diff options
Diffstat (limited to 'src/systems/pondering.cpp')
-rw-r--r-- | src/systems/pondering.cpp | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/src/systems/pondering.cpp b/src/systems/pondering.cpp new file mode 100644 index 0000000..4a165b1 --- /dev/null +++ b/src/systems/pondering.cpp | |||
@@ -0,0 +1,268 @@ | |||
1 | #include "pondering.h" | ||
2 | #include "game.h" | ||
3 | #include "components/ponderable.h" | ||
4 | #include "components/transformable.h" | ||
5 | #include "components/orientable.h" | ||
6 | #include "components/mappable.h" | ||
7 | #include "systems/orienting.h" | ||
8 | #include "consts.h" | ||
9 | |||
10 | void PonderingSystem::tick(double dt) | ||
11 | { | ||
12 | auto entities = game_.getEntityManager().getEntitiesWithComponents< | ||
13 | PonderableComponent, | ||
14 | TransformableComponent>(); | ||
15 | |||
16 | auto maps = game_.getEntityManager().getEntitiesWithComponents< | ||
17 | MappableComponent>(); | ||
18 | |||
19 | for (id_type entity : entities) | ||
20 | { | ||
21 | auto& transformable = game_.getEntityManager(). | ||
22 | getComponent<TransformableComponent>(entity); | ||
23 | |||
24 | auto& ponderable = game_.getEntityManager(). | ||
25 | getComponent<PonderableComponent>(entity); | ||
26 | |||
27 | // Accelerate | ||
28 | ponderable.setVelocityX( | ||
29 | ponderable.getVelocityX() + ponderable.getAccelX() * dt); | ||
30 | |||
31 | ponderable.setVelocityY( | ||
32 | ponderable.getVelocityY() + ponderable.getAccelY() * dt); | ||
33 | |||
34 | const double oldX = transformable.getX(); | ||
35 | const double oldY = transformable.getY(); | ||
36 | const double oldRight = oldX + transformable.getW(); | ||
37 | const double oldBottom = oldY + transformable.getH(); | ||
38 | |||
39 | double newX = oldX + ponderable.getVelocityX() * dt; | ||
40 | double newY = oldY + ponderable.getVelocityY() * dt; | ||
41 | |||
42 | bool oldGrounded = ponderable.isGrounded(); | ||
43 | ponderable.setGrounded(false); | ||
44 | |||
45 | for (id_type mapEntity : maps) | ||
46 | { | ||
47 | auto& mappable = game_.getEntityManager(). | ||
48 | getComponent<MappableComponent>(mapEntity); | ||
49 | |||
50 | if (newX < oldX) | ||
51 | { | ||
52 | for (auto it = mappable.getLeftBoundaries().lower_bound(oldX); | ||
53 | (it != std::end(mappable.getLeftBoundaries())) && (it->first >= newX); | ||
54 | it++) | ||
55 | { | ||
56 | if ((oldBottom > it->second.getLower()) | ||
57 | && (oldY < it->second.getUpper())) | ||
58 | { | ||
59 | // We have a collision! | ||
60 | processCollision( | ||
61 | entity, | ||
62 | Direction::left, | ||
63 | newX, | ||
64 | newY, | ||
65 | it->first, | ||
66 | it->second.getType()); | ||
67 | } | ||
68 | } | ||
69 | } else if (newX > oldX) | ||
70 | { | ||
71 | for (auto it = mappable.getRightBoundaries().lower_bound(oldRight); | ||
72 | (it != std::end(mappable.getRightBoundaries())) | ||
73 | && (it->first <= (newX + transformable.getW())); | ||
74 | it++) | ||
75 | { | ||
76 | if ((oldBottom > it->second.getLower()) | ||
77 | && (oldY < it->second.getUpper())) | ||
78 | { | ||
79 | // We have a collision! | ||
80 | processCollision( | ||
81 | entity, | ||
82 | Direction::right, | ||
83 | newX, | ||
84 | newY, | ||
85 | it->first, | ||
86 | it->second.getType()); | ||
87 | } | ||
88 | } | ||
89 | } | ||
90 | |||
91 | if (newY < oldY) | ||
92 | { | ||
93 | for (auto it = mappable.getUpBoundaries().lower_bound(oldY); | ||
94 | (it != std::end(mappable.getUpBoundaries())) && (it->first >= newY); | ||
95 | it++) | ||
96 | { | ||
97 | if ((oldRight > it->second.getLower()) | ||
98 | && (oldX < it->second.getUpper())) | ||
99 | { | ||
100 | // We have a collision! | ||
101 | processCollision( | ||
102 | entity, | ||
103 | Direction::up, | ||
104 | newX, | ||
105 | newY, | ||
106 | it->first, | ||
107 | it->second.getType()); | ||
108 | } | ||
109 | } | ||
110 | } else if (newY > oldY) | ||
111 | { | ||
112 | for (auto it = mappable.getDownBoundaries().lower_bound(oldBottom); | ||
113 | (it != std::end(mappable.getDownBoundaries())) | ||
114 | && (it->first <= (newY + transformable.getH())); | ||
115 | it++) | ||
116 | { | ||
