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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "engines/director/lingo/lingo.h"
namespace Director {
static struct BuiltinProto {
const char *name;
void (*func)(void);
int nparams;
} builtins[] = {
{ "abs", Lingo::b_abs, 1},
{ "atan", Lingo::b_atan, 1},
{ "cos", Lingo::b_cos, 1},
{ "exp", Lingo::b_exp, 1},
{ "integer",Lingo::b_integer, 1},
{ "log", Lingo::b_log, 1},
{ "random", Lingo::b_random, 1},
{ 0, 0, 0 }
};
void Lingo::initBuiltIns() {
for (BuiltinProto *blt = builtins; blt->name; blt++) {
_builtins[blt->name] = new Builtin(blt->func, blt->nparams);
}
}
void Lingo::b_abs() {
Datum d = g_lingo->pop();
if (d.type == INT)
d.u.i = ABS(d.u.i);
else if (d.type == FLOAT)
d.u.f = ABS(d.u.f);
g_lingo->push(d);
}
void Lingo::b_atan() {
Datum d = g_lingo->pop();
d.toFloat();
d.u.f = atanf(d.u.f);
g_lingo->push(d);
}
void Lingo::b_cos() {
Datum d = g_lingo->pop();
d.toFloat();
d.u.f = cos(d.u.f);
g_lingo->push(d);
}
void Lingo::b_exp() {
Datum d = g_lingo->pop();
d.toInt(); // Lingo uses int, so we're enforcing it
d.toFloat();
d.u.f = expf(d.u.f);
g_lingo->push(d);
}
void Lingo::b_integer() {
Datum d = g_lingo->pop();
d.toInt();
g_lingo->push(d);
}
void Lingo::b_log() {
Datum d = g_lingo->pop();
d.toFloat();
d.u.f = logf(d.u.f);
g_lingo->push(d);
}
void Lingo::b_random() {
Datum max = g_lingo->pop();
Datum res;
max.toInt();
res.u.i = g_lingo->_vm->_rnd.getRandomNumber(max.u.i);
res.type = INT;
g_lingo->push(res);
}
}
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