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CCPhysicsTests.m
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//
// CCPhysicsTests.m
// CCPhysicsTests
//
// Created by Scott Lembcke on 10/11/13.
//
//
#import <XCTest/XCTest.h>
#import "cocos2d.h"
#import "CCPhysics+ObjectiveChipmunk.h"
#import "CCDirector_Private.h"
#import "CCScheduler_Private.h"
#import "AppDelegate.h"
@interface CCScheduler(Test)
-(CCTimer*)fixedUpdateTimer;
@end
@interface CCPhysicsTests : XCTestCase <CCPhysicsCollisionDelegate>
@end
@implementation CCPhysicsTests
- (void)setUp
{
CCDirector *director = [[CCDirector alloc] initWithView:nil];
[CCDirector pushCurrentDirector:director];
}
-(void)tearDown
{
[super tearDown];
[CCDirector popCurrentDirector];
}
static void
TestBasicSequenceHelper(id self, CCPhysicsNode *physicsNode, CCNode *parent, CCNode *node, CCPhysicsBody *body)
{
// Probably not necessary, but doesn't hurt.
CCScene *scene = [CCScene node];
[scene addChild:physicsNode];
// Allow the parent to be the physics node.
if(parent != physicsNode) [physicsNode addChild:parent];
CGPoint position = node.position;
float rotation = node.rotation;
const float accuracy = 1e-4;
// Sanity check.
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Check that setting the position works in this state.
node.position = position;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
[parent addChild:node];
// Check that setting the position works in this state.
node.position = position;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Set the physics body.
// Node's internal transform is still used since the onEnter hasn't happened.
node.physicsBody = body;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Check that setting the position works in this state.
node.position = position;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Force on onEnter to be called.
// Body's transform is now used instead of the node's.
[scene onEnter];
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Check that setting the position works in this state.
node.position = position;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Remove the node and check the position is still correct
[node removeFromParent];
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Check that setting the position works in this state.
node.position = position;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Add back to the physics
[parent addChild:node];
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Check that setting the position works in this state.
node.position = position;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Force onExit
[scene onExit];
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Check that setting the position works in this state.
node.position = position;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Force re-entry to the scene.
[scene onEnter];
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Check that setting the position works in this state.
node.position = position;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Try switching the physics body.
node.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1 andCenter:ccp(1,1)];
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Check that setting the position works in this state.
node.position = position;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Test setting the body to nil.
node.physicsBody = nil;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Check that setting the position works in this state.
node.position = position;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Set back to the original body
node.physicsBody = body;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Check that setting the position works in this state.
node.position = position;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Try setting the body when not added to a scene anymore.
[node removeFromParent];
node.physicsBody = nil;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Check that setting the position works in this state.
node.position = position;
XCTAssertTrue(ccpDistance(node.position, position) < accuracy, @"");
XCTAssertEqualWithAccuracy(node.rotation, rotation, accuracy, @"");
// Terrible things happen when you don't call this due to Cocos2D global variables.
[scene onExit];
}
-(void)testBasicSequences1
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
CCNode *node = [CCNode node];
CCPhysicsBody *body = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
TestBasicSequenceHelper(self, physicsNode, physicsNode, node, body);
}
-(void)testBasicSequences2
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
CCNode *node = [CCNode node];
node.position = ccp(100, 100);