117 | if ((oldRight > it->second.getLower()) | ||
118 | && (oldX < it->second.getUpper())) | ||
119 | { | ||
120 | // We have a collision! | ||
121 | processCollision( | ||
122 | entity, | ||
123 | Direction::down, | ||
124 | newX, | ||
125 | newY, | ||
126 | it->first, | ||
127 | it->second.getType()); | ||
128 | } | ||
129 | } | ||
130 | } | ||
131 | } | ||
132 | |||
133 | // Move | ||
134 | transformable.setX(newX); | ||
135 | transformable.setY(newY); | ||
136 | |||
137 | // Perform cleanup for orientable entites | ||
138 | if (game_.getEntityManager().hasComponent<OrientableComponent>(entity)) | ||
139 | { | ||
140 | auto& orientable = game_.getEntityManager(). | ||
141 | getComponent<OrientableComponent>(entity); | ||
142 | |||
143 | // Handle changes in groundedness | ||
144 | if (ponderable.isGrounded() != oldGrounded) | ||
145 | { | ||
146 | if (ponderable.isGrounded()) | ||
147 | { | ||
148 | game_.getSystemManager().getSystem<OrientingSystem>().land(entity); | ||
149 | } else { | ||
150 | game_.getSystemManager(). | ||
151 | getSystem<OrientingSystem>().startFalling(entity); | ||
152 | } | ||
153 | } | ||
154 | |||
155 | // Complete dropping, if necessary | ||
156 | if (orientable.getDropState() == OrientableComponent::DropState::active) | ||
157 | { | ||
158 | orientable.setDropState(OrientableComponent::DropState::none); | ||
159 | } | ||
160 | } | ||
161 | } | ||
162 | } | ||
163 | |||
164 | void PonderingSystem::initializeBody( | ||
165 | id_type entity, | ||
166 | PonderableComponent::Type type) | ||
167 | { | ||
168 | auto& ponderable = game_.getEntityManager(). | ||
169 | emplaceComponent<PonderableComponent>(entity, type); | ||
170 | |||
171 | if (type == PonderableComponent::Type::freefalling) | ||
172 | { | ||
173 | ponderable.setAccelY(NORMAL_GRAVITY); | ||
174 | } | ||
175 | } | ||
176 | |||
177 | void PonderingSystem::processCollision( | ||
178 | id_type entity, | ||
179 | Direction dir, | ||
180 | double& newX, | ||
181 | double& newY, | ||
182 | int axis, | ||
183 | MappableComponent::Boundary::Type type) | ||
184 | { | ||
185 | auto& ponderable = game_.getEntityManager(). | ||
186 | getComponent<PonderableComponent>(entity); | ||
187 | |||
188 | auto& transformable = game_.getEntityManager(). | ||
189 | getComponent<TransformableComponent>(entity); | ||
190 | |||
191 | bool touchedGround = false; | ||
192 | |||
193 | switch (type) | ||
194 | { | ||
195 | case MappableComponent::Boundary::Type::wall: | ||
196 | { | ||
197 | switch (dir) | ||
198 | { | ||
199 | case Direction::left: | ||
200 | { | ||
201 | newX = axis; | ||
202 | ponderable.setVelocityX(0.0); | ||
203 | |||
204 | break; | ||
205 | } | ||
206 | |||
207 | case Direction::right: | ||
208 | { | ||
209 | newX = axis - transformable.getW(); | ||
210 | ponderable.setVelocityX(0.0); | ||
211 | |||
212 | break; | ||
213 | } | ||
214 | |||
215 | case Direction::up: | ||
216 | { | ||
217 | newY = axis; | ||
218 | ponderable.setVelocityY(0.0); | ||
219 | |||
220 | break; | ||
221 | } | ||
222 | |||
223 | case Direction::down: | ||
224 | { | ||
225 | touchedGround = true; | ||
226 | |||
227 | break; | ||
228 | } | ||
229 | } | ||
230 | |||
231 | break; | ||
232 | } | ||
233 | |||
234 | case MappableComponent::Boundary::Type::platform: | ||
235 | { | ||
236 | if (game_.getEntityManager().hasComponent<OrientableComponent>(entity)) | ||
237 | { | ||
238 | auto& orientable = game_.getEntityManager(). | ||
239 | getComponent<OrientableComponent>(entity); | ||
240 | |||
241 | if (orientable.getDropState() != OrientableComponent::DropState::none) | ||
242 | { | ||
243 | orientable.setDropState(OrientableComponent::DropState::active); | ||
244 | } else { | ||
245 | touchedGround = true; | ||
246 | } | ||
247 | } else { | ||
248 | touchedGround = true; | ||
249 | } | ||
250 | |||
251 | break; | ||
252 | } | ||
253 | |||
254 | default: | ||
255 | { | ||
256 | // Not yet implemented. | ||
257 | |||
258 | break; | ||
259 | } | ||
260 | } | ||
261 | |||
262 | if (touchedGround) | ||
263 | { | ||
264 | newY = axis - transformable.getH(); | ||
265 | ponderable.setVelocityY(0.0); | ||
266 | ponderable.setGrounded(true); | ||
267 | } | ||
268 | } | ||