Initial support for intensive floating point compuitations used in

Putt-Putt Race. Still incomplete.

svn-id: r17949

1 files changed, 248 insertions, 0 deletions

diff --git a/scumm/logic_he.cpp b/scumm/logic_he.cpp
new file mode 100644
index 0000000000..971810384a
--- /dev/null
+++ b/scumm/logic_he.cpp
@@ -0,0 +1,248 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2005 The ScummVM project
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * $Header$
+ *
+ */
+
+#include "stdafx.h"
+
+#include "scumm/intern.h"
+#include "scumm/logic_he.h"
+
+namespace Scumm {
+
+/***********************
+ * Putt-Putt Joins the Race
+ *
+ */
+
+LogicHE::LogicHE(ScummEngine *vm) : _vm(vm) {
+	_userData = (float *)calloc(0x930, 1);
+}
+
+LogicHE::~LogicHE() {
+	free(_userData);
+}
+
+void LogicHE::beforeBootScript() {
+	// void implementation
+}
+
+void LogicHE::initOnce() {
+	// void implementation
+}
+
+void LogicHE::startOfFrame() {
+	// void implementation
+}
+
+void LogicHE::endOfFrame() {
+	// void implementation
+}
+
+int LogicHE::versionID() {
+	return 1;
+}
+
+int32 LogicHE::dispatch(int op, int numArgs, int32 *args) {
+	int32 res;
+
+	switch (op) {
+	case 1003:
+		res = op_1003(args);
+		break;
+
+	case 1004:
+		res = op_1004(args);
+		break;
+
+	case 1100:
+		res = op_1100(args);
+		break;
+
+	case 1101:
+		res = op_1101(args);
+		break;
+
+	case 1102:
+		res = op_1102(args);
+		break;
+
+	case 1103:
+		res = op_1103(args);
+		break;
+
+	case 1110:
+		res = op_1110();
+		break;
+
+	case 1120:
+		res = op_1120(args);
+		break;
+
+	case 1130:
+		res = op_1130(args);
+		break;
+
+	case 1140:
+		res = op_1140(args);
+		break;
+
+	default:
+		res = 0;
+		break;
+
+	}
+
+	return res;
+}
+
+#define RAD2DEG 5.729577951308239e1
+#define DEG2RAD 1.745329251994328e-2
+
+int32 LogicHE::op_1003(int32 *args) {
+	int value = args[2] ? args[2] : 1;
+
+	_vm->writeVar(108, (int32)(atan(args[0] / args[1]) * RAD2DEG * value));
+
+	return 1;
+}
+
+int32 LogicHE::op_1004(int32 *args) {
+	int value = args[1] ? args[1] : 1;
+
+	_vm->writeVar(108, (int32)(sqrt(args[0]) * value));
+
+	return 1;
+}
+
+int32 LogicHE::op_1100(int32 *args) {
+	_userData[516] = args[0] / args[10];
+	_userData[517] = args[1] / args[10];
+	_userData[518] = args[2] / args[10];
+	_userData[519] = args[3] / args[10];
+	_userData[520] = (float)args[4] / args[10];
+	args[4] = args[10];
+
+	op_sub1(_userData[520]);
+
+	_userData[521] = (float)args[5] / args[4];
+	
+	op_sub2(_userData[521]);
+
+	_userData[532] = args[10];
+
+	args[1] = args[8];
+	args[10] = args[9];
+
+	_userData[524] = args[1];
+	_userData[525] = args[10];
+	_userData[522] = args[6] / args[4];
+	_userData[523] = args[7] / args[4];
+	_userData[526] = args[6] / args[1] / args[4];
+	_userData[527] = args[7] / args[10] / args[4];
+
+	args[0] = args[7] / args[10];
+
+	_vm->writeVar(108, (int32)(args[6] / args[1] * args[4]));
+
+	_vm->writeVar(109, (int32)(args[0] * args[4]));
+
+	_userData[528] = _userData[519] - _userData[523] * 0.5;
+	_userData[529] = _userData[519] + _userData[523] * 0.5;
+
+	_vm->writeVar(110, (int32)(_userData[528] * args[4]));
+
+	_vm->writeVar(111, (int32)(_userData[529] * args[4]));
+
+	_userData[530] = _userData[517] * tan(_userData[529] * DEG2RAD);
+	_userData[531] = _userData[517] * tan(_userData[528] * DEG2RAD);
+
+	_vm->writeVar(112, (int32)(_userData[517] * tan(_userData[529] * DEG2RAD) * args[4]));
+
+	_vm->writeVar(113, (int32)(_userData[531] * args[4]));
+
+	return 1;
+}
+
+int32 LogicHE::op_1101(int32 *args) {
+	int32 retval = 1;
+
+	// TODO
+
+	return retval;
+}
+
+int32 LogicHE::op_1102(int32 *args) {
+	int32 retval = 1;
+
+	// TODO
+
+	return retval;
+}
+
+int32 LogicHE::op_1103(int32 *args) {
+	double angle = args[0] / args[1] * DEG2RAD;
+	
+	_vm->writeVar(108, (int32)(sin(angle) * args[2]));
+	_vm->writeVar(109, (int32)(cos(angle) * args[2]));
+
+	return 1;
+}
+
+int32 LogicHE::op_1110() {
+	_vm->writeVar(108, (int32)(_userData[526] * _userData[532] * _userData[532]));
+	_vm->writeVar(109, (int32)(_userData[527] * _userData[532] * _userData[532]));
+	_vm->writeVar(110, (int32)(_userData[532]));
+
+	return 1;
+}
+
+int32 LogicHE::op_1120(int32 *args) {
+	// TODO
+
+	return 1;
+}
+
+int32 LogicHE::op_1130(int32 *args) {
+	float cs = cos(args[0] / _userData[532] * DEG2RAD);
+	float sn = sin(args[0] / _userData[532] * DEG2RAD);
+
+	_vm->writeVar(108, (int32)(cs * args[1] + sn * args[2]));
+
+	_vm->writeVar(109, (int32)(cs * args[2] - sn * args[1]));
+
+	return 1;
+}
+
+int32 LogicHE::op_1140(int32 *args) {
+	// TODO
+
+	return 1;
+}
+
+void LogicHE::op_sub1(float arg) {
+}
+
+void LogicHE::op_sub2(float arg) {
+}
+
+void LogicHE::op_sub3(float arg) {
+}
+
+} // End of namespace Scumm