CCPhysicsBody *body = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
TestBasicSequenceHelper(self, physicsNode, physicsNode, node, body);
}
-(void)testBasicSequences3
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
CCNode *node = [CCNode node];
node.contentSize = CGSizeMake(30, 30);
node.anchorPoint = ccp(0.5, 0.5);
node.position = ccp(100, 100);
CCPhysicsBody *body = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
TestBasicSequenceHelper(self, physicsNode, physicsNode, node, body);
}
-(void)testBasicSequences4
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
CCNode *node = [CCNode node];
node.contentSize = CGSizeMake(30, 30);
node.anchorPoint = ccp(0.5, 0.5);
node.position = ccp(100, 100);
node.rotation = 30;
CCPhysicsBody *body = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
TestBasicSequenceHelper(self, physicsNode, physicsNode, node, body);
}
-(void)testBasicSequences5
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
CCNode *node = [CCNode node];
node.contentSize = CGSizeMake(30, 30);
node.anchorPoint = ccp(0.5, 0.5);
node.position = ccp(100, 100);
node.rotation = 30;
node.scaleX = 2.0;
node.scaleY = 3.0;
CCPhysicsBody *body = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
TestBasicSequenceHelper(self, physicsNode, physicsNode, node, body);
}
-(void)testBasicSequences6
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
CCNode *parent = [CCNode node];
CCNode *node = [CCNode node];
node.contentSize = CGSizeMake(30, 30);
node.anchorPoint = ccp(0.5, 0.5);
node.position = ccp(100, 100);
node.rotation = 30;
node.scaleX = 2.0;
node.scaleY = 3.0;
CCPhysicsBody *body = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
TestBasicSequenceHelper(self, physicsNode, parent, node, body);
}
-(void)testBasicSequences7
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
CCNode *parent = [CCNode node];
parent.position = ccp(20, 60);
CCNode *node = [CCNode node];
node.contentSize = CGSizeMake(30, 30);
node.anchorPoint = ccp(0.5, 0.5);
node.position = ccp(100, 100);
node.rotation = 30;
node.scaleX = 2.0;
node.scaleY = 3.0;
CCPhysicsBody *body = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
TestBasicSequenceHelper(self, physicsNode, parent, node, body);
}
-(void)testBasicSequences8
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
CCNode *parent = [CCNode node];
parent.contentSize = CGSizeMake(25, 35);
parent.anchorPoint = ccp(0.3, 0.7);
parent.position = ccp(20, 60);
CCNode *node = [CCNode node];
node.contentSize = CGSizeMake(30, 30);
node.anchorPoint = ccp(0.5, 0.5);
node.position = ccp(100, 100);
node.rotation = 30;
node.scaleX = 2.0;
node.scaleY = 3.0;
CCPhysicsBody *body = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
TestBasicSequenceHelper(self, physicsNode, parent, node, body);
}
-(void)testBasicSequences9
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
CCNode *parent = [CCNode node];
parent.contentSize = CGSizeMake(25, 35);
parent.anchorPoint = ccp(0.3, 0.7);
parent.position = ccp(20, 60);
parent.rotation = -10;
CCNode *node = [CCNode node];
node.contentSize = CGSizeMake(30, 30);
node.anchorPoint = ccp(0.5, 0.5);
node.position = ccp(100, 100);
node.rotation = 35;
node.scaleX = 2.0;
node.scaleY = 3.0;
CCPhysicsBody *body = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
TestBasicSequenceHelper(self, physicsNode, parent, node, body);
}
-(void)testBasicSequences10
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
CCNode *parent = [CCNode node];
parent.contentSize = CGSizeMake(25, 35);
parent.anchorPoint = ccp(0.3, 0.7);
parent.position = ccp(20, 60);
parent.rotation = -15;
parent.scaleX = 1.5;
parent.scaleY = 8.0;
CCNode *node = [CCNode node];
node.contentSize = CGSizeMake(30, 30);
node.anchorPoint = ccp(0,0);
node.position = ccp(100, 100);
node.rotation = 30;
node.scaleX = 2.0;
node.scaleY = 3.0;
CCPhysicsBody *body = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
TestBasicSequenceHelper(self, physicsNode, parent, node, body);
}
-(void)testBasicSequences11
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
CCNode *parent = [CCNode node];
parent.contentSize = CGSizeMake(25, 35);
parent.anchorPoint = ccp(0.3, 0.7);
parent.position = ccp(20, 60);
parent.rotation = -15;
parent.scaleX = 1.5;
parent.scaleY = 8.0;
CCNode *node = [CCNode node];
node.contentSize = CGSizeMake(30, 30);
node.anchorPoint = ccp(0,0);
node.position = ccp(100, 100);
node.rotation = 30;
node.scaleX = 2.0;
node.scaleY = 3.0;
CCPhysicsBody *body = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
body.type = CCPhysicsBodyTypeStatic;
TestBasicSequenceHelper(self, physicsNode, parent, node, body);
}
-(void)testDynamicAnchorPoint
{
cpFloat accuracy = 1e-4;
