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Kart-Public/src/lua_hudlib.c

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// SONIC ROBO BLAST 2
//-----------------------------------------------------------------------------
// Copyright (C) 2014-2016 by John "JTE" Muniz.
// Copyright (C) 2014-2018 by Sonic Team Junior.
//
// This program is free software distributed under the
// terms of the GNU General Public License, version 2.
// See the 'LICENSE' file for more details.
//-----------------------------------------------------------------------------
/// \file lua_hudlib.c
/// \brief custom HUD rendering library for Lua scripting
#include "doomdef.h"
#ifdef HAVE_BLUA
#include "r_defs.h"
#include "r_local.h"
#include "st_stuff.h" // hudinfo[]
#include "g_game.h"
#include "i_video.h" // rendermode
#include "p_local.h" // camera_t
#include "screen.h" // screen width/height
#include "v_video.h"
#include "w_wad.h"
#include "z_zone.h"
#include "lua_script.h"
#include "lua_libs.h"
#include "lua_hud.h"
#define HUDONLY if (!hud_running) return luaL_error(L, "HUD rendering code should not be called outside of rendering hooks!");
boolean hud_running = false;
static UINT8 hud_enabled[(hud_MAX/8)+1];
static UINT8 hudAvailable; // hud hooks field
static UINT8 camnum = 1;
// must match enum hud in lua_hud.h
static const char *const hud_disable_options[] = {
"stagetitle",
"textspectator",
"time",
"gametypeinfo", // Bumpers / Karma / Laps depending on gametype
"minimap",
"item",
"position",
"check", // "CHECK" f-zero indicator
"minirankings", // Gametype rankings to the left
"battlerankingsbumpers", // bumper drawer for battle. Useful if you want to make a custom battle gamemode without bumpers being involved.
"battlefullscreen", // battlefullscreen func (WAIT, ATTACK OR PROTECT ...)
"battlecomebacktimer", // come back timer in battlefullscreen
"wanted",
"speedometer",
"freeplay",
"rankings",
NULL};
enum hudinfo {
hudinfo_x = 0,
hudinfo_y
};
static const char *const hudinfo_opt[] = {
"x",
"y",
NULL};
enum patch {
patch_valid = 0,
patch_width,
patch_height,
patch_leftoffset,
patch_topoffset
};
static const char *const patch_opt[] = {
"valid",
"width",
"height",
"leftoffset",
"topoffset",
NULL};
enum hudhook {
hudhook_game = 0,
hudhook_scores
};
static const char *const hudhook_opt[] = {
"game",
"scores",
NULL};
// alignment types for v.drawString
enum align {
align_left = 0,
align_center,
align_right,
align_fixed,
align_small,
align_smallright,
align_thin,
align_thinright
};
static const char *const align_opt[] = {
"left",
"center",
"right",
"fixed",
"small",
"small-right",
"thin",
"thin-right",
NULL};
// width types for v.stringWidth
enum widtht {
widtht_normal = 0,
widtht_small,
widtht_thin
};
static const char *const widtht_opt[] = {
"normal",
"small",
"thin",
NULL};
enum cameraf {
camera_chase = 0,
camera_aiming,
camera_x,
camera_y,
camera_z,
camera_angle,
camera_subsector,
camera_floorz,
camera_ceilingz,
camera_radius,
camera_height,
camera_momx,
camera_momy,
camera_momz,
camera_pnum
};
static const char *const camera_opt[] = {
"chase",
"aiming",
"x",
"y",
"z",
"angle",
"subsector",
"floorz",
"ceilingz",
"radius",
"height",
"momx",
"momy",
"momz",
"pnum",
NULL};
static int lib_getHudInfo(lua_State *L)
{
UINT32 i;
lua_remove(L, 1);
i = luaL_checkinteger(L, 1);
if (i >= NUMHUDITEMS)
return luaL_error(L, "hudinfo[] index %d out of range (0 - %d)", i, NUMHUDITEMS-1);
LUA_PushUserdata(L, &hudinfo[i], META_HUDINFO);
return 1;
}
static int lib_hudinfolen(lua_State *L)
{
lua_pushinteger(L, NUMHUDITEMS);
return 1;
}
static int hudinfo_get(lua_State *L)
