Exploding Nails
Author: Triften ChmilSource: https://www.insideqc.com/qctut/qctut-11.shtml
Introduction This tutorial will tell you how to change the regular wussy nailgun into a weapon of mass destruction. Instead of regular nails, you will have time-delay explosive nails (a la Ghost in the Shell). 1.5 seconds after the last one hits, everyone with a nail sticking out of the will go critical and make a BIG mess.
Step 1
First, open weapons.qc and go down to launch_spike. It'll look like this:
/*
===============
launch_spike
Used for both the player and the ogre (From QTest? Now, that's a bit outdated, eh?)
===============
*/Above this we will create a new function, W_FireDarts. We have to create a new function or else the scraggs will be certain death. Just cut and paste this or whatever:
void(float ox) W_FireDarts =// the ox makes the nails come out of each barrel
{
local vector dir;
local entity dart; //our dart entity
if (self.ammo_nails >= 2 && self.weapon == IT_SUPER_NAILGUN)
{
W_FireSuperSpikes (); //fire spikes and not darts if you are using the super nailgun
return;
}
self.punchangle_x = -4;//the kickback
self.currentammo = self.ammo_nails = self.ammo_nails - 1;
sound (self, CHAN_WEAPON, "weapons/rocket1i.wav", 1, ATTN_NORM);
self.attack_finished = time + 0.2;
dir = aim (self, 1000);
dart = spawn ();//creat the dart
dart.owner = self;//you are the owner
dart.movetype = MOVETYPE_FLYMISSILE;//It doesn't bounce
dart.solid = SOLID_BBOX;//it doesn't share space with other items
dart.angles = vectoangles(dir);
dart.touch = dart_touch;//when touched call dart_touch
dart.classname = "spike";
dart.think = SUB_Remove; //After 6 seconds of uneventful flight,
dart.nextthink = time + 6; //remove the dart
setmodel (dart, "progs/spike.mdl");
setsize (dart, VEC_ORIGIN, VEC_ORIGIN);
setorigin (dart, self.origin + '0 0 16' + v_right*ox);
dart.velocity = dir * 700; //the dart's speed
};Step 2
Above this we will have to define the various touch and think functions Here goes:
void() dart_touch =
{
local float rand;
if (other == self.owner)
return; //If it hits you, do nothing
if (other.solid == SOLID_TRIGGER)
return; // trigger field, do nothing
if (pointcontents(self.origin) == CONTENT_SKY)
{
remove(self);
return;
}
// hit something that bleeds
if (other.takedamage)
{
spawn_touchblood (4);
T_Damage (other, self, self.owner, 4); //Low damage
self.velocity = (self.velocity * 0); //Set's the spike up so it sticks
self.avelocity = VEC_ORIGIN; //to an enemy
self.enemy = other;
dart_wait = time + 1.5; //the time delay for detonation
self.think = dart_stick; //In a tenth second
self.nextthink = (time + 0.10); //go to dart_stick
self.touch = dart_fuse; //now when touched call dart_fuse
}
else //otherwise the dart hits a wall...
{
WriteByte (MSG_BROADCAST, SVC_TEMPENTITY);
WriteByte (MSG_BROADCAST, TE_SPIKE);
WriteCoord (MSG_BROADCAST, self.origin_x);
WriteCoord (MSG_BROADCAST, self.origin_y);
WriteCoord (MSG_BROADCAST, self.origin_z);
remove(self);
}
};Above this we define dart_fuse and dart_stick
void() dart_fuse = //this is our touch function
{
if (time > dart_wait) //if touching something and 1.5 seconds pass, then..
{
// T_RadiusDamage (self, self.owner, 120, world); //You can chose to do radius dmg
T_Damage (other, other, self.owner, 400); //or dmg only to the poor sap with
WriteByte (MSG_BROADCAST, SVC_TEMPENTITY); //the dart.
WriteByte (MSG_BROADCAST, TE_EXPLOSION); //Then the dart becomes an explosion
WriteCoord (MSG_BROADCAST, self.origin_x);
WriteCoord (MSG_BROADCAST, self.origin_y);
WriteCoord (MSG_BROADCAST, self.origin_z);
BecomeExplosion ();
remove(self); //The dart exploded, therefore we remove it
}
};
void() dart_stick = //our think function
{
if ( ((self.enemy != world) && (self.enemy.health > 1)) ) //if the dart is on a live enemy then..
{
self.origin = self.enemy.origin; //it stays on the enemy and
if ( (self.velocity == VEC_ORIGIN) ) //moves with the enemy
{
self.avelocity = VEC_ORIGIN;
}
}
else //if the enemy dies then..
{
WriteByte (MSG_BROADCAST, SVC_TEMPENTITY); //explode harmlessly
WriteByte (MSG_BROADCAST, TE_EXPLOSION); //or you could make it do damage,
WriteCoord (MSG_BROADCAST, self.origin_x); //doesn't matter.
WriteCoord (MSG_BROADCAST, self.origin_y);
WriteCoord (MSG_BROADCAST, self.origin_z);
BecomeExplosion ();
}
self.nextthink = (time + 0.10); //after another .1 sec check this function again
};Step 3
Finally we mention functions ahead of time to define later and add one thing to player.qc. Add this above dart_fuse:
void() s_explode1;
void() BecomeExplosion;
float dart_wait;
void() W_FireSuperSpikes;Open player.qc and find this:
void() player_nail1 =[$nailatt1, player_nail2 ]
{
self.effects = self.effects | EF_MUZZLEFLASH;
if (!self.button0)
{player_run ();return;}
self.weaponframe = self.weaponframe + 1;
if (self.weaponframe == 9)
self.weaponframe = 1;
SuperDamageSound();
W_FireSpikes (4);
self.attack_finished = time + 0.2;
};
void() player_nail2 =[$nailatt2, player_nail1 ]
{
self.effects = self.effects | EF_MUZZLEFLASH;
if (!self.button0)
{player_run ();return;}
self.weaponframe = self.weaponframe + 1;
if (self.weaponframe == 9)
self.weaponframe = 1;
SuperDamageSound();
W_FireSpikes (-4);
self.attack_finished = time + 0.2;
};Change both of the W_FireSpikes to W_FireDarts. Leave the 4 and -4 alone.
Step 4
Compile and run in with guns a-blazin'!
Tags: tutorial, quakec, qc, insideqc, weapon
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