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
CCNode *node = [CCNode node];
node.contentSize = CGSizeMake(2, 2);
node.anchorPoint = ccp(0.5, 0.5);
XCTAssert(ccpDistance(node.position, CGPointZero) < accuracy, @"");
node.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
node.physicsBody.type = CCPhysicsBodyTypeDynamic;
XCTAssert(ccpDistance(node.position, CGPointZero) < accuracy, @"");
[physicsNode addChild:node];
[physicsNode onEnter];
XCTAssert(ccpDistance(node.position, CGPointZero) < accuracy, @"");
node.rotation = 90;
XCTAssert(ccpDistance(node.position, CGPointZero) < accuracy, @"");
[physicsNode onExit];
}
-(void)testStaticAnchorPoint
{
cpFloat accuracy = 1e-4;
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
CCNode *node = [CCNode node];
node.contentSize = CGSizeMake(2, 2);
node.anchorPoint = ccp(0.5, 0.5);
XCTAssert(ccpDistance(node.position, CGPointZero) < accuracy, @"");
node.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
node.physicsBody.type = CCPhysicsBodyTypeStatic;
XCTAssert(ccpDistance(node.position, CGPointZero) < accuracy, @"");
[physicsNode addChild:node];
[physicsNode onEnter];
XCTAssert(ccpDistance(node.position, CGPointZero) < accuracy, @"");
node.rotation = 90;
XCTAssert(ccpDistance(node.position, CGPointZero) < accuracy, @"");
[physicsNode onExit];
}
-(void)testCollisionGroups
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
NSString *noCollide = @"nocollide";
CCNode *node1 = [CCNode node];
node1.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
node1.physicsBody.collisionGroup = noCollide;
[physicsNode addChild:node1];
CCNode *node2 = [CCNode node];
node2.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
node2.physicsBody.collisionGroup = noCollide;
[physicsNode addChild:node2];
// Force entering the scene to set up the physics objects.
[physicsNode onEnter];
// Step the physics for a while.
for(int i=0; i<100; i++){
[physicsNode fixedUpdate:1.0/60.0];
}
// Both nodes should be at (0, 0)
XCTAssertTrue(CGPointEqualToPoint(node1.position, CGPointZero) , @"");
XCTAssertTrue(CGPointEqualToPoint(node2.position, CGPointZero) , @"");
[physicsNode onExit];
}
-(void)testAffectedByGravity
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
physicsNode.gravity = ccp(0, -100);
NSString *noCollide = @"nocollide";
CCNode *node1 = [CCNode node];
node1.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
node1.physicsBody.collisionGroup = noCollide;
[physicsNode addChild:node1];
CCNode *node2 = [CCNode node];
node2.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
node2.physicsBody.collisionGroup = noCollide;
node2.physicsBody.affectedByGravity = NO;
[physicsNode addChild:node2];
// Force entering the scene to set up the physics objects.
[physicsNode onEnter];
// Step the physics for a while.
for(int i=0; i<100; i++){
[physicsNode fixedUpdate:1.0/60.0];
}
// Node1 should move down due to gravity
XCTAssertTrue(node1.position.y < 0.0, @"");
// Node2 should stay at (0, 0)
XCTAssertTrue(node2.position.y == 0.0, @"");
[physicsNode onExit];
}
-(void)testAllowsRotation
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
[physicsNode onEnter];
{
// Regular body.
CCNode *node = [CCNode node];
node.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
XCTAssert(node.physicsBody.allowsRotation == YES, @"");
[physicsNode addChild:node];
XCTAssert(node.physicsBody.allowsRotation == YES, @"");
XCTAssert(node.physicsBody.body.moment < INFINITY, @"");
}{
// Set before adding.
CCNode *node = [CCNode node];
node.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
node.physicsBody.allowsRotation = NO;
XCTAssert(node.physicsBody.allowsRotation == NO, @"");
[physicsNode addChild:node];
XCTAssert(node.physicsBody.allowsRotation == NO, @"");
XCTAssert(node.physicsBody.body.moment == INFINITY, @"");
}{
// Set after adding.
CCNode *node = [CCNode node];
node.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
XCTAssert(node.physicsBody.allowsRotation == YES, @"");
[physicsNode addChild:node];
XCTAssert(node.physicsBody.allowsRotation == YES, @"");
node.physicsBody.allowsRotation = NO;
XCTAssert(node.physicsBody.allowsRotation == NO, @"");
XCTAssert(node.physicsBody.body.moment == INFINITY, @"");
}{
// Set and reverted before adding.
CCNode *node = [CCNode node];
node.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
node.physicsBody.allowsRotation = NO;
XCTAssert(node.physicsBody.allowsRotation == NO, @"");
node.physicsBody.allowsRotation = YES;
XCTAssert(node.physicsBody.allowsRotation == YES, @"");
[physicsNode addChild:node];
XCTAssert(node.physicsBody.allowsRotation == YES, @"");
XCTAssert(node.physicsBody.body.moment < INFINITY, @"");
}{
// Set before and reverted after adding.
