Cube  Diff

// editing.cpp: most map editing commands go here, entity editing commands are
// in world.cpp

#include "cube.h"

bool editmode = false;

// the current selection, used by almost all editing commands
// invariant: all code assumes that these are kept inside MINBORD distance of
// the edge of the map

block sel = {

    variable("selx", 0, 0, 4096, &sel.x, NULL, false),
    variable("sely", 0, 0, 4096, &sel.y, NULL, false),
    variable("selxs", 0, 0, 4096, &sel.xs, NULL, false),
    variable("selys", 0, 0, 4096, &sel.ys, NULL, false),
};

int selh = 0;
bool selset = false;

#define loopselxy(b)                                                           \
	{                                                                      \
		makeundo();                                                    \
		loop(x, sel.xs) loop(y, sel.ys)                                \
		{                                                              \
			sqr *s = S(sel.x + x, sel.y + y);                      \
			b;                                                     \
		};                                                             \
		remip(sel);                                                    \
	}

int cx, cy, ch;

int curedittex[] = {-1, -1, -1};

bool dragging = false;
int lastx, lasty, lasth;

int lasttype = 0, lasttex = 0;
sqr rtex;

VAR(editing, 0, 0, 1);

void
toggleedit()
{
	if (player1->state == CS_DEAD)
		return; // do not allow dead players to edit to avoid state
		        // confusion
	if (!editmode && !allowedittoggle())
		return; // not in most multiplayer modes
	if (!(editmode = !editmode)) {

		settagareas();     // reset triggers to allow quick playtesting
		entinmap(player1); // find spawn closest to current floating pos

	} else {

		resettagareas(); // clear trigger areas to allow them to be
		                 // edited
		player1->health = 100;
		if (m_classicsp)
			monsterclear(); // all monsters back at their spawns for
			                // editing
		projreset();
	};
	keyrepeat(editmode);
	selset = false;
	editing = editmode;
};

COMMANDN(edittoggle, toggleedit, ARG_NONE);

void
correctsel() // ensures above invariant
{
	selset = !OUTBORD(sel.x, sel.y);
	int bsize = ssize - MINBORD;
	if (sel.xs + sel.x > bsize)
		sel.xs = bsize - sel.x;
	if (sel.ys + sel.y > bsize)
		sel.ys = bsize - sel.y;
	if (sel.xs <= 0 || sel.ys <= 0)
		selset = false;
};

bool
noteditmode()
{
	correctsel();
	if (!editmode)
		conoutf("this function is only allowed in edit mode");
	return !editmode;
};

bool
noselection()
{
	if (!selset)
		conoutf("no selection");
	return !selset;
};

#define EDITSEL                                                                \
	if (noteditmode() || noselection())                                    \
		return;
#define EDITSELMP                                                              \
	if (noteditmode() || noselection() || multiplayer())                   \
		return;
#define EDITMP                                                                 \
	if (noteditmode() || multiplayer())                                    \
		return;

void
selectpos(int x, int y, int xs, int ys)
{
	block s = {x, y, xs, ys};
	sel = s;
	selh = 0;
	correctsel();
};

void
makesel()
{
	block s = {min(lastx, cx), min(lasty, cy), abs(lastx - cx) + 1,
	    abs(lasty - cy) + 1};
	sel = s;
	selh = max(lasth, ch);
	correctsel();
	if (selset)
		rtex = *S(sel.x, sel.y);
};

VAR(flrceil, 0, 0, 2);

float
sheight(
    sqr *s, sqr *t, float z) // finds out z height when cursor points at wall
{
	return !flrceil // z-s->floor<s->ceil-z
	           ? (s->type == FHF ? s->floor - t->vdelta / 4.0f
	                             : (float)s->floor)
	           : (s->type == CHF ? s->ceil + t->vdelta / 4.0f
	                             : (float)s->ceil);
};

void
cursorupdate() // called every frame from hud
{
	flrceil = ((int)(player1->pitch >= 0)) * 2;

	volatile float x =
	    worldpos.x; // volatile needed to prevent msvc7 optimizer bug?
	volatile float y = worldpos.y;
	volatile float z = worldpos.z;

	cx = (int)x;
	cy = (int)y;

