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1 /*
2  * Copyright (c) 2009-2010 jMonkeyEngine
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are
7  * met:
8  *
9  * * Redistributions of source code must retain the above copyright
10  *   notice, this list of conditions and the following disclaimer.
11  *
12  * * Redistributions in binary form must reproduce the above copyright
13  *   notice, this list of conditions and the following disclaimer in the
14  *   documentation and/or other materials provided with the distribution.
15  *
16  * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
17  *   may be used to endorse or promote products derived from this software
18  *   without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 /**
34  * Author: Normen Hansen
35  */
36 
37 #include "com_jme3_bullet_objects_PhysicsVehicle.h"
38 #include "jmeBulletUtil.h"
39 #include "jmePhysicsSpace.h"
40 #include "BulletDynamics/Vehicle/btRaycastVehicle.h"
41 
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45 
46     /*
47      * Class:     com_jme3_bullet_objects_PhysicsVehicle
48      * Method:    updateWheelTransform
49      * Signature: (JIZ)V
50      */
Java_com_jme3_bullet_objects_PhysicsVehicle_updateWheelTransform(JNIEnv * env,jobject object,jlong vehicleId,jint wheel,jboolean interpolated)51     JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsVehicle_updateWheelTransform
52     (JNIEnv *env, jobject object, jlong vehicleId, jint wheel, jboolean interpolated) {
53         btRaycastVehicle* vehicle = reinterpret_cast<btRaycastVehicle*>(vehicleId);
54         if (vehicle == NULL) {
55             jclass newExc = env->FindClass("java/lang/NullPointerException");
56             env->ThrowNew(newExc, "The native object does not exist.");
57             return;
58         }
59         vehicle->updateWheelTransform(wheel, interpolated);
60     }
61 
62     /*
63      * Class:     com_jme3_bullet_objects_PhysicsVehicle
64      * Method:    createVehicleRaycaster
65      * Signature: (JJ)J
66      */
Java_com_jme3_bullet_objects_PhysicsVehicle_createVehicleRaycaster(JNIEnv * env,jobject object,jlong bodyId,jlong spaceId)67     JNIEXPORT jlong JNICALL Java_com_jme3_bullet_objects_PhysicsVehicle_createVehicleRaycaster
68     (JNIEnv *env, jobject object, jlong bodyId, jlong spaceId) {
69         //btRigidBody* body = reinterpret_cast<btRigidBody*> bodyId;
70         jmeClasses::initJavaClasses(env);
71         jmePhysicsSpace *space = reinterpret_cast<jmePhysicsSpace*>(spaceId);
72         if (space == NULL) {
73             jclass newExc = env->FindClass("java/lang/NullPointerException");
74             env->ThrowNew(newExc, "The native object does not exist.");
75             return 0;
76         }
77         btDefaultVehicleRaycaster* caster = new btDefaultVehicleRaycaster(space->getDynamicsWorld());
78         return reinterpret_cast<jlong>(caster);
79     }
80 
81     /*
82      * Class:     com_jme3_bullet_objects_PhysicsVehicle
83      * Method:    createRaycastVehicle
84      * Signature: (JJ)J
85      */
Java_com_jme3_bullet_objects_PhysicsVehicle_createRaycastVehicle(JNIEnv * env,jobject object,jlong objectId,jlong casterId)86     JNIEXPORT jlong JNICALL Java_com_jme3_bullet_objects_PhysicsVehicle_createRaycastVehicle
87     (JNIEnv *env, jobject object, jlong objectId, jlong casterId) {
88         jmeClasses::initJavaClasses(env);
89         btRigidBody* body = reinterpret_cast<btRigidBody*>(objectId);
90         if (body == NULL) {
91             jclass newExc = env->FindClass("java/lang/NullPointerException");
92             env->ThrowNew(newExc, "The native object does not exist.");
93             return 0;
94         }
95         body->setActivationState(DISABLE_DEACTIVATION);
96         btVehicleRaycaster* caster = reinterpret_cast<btDefaultVehicleRaycaster*>(casterId);
97         if (caster == NULL) {
98             jclass newExc = env->FindClass("java/lang/NullPointerException");
99             env->ThrowNew(newExc, "The native object does not exist.");
100             return 0;
101         }
102         btRaycastVehicle::btVehicleTuning tuning;
103         btRaycastVehicle* vehicle = new btRaycastVehicle(tuning, body, caster);
104         return reinterpret_cast<jlong>(vehicle);
105 
106     }
107 