CCNode *node = [CCNode node];
node.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
node.physicsBody.allowsRotation = NO;
XCTAssert(node.physicsBody.allowsRotation == NO, @"");
[physicsNode addChild:node];
XCTAssert(node.physicsBody.allowsRotation == NO, @"");
node.physicsBody.allowsRotation = YES;
XCTAssert(node.physicsBody.allowsRotation == YES, @"");
XCTAssert(node.physicsBody.body.moment < INFINITY, @"");
}{
// Set reverted after adding.
CCNode *node = [CCNode node];
node.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
XCTAssert(node.physicsBody.allowsRotation == YES, @"");
[physicsNode addChild:node];
XCTAssert(node.physicsBody.allowsRotation == YES, @"");
node.physicsBody.allowsRotation = NO;
XCTAssert(node.physicsBody.allowsRotation == NO, @"");
node.physicsBody.allowsRotation = YES;
XCTAssert(node.physicsBody.allowsRotation == YES, @"");
XCTAssert(node.physicsBody.body.moment < INFINITY, @"");
}
[physicsNode onExit];
}
-(void)testBodyType
{
CGPoint points[3] = {};
// Regular bodies should default to being dynamic.
XCTAssertEqual([CCPhysicsBody bodyWithCircleOfRadius:0 andCenter:CGPointZero].type, CCPhysicsBodyTypeDynamic, @"");
XCTAssertEqual([CCPhysicsBody bodyWithPillFrom:ccp(0, 1) to:ccp(1, 0) cornerRadius:0].type, CCPhysicsBodyTypeDynamic, @"");
XCTAssertEqual([CCPhysicsBody bodyWithPolygonFromPoints:points count:3 cornerRadius:0].type, CCPhysicsBodyTypeDynamic, @"");
XCTAssertEqual([CCPhysicsBody bodyWithRect:CGRectZero cornerRadius:0].type, CCPhysicsBodyTypeDynamic, @"");
// Polyline bodies should default to being static bodies.
XCTAssertEqual([CCPhysicsBody bodyWithPolylineFromRect:CGRectZero cornerRadius:0].type, CCPhysicsBodyTypeStatic, @"");
XCTAssertEqual([CCPhysicsBody bodyWithPolylineFromPoints:points count:3 cornerRadius:0 looped:YES].type, CCPhysicsBodyTypeStatic, @"");
// Test body type setters
CCPhysicsBody *body = [CCPhysicsBody bodyWithCircleOfRadius:0 andCenter:CGPointZero];
body.type = CCPhysicsBodyTypeStatic;
XCTAssertEqual(body.type, CCPhysicsBodyTypeStatic, @"");
XCTAssertEqual(body.body.type, CP_BODY_TYPE_STATIC, @"");
// body.type = CCPhysicsBodyTypeKinematic;
// XCTAssertEqual(body.type, CCPhysicsBodyTypeKinematic, @"");
// XCTAssertEqual(body.body.type, CP_BODY_TYPE_KINEMATIC, @"");
body.type = CCPhysicsBodyTypeDynamic;
XCTAssertEqual(body.type, CCPhysicsBodyTypeDynamic, @"");
XCTAssertEqual(body.body.type, CP_BODY_TYPE_DYNAMIC, @"");
}
-(void)testBreakingJoints
{
CCPhysicsNode *physics = [CCPhysicsNode node];
physics.gravity = ccp(0, -100);
CGRect rect = CGRectMake(0, 0, 50, 50);
CCPhysicsJoint *joint1, *joint2, *joint3, *joint4;
// These should break.