	if (OUTBORD(cx, cy))
		return;
	sqr *s = S(cx, cy);

	if (fabs(sheight(s, s, z) - z) > 1) // selected wall
	{
		x += x > player1->o.x ? 0.5f : -0.5f; // find right wall cube
		y += y > player1->o.y ? 0.5f : -0.5f;

		cx = (int)x;
		cy = (int)y;

		if (OUTBORD(cx, cy))
			return;
	};

	if (dragging)
		makesel();

	const int GRIDSIZE = 5;
	const float GRIDW = 0.5f;
	const float GRID8 = 2.0f;
	const float GRIDS = 2.0f;
	const int GRIDM = 0x7;

	// render editing grid

	for (int ix = cx - GRIDSIZE; ix <= cx + GRIDSIZE; ix++)

		for (int iy = cy - GRIDSIZE; iy <= cy + GRIDSIZE; iy++) {
			if (OUTBORD(ix, iy))
				continue;
			sqr *s = S(ix, iy);
			if (SOLID(s))
				continue;
			float h1 = sheight(s, s, z);
			float h2 = sheight(s, SWS(s, 1, 0, ssize), z);
			float h3 = sheight(s, SWS(s, 1, 1, ssize), z);
			float h4 = sheight(s, SWS(s, 0, 1, ssize), z);
			if (s->tag)
				linestyle(GRIDW, 0xFF, 0x40, 0x40);
			else if (s->type == FHF || s->type == CHF)
				linestyle(GRIDW, 0x80, 0xFF, 0x80);
			else
				linestyle(GRIDW, 0x80, 0x80, 0x80);
			block b = {ix, iy, 1, 1};
			box(b, h1, h2, h3, h4);
			linestyle(GRID8, 0x40, 0x40, 0xFF);
			if (!(ix & GRIDM))
				line(ix, iy, h1, ix, iy + 1, h4);
			if (!(ix + 1 & GRIDM))
				line(ix + 1, iy, h2, ix + 1, iy + 1, h3);
			if (!(iy & GRIDM))
				line(ix, iy, h1, ix + 1, iy, h2);
			if (!(iy + 1 & GRIDM))
				line(ix, iy + 1, h4, ix + 1, iy + 1, h3);
		};

	if (!SOLID(s)) {

		float ih = sheight(s, s, z);
		linestyle(GRIDS, 0xFF, 0xFF, 0xFF);
		block b = {cx, cy, 1, 1};
		box(b, ih, sheight(s, SWS(s, 1, 0, ssize), z),
		    sheight(s, SWS(s, 1, 1, ssize), z),
		    sheight(s, SWS(s, 0, 1, ssize), z));
		linestyle(GRIDS, 0xFF, 0x00, 0x00);
		dot(cx, cy, ih);
		ch = (int)ih;
	};

	if (selset) {

		linestyle(GRIDS, 0xFF, 0x40, 0x40);
		box(sel, (float)selh, (float)selh, (float)selh, (float)selh);
	};
};

vector<block *> undos;    // unlimited undo
VARP(undomegs, 0, 1, 10); // bounded by n megs

void
pruneundos(int maxremain) // bound memory
{
	int t = 0;
	loopvrev(undos)
	{
		t += undos[i]->xs * undos[i]->ys * sizeof(sqr);
		if (t > maxremain)
			free(undos.remove(i));
	};
};

void
makeundo()
{
	undos.add(blockcopy(sel));
	pruneundos(undomegs << 20);
};

void
editundo()
{
	EDITMP;
	if (undos.empty()) {
		conoutf("nothing more to undo");
		return;
	};
	block *p = undos.pop();
	blockpaste(*p);
	free(p);
};

block *copybuf = NULL;

void
copy()
{
	EDITSELMP;
	if (copybuf)
		free(copybuf);
	copybuf = blockcopy(sel);
};

void
paste()
{
	EDITMP;
	if (!copybuf) {
		conoutf("nothing to paste");
		return;
	};
	sel.xs = copybuf->xs;
	sel.ys = copybuf->ys;
	correctsel();
	if (!selset || sel.xs != copybuf->xs || sel.ys != copybuf->ys) {
		conoutf("incorrect selection");
		return;
	};
	makeundo();
	copybuf->x = sel.x;
	copybuf->y = sel.y;
	blockpaste(*copybuf);
};

