aboutsummaryrefslogtreecommitdiff
path: root/engines/pegasus/neighborhood/mars/gravitoncannon.cpp
blob: d04b3d08b25b7c6738d59089c44054fcd981ac33 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
/* 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.
 *
 * Additional copyright for this file:
 * Copyright (C) 1995-1997 Presto Studios, Inc.
 *
 * 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 "pegasus/neighborhood/mars/gravitoncannon.h"
#include "pegasus/neighborhood/mars/robotship.h"
#include "pegasus/neighborhood/mars/spacejunk.h"

namespace Pegasus {

static const TimeValue kGravitonTime = kOneSecond * kShuttleWeaponScale;

static const CoordType kGravitonOriginH = kShuttleWindowLeft - 1;
static const CoordType kGravitonOriginV = kShuttleWindowMidV;

static const float kGravitonXOrigin = convertScreenHToSpaceX(kGravitonOriginH, kGravitonMinDistance);
static const float kGravitonYOrigin = convertScreenVToSpaceY(kGravitonOriginV, kGravitonMinDistance);
static const float kGravitonZOrigin = kGravitonMinDistance;

// Width of graviton sprite...
static const CoordType kGravitonMaxScreenWidth = 78;
static const CoordType kGravitonMaxScreenHeight = 46;

static const float kGravitonWidth = convertScreenHToSpaceX(kShuttleWindowMidH + kGravitonMaxScreenWidth / 2, kGravitonMinDistance)
		- convertScreenHToSpaceX(kShuttleWindowMidH - kGravitonMaxScreenWidth / 2, kGravitonMinDistance);
static const float kGravitonHeight = convertScreenVToSpaceY(kShuttleWindowMidV - kGravitonMaxScreenHeight / 2, kGravitonMinDistance)
		- convertScreenVToSpaceY(kShuttleWindowMidV + kGravitonMaxScreenHeight / 2, kGravitonMinDistance);

GravitonCannon::GravitonCannon() {
	_weaponDuration = kGravitonTime;
	setSegment(0, kGravitonTime);
	_weaponOrigin = Point3D(kGravitonXOrigin, kGravitonYOrigin, kGravitonZOrigin);
	_rightOrigin = Point3D(-kGravitonXOrigin, kGravitonYOrigin, kGravitonZOrigin);
}

void GravitonCannon::initShuttleWeapon() {
	ShuttleWeapon::initShuttleWeapon();
	_gravitonImage.getImageFromPICTFile("Images/Mars/Graviton Cannon");
	_gravitonImage.getSurfaceBounds(_gravitonBounds);
}

void GravitonCannon::cleanUpShuttleWeapon() {
	_gravitonImage.deallocateSurface();
	ShuttleWeapon::cleanUpShuttleWeapon();
}

void GravitonCannon::draw(const Common::Rect &) {
	// Left graviton...
	Point3D pt3D = _weaponLocation;
	pt3D.translate(-kGravitonWidth / 2, kGravitonHeight / 2, 0);
	Common::Point pt2D;
	project3DTo2D(pt3D, pt2D);
	Common::Rect gravitonRect;
	gravitonRect.left = pt2D.x;
	gravitonRect.top = pt2D.y;

	pt3D.translate(kGravitonWidth, -kGravitonHeight, 0);
	project3DTo2D(pt3D, pt2D);
	gravitonRect.right = pt2D.x;
	gravitonRect.bottom = pt2D.y;

	_gravitonImage.scaleTransparentCopy(_gravitonBounds, gravitonRect);

	// Right graviton...
	pt3D = _rightLocation;
	pt3D.translate(-kGravitonWidth / 2, kGravitonHeight / 2, 0);
	project3DTo2D(pt3D, pt2D);
	gravitonRect.left = pt2D.x;
	gravitonRect.top = pt2D.y;

	pt3D.translate(kGravitonWidth, -kGravitonHeight, 0);
	project3DTo2D(pt3D, pt2D);
	gravitonRect.right = pt2D.x;
	gravitonRect.bottom = pt2D.y;

	_gravitonImage.scaleTransparentCopy(_gravitonBounds, gravitonRect);
}

void GravitonCannon::updateWeaponPosition() {
	ShuttleWeapon::updateWeaponPosition();
	if (_weaponTime != 1.0)
		linearInterp(_rightOrigin, _weaponTarget, _weaponTime, _rightLocation);
}

bool GravitonCannon::collisionWithJunk(Common::Point &impactPoint) {
	if (getDisplayOrder() == kShuttleWeaponFrontOrder) {
		Point3D junkPosition;
		g_spaceJunk->getJunkPosition(junkPosition);

		if (junkPosition.z < _weaponLocation.z) {
			setDisplayOrder(kShuttleWeaponBackOrder);
			project3DTo2D(_weaponLocation, impactPoint);

			if (g_spaceJunk->pointInJunk(impactPoint))
				return true;

			project3DTo2D(_rightLocation, impactPoint);
			return g_spaceJunk->pointInJunk(impactPoint);
		}
	}

	return false;
}

void GravitonCannon::hitJunk(Common::Point impactPoint) {
	g_spaceJunk->hitByGravitonCannon(impactPoint);
}

void GravitonCannon::hitShuttle(Common::Point impactPoint) {
	g_robotShip->hitByGravitonCannon(impactPoint);
}

} // End of namespace Pegasus