class Element(object): __metaclass__ = ABCMeta color = "" ORIGINAL_WIDTH = 0 width = 0 ORIGINAL_HEIGHT = 0 height = 0 ORIGINAL_X = 0 startX = 0 ORIGINAL_Y = 0 startY = 0 canvasItem = None physics = None def resetElementForNewGame(self): self.physics = Physics(self.startX, self.startY) self.drawShip() def scale(self, horizontalScale, verticalScale): self.physics.scale(horizontalScale, verticalScale) self.width = self.ORIGINAL_WIDTH * horizontalScale self.height = self.ORIGINAL_HEIGHT * verticalScale self.startX = self.ORIGINAL_X * horizontalScale self.startY = self.ORIGINAL_Y * verticalScale self.drawElement() def executeAction(self, requestedActions): newLocationBasedOnActions = self.calculateNewLocationBasedOnActions(requestedActions) self.physics.updateForNewLocation(newLocationBasedOnActions) self.drawElement() def calculateNewLocationBasedOnActions(self, requestedActions): newLocationBasedOnActions = self.physics.location.getCopy() if requestedActions[Actions.UP]: newLocationBasedOnActions.y -= self.physics.maxSpeed.y if requestedActions[Actions.DOWN]: newLocationBasedOnActions.y += self.physics.maxSpeed.y if requestedActions[Actions.LEFT]: newLocationBasedOnActions.x -= self.physics.maxSpeed.x if requestedActions[Actions.RIGHT]: newLocationBasedOnActions.x += self.physics.maxSpeed.x return newLocationBasedOnActions def drawElement(self): pass