{
hudinfo_t *info = *((hudinfo_t **)luaL_checkudata(L, 1, META_HUDINFO));
enum hudinfo field = luaL_checkoption(L, 2, hudinfo_opt[0], hudinfo_opt);
I_Assert(info != NULL); // huditems are always valid
switch(field)
{
case hudinfo_x:
lua_pushinteger(L, info->x);
break;
case hudinfo_y:
lua_pushinteger(L, info->y);
break;
}
return 1;
}
static int hudinfo_set(lua_State *L)
{
hudinfo_t *info = *((hudinfo_t **)luaL_checkudata(L, 1, META_HUDINFO));
enum hudinfo field = luaL_checkoption(L, 2, hudinfo_opt[0], hudinfo_opt);
I_Assert(info != NULL);
switch(field)
{
case hudinfo_x:
info->x = (INT32)luaL_checkinteger(L, 3);
break;
case hudinfo_y:
info->y = (INT32)luaL_checkinteger(L, 3);
break;
}
return 0;
}
static int hudinfo_num(lua_State *L)
{
hudinfo_t *info = *((hudinfo_t **)luaL_checkudata(L, 1, META_HUDINFO));
lua_pushinteger(L, info-hudinfo);
return 1;
}
static int colormap_get(lua_State *L)
{
return luaL_error(L, "colormap is not a struct.");
}
static int patch_get(lua_State *L)
{
patch_t *patch = *((patch_t **)luaL_checkudata(L, 1, META_PATCH));
enum patch field = luaL_checkoption(L, 2, NULL, patch_opt);
// patches are CURRENTLY always valid, expected to be cached with PU_STATIC
// this may change in the future, so patch.valid still exists
I_Assert(patch != NULL);
switch (field)
{
case patch_valid:
lua_pushboolean(L, patch != NULL);
break;
case patch_width:
lua_pushinteger(L, SHORT(patch->width));
break;
case patch_height:
lua_pushinteger(L, SHORT(patch->height));
break;
case patch_leftoffset:
lua_pushinteger(L, SHORT(patch->leftoffset));
break;
case patch_topoffset:
lua_pushinteger(L, SHORT(patch->topoffset));
break;
}
return 1;
}
static int patch_set(lua_State *L)
{
return luaL_error(L, LUA_QL("patch_t") " struct cannot be edited by Lua.");
}
static int camera_get(lua_State *L)
{
camera_t *cam = *((camera_t **)luaL_checkudata(L, 1, META_CAMERA));
enum cameraf field = luaL_checkoption(L, 2, NULL, camera_opt);
// cameras should always be valid unless I'm a nutter
I_Assert(cam != NULL);
switch (field)
{
case camera_chase:
lua_pushboolean(L, cam->chase);
break;
case camera_aiming:
lua_pushinteger(L, cam->aiming);
break;
case camera_x:
lua_pushinteger(L, cam->x);
break;
case camera_y:
lua_pushinteger(L, cam->y);
break;
case camera_z:
lua_pushinteger(L, cam->z);
break;
case camera_angle:
lua_pushinteger(L, cam->angle);
break;
case camera_subsector:
LUA_PushUserdata(L, cam->subsector, META_SUBSECTOR);
break;
case camera_floorz:
lua_pushinteger(L, cam->floorz);
break;
case camera_ceilingz:
lua_pushinteger(L, cam->ceilingz);
break;
case camera_radius:
lua_pushinteger(L, cam->radius);
break;
case camera_height:
lua_pushinteger(L, cam->height);
break;
case camera_momx:
lua_pushinteger(L, cam->momx);
break;
case camera_momy:
lua_pushinteger(L, cam->momy);
break;
case camera_momz:
lua_pushinteger(L, cam->momz);
break;
case camera_pnum:
lua_pushinteger(L, camnum);
break;
}
return 1;
}
//
// lib_draw
//
static int libd_patchExists(lua_State *L)
{
HUDONLY
lua_pushboolean(L, W_LumpExists(luaL_checkstring(L, 1)));
return 1;
}
static int libd_cachePatch(lua_State *L)
{
HUDONLY
LUA_PushUserdata(L, W_CachePatchName(luaL_checkstring(L, 1), PU_STATIC), META_PATCH);
return 1;
}
static int libd_draw(lua_State *L)
{
INT32 x, y, flags;
patch_t *patch;
const UINT8 *colormap = NULL;
HUDONLY
x = luaL_checkinteger(L, 1);
y = luaL_checkinteger(L, 2);
patch = *((patch_t **)luaL_checkudata(L, 3, META_PATCH));
flags = luaL_optinteger(L, 4, 0);
if (!lua_isnoneornil(L, 5))
colormap = *((UINT8 **)luaL_checkudata(L, 5, META_COLORMAP));
flags &= ~V_PARAMMASK; // Don't let crashes happen.