{
CCNode *node1 = [CCNode node];
node1.position = ccp(100, 200);
CCPhysicsBody *body1 = node1.physicsBody = [CCPhysicsBody bodyWithRect:rect cornerRadius:0.0];
body1.type = CCPhysicsBodyTypeStatic;
[physics addChild:node1];
CCNode *node2 = [CCNode node];
node2.position = ccp(100, 100);
CCPhysicsBody *body2 = node2.physicsBody = [CCPhysicsBody bodyWithRect:rect cornerRadius:0.0];
[physics addChild:node2];
joint1 = [CCPhysicsJoint connectedPivotJointWithBodyA:body1 bodyB:body2 anchorA:ccp(rect.size.width/2.0, -rect.size.height/4.0)];
joint1.breakingForce = -physics.gravity.y*body2.mass*0.9;
}{
CCNode *node1 = [CCNode node];
node1.position = ccp(200, 200);
CCPhysicsBody *body1 = node1.physicsBody = [CCPhysicsBody bodyWithRect:rect cornerRadius:0.0];
body1.type = CCPhysicsBodyTypeStatic;
[physics addChild:node1];
CCNode *node2 = [CCNode node];
node2.position = ccp(200, 100);
CCPhysicsBody *body2 = node2.physicsBody = [CCPhysicsBody bodyWithRect:rect cornerRadius:0.0];
[physics addChild:node2];
joint2 = [CCPhysicsJoint connectedDistanceJointWithBodyA:body1 bodyB:body2 anchorA:ccp(rect.size.width/2.0, 0.0) anchorB:ccp(rect.size.width/2.0, rect.size.height)];
joint2.breakingForce = -physics.gravity.y*body2.mass*0.9;
}
// These shouldn't
{
CCNode *node1 = [CCNode node];
node1.position = ccp(300, 200);
CCPhysicsBody *body1 = node1.physicsBody = [CCPhysicsBody bodyWithRect:rect cornerRadius:0.0];
body1.type = CCPhysicsBodyTypeStatic;
[physics addChild:node1];
CCNode *node2 = [CCNode node];
node2.position = ccp(300, 100);
CCPhysicsBody *body2 = node2.physicsBody = [CCPhysicsBody bodyWithRect:rect cornerRadius:0.0];
[physics addChild:node2];
joint3 = [CCPhysicsJoint connectedPivotJointWithBodyA:body1 bodyB:body2 anchorA:ccp(rect.size.width/2.0, -rect.size.height/4.0)];
joint3.breakingForce = -physics.gravity.y*body2.mass*1.1;
}{
CCNode *node1 = [CCNode node];
node1.position = ccp(400, 200);
CCPhysicsBody *body1 = node1.physicsBody = [CCPhysicsBody bodyWithRect:rect cornerRadius:0.0];
body1.type = CCPhysicsBodyTypeStatic;
[physics addChild:node1];
CCNode *node2 = [CCNode node];
node2.position = ccp(400, 100);
CCPhysicsBody *body2 = node2.physicsBody = [CCPhysicsBody bodyWithRect:rect cornerRadius:0.0];
[physics addChild:node2];
joint4 = [CCPhysicsJoint connectedDistanceJointWithBodyA:body1 bodyB:body2 anchorA:ccp(rect.size.width/2.0, 0.0) anchorB:ccp(rect.size.width/2.0, rect.size.height)];
joint4.breakingForce = -physics.gravity.y*body2.mass*1.1;
}
[physics onEnter];
for(int i=0; i<100; i++){
[physics fixedUpdate:1.0/60.0];
}
XCTAssert(!joint1.valid, @"");
XCTAssert(!joint2.valid, @"");
XCTAssert(joint3.valid, @"");
XCTAssert(joint4.valid, @"");
[physics onExit];
}
-(BOOL)ccPhysicsCollisionBegin:(CCPhysicsCollisionPair *)pair theStaticOne:(CCNode *)nodeA theDynamicOne:(CCNode *)nodeB
{
nodeB.physicsBody.type = CCPhysicsBodyTypeStatic;
// TODO not sure if we should hide the deferred nature or not... Hrm.
XCTAssertEqual(nodeB.physicsBody.type, CCPhysicsBodyTypeDynamic, @"");
return FALSE;
}
-(void)testBodyTypeCollisions
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
physicsNode.collisionDelegate = self;
physicsNode.gravity = ccp(0, -100);
CCNode *node1 = [CCNode node];
node1.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
node1.physicsBody.type = CCPhysicsBodyTypeStatic;
node1.physicsBody.collisionType = @"theStaticOne";
[physicsNode addChild:node1];
CCNode *node2 = [CCNode node];
node2.position = ccp(0, 10);
node2.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
node2.physicsBody.type = CCPhysicsBodyTypeDynamic;
node2.physicsBody.collisionType = @"theDynamicOne";
[physicsNode addChild:node2];
// Force entering the scene to set up the physics objects.
