* Permit a map existing in multiple cups, rather than I_Error
- The reason we didn't permit this before was because of marathon plans/advancemap next.
- To that end, in that progression type, a map is only considered in its first valid cup.
All of the player_t references are now full-const instead of const pointer after a certain point. This is because I've made two mistakes so far of modifying the player with this, when it's supposed to be safe to call for HUD as well.
Also uses this split to add a more efficient way to prevent multi-Shrink/SPB.
Also handles NULL player better, for the sake of Battle's K_CreatePaperItem.
- Most of it now requires a reference to itemroulette_t, rather than copying all of the variables over.
- Increased the effect of Frantic Items, as the old scaling was made extremely low because item distance was exponential back then.
- A lot of variables are pre-calculated in itemroulette_t instead of redoing the calculations every time (player count, first place's dist, etc)
- Make most of these functions only accessible by k_roulette.c
- Even when single items get forced into your roulette, the Super Ring Debt effect can happen
- Make the game support setting single items from other gametypes (Pogo Spring-only races work now)
- Fix some item distances not accounting for scale
- Prevent multiple of certain items from rolling at once; Shrinks (not a big deal) and SPBs (OH GOD NO)
- PU_STATIC instead of PU_LEVEL, since player_t is always kept around anyway.
- Don't alloc itemList when cap is 0
- Read/write 0 when itemList is NULL
- Half the scale of the item graphics, and reduce the spacing, so more of the reel can fit in one column.
- Move the item table text over to the right, depending on how many columns were drawn.
- Display the item roulette speed, as well.
This mirrors the `finally` utility in Guidelines Support Library for
ensuring that a cleanup function is always called when the utility
object leaves scope, even when unwinding the stack from an exception.
This is to aid in transitioning malloc/free pairs in function bodies to
be more exception-safe.
The roulette contains NO (non-seeded) RNG anymore. You manually stop it at any time.
Still needs the visual of the items scrolling, to make it not blind.
Instead of the absolute insanity that is V_DrawCroppedPatch, which makes you specify the number of pixels to crop off the top/left and then the number of pixels to show after the crop ... you just use V_SetClipRect to create a rectangle for any future draws to be cropped down to, and V_ClearClipRect afterwards to clear it.
Currently only supported by V_DrawStretchyFixedPatch. Ideally other drawing functions should also receive clipping rectangle support too.
