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Dogcows Code - chaz/yoink/blob - src/Character.hh
090e7cb97a1d308e124735f01190f21751e785e0
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
59 Derivative operator*(Mf::Scalar dt) const
61 Derivative derivative;
62 derivative.velocity = dt * velocity;
63 derivative.force = dt * force;
67 Derivative operator+(const Derivative& other) const
69 Derivative derivative;
70 derivative.velocity = velocity + other.velocity;
71 derivative.force = force + other.force;
91 Mf::Scalar inverseMass;
95 velocity = momentum * inverseMass;
99 void getDerivative(Derivative& derivative, Mf::Scalar t) const
101 //derivative.velocity = Mf::Vector2(0.0, 0.0);
102 //derivative.force = Mf::Vector2(0.0, 0.0);
103 derivative.velocity = velocity;
104 derivative.force = force;
106 //Mf::Vector2 x = position - Mf::Vector2(500.0, 200.0);
107 //derivative.force += -15.0 * x - 1.5 * velocity;
110 void applyDerivative(const Derivative& derivative, Mf::Scalar dt)
112 position += dt * derivative.velocity;
113 momentum += dt * derivative.force;
117 // these two operator overloads all using the state in generic
118 // interpolator implementations
120 State operator*(Mf::Scalar scalar) const
123 state.position *= scalar;
124 state.momentum *= scalar;
129 State operator+(const State& state) const
131 State newState = *this;
132 newState.position += state.position;
133 newState.momentum += state.momentum;
134 newState.recalculate();
146 static const Mf::Scalar z
= 96.0;
148 Mf::Tilemap tilemap_
;
149 Mf::Animation animation_
;
153 Mf::Vector2 userForce
;
157 Character(const std::string
& name
);
158 virtual ~Character() {}
160 virtual void update(Mf::Scalar t
, Mf::Scalar dt
);
161 virtual void draw(Mf::Scalar alpha
) const;
163 Mf::Tilemap
& getTilemap();
164 Mf::Animation
& getAnimation();
168 #endif // _CHARACTER_HH_
170 /** vim: set ts=4 sw=4 tw=80: *************************************************/
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