V_DrawFixedPatch(x<<FRACBITS, y<<FRACBITS, FRACUNIT, flags, patch, colormap);
return 0;
}
static int libd_drawScaled(lua_State *L)
{
fixed_t x, y, scale;
INT32 flags;
patch_t *patch;
const UINT8 *colormap = NULL;
HUDONLY
x = luaL_checkinteger(L, 1);
y = luaL_checkinteger(L, 2);
scale = luaL_checkinteger(L, 3);
if (scale < 0)
return luaL_error(L, "negative scale");
patch = *((patch_t **)luaL_checkudata(L, 4, META_PATCH));
flags = luaL_optinteger(L, 5, 0);
if (!lua_isnoneornil(L, 6))
colormap = *((UINT8 **)luaL_checkudata(L, 6, META_COLORMAP));
flags &= ~V_PARAMMASK; // Don't let crashes happen.
V_DrawFixedPatch(x, y, scale, flags, patch, colormap);
return 0;
}
// KART: draw patch on minimap from x, y coordinates on the map
static int libd_drawOnMinimap(lua_State *L)
{
fixed_t x, y, scale; // coordinates of the object
patch_t *patch; // patch we want to draw
const UINT8 *colormap = NULL; // do we want to colormap this patch?
boolean centered; // the patch is centered and doesn't need readjusting on x/y coordinates.
// variables used to replicate k_kart's mmap drawer:
INT32 lumpnum;
patch_t *AutomapPic;
INT32 mx, my;
INT32 splitflags, minimaptrans;
// base position of the minimap which also takes splits into account:
INT32 MM_X, MM_Y;
// variables used for actually drawing the icon:
fixed_t amnumxpos, amnumypos;
INT32 amxpos, amypos;
node_t *bsp = &nodes[numnodes-1];
fixed_t maxx, minx, maxy, miny;
fixed_t mapwidth, mapheight;
fixed_t xoffset, yoffset;
fixed_t xscale, yscale, zoom;
fixed_t patchw, patchh;
HUDONLY // only run this function in hud hooks
x = luaL_checkinteger(L, 1);
y = luaL_checkinteger(L, 2);
scale = luaL_checkinteger(L, 3);
patch = *((patch_t **)luaL_checkudata(L, 4, META_PATCH));
if (!lua_isnoneornil(L, 5))
colormap = *((UINT8 **)luaL_checkudata(L, 5, META_COLORMAP));
centered = lua_optboolean(L, 6);
// replicate exactly what source does for its minimap drawer; AKA hardcoded garbo.
