ActionScript 3.0 Design Patterns

Dynamic Selection of Concrete Components and Decorations: A Hybrid Car Dealership | 173

120 {

121 tracker=cars[hybrid].label;

122 switch (tracker)

123 {

124 case "Escape" :

125 carDeal = new Escape( );

126 break;

127

128 case "Mariner" :

129 carDeal = new Mariner( );

130 break;

131

132 case "Prius" :

133 carDeal = new Prius( );

134 break;

135

136 case "Accord" :

137 carDeal = new Accord( );

138 break;

139 }

140 }

141 }

142 }

143 //Select options -- wrap Concrete Component in Decorator

144 private function getOptions ( ):void

145 {

146 var tracker:String;

147 var toy:uint;

148 for (toy=0; toy<checks.length; toy++)

149 {

150 if (checks[toy].selected)

151 {

152 tracker=checks[toy].label;

153 switch (tracker)

154 {

155 case "MP3" :

156 carDeal = new MP3(carDeal);

157 break;

158

159 case "Heated Seats" :

160 carDeal = new HeatedSeats(carDeal);

161 break;

162

163 case "GPS" :

164 carDeal = new GPS(carDeal);

165 break;

166

167 case "Rear View Video" :

168 carDeal = new RearViewVideo(carDeal);

169 }

170 }

171 }

Example 4-48. Deal.as