ヘディングシュートするiPhoneアプリのサンプルコードを描いてみます。
#import “ViewController.h”
@import SceneKit;
@interface ViewController ()
@property (nonatomic, weak) SCNView *sceneView;
@end
@implementation ViewController
– (void)viewDidLoad {
[super viewDidLoad];
[self setupScene];
[self createGoal];
[self createPlayer];
[self createBall];
[self createCamera];
}
– (void)setupScene {
SCNView *sv = [[SCNView alloc] initWithFrame:self.view.bounds];
sv.scene = [SCNScene scene];
sv.allowsCameraControl = YES;
sv.backgroundColor = [UIColor blackColor];
[self.view addSubview:sv];
self.sceneView = sv;
}
– (void)createGoal {
SCNBox *ground = [SCNBox boxWithWidth:30 height:1 length:30 chamferRadius:0];
ground.firstMaterial.diffuse.contents = [UIColor greenColor];
SCNNode *groundNode = [SCNNode nodeWithGeometry:ground];
groundNode.physicsBody = [SCNPhysicsBody staticBody];
[self.sceneView.scene.rootNode addChildNode:groundNode];
SCNBox *box = [SCNBox boxWithWidth:12 height:1 length:5 chamferRadius:0];
box.firstMaterial.diffuse.contents = [UIColor whiteColor];
SCNNode *boxNode = [SCNNode nodeWithGeometry:box];
boxNode.position = SCNVector3Make(0, 5, –15);
boxNode.physicsBody = [SCNPhysicsBody staticBody];
[self.sceneView.scene.rootNode addChildNode:boxNode];
for (int i=0; i<2; i++) {
SCNBox *box = [SCNBox boxWithWidth:1 height:5 length:5 chamferRadius:0];
box.firstMaterial.diffuse.contents = [UIColor whiteColor];
SCNNode *boxNode = [SCNNode nodeWithGeometry:box];
boxNode.position = SCNVector3Make(i ? –6 : 6, 2.5, –15);
boxNode.physicsBody = [SCNPhysicsBody staticBody];
[self.sceneView.scene.rootNode addChildNode:boxNode];
}
}
– (void)createBall {
SCNSphere *ball = [SCNSphere sphereWithRadius:1];
ball.firstMaterial.diffuse.contents = [UIColor whiteColor];
SCNNode *ballNode = [SCNNode nodeWithGeometry:ball];
ballNode.position = SCNVector3Make(12, 1, –12);
ballNode.physicsBody = [SCNPhysicsBody dynamicBody];
ballNode.physicsBody.mass = 0.1;
[self.sceneView.scene.rootNode addChildNode:ballNode];
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[ballNode.physicsBody applyForce:SCNVector3Make(-1.1, 0.9, 1) impulse:YES];
});
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(5.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[ballNode removeFromParentNode];
[self createBall];
});
}
– (void)createPlayer {
SCNNode *player = [SCNNode node];
player.name = @”player”;
player.position = SCNVector3Make(-2, 2, 5);
[self.sceneView.scene.rootNode addChildNode:player];
SCNSphere *head = [SCNSphere sphereWithRadius:1];
head.firstMaterial.diffuse.contents = [UIColor purpleColor];
SCNNode *headNode = [SCNNode nodeWithGeometry:head];
headNode.position = SCNVector3Make(0, 1, 0);
[player addChildNode:headNode];
SCNCone *body = [SCNCone coneWithTopRadius:1.2 bottomRadius:0.2 height:1];
body.firstMaterial.diffuse.contents = [UIColor purpleColor];
SCNNode *bodyNode = [SCNNode nodeWithGeometry:body];
bodyNode.position = SCNVector3Make(0, –1, 0);
[player addChildNode:bodyNode];
}
– (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
SCNNode *player = [self.sceneView.scene.rootNode childNodeWithName:@”player” recursively:NO];
player.physicsBody = [SCNPhysicsBody dynamicBody];
player.physicsBody.angularDamping = 0.9;
player.physicsBody.damping = 0.8;
[player.physicsBody applyForce:SCNVector3Make(1, 8, –15) atPosition:SCNVector3Make(0, 1, –1) impulse:YES];
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[player removeFromParentNode];
[self createPlayer];
});
}
– (void)createCamera {
SCNNode *camera = [SCNNode node];
camera.camera = [SCNCamera camera];
camera.position = SCNVector3Make(0, 5, 10);
camera.rotation = SCNVector4Make(1, 0, 0, –0.2);
[self.sceneView.scene.rootNode addChildNode:camera];
}
@end