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Dogcows Code - chaz/yoink/blob - src/Character.hh
087bf494c819743eafc099fcca9f7c9635fc300a
2 /*******************************************************************************
4 Copyright (c) 2009, Charles McGarvey
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
10 * Redistributions of source code must retain the above copyright notice,
11 this list of conditions and the following disclaimer.
12 * Redistributions in binary form must reproduce the above copyright notice,
13 this list of conditions and the following disclaimer in the documentation
14 and/or other materials provided with the distribution.
16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
20 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *******************************************************************************/
29 #ifndef _CHARACTER_HH_
30 #define _CHARACTER_HH_
32 #include <boost/shared_ptr.hpp>
34 #include <Moof/Animation.hh>
35 #include <Moof/Entity.hh>
36 #include <Moof/Event.hh>
37 #include <Moof/Math.hh>
38 #include <Moof/RK4.hh>
39 #include <Moof/Tilemap.hh>
43 typedef boost::shared_ptr
<Character
> CharacterP
;
47 * Parent class of animate objects with "personalities." This basically
48 * includes the heroine herself and the bad guys.
51 struct Character
: public Mf::Entity
58 Derivative
operator*(Mf::Scalar dt
) const
60 Derivative derivative
;
61 derivative
.velocity
= dt
* velocity
;
62 derivative
.force
= dt
* force
;
66 Derivative
operator+(const Derivative
& other
) const
68 Derivative derivative
;
69 derivative
.velocity
= velocity
+ other
.velocity
;
70 derivative
.force
= force
+ other
.force
;
90 Mf::Scalar inverseMass
;
94 velocity
= momentum
* inverseMass
;
98 void getDerivative(Derivative
& derivative
, Mf::Scalar t
) const
100 //derivative.velocity = Mf::Vector2(0.0, 0.0);
101 //derivative.force = Mf::Vector2(0.0, 0.0);
102 derivative
.velocity
= velocity
;
103 derivative
.force
= force
;
105 //Mf::Vector2 x = position - Mf::Vector2(500.0, 200.0);
106 //derivative.force += -15.0 * x - 1.5 * velocity;
109 void applyDerivative(const Derivative
& derivative
, Mf::Scalar dt
)
111 position
+= dt
* derivative
.velocity
;
112 momentum
+= dt
* derivative
.force
;
116 // these two operator overloads all using the state in generic
117 // interpolator implementations
119 State
operator*(Mf::Scalar scalar
) const
122 state
.position
*= scalar
;
123 state
.momentum
*= scalar
;
128 State
operator+(const State
& state
) const
130 State newState
= *this;
131 newState
.position
+= state
.position
;
132 newState
.momentum
+= state
.momentum
;
133 newState
.recalculate();
144 static const Mf::Scalar z
= 96.0;
146 Mf::Tilemap tilemap_
;
147 Mf::Animation animation_
;
151 Mf::Vector2 userForce
;
155 Character(const std::string
& name
);
156 virtual ~Character() {}
158 virtual void update(Mf::Scalar t
, Mf::Scalar dt
);
159 virtual void draw(Mf::Scalar alpha
) const;
161 Mf::Tilemap
& getTilemap();
162 Mf::Animation
& getAnimation();
166 #endif // _CHARACTER_HH_
168 /** vim: set ts=4 sw=4 tw=80: *************************************************/
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