// first, check what position the mmap is supposed to be in (pasted from k_kart.c):
MM_X = BASEVIDWIDTH - 50; // 270
MM_Y = (BASEVIDHEIGHT/2)-16; // 84
if (splitscreen)
{
MM_Y = (BASEVIDHEIGHT/2);
if (splitscreen > 1) // 3P : bottom right
{
MM_X = (3*BASEVIDWIDTH/4);
MM_Y = (3*BASEVIDHEIGHT/4);
if (splitscreen > 2) // 4P: centered
{
MM_X = (BASEVIDWIDTH/2);
MM_Y = (BASEVIDHEIGHT/2);
}
}
}
// splitscreen flags
splitflags = (splitscreen == 3 ? 0 : V_SNAPTORIGHT); // flags should only be 0 when it's centered (4p split)
// translucency:
if (timeinmap > 105)
{
minimaptrans = cv_kartminimap.value;
if (timeinmap <= 113)
minimaptrans = ((((INT32)timeinmap) - 105)*minimaptrans)/(113-105);
if (!minimaptrans)
return 0;
}
else
return 0;
minimaptrans = ((10-minimaptrans)<<FF_TRANSSHIFT);
splitflags |= minimaptrans;
if (!(splitscreen == 2))
{
splitflags &= ~minimaptrans;
splitflags |= V_HUDTRANSHALF;
}
splitflags &= ~V_HUDTRANSHALF;
splitflags |= V_HUDTRANS;
// Draw the HUD only when playing in a level.
// hu_stuff needs this, unlike st_stuff.
if (gamestate != GS_LEVEL)
return 0;
if (stplyr != &players[displayplayers[0]])
return 0;
lumpnum = W_CheckNumForName(va("%sR", G_BuildMapName(gamemap)));
if (lumpnum != -1)
AutomapPic = W_CachePatchName(va("%sR", G_BuildMapName(gamemap)), PU_HUDGFX);
else
return 0; // no pic, just get outta here
mx = MM_X - (AutomapPic->width/2);
my = MM_Y - (AutomapPic->height/2);
// let offsets transfer to the heads, too!
if (encoremode)
mx += SHORT(AutomapPic->leftoffset);
else
mx -= SHORT(AutomapPic->leftoffset);
my -= SHORT(AutomapPic->topoffset);
// now that we have replicated this behavior, we can draw an icon from our supplied x, y coordinates by replicating k_kart.c's totally understandable uncommented code!!!
// get map boundaries using nodes
maxx = maxy = INT32_MAX;
minx = miny = INT32_MIN;
minx = bsp->bbox[0][BOXLEFT];
maxx = bsp->bbox[0][BOXRIGHT];
miny = bsp->bbox[0][BOXBOTTOM];
maxy = bsp->bbox[0][BOXTOP];
if (bsp->bbox[1][BOXLEFT] < minx)
minx = bsp->bbox[1][BOXLEFT];
if (bsp->bbox[1][BOXRIGHT] > maxx)
maxx = bsp->bbox[1][BOXRIGHT];
if (bsp->bbox[1][BOXBOTTOM] < miny)
miny = bsp->bbox[1][BOXBOTTOM];
if (bsp->bbox[1][BOXTOP] > maxy)
maxy = bsp->bbox[1][BOXTOP];
// You might be wondering why these are being bitshift here
// it's because mapwidth and height would otherwise overflow for maps larger than half the size possible...
// map boundaries and sizes will ALWAYS be whole numbers thankfully
// later calculations take into consideration that these are actually not in terms of FRACUNIT though
minx >>= FRACBITS;
maxx >>= FRACBITS;
miny >>= FRACBITS;
maxy >>= FRACBITS;
// these are our final map boundaries:
mapwidth = maxx - minx;
mapheight = maxy - miny;
// These should always be small enough to be bitshift back right now
xoffset = (minx + mapwidth/2)<<FRACBITS;
yoffset = (miny + mapheight/2)<<FRACBITS;
xscale = FixedDiv(AutomapPic->width, mapwidth);
yscale = FixedDiv(AutomapPic->height, mapheight);
zoom = FixedMul(min(xscale, yscale), FRACUNIT-FRACUNIT/20);
amnumxpos = (FixedMul(x, zoom) - FixedMul(xoffset, zoom));
amnumypos = -(FixedMul(y, zoom) - FixedMul(yoffset, zoom));
if (encoremode)
amnumxpos = -amnumxpos;
// scale patch coords
patchw = patch->width*scale /2;
patchh = patch->height*scale /2;
if (centered)
patchw = patchh = 0; // patch is supposedly already centered, don't butt in.