108     /*
109      * Class:     com_jme3_bullet_objects_PhysicsVehicle
110      * Method:    setCoordinateSystem
111      * Signature: (JIII)V
112      */
Java_com_jme3_bullet_objects_PhysicsVehicle_setCoordinateSystem(JNIEnv * env,jobject object,jlong vehicleId,jint right,jint up,jint forward)113     JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsVehicle_setCoordinateSystem
114     (JNIEnv *env, jobject object, jlong vehicleId, jint right, jint up, jint forward) {
115         btRaycastVehicle* vehicle = reinterpret_cast<btRaycastVehicle*>(vehicleId);
116         if (vehicle == NULL) {
117             jclass newExc = env->FindClass("java/lang/NullPointerException");
118             env->ThrowNew(newExc, "The native object does not exist.");
119             return;
120         }
121         vehicle->setCoordinateSystem(right, up, forward);
122     }
123 
124     /*
125      * Class:     com_jme3_bullet_objects_PhysicsVehicle
126      * Method:    addWheel
127      * Signature: (JLcom/jme3/math/Vector3f;Lcom/jme3/math/Vector3f;Lcom/jme3/math/Vector3f;FFLcom/jme3/bullet/objects/infos/VehicleTuning;Z)J
128      */
Java_com_jme3_bullet_objects_PhysicsVehicle_addWheel(JNIEnv * env,jobject object,jlong vehicleId,jobject location,jobject direction,jobject axle,jfloat restLength,jfloat radius,jobject tuning,jboolean frontWheel)129     JNIEXPORT jint JNICALL Java_com_jme3_bullet_objects_PhysicsVehicle_addWheel
130     (JNIEnv *env, jobject object, jlong vehicleId, jobject location, jobject direction, jobject axle, jfloat restLength, jfloat radius, jobject tuning, jboolean frontWheel) {
131         btRaycastVehicle* vehicle = reinterpret_cast<btRaycastVehicle*>(vehicleId);
132         if (vehicle == NULL) {
133             jclass newExc = env->FindClass("java/lang/NullPointerException");
134             env->ThrowNew(newExc, "The native object does not exist.");
135             return 0;
136         }
137         btVector3 vec1 = btVector3();
138         btVector3 vec2 = btVector3();
139         btVector3 vec3 = btVector3();
140         jmeBulletUtil::convert(env, location, &vec1);
141         jmeBulletUtil::convert(env, direction, &vec2);
142         jmeBulletUtil::convert(env, axle, &vec3);
143         btRaycastVehicle::btVehicleTuning tune;
144         btWheelInfo* info = &vehicle->addWheel(vec1, vec2, vec3, restLength, radius, tune, frontWheel);
145         int idx = vehicle->getNumWheels();
146         return idx-1;
147     }
148 
149     /*
150      * Class:     com_jme3_bullet_objects_PhysicsVehicle
151      * Method:    resetSuspension
152      * Signature: (J)V
153      */
Java_com_jme3_bullet_objects_PhysicsVehicle_resetSuspension(JNIEnv * env,jobject object,jlong vehicleId)154     JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsVehicle_resetSuspension
155     (JNIEnv *env, jobject object, jlong vehicleId) {
156         btRaycastVehicle* vehicle = reinterpret_cast<btRaycastVehicle*>(vehicleId);
157         if (vehicle == NULL) {
158             jclass newExc = env->FindClass("java/lang/NullPointerException");
159             env->ThrowNew(newExc, "The native object does not exist.");
160             return;
161         }
162         vehicle->resetSuspension();
163     }
164 
165     /*
166      * Class:     com_jme3_bullet_objects_PhysicsVehicle
167      * Method:    applyEngineForce
168      * Signature: (JIF)V
169      */
Java_com_jme3_bullet_objects_PhysicsVehicle_applyEngineForce(JNIEnv * env,jobject object,jlong vehicleId,jint wheel,jfloat force)170     JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsVehicle_applyEngineForce
171     (JNIEnv *env, jobject object, jlong vehicleId, jint wheel, jfloat force) {
172         btRaycastVehicle* vehicle = reinterpret_cast<btRaycastVehicle*>(vehicleId);
173         if (vehicle == NULL) {
174             jclass newExc = env->FindClass("java/lang/NullPointerException");
175             env->ThrowNew(newExc, "The native object does not exist.");
176             return;
177         }
178         vehicle->applyEngineForce(force, wheel);
179     }
180 
181     /*
182      * Class:     com_jme3_bullet_objects_PhysicsVehicle
183      * Method:    steer
184      * Signature: (JIF)V
185      */
