So, let's start opening up the chase.c. At the begin, you will find this:
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cvar_t chase_back = {"chase_back", "100"};
cvar_t chase_up = {"chase_up", "16"};
cvar_t chase_right = {"chase_right", "0"};
cvar_t chase_active = {"chase_active", "0"};
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cvar_t chase_roll = {"chase_roll", "0"};
cvar_t chase_yaw = {"chase_yaw", "180"};
cvar_t chase_pitch = {"chase_pitch", "45"};
Below, we have the Chase_Init () function. We paste this at the end of the code:
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Cvar_RegisterVariable (&chase_roll);
Cvar_RegisterVariable (&chase_yaw);
Cvar_RegisterVariable (&chase_pitch);
Finally, we will replace the original Chase_Update function with this:
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void Chase_Update (void)
{
int i;
float dist;
vec3_t forward, up, right;
vec3_t dest, stop;
if ((int)chase_active.value != 2)
{
// if can't see player, reset
AngleVectors (cl.viewangles, forward, right, up);
// calc exact destination
for (i=0 ; i<3 ; i++)
chase_dest[i] = r_refdef.vieworg[i]
- forward[i]*chase_back.value
- right[i]*chase_right.value;
chase_dest[2] = r_refdef.vieworg[2] + chase_up.value;
// find the spot the player is looking at
VectorMA (r_refdef.vieworg, 4096, forward, dest);
TraceLine (r_refdef.vieworg, dest, stop);
// calculate pitch to look at the same spot from camera
VectorSubtract (stop, r_refdef.vieworg, stop);
dist = DotProduct (stop, forward);
if (dist < 1)
dist = 1;
r_refdef.viewangles[PITCH] = -atan(stop[2] / dist) / M_PI * 180;
TraceLine(r_refdef.vieworg, chase_dest, stop);
if (Length(stop) != 0)
VectorCopy(stop, chase_dest);
// move towards destination
VectorCopy (chase_dest, r_refdef.vieworg);
}
else
{
chase_dest[0] = r_refdef.vieworg[0] + chase_back.value;
chase_dest[1] = r_refdef.vieworg[1] + chase_right.value;
chase_dest[2] = r_refdef.vieworg[2] + chase_up.value;
// this is from the chasecam fix - start
TraceLine (r_refdef.vieworg, chase_dest, stop);
if (Length (stop) != 0)
{
VectorCopy (stop, chase_dest);
}
// this is from the chasecam fix - end
VectorCopy (chase_dest, r_refdef.vieworg);
r_refdef.viewangles[ROLL] = chase_roll.value;
r_refdef.viewangles[YAW] = chase_yaw.value;
r_refdef.viewangles[PITCH] = chase_pitch.value;
}
}
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chase_active 2
chase_up 64
chase_pitch 45
chase_back 200