amxpos = amnumxpos + ((mx + AutomapPic->width/2)<<FRACBITS) - patchw;
amypos = amnumypos + ((my + AutomapPic->height/2)<<FRACBITS) - patchh;
// and NOW we can FINALLY DRAW OUR GOD DAMN PATCH :V
V_DrawFixedPatch(amxpos, amypos, scale, splitflags, patch, colormap);
return 0;
}
static int libd_drawNum(lua_State *L)
{
INT32 x, y, flags, num;
HUDONLY
x = luaL_checkinteger(L, 1);
y = luaL_checkinteger(L, 2);
num = luaL_checkinteger(L, 3);
flags = luaL_optinteger(L, 4, 0);
flags &= ~V_PARAMMASK; // Don't let crashes happen.
V_DrawTallNum(x, y, flags, num);
return 0;
}
static int libd_drawPaddedNum(lua_State *L)
{
INT32 x, y, flags, num, digits;
HUDONLY
x = luaL_checkinteger(L, 1);
y = luaL_checkinteger(L, 2);
num = labs(luaL_checkinteger(L, 3));
digits = luaL_optinteger(L, 4, 2);
flags = luaL_optinteger(L, 5, 0);
flags &= ~V_PARAMMASK; // Don't let crashes happen.
V_DrawPaddedTallNum(x, y, flags, num, digits);
return 0;
}
static int libd_drawPingNum(lua_State *L)
{
INT32 x, y, flags, num;
const UINT8 *colormap = NULL;
HUDONLY
x = luaL_checkinteger(L, 1);
y = luaL_checkinteger(L, 2);
num = luaL_checkinteger(L, 3);
flags = luaL_optinteger(L, 4, 0);
flags &= ~V_PARAMMASK; // Don't let crashes happen.
if (!lua_isnoneornil(L, 5))
colormap = *((UINT8 **)luaL_checkudata(L, 5, META_COLORMAP));
V_DrawPingNum(x, y, flags, num, colormap);
return 0;
}
static int libd_drawFill(lua_State *L)
{
INT32 x = luaL_optinteger(L, 1, 0);
INT32 y = luaL_optinteger(L, 2, 0);
INT32 w = luaL_optinteger(L, 3, BASEVIDWIDTH);
INT32 h = luaL_optinteger(L, 4, BASEVIDHEIGHT);
INT32 c = luaL_optinteger(L, 5, 31);
HUDONLY
V_DrawFill(x, y, w, h, c);
return 0;
}
static int libd_fadeScreen(lua_State *L)
{
UINT16 color = luaL_checkinteger(L, 1);
UINT8 strength = luaL_checkinteger(L, 2);
const UINT8 maxstrength = ((color & 0xFF00) ? 32 : 10);
HUDONLY
if (!strength)
return 0;
if (strength > maxstrength)
return luaL_error(L, "%s fade strength %d out of range (0 - %d)", ((color & 0xFF00) ? "COLORMAP" : "TRANSMAP"), strength, maxstrength);
if (strength == maxstrength) // Allow as a shortcut for drawfill...
{
V_DrawFill(0, 0, BASEVIDWIDTH, BASEVIDHEIGHT, ((color & 0xFF00) ? 31 : color));
return 0;
}
V_DrawFadeScreen(color, strength);
return 0;
}
static int libd_drawString(lua_State *L)
{
fixed_t x = luaL_checkinteger(L, 1);
fixed_t y = luaL_checkinteger(L, 2);
const char *str = luaL_checkstring(L, 3);
INT32 flags = luaL_optinteger(L, 4, V_ALLOWLOWERCASE);
enum align align = luaL_checkoption(L, 5, "left", align_opt);
flags &= ~V_PARAMMASK; // Don't let crashes happen.
