I have a rocket and I can move it with arrow keys. Left and right rotate the rocket and up pushes the rocket forward. I have a rocket fire trail (made with particle script) at the end of the rocket BUT if I rotate the rocket, the trail does not rotate. So the trail will appear on the side of the rocket or the front, it wont stay at the end or back of the rocket. How do I fix that. Should the trail rotate with the rocket because if so, I'm not sure how. Here is my trail code which is tied to my rocket object.

Whenever you use a stream part type in the step event, it doesn't alter what you see on the screen so there is always a stream in the direction it was first displayed as a stream is a constantly running loop of your particles. You need to change your part_type_stream to part_type_burst in the step event and you need to check there isn't a stream triggered elsewhere.

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What's inside the neon_trail script? Is a stream triggered in here? You'll also need to move the part_type_direction to your step event so the direction of the particles is updated every frame. Also in your. Whenever you use a stream part type in the step event, it doesn't alter what you see on the screen so there is always a stream in the direction it was first displayed as a stream is a constantly running loop of your particles. You need to change your part_type_stream to part_type_burst in the step event and you need to check there isn't a stream triggered elsewhere.

What's inside the neon_trail script? Is a stream triggered in here? You'll also need to move the part_type_direction to your step event so the direction of the particles is updated every frame. Also in your. Code: Sname = part_system_create() particle1 = part_type_create(); part_type_shape(particle1,pt_shape_flare); part_type_size(particle1,0.12,0.42,0,1); part_type_scale(particle1,0.45,1); part_type_color3(particle1,16711935,2); part_type_alpha3(particle1,0.62,0.35,0.02); part_type_speed(particle1,2.39,3.95,0.08,0); part_type_direction(particle1,85,95,0,4); part_type_gravity(particle1,0,270); part_type_blend(particle1,0); part_type_life(particle1,1,20); emitter1 = part_emitter_create(Sname); part_emitter_region(Sname,emitter1,x,x,y,y,0,0); part_emitter_burst(Sname,emitter1,particle1,5). If you're making a rocket flame trail, I'd get rid of the emitter altogether, and just create the particles using part_particles_create() in the End Step event.

You would also place the part_type_direction function in the end step event. Place it in the end step event, because then the particle direction will change after the rocket's angle has changed, otherwise the flames will appear to be lagging behind the rocket angle.

Just as an example, here's the system I used for my lander in my game, which is a similar effect. Keep in mind, my lander sprite may be oriented differently from yours, and you may want different effects, so you should just take this as an example, not a replacement. If you're making a rocket flame trail, I'd get rid of the emitter altogether, and just create the particles using part_particles_create() in the End Step event. You would also place the part_type_direction function in the end step event. Place it in the end step event, because then the particle direction will change after the rocket's angle has changed, otherwise the flames will appear to be lagging behind the rocket angle.