity and delete the entity...
Is the idea behind it okay? How can I realize it?
Greetings,
Tino
Last edited by dice; 10/13/11 13:52.
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Re: mouse click movement (strategy game) problem
[Re: dice]
#385043
10/12/11 01:31
10/12/11 01:31
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Joined: Jul 2008
Posts: 1,178
England
MrGuest
Serious User
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Serious User
Joined: Jul 2008
Posts: 1,178
England
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easiest way if you're just looking for an entity is mouse_ent. if you need to do something using c_trace try
ENTITY* trace_getEntity(long flags){
VECTOR vecFrom, vecTo;
vec_set(vecFrom, vector(mouse_pos.x, mouse_pos.y, 0));
vec_set(vecTo, vector(mouse_pos.x, mouse_pos.y, 5000));
vec_for_screen(vecFrom, camera);
vec_for_screen(vecTo, camera);
var trace = c_trace(vecFrom, vecTo, flags);
if(trace){
return(hit.entity);
}else{
return(NULL);
}
}
the code is pretty obvious as to what it's doing, just call this function on your event to direct the player hope this helps
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Re: mouse click movement (strategy game) problem
[Re: PadMalcom]
#385071
10/12/11 11:19
10/12/11 11:19
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Joined: Dec 2003
Posts: 988
Germany, Magdeburg
JoGa
User
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User
Joined: Dec 2003
Posts: 988
Germany, Magdeburg
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I did this for my game on this way:
while(1)
{
VECTOR to;
if(mouse_right) // Recktsklick ist Bewegung und Angreifen
{
//while(mouse_right) {wait(1);}
vec_set(to, mouse_dir3d);
vec_normalize(to, 3000);
vec_add(to, mouse_pos3d);
c_trace(camera.x,to.x,IGNORE_ME|SCAN_TEXTURE);
vec_set(maus_ziel.x,hit.x);
}
//[...]
wait(1);
}
the vector maus_ziel is now the aim. If the distance from player and this vector (vec_dist) is more than 50 Quants, I turned the player to this position and moved him forwart, till the distance is < 50 Quants or he was stucked.
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Re: mouse click movement (strategy game) problem
[Re: JoGa]
#385072
10/12/11 11:48
10/12/11 11:48
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Joined: Dec 2010
Posts: 66
München (Germany)
dice
OP
Junior Member
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OP
Junior Member
Joined: Dec 2010
Posts: 66
München (Germany)
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Alright, the code of JoGa is working fine - thx a lot! I'll use this in my game... Why is the first reply not working? I changed trace vector z to -5000, but it wont work  GreetZ, dice
Last edited by dice; 10/12/11 11:49.
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Re: mouse click movement (strategy game) problem
[Re: PadMalcom]
#385073
10/12/11 11:54
10/12/11 11:54
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Joined: Jul 2008
Posts: 1,178
England
MrGuest
Serious User
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Serious User
Joined: Jul 2008
Posts: 1,178
England
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Hey dice, this idea can be realised much easier, you do not need to create an entity and let the player walk there! Just use MrGuests method to trace from your mouse position to the ground and when you hit your terrain/block you have the vector your player will have to walk to.
@MrGuest don't you need to do a vec_to_screen on the mouse position at the beginning? And you have to trace down to -5000 not to 5000 otherwise you'll trace up into the sky. here's it working
//trace
#include <acknex.h>
#include <default.c>
var TRACE_METHOD = 1; //change to 0 for mouse_ent method
ENTITY* trace_getEntity(long flags){
VECTOR vecFrom, vecTo;
vec_set(vecFrom, vector(mouse_pos.x, mouse_pos.y, 0));
vec_set(vecTo, vector(mouse_pos.x, mouse_pos.y, 5000));
vec_for_screen(vecFrom, camera);
vec_for_screen(vecTo, camera);
var trace = c_trace(vecFrom, vecTo, flags);
if(trace){
return(hit.entity);
}else{
return(NULL);
}
}
void main(){
mouse_mode = 4;
level_load(NULL);
int x, y;
for(x = -128; x <= 128; x+=16){
for(y = -128; y <= 128; y+=16){
ent_create(CUBE_MDL, vector(x, y, 0), NULL);
}
}
vec_set(camera.x, vector(-200, -200, 200));
vec_set(camera.pan, vector(45, -45, 0));
def_camera = 1;
def_move();
while(1){
if(TRACE_METHOD == 0){
if(mouse_ent){
watched = mouse_ent;
set(mouse_ent, LIGHT);
}
}else{
you = trace_getEntity(SCAN_TEXTURE | USE_POLYGON | USE_BOX);
if(you){
watched = you;
set(your, LIGHT);
}
}
wait(1);
}
}
vec_to_screen would convert a XYZ position to screen co-ordinates which we already have, and although -5000 would seem to make sense (using the traditional method of c_trace) it would place it 5000 quants behind the camera as you're converting it 
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