mirror of https://github.com/ZDoom/raze-gles.git
102 lines
2.2 KiB
Lua
102 lines
2.2 KiB
Lua
-- Bound-checking functions for engine and game "things".
|
|
|
|
local ffiC = require("ffi").C
|
|
local error = error
|
|
|
|
local con_lang = require("con_lang")
|
|
|
|
local bcheck = {}
|
|
|
|
--== ENGINE ==--
|
|
|
|
function bcheck.sector_idx(sectnum)
|
|
if (sectnum >= ffiC.numsectors+0ULL) then
|
|
error("invalid sector number "..sectnum, 3)
|
|
end
|
|
end
|
|
|
|
function bcheck.wall_idx(wallnum)
|
|
if (wallnum >= ffiC.numwalls+0ULL) then
|
|
error("invalid wall number "..wallnum, 3)
|
|
end
|
|
end
|
|
|
|
-- TODO: Provide another function that also checks whether the sprite exists in
|
|
-- the game world (statnum != MAXSTATUS).
|
|
function bcheck.sprite_idx(spritenum)
|
|
if (spritenum >= ffiC.MAXSPRITES+0ULL) then
|
|
error("invalid sprite number "..spritenum, 3)
|
|
end
|
|
end
|
|
|
|
function bcheck.tile_idx(tilenum)
|
|
if (tilenum >= ffiC.MAXTILES+0ULL) then
|
|
error("invalid tile number "..tilenum, 3)
|
|
end
|
|
end
|
|
|
|
|
|
--== GAME ==--
|
|
|
|
function bcheck.player_idx(snum)
|
|
if (snum >= ffiC.playerswhenstarted+0ULL) then
|
|
error("invalid player number "..snum, 3)
|
|
end
|
|
end
|
|
|
|
function bcheck.sound_idx(sndidx)
|
|
if (sndidx >= con_lang.MAXSOUNDS+0ULL) then
|
|
error("invalid sound number "..sndidx, 3)
|
|
end
|
|
end
|
|
|
|
function bcheck.weapon_idx(weap)
|
|
if (weap >= ffiC.MAX_WEAPONS+0ULL) then
|
|
error("Invalid weapon ID "..weap, 3)
|
|
end
|
|
end
|
|
|
|
function bcheck.inventory_idx(inv)
|
|
if (inv >= ffiC.GET_MAX+0ULL) then
|
|
error("Invalid inventory ID "..inv, 3)
|
|
end
|
|
end
|
|
|
|
function bcheck.volume_idx(volume)
|
|
if (volume >= con_lang.MAXVOLUMES+0ULL) then
|
|
error("invalid volume number "..volume)
|
|
end
|
|
end
|
|
|
|
function bcheck.level_idx(level)
|
|
if (level >= con_lang.MAXLEVELS+0ULL) then
|
|
error("invalid level number "..level)
|
|
end
|
|
end
|
|
|
|
function bcheck.quote_idx(qnum, onlyidx)
|
|
if (qnum >= con_lang.MAXQUOTES+0ULL) then
|
|
error("invalid quote number "..qnum, 3)
|
|
end
|
|
|
|
local cstr = ffiC.ScriptQuotes[qnum]
|
|
if (onlyidx) then
|
|
return cstr
|
|
end
|
|
|
|
if (cstr == nil) then
|
|
error("null quote "..qnum, 3)
|
|
end
|
|
|
|
return cstr
|
|
end
|
|
|
|
function bcheck.top_level(funcname)
|
|
if (ffiC.g_elCallDepth > 0) then
|
|
error("Invalid use of "..funcname..": must be called from top level", 3)
|
|
end
|
|
end
|
|
|
|
|
|
return bcheck
|