HUDONLY
switch(align)
{
// hu_font
case align_left:
V_DrawString(x, y, flags, str);
break;
case align_center:
V_DrawCenteredString(x, y, flags, str);
break;
case align_right:
V_DrawRightAlignedString(x, y, flags, str);
break;
case align_fixed:
V_DrawStringAtFixed(x, y, flags, str);
break;
// hu_font, 0.5x scale
case align_small:
V_DrawSmallString(x, y, flags, str);
break;
case align_smallright:
V_DrawRightAlignedSmallString(x, y, flags, str);
break;
// tny_font
case align_thin:
V_DrawThinString(x, y, flags, str);
break;
case align_thinright:
V_DrawRightAlignedThinString(x, y, flags, str);
break;
}
return 0;
}
static int libd_drawKartString(lua_State *L)
{
fixed_t x = luaL_checkinteger(L, 1);
fixed_t y = luaL_checkinteger(L, 2);
const char *str = luaL_checkstring(L, 3);
INT32 flags = luaL_optinteger(L, 4, V_ALLOWLOWERCASE);
flags &= ~V_PARAMMASK; // Don't let crashes happen.
HUDONLY
V_DrawKartString(x, y, flags, str);
return 0;
}
static int libd_stringWidth(lua_State *L)
{
const char *str = luaL_checkstring(L, 1);
INT32 flags = luaL_optinteger(L, 2, V_ALLOWLOWERCASE);
enum widtht widtht = luaL_checkoption(L, 3, "normal", widtht_opt);
HUDONLY
switch(widtht)
{
case widtht_normal: // hu_font
lua_pushinteger(L, V_StringWidth(str, flags));
break;
case widtht_small: // hu_font, 0.5x scale
lua_pushinteger(L, V_SmallStringWidth(str, flags));
break;
case widtht_thin: // tny_font
lua_pushinteger(L, V_ThinStringWidth(str, flags));
break;
}
return 1;
}
static int libd_getColormap(lua_State *L)
{
INT32 skinnum = TC_DEFAULT;
skincolors_t color = luaL_optinteger(L, 2, 0);
UINT8* colormap = NULL;
HUDONLY
if (lua_isnoneornil(L, 1))
; // defaults to TC_DEFAULT
else if (lua_type(L, 1) == LUA_TNUMBER) // skin number
{
skinnum = (INT32)luaL_checkinteger(L, 1);
if (skinnum < TC_BLINK || skinnum >= MAXSKINS)
return luaL_error(L, "skin number %d is out of range (%d - %d)", skinnum, TC_BLINK, MAXSKINS-1);
}
else // skin name
{
const char *skinname = luaL_checkstring(L, 1);
INT32 i = R_SkinAvailable(skinname);
if (i != -1) // if -1, just default to TC_DEFAULT as above
skinnum = i;
}
// all was successful above, now we generate the colormap at last!
colormap = R_GetTranslationColormap(skinnum, color, GTC_CACHE);
LUA_PushUserdata(L, colormap, META_COLORMAP); // push as META_COLORMAP userdata, specifically for patches to use!
