Example code:
So you have this:
int levelStream[] = {
enemy(110, 0, image_LUT_enemy_ship_0_light, image_LUT_enemy_bullet_1_light, callback_LUT_0, LIGHT, 1),
enemy(220, 0, image_LUT_enemy_ship_0_shadow, image_LUT_enemy_bullet_1_light, callback_LUT_0, SHADOW, 1),
cmd_killed,
LVLSTR_END
};
and you (probably) access it like this:
levelStream[n]
If you did this:
int levelStreamAArray = {enemy(...),enemy(...),cmd_killed,LVLSTR_END};
int levelStreamA(int n) = levelStreamArray[n];
int (*levelStream)(int);
levelStream = &levelStreamA
and accessed like this:
levelStream(n)
then you could also do this with just a change to your levelStream pointer:
int levelStreamB(n) = switch (n%3)
    case 0:
        return enemy(110, 0, image_LUT_enemy_ship_0_light, image_LUT_enemy_bullet_1_light, callback_LUT_0, LIGHT, 1);
        break;
    case 1:
        return enemy(220, 0, image_LUT_enemy_ship_0_shadow, image_LUT_enemy_bullet_1_light, callback_LUT_0, SHADOW, 1),
        break;
    case 2:
        return cmd_killed;
        break;
    default: // Stops the compiler from yelling at you and is probably good in case of lobsters
        return LVLSTR_END;
levelStream = &levelStreamB
You access it the same:
levelStream(n)
Make sure your functions don't grab the whole array/function at once, and you're great! (New idea: survive for X amount of time; you could just put a case at top that gives LVLSTR_END if the time is done)

Please try to stay relevant. This is useful information if you're trying to go from 3.6 to 3.2, not from 3.2 to 3.1. Wrong versions.

Idea: If you use a function that takes an index as a wrapper instead of directly accessing the array, then you could use both the current level stream idea and use a streamy stream, such as something infinite or random or better than what I can think of right now.

The original VVVVVV did have invincibility & speed adjustments.

DJ Omnimaga: Jujus
Juju: DJ

Quote from: GinDiamond on May 18, 2014, 09:56:20 am

So are these worlds now infinite?

No, not infinite, just 69905 blocks in X, Y, and Z-direction
But there will be more and more glitches and artifacts the further you go.

...
...
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THE FAR LANDS

Don't forget [alpha].