void
tofronttex() // maintain most recently used of the texture lists when applying
             // texture
{
	loopi(3)
	{
		int c = curedittex[i];
		if (c >= 0) {

			uchar *p = hdr.texlists[i];
			int t = p[c];
			for (int a = c - 1; a >= 0; a--)
				p[a + 1] = p[a];
			p[0] = t;
			curedittex[i] = -1;
		};
	};
};

void
editdrag(bool isdown)
{
	if (dragging = isdown) {

		lastx = cx;
		lasty = cy;
		lasth = ch;
		selset = false;
		tofronttex();
	};
	makesel();
};

// the core editing function. all the *xy functions perform the core operations
// and are also called directly from the network, the function below it is
// strictly triggered locally. They all have very similar structure.

void
editheightxy(bool isfloor, int amount, block &sel)
{
	loopselxy(

	    if (isfloor) {
		    s->floor += amount;
		    if (s->floor >= s->ceil)
			    s->floor = s->ceil - 1;

	    } else {

		    s->ceil += amount;
		    if (s->ceil <= s->floor)
			    s->ceil = s->floor + 1;
	    });
};

void
editheight(int flr, int amount)
{
	EDITSEL;
	bool isfloor = flr == 0;
	editheightxy(isfloor, amount, sel);
	addmsg(1, 7, SV_EDITH, sel.x, sel.y, sel.xs, sel.ys, isfloor, amount);
};

COMMAND(editheight, ARG_2INT);

void
edittexxy(int type, int t, block &sel)
{
	loopselxy(switch (type) {

	        case 0:
		        s->ftex = t;
		        break;
	        case 1:
		        s->wtex = t;
		        break;
	        case 2:
		        s->ctex = t;
		        break;
	        case 3:
		        s->utex = t;
		        break;
	});
};

void
edittex(int type, int dir)
{
	EDITSEL;
	if (type < 0 || type > 3)
		return;
	if (type != lasttype) {
		tofronttex();
		lasttype = type;
	};
	int atype = type == 3 ? 1 : type;
	int i = curedittex[atype];
	i = i < 0 ? 0 : i + dir;
	curedittex[atype] = i = min(max(i, 0), 255);
	int t = lasttex = hdr.texlists[atype][i];
	edittexxy(type, t, sel);
	addmsg(1, 7, SV_EDITT, sel.x, sel.y, sel.xs, sel.ys, type, t);
};

void
replace()
{
	EDITSELMP;
	loop(x, ssize) loop(y, ssize)
	{
		sqr *s = S(x, y);
		switch (lasttype) {

		case 0:
			if (s->ftex == rtex.ftex)
				s->ftex = lasttex;
			break;
		case 1:
			if (s->wtex == rtex.wtex)
				s->wtex = lasttex;
			break;
		case 2:
			if (s->ctex == rtex.ctex)
				s->ctex = lasttex;
			break;
		case 3:
			if (s->utex == rtex.utex)
				s->utex = lasttex;
			break;
		};
	};
	block b = {0, 0, ssize, ssize};
	remip(b);
};

void
edittypexy(int type, block &sel)
{


	loopselxy(s->type = type);
};

void
edittype(int type)
{
	EDITSEL;
	if (type == CORNER &&
	    (sel.xs != sel.ys || sel.xs == 3 || sel.xs > 4 && sel.xs != 8 ||
	        sel.x & ~-sel.xs || sel.y & ~-sel.ys)) {
		conoutf("corner selection must be power of 2 aligned");
		return;
	};
	edittypexy(type, sel);
	addmsg(1, 6, SV_EDITS, sel.x, sel.y, sel.xs, sel.ys, type);
};

void
heightfield(int t)
{
	edittype(t == 0 ? FHF : CHF);
};
void
solid(int t)
{
	edittype(t == 0 ? SPACE : SOLID);
};
void
corner()
{
	edittype(CORNER);
};

