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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/* Starshatter OpenSource Distribution
Copyright (c) 1997-2004, Destroyer Studios LLC.
All Rights Reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name "Destroyer Studios" nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
SUBSYSTEM: Stars.exe
FILE: SteerAI.h
AUTHOR: John DiCamillo
OVERVIEW
========
Steering (low-level) Artifical Intelligence class
*/
#ifndef SteerAI_h
#define SteerAI_h
#include "Types.h"
#include "SimObject.h"
#include "Director.h"
#include "Geometry.h"
// +--------------------------------------------------------------------+
class System;
// +--------------------------------------------------------------------+
struct Steer
{
Steer() : yaw(0), pitch(0), roll(0), brake(0), stop(0) { }
Steer(double y, double p, double r, double b=0) : yaw(y), pitch(p), roll(r), brake(b), stop(0) { }
Steer(const Steer& s) : yaw(s.yaw), pitch(s.pitch), roll(s.roll), brake(s.brake), stop(s.stop) { }
Steer& operator = (const Steer& s) { yaw=s.yaw; pitch=s.pitch; roll=s.roll; brake = s.brake; stop = s.stop; return *this; }
Steer operator+(const Steer& s) const;
Steer operator-(const Steer& s) const;
Steer operator*(double f) const;
Steer operator/(double f) const;
Steer& operator+=(const Steer& s);
Steer& operator-=(const Steer& s);
double Magnitude() const;
void Clear() { yaw=0; pitch=0; roll=0; brake=0; stop=0; }
double yaw, pitch, roll;
double brake;
int stop;
};
// +--------------------------------------------------------------------+
class SteerAI : public Director, public SimObserver
{
public:
enum Type { SEEKER = 1000, FIGHTER, STARSHIP, GROUND };
SteerAI(SimObject* self);
virtual ~SteerAI();
static Director* Create(SimObject*, int type);
virtual void SetTarget(SimObject* targ, System* sub=0);
virtual SimObject* GetTarget() const { return target; }
virtual System* GetSubTarget() const { return subtarget; }
virtual void DropTarget(double drop_time=1.5);
virtual int Type() const { return ai_type; }
virtual bool Update(SimObject* obj);
virtual const char* GetObserverName() const;
// debug:
virtual Point GetObjective() const { return obj_w; }
virtual SimObject* GetOther() const { return other; }
protected:
// accumulate behaviors:
virtual void Navigator();
virtual int Accumulate(const Steer& steer);
// steering functions:
virtual Steer Seek(const Point& point);
virtual Steer Flee(const Point& point);
virtual Steer Avoid(const Point& point, float radius);
virtual Steer Evade(const Point& point, const Point& vel);
// compute the goal point based on target stats:
virtual void FindObjective();
virtual Point ClosingVelocity();
virtual Point Transform(const Point& pt);
virtual Point AimTransform(const Point& pt);
int seeking;
SimObject* self;
SimObject* target;
System* subtarget;
SimObject* other;
Point obj_w;
Point objective;
double distance;
double az[3], el[3];
Steer accumulator;
double magnitude;
DWORD evade_time;
double seek_gain;
double seek_damp;
int ai_type;
};
// +--------------------------------------------------------------------+
#endif // SteerAI_h
|