[physicsNode onEnter];
// Step the physics for a while.
for(int i=0; i<100; i++){
[physicsNode fixedUpdate:1.0/100.0];
}
XCTAssertEqual(node2.physicsBody.type, CCPhysicsBodyTypeStatic, @"");
[physicsNode onExit];
}
-(void)testBodyEachCollisionPair
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
physicsNode.gravity = ccp(0, -100);
CCNode *node1 = [CCNode node];
node1.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
node1.physicsBody.type = CCPhysicsBodyTypeStatic;
[physicsNode addChild:node1];
CCNode *node2 = [CCNode node];
node2.position = ccp(0, 10);
node2.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:1.0 andCenter:CGPointZero];
node2.physicsBody.type = CCPhysicsBodyTypeDynamic;
[physicsNode addChild:node2];
// Force entering the scene to set up the physics objects.
[physicsNode onEnter];
// Step the physics for a while.
for(int i=0; i<100; i++){
[physicsNode fixedUpdate:1.0/100.0];
}
__block BOOL check = NO;
[node1.physicsBody eachCollisionPair:^(CCPhysicsCollisionPair *pair) {
CCPhysicsShape *a, *b; [pair shapeA:&a shapeB:&b];
check = (
(a.node == node1 && b.node == node2) ||
(b.node == node1 && a.node == node2)
);
}];
XCTAssert(check, @"The objects should have had a collision pair listed between them.");
[physicsNode onExit];
}
//Focusing on Position.
-(void)testKineticBodyBasic1
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
physicsNode.collisionDelegate = self;
physicsNode.gravity = ccp(0, 0);
CGPoint node0Pos = ccp(100.0f,0.0f);
CCNode *node0 = [CCNode node];
node0.position = node0Pos;
node0.name = @"node0";
[physicsNode addChild:node0];
CCPhysicsBody * body1 = [CCPhysicsBody bodyWithRect:CGRectMake(0, 0, 60, 20) cornerRadius:0];
CGPoint node1Pos = ccp(-25, 0);
CCNode *node1 = [CCNode node];
node1.physicsBody = body1;
node1.physicsBody.type = CCPhysicsBodyTypeStatic;
node1.physicsBody.collisionType = @"theStaticOne";
node1.name = @"node1";
node1.position = node1Pos;
node1.contentSize = CGSizeMake(60, 20);
node1.anchorPoint = ccp(0.5f,0.5f);
[node0 addChild:node1];
// Force entering the scene to set up the physics objects.
[physicsNode onEnter];
// Step the physics for a while.
const int KineticCount = 50;
//Test translation.
for(int i=0; i<100; i++)
{
if(i < KineticCount)
{
node0.position = ccp(node0Pos.x + (i + 1), node0Pos.y);
}
[physicsNode fixedUpdate:1.0/100.0];
if(i >= KineticCount)
{
XCTAssertTrue(body1.type != CCPhysicsBodyTypeKinematic,@"Should not be kinetic now.");
XCTAssertTrue(ccpLength(body1.velocity) == 0.0f ,@"Should not have velocity.");
}
else
{
XCTAssertTrue(body1.type == CCPhysicsBodyTypeKinematic, @"Should be kinetic now");
XCTAssertTrue(ccpLength(body1.velocity) > 0.0f ,@"Should have velocity.");
XCTAssertTrue(body1.absolutePosition.x == (45.0f + (i + 1)), @"should be this value");
}
}
}
//Focusing on rotation.
-(void)testKineticBodyBasic2
{
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
physicsNode.collisionDelegate = self;
physicsNode.gravity = ccp(0, 0);
CGPoint node0Pos = ccp(100.0f,0.0f);
CCNode *node0 = [CCNode node];
node0.position = node0Pos;
node0.name = @"node0";
[physicsNode addChild:node0];
CCPhysicsBody * body1 = [CCPhysicsBody bodyWithRect:CGRectMake(0, 0, 60, 20) cornerRadius:0];
CGPoint node1Pos = ccp(-25, 0);
CCNode *node1 = [CCNode node];
node1.physicsBody = body1;
node1.physicsBody.type = CCPhysicsBodyTypeStatic;
node1.physicsBody.collisionType = @"theStaticOne";
node1.name = @"node1";
node1.position = node1Pos;
node1.contentSize = CGSizeMake(60, 20);
node1.anchorPoint = ccp(0.5f,0.5f);
[node0 addChild:node1];
// Force entering the scene to set up the physics objects.
