firka/flutter
firka/flutter
4
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge pull request #1024 from vlidholt/master

Browse Source 
Improvements to demo game
This commit is contained in:
Viktor Lidholt 2015-09-02 15:18:22 -07:00
commit fc6f91c297
3 changed files with 30 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
examples/game/lib/game_demo_node.dart
View File

@ -80,7 +80,6 @@ class GameDemoNode extends NodeWithSize {
PlayerState _playerState;
// Game properties
double _scrollSpeed = 2.0;
double _scroll = 0.0;
int _framesToFire = 0;
@ -95,11 +94,11 @@ class GameDemoNode extends NodeWithSize {
void update(double dt) {
// Scroll the level
_scroll = _level.scroll(_scrollSpeed);
_starField.move(0.0, _scrollSpeed);
_scroll = _level.scroll(_playerState.scrollSpeed);
_starField.move(0.0, _playerState.scrollSpeed);
_background.move(_scrollSpeed * 0.1);
_nebula.move(_scrollSpeed);
_background.move(_playerState.scrollSpeed * 0.1);
_nebula.move(_playerState.scrollSpeed);
// Add objects
addObjects();
@ -226,11 +225,11 @@ class GameDemoNode extends NodeWithSize {
_level.addChild(shot1);
if (_playerState.sideLaserActive) {
Laser shot2 = new Laser(_objectFactory, laserLevel, 0.0);
Laser shot2 = new Laser(_objectFactory, laserLevel, -45.0);
shot2.position = _level.ship.position + new Offset(17.0, -10.0);
_level.addChild(shot2);
Laser shot3 = new Laser(_objectFactory, laserLevel, 180.0);
Laser shot3 = new Laser(_objectFactory, laserLevel, -135.0);
shot3.position = _level.ship.position + new Offset(-17.0, -10.0);
_level.addChild(shot3);
}

1
examples/game/lib/game_objects.dart
View File

@ -462,6 +462,7 @@ enum PowerUpType {
shield,
speedLaser,
sideLaser,
speedBoost,
}
List<PowerUpType> _powerUpTypes = new List.from(PowerUpType.values);

25
examples/game/lib/player_state.dart
View File

@ -30,6 +30,12 @@ class PlayerState extends Node {
int laserLevel = 0;
static const double normalScrollSpeed = 2.0;
double scrollSpeed = normalScrollSpeed;
double _scrollSpeedTarget = normalScrollSpeed;
Sprite _sprtBgScore;
ScoreDisplay _scoreDisplay;
Sprite _sprtBgCoins;
@ -80,12 +86,15 @@ class PlayerState extends Node {
_sideLaserFrames += 300;
} else if (type == PowerUpType.speedLaser) {
_speedLaserFrames += 300;
} else if (type == PowerUpType.speedBoost) {
_speedBoostFrames += 300;
}
}
int _shieldFrames = 0;
bool get shieldActive => _shieldFrames > 0;
bool get shieldDeactivating => _shieldFrames > 0 && _shieldFrames < 60;
bool get shieldActive => _shieldFrames > 0 || _speedBoostFrames > 0;
bool get shieldDeactivating =>
math.max(_shieldFrames, _speedBoostFrames) > 0 && math.max(_shieldFrames, _speedBoostFrames) < 60;
int _sideLaserFrames = 0;
bool get sideLaserActive => _sideLaserFrames > 0;
@ -93,6 +102,9 @@ class PlayerState extends Node {
int _speedLaserFrames = 0;
bool get speedLaserActive => _speedLaserFrames > 0;
int _speedBoostFrames = 0;
bool get speedBoostActive => _speedBoostFrames > 0;
void flashBgSprite(Sprite sprt) {
sprt.actions.stopAll();
ActionTween flash = new ActionTween(
@ -107,6 +119,15 @@ class PlayerState extends Node {
if (_shieldFrames > 0) _shieldFrames--;
if (_sideLaserFrames > 0) _sideLaserFrames--;
if (_speedLaserFrames > 0) _speedLaserFrames--;
if (_speedBoostFrames > 0) _speedBoostFrames--;
// Update speed
if (speedBoostActive)
_scrollSpeedTarget = normalScrollSpeed * 6.0;
else
_scrollSpeedTarget = normalScrollSpeed;
scrollSpeed = GameMath.filter(scrollSpeed, _scrollSpeedTarget, 0.1);
}
}