return 1;
}
static int libd_width(lua_State *L)
{
HUDONLY
lua_pushinteger(L, vid.width); // push screen width
return 1;
}
static int libd_height(lua_State *L)
{
HUDONLY
lua_pushinteger(L, vid.height); // push screen height
return 1;
}
static int libd_dupx(lua_State *L)
{
HUDONLY
lua_pushinteger(L, vid.dupx); // push integral scale (patch scale)
lua_pushfixed(L, vid.fdupx); // push fixed point scale (position scale)
return 2;
}
static int libd_dupy(lua_State *L)
{
HUDONLY
lua_pushinteger(L, vid.dupy); // push integral scale (patch scale)
lua_pushfixed(L, vid.fdupy); // push fixed point scale (position scale)
return 2;
}
static int libd_renderer(lua_State *L)
{
HUDONLY
switch (rendermode) {
case render_opengl: lua_pushliteral(L, "opengl"); break; // OpenGL renderer
case render_soft: lua_pushliteral(L, "software"); break; // Software renderer
default: lua_pushliteral(L, "none"); break; // render_none (for dedicated), in case there's any reason this should be run
}
return 1;
}
// 30/10/18 Lat': Get cv_translucenthud's value for HUD rendering as a normal V_xxTRANS int
// Could as well be thrown in global vars for ease of access but I guess it makes sense for it to be a HUD fn
static int libd_getlocaltransflag(lua_State *L)
{
HUDONLY
lua_pushinteger(L, (10-cv_translucenthud.value)*V_10TRANS); // A bit weird that it's called "translucenthud" yet 10 is fully opaque :V
return 1;
}
static luaL_Reg lib_draw[] = {
{"patchExists", libd_patchExists},
{"cachePatch", libd_cachePatch},
{"draw", libd_draw},
{"drawScaled", libd_drawScaled},
{"drawNum", libd_drawNum},
{"drawPaddedNum", libd_drawPaddedNum},
{"drawPingNum", libd_drawPingNum},
{"drawFill", libd_drawFill},
{"fadeScreen", libd_fadeScreen},
{"drawString", libd_drawString},
{"drawKartString", libd_drawKartString},
{"stringWidth", libd_stringWidth},
{"getColormap", libd_getColormap},
{"width", libd_width},
{"height", libd_height},
{"dupx", libd_dupx},
{"dupy", libd_dupy},
{"renderer", libd_renderer},
{"localTransFlag", libd_getlocaltransflag},
{"drawOnMinimap", libd_drawOnMinimap},
{NULL, NULL}
};
//
// lib_hud
//
// enable vanilla HUD element
static int lib_hudenable(lua_State *L)
{
enum hud option = luaL_checkoption(L, 1, NULL, hud_disable_options);
hud_enabled[option/8] |= 1<<(option%8);
return 0;
}
// disable vanilla HUD element
static int lib_huddisable(lua_State *L)
{
enum hud option = luaL_checkoption(L, 1, NULL, hud_disable_options);
hud_enabled[option/8] &= ~(1<<(option%8));
return 0;
}
// 30/10/18: Lat': How come this wasn't here before?
static int lib_hudenabled(lua_State *L)
{
enum hud option = luaL_checkoption(L, 1, NULL, hud_disable_options);
if (hud_enabled[option/8] & (1<<(option%8)))
lua_pushboolean(L, true);
else
lua_pushboolean(L, false);
return 1;
}
// add a HUD element for rendering
static int lib_hudadd(lua_State *L)
{
enum hudhook field;
luaL_checktype(L, 1, LUA_TFUNCTION);
field = luaL_checkoption(L, 2, "game", hudhook_opt);
lua_getfield(L, LUA_REGISTRYINDEX, "HUD");
I_Assert(lua_istable(L, -1));
lua_rawgeti(L, -1, field+2); // HUD[2+]
I_Assert(lua_istable(L, -1));
lua_remove(L, -2);
lua_pushvalue(L, 1);
lua_rawseti(L, -2, (int)(lua_objlen(L, -2) + 1));
hudAvailable |= 1<<field;
return 0;
}
static luaL_Reg lib_hud[] = {
{"enable", lib_hudenable},
{"disable", lib_huddisable},
