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1 part of game; | 1 part of game; |
2 | 2 |
3 const double _steeringThreshold = 20.0; | 3 const double _steeringThreshold = 0.0; |
4 const double _steeringMax = 50.0; | 4 const double _steeringMax = 150.0; |
5 | 5 |
6 class GameBox extends SpriteBox { | 6 class GameDemoBox extends SpriteBox { |
7 | 7 |
8 GameBox(GameWorld game) : super(game, SpriteBoxTransformMode.letterbox); | 8 GameDemoBox(GameDemoWorld game) : super(game, SpriteBoxTransformMode.letterbox
); |
9 | 9 |
10 GameWorld get _gameWorld => this.rootNode; | 10 GameDemoWorld get _gameWorld => this.rootNode; |
11 | 11 |
12 // Handle pointers | 12 // Handle pointers |
13 int _firstPointer = -1; | 13 int _firstPointer = -1; |
14 int _secondPointer = -1; | 14 int _secondPointer = -1; |
15 Vector2 _firstPointerDownPos; | 15 Point _firstPointerDownPos; |
16 | 16 |
17 void handleEvent(Event event, BoxHitTestEntry entry) { | 17 void handleEvent(Event event, BoxHitTestEntry entry) { |
18 if (event is PointerEvent) { | 18 if (event is PointerEvent) { |
19 Vector2 pointerPos = new Vector2(event.x, event.y); | 19 Point pointerPos = new Point(event.x, event.y); |
20 int pointer = event.pointer; | 20 int pointer = event.pointer; |
21 | 21 |
22 switch (event.type) { | 22 switch (event.type) { |
23 case 'pointerdown': | 23 case 'pointerdown': |
24 if (_firstPointer == -1) { | 24 if (_firstPointer == -1) { |
25 // Assign the first pointer | 25 // Assign the first pointer |
26 _firstPointer = pointer; | 26 _firstPointer = pointer; |
27 _firstPointerDownPos = pointerPos; | 27 _firstPointerDownPos = pointerPos; |
28 } | 28 } |
29 else if (_secondPointer == -1) { | 29 else if (_secondPointer == -1) { |
30 // Assign second pointer | 30 // Assign second pointer |
31 _secondPointer = pointer; | 31 _secondPointer = pointer; |
32 _gameWorld.controlThrust(1.0); | 32 _gameWorld.controlFire(); |
33 } | 33 } |
34 else { | 34 else { |
35 // There is a pointer used for steering, let's fire instead | 35 // There is a pointer used for steering, let's fire instead |
36 _gameWorld.controlFire(); | 36 _gameWorld.controlFire(); |
37 } | 37 } |
38 break; | 38 break; |
39 case 'pointermove': | 39 case 'pointermove': |
40 if (pointer == _firstPointer) { | 40 if (pointer == _firstPointer) { |
41 // Handle turning control | 41 // Handle turning control |
42 double deltaX = pointerPos[0] - _firstPointerDownPos[0]; | 42 double joystickX = 0.0; |
| 43 double deltaX = pointerPos.x - _firstPointerDownPos.x; |
43 if (deltaX > _steeringThreshold || deltaX < -_steeringThreshold) { | 44 if (deltaX > _steeringThreshold || deltaX < -_steeringThreshold) { |
44 double turnForce = (deltaX - _steeringThreshold)/(_steeringMax - _
steeringThreshold); | 45 joystickX = (deltaX - _steeringThreshold)/(_steeringMax - _steerin
gThreshold); |
45 if (turnForce > 1.0) turnForce = 1.0; | 46 if (joystickX > 1.0) joystickX = 1.0; |
46 if (turnForce < -1.0) turnForce = -1.0; | 47 if (joystickX < -1.0) joystickX = -1.0; |
47 _gameWorld.controlSteering(turnForce); | |
48 print("steering: $turnForce"); | |
49 } | 48 } |
| 49 |
| 50 double joystickY = 0.0; |
| 51 double deltaY = pointerPos.y - _firstPointerDownPos.y; |
| 52 if (deltaY > _steeringThreshold || deltaY < -_steeringThreshold) { |
| 53 joystickY = (deltaY - _steeringThreshold)/(_steeringMax - _steerin
gThreshold); |
| 54 if (joystickY > 1.0) joystickY = 1.0; |
| 55 if (joystickY < -1.0) joystickY = -1.0; |
| 56 } |
| 57 |
| 58 _gameWorld.controlSteering(joystickX, joystickY); |
50 } | 59 } |
51 break; | 60 break; |
52 case 'pointerup': | 61 case 'pointerup': |
53 case 'pointercancel': | 62 case 'pointercancel': |
54 if (pointer == _firstPointer) { | 63 if (pointer == _firstPointer) { |
55 // Un-assign the first pointer | 64 // Un-assign the first pointer |
56 _firstPointer = -1; | 65 _firstPointer = -1; |
57 _firstPointerDownPos = null; | 66 _firstPointerDownPos = null; |
58 _gameWorld.controlSteering(null); | 67 _gameWorld.controlSteering(0.0, 0.0); |
59 } | 68 } |
60 else if (pointer == _secondPointer) { | 69 else if (pointer == _secondPointer) { |
61 _secondPointer = -1; | 70 _secondPointer = -1; |
62 _gameWorld.controlThrust(null); | 71 _gameWorld.controlFire(); |
63 } | 72 } |
64 break; | 73 break; |
65 default: | 74 default: |
66 break; | 75 break; |
67 } | 76 } |
68 } | 77 } |
69 } | 78 } |
70 | 79 |
71 } | 80 } |
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