私はOpenGLで3D環境を作成して、前後に動かしたり(左/右を上下に)移動することができます。右に左に歩いてください。iPhone:3D空間で移動する(gluLookAtを使用して横に踏み込む)
私はgluLookAtを使用していますし、私の前進のコードは
GLfloat v[] = {[self centerAtIndex:0] - [self eyeAtIndex:0],[self centerAtIndex:1] - [self eyeAtIndex:1], [self centerAtIndex:2] - [self eyeAtIndex:2]};
[self setEye:[self eyeAtIndex:0] + v[0] * SPEED_MOVE atIndex:0];
[self setEye:[self eyeAtIndex:2] + v[2] * SPEED_MOVE atIndex:2];
[self setCenter: [self centerAtIndex:0] + v[0] * SPEED_MOVE atIndex:0];
[self setCenter: [self centerAtIndex:2] + v[2] * SPEED_MOVE atIndex:2];
と
gluLookAt(eye[0], eye[1], eye[2],center[0], center[1], center[2], 0.0, 1, 0.0);
誰でもありだとサイドステップやは例を見てどのように任意のアイデア?
ソリューション
float up[3] = {0, 1, 0};
float forward[3] = { center[0] - eye[0],center[1] - eye[1],center[2] - eye[2] };
float left[3];
left[0] = forward[1] * up[2] - forward[2] * up[1];
left[1] = forward[2] * up[0] - forward[0] * up[2];
left[2] = forward[0] * up[1] - forward[1] * up[0];
// now translate your eye position
[self setEye:[self eyeAtIndex:0] - left[0] * SPEED_MOVE atIndex:0];
[self setEye:[self eyeAtIndex:2] - left[2] * SPEED_MOVE atIndex:2];
[self setCenter: [self centerAtIndex:0] - left[0] * SPEED_MOVE atIndex:0];
[self setCenter: [self centerAtIndex:2] - left[2] * SPEED_MOVE atIndex:2];
if (([self eyeAtIndex:2] >= MapSizeZ || [self eyeAtIndex:0] >= MapSizeX || [self eyeAtIndex:2] <= 1 || [self eyeAtIndex:0] <= 1) || [self checkCollisionWithPoint:CGPointMake([self eyeAtIndex:0] ,[self eyeAtIndex:2])]){
[self setEye:[self eyeAtIndex:0] + left[0] * SPEED_MOVE atIndex:0];
[self setEye:[self eyeAtIndex:2] + left[2] * SPEED_MOVE atIndex:2];
[self setCenter: [self centerAtIndex:0] + left[0] * SPEED_MOVE atIndex:0];
[self setCenter: [self centerAtIndex:2] + left[2] * SPEED_MOVE atIndex:2];
}
私はv [2]でv [0]を切り替えることがわかりました。 – Burf2000
これはうまくいきませんでした。 – Burf2000