{"enabled", lib_hudenabled},
{"add", lib_hudadd},
{NULL, NULL}
};
//
//
//
int LUA_HudLib(lua_State *L)
{
memset(hud_enabled, 0xff, (hud_MAX/8)+1);
lua_newtable(L); // HUD registry table
lua_newtable(L);
luaL_register(L, NULL, lib_draw);
lua_rawseti(L, -2, 1); // HUD[1] = lib_draw
lua_newtable(L);
lua_rawseti(L, -2, 2); // HUD[2] = game rendering functions array
lua_newtable(L);
lua_rawseti(L, -2, 3); // HUD[2] = scores rendering functions array
lua_setfield(L, LUA_REGISTRYINDEX, "HUD");
luaL_newmetatable(L, META_HUDINFO);
lua_pushcfunction(L, hudinfo_get);
lua_setfield(L, -2, "__index");
lua_pushcfunction(L, hudinfo_set);
lua_setfield(L, -2, "__newindex");
lua_pushcfunction(L, hudinfo_num);
lua_setfield(L, -2, "__len");
lua_pop(L,1);
lua_newuserdata(L, 0);
lua_createtable(L, 0, 2);
lua_pushcfunction(L, lib_getHudInfo);
lua_setfield(L, -2, "__index");
lua_pushcfunction(L, lib_hudinfolen);
lua_setfield(L, -2, "__len");
lua_setmetatable(L, -2);
lua_setglobal(L, "hudinfo");
luaL_newmetatable(L, META_COLORMAP);
lua_pushcfunction(L, colormap_get);
lua_setfield(L, -2, "__index");
lua_pop(L,1);
luaL_newmetatable(L, META_PATCH);
lua_pushcfunction(L, patch_get);
lua_setfield(L, -2, "__index");
lua_pushcfunction(L, patch_set);
lua_setfield(L, -2, "__newindex");
lua_pop(L,1);
luaL_newmetatable(L, META_CAMERA);
lua_pushcfunction(L, camera_get);
lua_setfield(L, -2, "__index");
lua_pop(L,1);
luaL_register(L, "hud", lib_hud);
return 0;
}
boolean LUA_HudEnabled(enum hud option)
{
if (!gL || hud_enabled[option/8] & (1<<(option%8)))
return true;
return false;
}
// Hook for HUD rendering
void LUAh_GameHUD(player_t *stplayr)
{
if (!gL || !(hudAvailable & (1<<hudhook_game)))
return;
hud_running = true;
lua_pop(gL, -1);
lua_getfield(gL, LUA_REGISTRYINDEX, "HUD");
I_Assert(lua_istable(gL, -1));
lua_rawgeti(gL, -1, 2); // HUD[2] = rendering funcs
I_Assert(lua_istable(gL, -1));
lua_rawgeti(gL, -2, 1); // HUD[1] = lib_draw
I_Assert(lua_istable(gL, -1));
lua_remove(gL, -3); // pop HUD
LUA_PushUserdata(gL, stplayr, META_PLAYER);
if (splitscreen > 2 && stplayr == &players[displayplayers[3]])
{
LUA_PushUserdata(gL, &camera[3], META_CAMERA);
camnum = 4;
}
else if (splitscreen > 1 && stplayr == &players[displayplayers[2]])
{
LUA_PushUserdata(gL, &camera[2], META_CAMERA);
camnum = 3;
}
else if (splitscreen && stplayr == &players[displayplayers[1]])
{
LUA_PushUserdata(gL, &camera[1], META_CAMERA);
camnum = 2;
}
else
{
LUA_PushUserdata(gL, &camera[0], META_CAMERA);
camnum = 1;
}
lua_pushnil(gL);
while (lua_next(gL, -5) != 0) {
lua_pushvalue(gL, -5); // graphics library (HUD[1])
lua_pushvalue(gL, -5); // stplayr
lua_pushvalue(gL, -5); // camera
LUA_Call(gL, 3);
}
lua_pop(gL, -1);
hud_running = false;
}
void LUAh_ScoresHUD(void)
{
if (!gL || !(hudAvailable & (1<<hudhook_scores)))
return;
hud_running = true;
lua_pop(gL, -1);
lua_getfield(gL, LUA_REGISTRYINDEX, "HUD");
I_Assert(lua_istable(gL, -1));
lua_rawgeti(gL, -1, 3); // HUD[3] = rendering funcs
I_Assert(lua_istable(gL, -1));
lua_rawgeti(gL, -2, 1); // HUD[1] = lib_draw
I_Assert(lua_istable(gL, -1));
lua_remove(gL, -3); // pop HUD
lua_pushnil(gL);
while (lua_next(gL, -3) != 0) {
lua_pushvalue(gL, -3); // graphics library (HUD[1])
LUA_Call(gL, 1);
}
lua_pop(gL, -1);
hud_running = false;
}
#endif
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