该项目使用INI来实现数据的读取。
比如：
1.节点读取
INI部分：
外观
Look
Body
model=impreza.3ds
scale=1 1 1
Wheels
model=wheel.3ds
scale=1 1 1
声音
Sound
Engine
wave=206_engine.wav
pitch_low=0.2
pitch_high=1.5
程序部分：
//load car
body.node=loadModel(cfg, "Look/Body/", device, sm, driver);
body.node_debug=sm->addCubeSceneNode(1, 0, -1, core::vector3df(0, 0, 0), core::vector3df(0, 0, 0),
cfg.Getval_vector("Body/Chassis/1/scale", core::vector3df(1, 1, 1))
);
body.node_debug->setMaterialTexture(0, driver->getTexture("data/misc/checked.jpg"));
2.车轮的属性
Wheel #default
damp=30000
spring=50000
radius=0.38
weight=20
width=0.10 #not yet used if user specifies wheel model
brakes=0 # 0.0 - 1.0
Wheel_1 #fl
pos=1.39 -0.145 0.823
attr=STEER
brakes=0.8
rotation_z=1.5707963 #used just by client part
Wheel_2 #fr
pos=1.39 -0.145 -0.823
attr=STEER
brakes=0.8
rotation_z=4.7123889
Wheel_3 #rl
pos=-1.350 -0.15 0.823
attr=STRAIGHT|THURST
brakes=0.2
rotation_z=1.5707963
Wheel_4 #rr
pos=-1.350 -0.15 -0.823
attr=STRAIGHT|THURST
brakes=0.2
rotation_z=4.7123889
for (int i=0; ; i++) {
char buf2[128];
sprintf(buf2, "Body/Wheel_%d/", i+1);
buf=buf2;
if (!cfg.Getval_exists(buf+"attr")) break;
double radius=cfg.Getval_double((string)buf+"radius", cfg.Getval_double("Body/Wheel/radius", 1));
double width=cfg.Getval_double((string)buf+"width", cfg.Getval_double("Body/Wheel/width", 1));
scene::ISceneNode* node=loadModel(cfg, "Look/Wheels/", device, sm, driver);
CModelAttr wm;
scene::IMesh* cm=CreateCylinder(25, 2, 1);
scene::ISceneNode* node_debug=sm->addMeshSceneNode(cm);
node_debug->setScale(core::vector3df((f32)(radius), (f32)width, (f32)(radius)));
node_debug->setMaterialTexture(0, driver->getTexture("data/misc/checked.jpg"));
node_debug->getMaterial(0).EmissiveColor.set(255,255,255,255);
wm.arot=core::vector3df((f32)cfg.Getval_double(buf+"rotation_x", 0),
(f32)cfg.Getval_double(buf+"rotation_y", 0),
(f32)cfg.Getval_double(buf+"rotation_z", 0));
wm.node=node;
wm.node_debug=node_debug;
wheels.push_back(wm);
}
3.声音－－－车开动时的轰鸣声
//load sounds
try {
snd_engine = new openalpp::Source((ALbyte*)("data/cars/"+profile+"/"+cfg.Getval_str("Sound/Engine/wave")).c_str());
if (!snd_engine.valid())
DBGCOUT("ALUT", "Coulnd't load file", ("data/cars/"+profile+"/"+cfg.Getval_str("Sound/Engine/wave")).c_str());
else {
snd_engine->setGain(1);
snd_engine->setPosition(0.0,0.0,0.0);
snd_engine->setLooping(true);
}
snd_engine_pitch_low=cfg.Getval_double("Sound/Engine/pitch_low");
snd_engine_pitch_high=cfg.Getval_double("Sound/Engine/pitch_high");
} catch(openalpp::Error e) {
std::cerr << e << "\n";
}