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Allow access to skin.sprites[]

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Only numframes so far though, as there's already a function for what spriteframe provides.
This commit is contained in:
Steel Titanium 2020-11-07 23:53:46 -05:00
parent 9b151ca45c
commit 1320f10839
3 changed files with 66 additions and 1 deletions
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2
src/lua_baselib.c
View file

@ -162,6 +162,8 @@ static const struct {
{META_SKIN, "skin_t"},
{META_POWERS, "player_t.powers"},
{META_SOUNDSID, "skin_t.soundsid"},
{META_SKINSPRITES, "skin_t.sprites"},
{META_SKINSPRITESLIST, "skin_t.sprites[]"},
{META_VERTEX, "vertex_t"},
{META_LINE, "line_t"},

2
src/lua_libs.h
View file

@ -34,6 +34,8 @@ extern lua_State *gL;
#define META_SKIN "SKIN_T*"
#define META_POWERS "PLAYER_T*POWERS"
#define META_SOUNDSID "SKIN_T*SOUNDSID"
#define META_SKINSPRITES "SKIN_T*SPRITES"
#define META_SKINSPRITESLIST "SKIN_T*SPRITES[]"
#define META_VERTEX "VERTEX_T*"
#define META_LINE "LINE_T*"

63
src/lua_skinlib.c
View file

@ -54,7 +54,8 @@ enum skin {
skin_contspeed,
skin_contangle,
skin_soundsid,
skin_availability
skin_availability,
skin_sprites
};
static const char *const skin_opt[] = {
"valid",
@ -93,6 +94,7 @@ static const char *const skin_opt[] = {
"contangle",
"soundsid",
"availability",
"sprites",
NULL};
#define UNIMPLEMENTED luaL_error(L, LUA_QL("skin_t") " field " LUA_QS " is not implemented for Lua and cannot be accessed.", skin_opt[field])
@ -214,6 +216,9 @@ static int skin_get(lua_State *L)
case skin_availability:
lua_pushinteger(L, skin->availability);
break;
case skin_sprites:
LUA_PushUserdata(L, skin->sprites, META_SKINSPRITES);
break;
}
return 1;
}
@ -324,6 +329,49 @@ static int soundsid_num(lua_State *L)
return 1;
}
enum spritesopt {
numframes = 0
};
static const char *const sprites_opt[] = {
"numframes",
NULL};
// skin.sprites[i] -> sprites[i]
static int lib_getSkinSprite(lua_State *L)
{
spritedef_t *sprites = *((spritedef_t **)luaL_checkudata(L, 1, META_SKINSPRITES));
playersprite_t i = luaL_checkinteger(L, 2);
if (i < 0 || i >= NUMPLAYERSPRITES*2)
return luaL_error(L, "skin.sprites[] index %d out of range (0 - %d)", i, (NUMPLAYERSPRITES*2)-1);
LUA_PushLightUserdata(L, &sprites[i], META_SKINSPRITESLIST);
return 1;
}
// #skin.sprites -> NUMPLAYERSPRITES*2
static int lib_numSkinsSprites(lua_State *L)
{
lua_pushinteger(L, NUMPLAYERSPRITES*2);
return 1;
}
static int sprite_get(lua_State *L)
{
spritedef_t *sprite = (spritedef_t *)luaL_checkudata(L, 1, META_SKINSPRITESLIST);
enum spritesopt field = luaL_checkoption(L, 2, NULL, sprites_opt);
switch (field)
{
case numframes:
lua_pushinteger(L, sprite->numframes);
break;
}
return 1;
}
int LUA_SkinLib(lua_State *L)
{
luaL_newmetatable(L, META_SKIN);
@ -345,6 +393,19 @@ int LUA_SkinLib(lua_State *L)
lua_setfield(L, -2, "__len");
lua_pop(L,1);
luaL_newmetatable(L, META_SKINSPRITES);
lua_pushcfunction(L, lib_getSkinSprite);
lua_setfield(L, -2, "__index");
lua_pushcfunction(L, lib_numSkinsSprites);
lua_setfield(L, -2, "__len");
lua_pop(L,1);
luaL_newmetatable(L, META_SKINSPRITESLIST);
lua_pushcfunction(L, sprite_get);
lua_setfield(L, -2, "__index");
lua_pop(L,1);
lua_newuserdata(L, 0);
lua_createtable(L, 0, 2);
lua_pushcfunction(L, lib_getSkin);