Quake DeveLS - Flash Grenades Addon
Author: Paul Currie
Difficulty: Easy
Thanks to NightHawk's
Flash Grenade I've had the priveledge of blasting opponents to pieces when they
can't defend themselves, but I felt that something was missing. So I added an
distance dependent non-linear intensity falloff (fancy words, huh? :) It
basically means that the further off you are, the less blinded you are.
I also added that even if
you threw the grenade you are not completely saved from the flash effects (but
still considerably better off than the other victims). I also added that
turning your back on the grenade doesn't make you immune to it (that's what my
opponents were doing all the damn time). Turning you back on a flash grenade
will save you from the worst effects, but the flash will still light up walls
etc. quite a lot. These two factors make it quite easy to remove the most
harmful effects of the flash greande (i.e. total blindness), but will partially
blind your opponents a lot more often.
1. Adding the code
You will ofcource need
NightHawk's Flash Grenade implemented and working before adding this.
All you
need to do is open up g_weapon.c and find the Flash_Explode() function. Then
just add the lines with the '+' in front of them, and remove/comment out the
ones with '-'.
/*=================fire_grenade=================*/ #define FLASH_RADIUS 300#define BLIND_FLASH 10 // Time of blindness in FRAMES void Flash_Explode (edict_t *ent){ vec3_t offset, v; edict_t *target;+ float Distance, BlindTimeAdd; // Move it off the ground so people are sure to see it VectorSet(offset, 0, 0, 10); VectorAdd(ent->s.origin, offset, ent->s.origin); if (ent->owner->client) PlayerNoise(ent->owner, ent->s.origin, PNOISE_IMPACT); target = NULL; while ((target = findradius(target, ent->s.origin, FLASH_RADIUS)) != NULL) {- if (target == ent->owner)- continue; // You know when to close your eyes, don't you? if (!target->client) continue; // It's not a player if (!visible(ent, target)) continue; // The grenade can't see it + // Find distance+ VectorSubtract(ent->s.origin, target->s.origin, v);+ Distance = VectorLength(v);++ // Calculate blindness factor+ if ( Distance < FLASH_RADIUS/10 )+ BlindTimeAdd = BLIND_FLASH; // Blind completely+ else+ BlindTimeAdd = 1.5 * BLIND_FLASH * ( 1 / ( ( Distance - FLASH_RADIUS*2 ) / (FLASH_RADIUS*2) - 2 ) + 1 ); // Blind partially+ if ( BlindTimeAdd < 0 )+ BlindTimeAdd = 0; // Do not blind at all. + // Not facing it, but still blinded a little if (!infront(target, ent))+ BlindTimeAdd *= .5;- continue;+ // You know when to close your eyes, don't you? Doesn't quite do the job. :)+ if (target == ent->owner)+ {+ target->client->blindTime += BlindTimeAdd * .3;+ target->client->blindBase = BLIND_FLASH;+ continue;+ } // Increment the blindness counter target->client->blindTime += BlindTimeAdd * 1.5; target->client->blindBase = BLIND_FLASH; target->s.angles[YAW] = (rand() % 360); // Whee! // Let the player know what just happened // (It's just as well, he won't see the message immediately!) gi.cprintf(target, PRINT_HIGH, "You are blinded by a flash grenade!!!\n"); // Let the owner of the grenade know it worked gi.cprintf(ent->owner, PRINT_HIGH, "%s is blinded by your flash grenade!\n", target->client->pers.netname); } // Blow up the grenade BecomeExplosion1(ent);}
Feel free to experiment
with the FLASH_RADIUS define. Some like powerful flashes while other prefer
them smaller. With the range falloff it shouldn't make your friends object
totally to a larger flash radius. Bear in mind though that the main loop for calculating
the flash value will run through all objects within the range, so if things
start going slow, decrease the radius. The two if-tests in the main loop
(!target->client and !visible()) will remove the number of false hits, i.e.
calculating flash for a non-player is just silly, but it still has to detect
and run the (!visible()) test which could result in some serious vector
calculus (i.e. floating-point heaven/hell depending on what kind of CPU you own
:).
Tutorial
by Paul Currie .
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