[physicsNode onEnter];
// Step the physics for a while.
const int KineticCount = 50;
//Test translation.
for(int i=0; i<100; i++)
{
if(i < KineticCount)
{
node0.rotation = (i + 1) * 1.0f;
node1.rotation = (i + 1) * 1.0f;
}
[physicsNode fixedUpdate:1.0/100.0];
if(i >= KineticCount)
{
XCTAssertTrue(body1.type != CCPhysicsBodyTypeKinematic, @"Should not be kinetic now.");
}
else
{
XCTAssertTrue(body1.type == CCPhysicsBodyTypeKinematic, @"Should be kinetic now");
XCTAssertEqualWithAccuracy(-CC_RADIANS_TO_DEGREES(body1.absoluteRadians),(i + 1) * 2.0f,0.01f, @"Should be 2x rotation because of parent.");
}
}
//TODO on exit
//TODO if node0->node1->node2->node3 and you detatch node1,that node0 can get unobservered.
}
-(void)testKineticNodeActionsBasic1
{
CCScene *scene = [CCScene node];
CCPhysicsNode *physicsNode = [CCPhysicsNode node];
physicsNode.collisionDelegate = self;
physicsNode.gravity = ccp(0, 0);
CCPhysicsBody * body1 = [CCPhysicsBody bodyWithRect:CGRectMake(0, 0, 60, 20) cornerRadius:0];
CGPoint node1Pos = ccp(0, 0);
CCNode *node1 = [CCNode node];
node1.physicsBody = body1;
node1.position = node1Pos;
[physicsNode addChild:node1];
// Force entering the scene to set up the physics objects.
[scene addChild:physicsNode];
[scene onEnter];
[node1 runAction:[CCActionMoveBy actionWithDuration:10 position:ccp(100, 0)]];
CCScheduler * scheduler = physicsNode.scene.scheduler;
scheduler.actionsRunInFixedMode = YES;
scheduler.fixedUpdateInterval = 0.1f;
[scheduler update:0.10f]; // first tick is always ignored, the action is not run.
[scheduler update:0.10f]; // second tick runs the action at time zero, regardless of the delta time.
const float accuracy = 1e-3;
//test actions are fixed.
for(int i = 0; i < 100; i++)
{
float desired = (float)i * 0.1f * 100.0f/10.0f;
XCTAssertEqualWithAccuracy(body1.absolutePosition.x, desired, accuracy, @"Not in the right position");
[scheduler update:0.10f];
}
}
-(void)testNonPhysicActionsAdvanced1
{
// Nested non-physics nodes both with move actions.
CCScene *scene = [CCScene node];
CGPoint node0Pos = ccp(0.0f,0.0f);
CCNode *node0 = [CCNode node];
node0.position = node0Pos;
node0.name = @"node0";
CGPoint node1Pos = ccp(0, 0);
CCNode *node1 = [CCNode node];
node1.name = @"node1";
node1.position = node1Pos;
[node0 addChild:node1];
// Force entering the scene to set up the physics objects.
[scene addChild:node0];
[scene onEnter];
CCScheduler * scheduler = scene.scheduler;
scheduler.actionsRunInFixedMode = YES;
scheduler.fixedUpdateInterval = 0.1f;
[node1 runAction:[CCActionMoveBy actionWithDuration:10 position:ccp(100, 0)]];
[node0 runAction:[CCActionMoveBy actionWithDuration:10 position:ccp(100, 0)]];
[scheduler update:0.10f]; // first tick is always ignored, the action is not run.
[scheduler update:0.10f]; // second tick runs the action at time zero, regardless of the delta time.
const float accuracy = 1e-3;
//test actions are fixed.
for(int i = 0; i < 10; i++)
{
float desired = (float)i * 0.1f * 100.0f/10.0f + (float)i * 0.1f * 200.0f/10.0f;
// NSLog(@"node1.position.x= %0.2f desired = %0.2f", [node1 convertToWorldSpace:node0.position].x, desired);
float absoluteX = [node1 convertToWorldSpace:node0.position].x;
XCTAssertEqualWithAccuracy(absoluteX, desired, accuracy, @"Not in the right position");
[scheduler update:0.10f];
}
}
//When a node graph that is the child of a physics node is added (onEnter) ensure all the actions
//it subsuquently posesses are changed to fixed scheduled.
-(void)testKineticNodeActionsAdvanced1