COMMAND(heightfield, ARG_1INT);
COMMAND(solid, ARG_1INT);
COMMAND(corner, ARG_NONE);

void
editequalisexy(bool isfloor, block &sel)
{
	int low = 127, hi = -128;
	loopselxy({

		if (s->floor < low)
			low = s->floor;
		if (s->ceil > hi)
			hi = s->ceil;
	});
	loopselxy({

		if (isfloor)
			s->floor = low;
		else
			s->ceil = hi;
		if (s->floor >= s->ceil)
			s->floor = s->ceil - 1;
	});
};

void
equalize(int flr)
{
	bool isfloor = flr == 0;
	EDITSEL;
	editequalisexy(isfloor, sel);
	addmsg(1, 6, SV_EDITE, sel.x, sel.y, sel.xs, sel.ys, isfloor);
};

COMMAND(equalize, ARG_1INT);

void
setvdeltaxy(int delta, block &sel)
{
	loopselxy(s->vdelta = max(s->vdelta + delta, 0));
	remipmore(sel);
};

void
setvdelta(int delta)
{
	EDITSEL;
	setvdeltaxy(delta, sel);
	addmsg(1, 6, SV_EDITD, sel.x, sel.y, sel.xs, sel.ys, delta);
};

const int MAXARCHVERT = 50;
int archverts[MAXARCHVERT][MAXARCHVERT];
bool archvinit = false;

void
archvertex(int span, int vert, int delta)
{
	if (!archvinit) {

		archvinit = true;
		loop(s, MAXARCHVERT) loop(v, MAXARCHVERT) archverts[s][v] = 0;
	};
	if (span >= MAXARCHVERT || vert >= MAXARCHVERT || span < 0 || vert < 0)
		return;
	archverts[span][vert] = delta;
};

void
arch(int sidedelta, int _a)
{
	EDITSELMP;
	sel.xs++;
	sel.ys++;
	if (sel.xs > MAXARCHVERT)
		sel.xs = MAXARCHVERT;
	if (sel.ys > MAXARCHVERT)
		sel.ys = MAXARCHVERT;
	loopselxy(
	    s->vdelta = sel.xs > sel.ys
	                    ? (archverts[sel.xs - 1][x] +
	                          (y == 0 || y == sel.ys - 1 ? sidedelta : 0))
	                    : (archverts[sel.ys - 1][y] +
	                          (x == 0 || x == sel.xs - 1 ? sidedelta : 0)));
	remipmore(sel);
};

void
slope(int xd, int yd)
{
	EDITSELMP;
	int off = 0;
	if (xd < 0)
		off -= xd * sel.xs;
	if (yd < 0)
		off -= yd * sel.ys;
	sel.xs++;
	sel.ys++;
	loopselxy(s->vdelta = xd * x + yd * y + off);
	remipmore(sel);
};

void
perlin(int scale, int seed, int psize)
{
	EDITSELMP;
	sel.xs++;
	sel.ys++;
	makeundo();
	sel.xs--;
	sel.ys--;
	perlinarea(sel, scale, seed, psize);
	sel.xs++;
	sel.ys++;
	remipmore(sel);
	sel.xs--;
	sel.ys--;
};

VARF(
    fullbright, 0, 0, 1, if (fullbright) {

	    if (noteditmode())
		    return;
	    loopi(mipsize) world[i].r = world[i].g = world[i].b = 176;
    };);


void
edittag(int tag)
{
	EDITSELMP;
	loopselxy(s->tag = tag);
};

void
newent(char *what, char *a1, char *a2, char *a3, char *a4)
{
	EDITSEL;
	newentity(sel.x, sel.y, (int)player1->o.z, what, ATOI(a1), ATOI(a2),
	    ATOI(a3), ATOI(a4));
};

COMMANDN(select, selectpos, ARG_4INT);
COMMAND(edittag, ARG_1INT);
COMMAND(replace, ARG_NONE);
COMMAND(archvertex, ARG_3INT);
COMMAND(arch, ARG_2INT);
COMMAND(slope, ARG_2INT);
COMMANDN(vdelta, setvdelta, ARG_1INT);
COMMANDN(undo, editundo, ARG_NONE);
COMMAND(copy, ARG_NONE);
COMMAND(paste, ARG_NONE);
COMMAND(edittex, ARG_2INT);
COMMAND(newent, ARG_5STR);
COMMAND(perlin, ARG_3INT);