Java_com_jme3_bullet_objects_PhysicsVehicle_steer(JNIEnv * env,jobject object,jlong vehicleId,jint wheel,jfloat value)186     JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsVehicle_steer
187     (JNIEnv *env, jobject object, jlong vehicleId, jint wheel, jfloat value) {
188         btRaycastVehicle* vehicle = reinterpret_cast<btRaycastVehicle*>(vehicleId);
189         if (vehicle == NULL) {
190             jclass newExc = env->FindClass("java/lang/NullPointerException");
191             env->ThrowNew(newExc, "The native object does not exist.");
192             return;
193         }
194         vehicle->setSteeringValue(value, wheel);
195     }
196 
197     /*
198      * Class:     com_jme3_bullet_objects_PhysicsVehicle
199      * Method:    brake
200      * Signature: (JIF)F
201      */
Java_com_jme3_bullet_objects_PhysicsVehicle_brake(JNIEnv * env,jobject object,jlong vehicleId,jint wheel,jfloat value)202     JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsVehicle_brake
203     (JNIEnv *env, jobject object, jlong vehicleId, jint wheel, jfloat value) {
204         btRaycastVehicle* vehicle = reinterpret_cast<btRaycastVehicle*>(vehicleId);
205         if (vehicle == NULL) {
206             jclass newExc = env->FindClass("java/lang/NullPointerException");
207             env->ThrowNew(newExc, "The native object does not exist.");
208             return;
209         }
210         vehicle->setBrake(value, wheel);
211     }
212 
213     /*
214      * Class:     com_jme3_bullet_objects_PhysicsVehicle
215      * Method:    getCurrentVehicleSpeedKmHour
216      * Signature: (J)F
217      */
Java_com_jme3_bullet_objects_PhysicsVehicle_getCurrentVehicleSpeedKmHour(JNIEnv * env,jobject object,jlong vehicleId)218     JNIEXPORT jfloat JNICALL Java_com_jme3_bullet_objects_PhysicsVehicle_getCurrentVehicleSpeedKmHour
219     (JNIEnv *env, jobject object, jlong vehicleId) {
220         btRaycastVehicle* vehicle = reinterpret_cast<btRaycastVehicle*>(vehicleId);
221         if (vehicle == NULL) {
222             jclass newExc = env->FindClass("java/lang/NullPointerException");
223             env->ThrowNew(newExc, "The native object does not exist.");
224             return 0;
225         }
226         return vehicle->getCurrentSpeedKmHour();
227     }
228 
229     /*
230      * Class:     com_jme3_bullet_objects_PhysicsVehicle
231      * Method:    getForwardVector
232      * Signature: (JLcom/jme3/math/Vector3f;)V
233      */
Java_com_jme3_bullet_objects_PhysicsVehicle_getForwardVector(JNIEnv * env,jobject object,jlong vehicleId,jobject out)234     JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsVehicle_getForwardVector
235     (JNIEnv *env, jobject object, jlong vehicleId, jobject out) {
236         btRaycastVehicle* vehicle = reinterpret_cast<btRaycastVehicle*>(vehicleId);
237         if (vehicle == NULL) {
238             jclass newExc = env->FindClass("java/lang/NullPointerException");
239             env->ThrowNew(newExc, "The native object does not exist.");
240             return;
241         }
242         btVector3 forwardVector = vehicle->getForwardVector();
243         jmeBulletUtil::convert(env, &forwardVector, out);
244     }
245 
246     /*
247      * Class:     com_jme3_bullet_objects_PhysicsVehicle
248      * Method:    finalizeNative
249      * Signature: (JJ)V
250      */
Java_com_jme3_bullet_objects_PhysicsVehicle_finalizeNative(JNIEnv * env,jobject object,jlong casterId,jlong vehicleId)251     JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsVehicle_finalizeNative
252     (JNIEnv *env, jobject object, jlong casterId, jlong vehicleId) {
253         btVehicleRaycaster* rayCaster = reinterpret_cast<btVehicleRaycaster*>(casterId);
254         btRaycastVehicle* vehicle = reinterpret_cast<btRaycastVehicle*>(vehicleId);
255         if (vehicle == NULL) {
256             jclass newExc = env->FindClass("java/lang/NullPointerException");
257             env->ThrowNew(newExc, "The native object does not exist.");
258             return;
259         }
260         delete(vehicle);
261         if (rayCaster == NULL) {
262             jclass newExc = env->FindClass("java/lang/NullPointerException");
263             env->ThrowNew(newExc, "The native object does not exist.");
264             return;
265         }
266         delete(rayCaster);
267     }
268 
269 #ifdef __cplusplus
270 }
271 #endif
272 
273