Projectiles

[RozenMaiden]

Hi,

so how would you implement custom projectiles? that have a smooth movement, aren't laggy (well atleast not laggier than the standard projectiles or not much laggier) and have custom speed?

[Chompy]

Basicly you can start with making a serverside class that handles movement (either by using move() or x,y altering using cos and sin) and acts like a projectile.

And to cast it, simply do something like..

PHP Code:

function onCastProjectile(level, x, y, angle, speed) {
  with(findlevel(level).putnpc2(x, y, "")) {
    this.angle = angle;
    this.speed = speed; // tiles per 0.1 sec
    this.join("custom_projectile");
  }
} 


But beware to use destroy(); inside the class when it hits a player or a wall (Use custom checks for that) so it's properly destroyed

This is just an idea of how you can do it. If others have an other suggestion of how to do it, they can post that.

[RozenMaiden]

hm i tried around with particles and added a modifier to decrease their alpha. but the image of the particle went pure-white instead of becoming transparent?

[Chompy]

Originally Posted by RozenMaiden

hm i tried around with particles and added a modifier to decrease their alpha. but the image of the particle went pure-white instead of becoming transparent?

Huh? What does that have to do with custom projectiles?

But anyway, what is your this.alpha value at, and what is this.red, this.green and this.red (RGB) at?
Also, you could try setting this.mode to 2

[cbk1994]

When creating custom projectiles, I strongly recommend using move() rather than altering the x & y; it will be much easier on the server, also.

PHP Code:

function onCreated() {
  onMovementFinished();
}
function onMovementFinished() {
  temp.movex = sin(this.angle) * SPEED_HERE;
  temp.movey = cos(this.angle) * SPEED_HERE;
  move(movex, movey, .1, 8);
} 


[RozenMaiden]

so how would i add trajectory trails? the automatic particle emission is way too slow for that

[cbk1994]

Originally Posted by RozenMaiden

so how would i add trajectory trails? the automatic particle emission is way too slow for that

Edit the GANI of the projectile, and add a GANI script.

[RozenMaiden]

a gani script with what?

[Chompy]

Originally Posted by RozenMaiden

a gani script with what?

The script for the particle effect. The particle effect which cause a trail :o

[cbk1994]

This might help.