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PaulC wrote:Code:random_switch(FEAT_ROADVEHS, SELF, switch_sounds_random) { 1: SOUND_CAR_HORN_2; 5: CB_RESULT_NO_SOUND;}But that just results in no running sound. Not entirely sure what I'm meant to be doing and I couldn't find any examples to guide me, so I'd be most grateful for any help steering me in the right direction! Calling it a day for now, will take another stab at this tomorrow.

Gwyd wrote:2: Try doing visual_effect: return 0 in callbacks for the no breakdown smoke.

3: Explain more.

switch(FEAT_AIRCRAFT, SELF, switch_small_ufo_bd, vehicle_is_broken) {
	0:	spriteset_small_ufo_mv;
	1:	spriteset_small_ufo_bd;
}

spritegroup spritegroup_small_ufo {
	loading:	spriteset_large_ufo_st;
	loaded:	switch_small_ufo_bd;
}

@[Knmlc ERROR: "ogfx_ufo.nml", line 68: Expected a sprite set reference

PaulC wrote:Thanks for the tip. I've played around with it a bit more but still can't crack it so I'm going to set it aside for now, hopefully I can come back to it when I have a better idea of what I'm doing. I do appreciate the help though, it's all been very useful!

Some more questions:

1) I've coded up the disaster ufos as playable vehicles, which is rather fun! Currently I've done this by reusing the sprites from the base set, but is there any way I can leave out the sprites and just reference sprite numbers instead? Or is that not possible with vehicles?

2) I've set the following properties:

Code: Select all

misc_flags:	bitmask(AIRCRAFT_FLAG_NO_BREAKDOWN_SMOKE);
sound_effect:	SOUND_MAGLEV;

I think I've done this right but neither works: I still get breakdown smoke and the default helicopter sound. I can change the sound by using the callback instead (though the property should work, yes?) but otherwise this has me stumped. Am I missing something?

3) Is it not possible to reference a switch from a spritegroup? I'm guessing not since NML didn't like it but this seems rather limiting.

switch(FEAT_AIRCRAFT, SELF, switch_hot_air_balloon_sound, getbits(extra_callback_info1, 0, 8)) {
    SOUND_EVENT_START: sound("sfx/balloon.wav");
}
...
...
...
item(FEAT_AIRCRAFT, item_fire_nation_balloon) {
	property {
	...
	}
	graphics {
 	default: spriteset_fire_nation_balloon;
		additional_text:	string(STR_ORIGIN, string(STR_ORIGIN_AVATAR), string(STR_INSPIRATION), string(STR_LEEG));
		sound_effect:		switch_hot_air_balloon_sound;
		rotor: 				no_rotor; //empty spriteset
}

switch(FEAT_AIRCRAFT, SELF, switch_small_ufo_bd, vehicle_is_broken) {
   0:   spritegroup_small_ufo;
   1:   spriteset_small_ufo_bd;
}

spritegroup spritegroup_small_ufo {
   loading:   spriteset_small_ufo_st;
   loaded:   spriteset_small_ufo_mv;
}

Kaaskroket wrote:Afaik it isn't possible to use a switch in a spritegroup. Haven't tried this snippet yet but it might solve your problem:

PaulC wrote:Right, I have another question... What's the best way to go about refitting? I have a vehicle which I want to carry goods (by default) but also be refittable to mail, food and alcohol. These are the relevant bits of code I'm using to do that:

Code: Select all

cargotable {
	BEER, // Beer
	FISH, // Fish
	FRUT, // Fruit
	GOOD // Goods
}

	refittable_cargo_classes:	bitmask(CC_EXPRESS, CC_MAIL, CC_REFRIGERATED);
	non_refittable_cargo_classes:	bitmask(CC_BULK, CC_LIQUID, CC_OVERSIZED, CC_PASSENGERS, CC_PIECE_GOODS);
	cargo_allow_refit:		[BEER];
	cargo_disallow_refit:		[FISH, FRUT];
	default_cargo_type:		GOOD;

The above does what I want but I don't know if it looks good, there seem to be a number of different ways to go about doing the same thing. If I'm reading it right, NMLTutorial/Cargotable seems to be suggesting that I include all known cargo labels in my table and specify each one individually with the allow/disallow properties. Is that right? It seems a bit longwinded.

supermop wrote:My approach is to specify the classes that I want to allow and disallow, and then only use the specific labels for exceptions, or cases where a cargo might have some confusing classes assigned to it.

PaulC wrote:Then I tried combining this with a random switch which I hoped woud at least make the sound intermittant:

Code: Select all

random_switch(FEAT_ROADVEHS, SELF, switch_sounds_random) {
	1: SOUND_CAR_HORN_2;
	5: CB_RESULT_NO_SOUND;
}

But that just results in no running sound.

PaulC wrote:Right, I have another question... What's the best way to go about refitting? I have a vehicle which I want to carry goods (by default) but also be refittable to mail, food and alcohol. These are the relevant bits of code I'm using to do that:

Code: Select all

	non_refittable_cargo_classes:	bitmask(CC_BULK, CC_LIQUID, CC_OVERSIZED, CC_PASSENGERS, CC_PIECE_GOODS);