Little Red Car (lines 147-187)
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147 ! >CA There are two exceptions to the ordinary before/after rules, for
148 ! vehicles and things which can be pushed from place to place: this car
149 ! demonstrates both at once.
150 !
151 ! The "before" for PushDir (push in a named direction) must call
152 ! AllowPushDir and then return true to signify that the push is legal.
153 !
154 ! The "before" for Go must return true to signify that travelling in
155 ! the object is legal. (Note that it must also be enterable.)
156 ! ----------------------------------------------------------------------------
157
158 Object -> car "little red car"
159 with name "little" "red" "car" "kar1",
160 description "Large enough to sit inside. Among the controls is a
161 prominent on/off switch. The numberplate is KAR 1.",
162 when_on "The red car sits here, its engine still running.",
163 when_off "A little red car is parked here.",
164 before
165 [; PushDir: AllowPushDir(); rtrue;
166 Go: if (car has on) { Achieved(1); "Brmm! Brmm!"; }
167 print "(The ignition is off at the moment.)^";
168 ],
169 after
170 [; PushDir: "The car rolls very slowly as you push it.";
171 ],
172 has switchable enterable static container open;
173
174 Object -> -> "small note"
175 with name "small" "note",
176 description
177 " !!!! FROBOZZ MAGIC CAR COMPANY !!!!^
178 ^Hello, Driver!^
179 ^Instructions for use:^
180 ^Switch on the ignition and off you go!^
181 ^Warranty:^
182 ^This car is guaranteed against all defects for a period of
183 76 milliseconds from date of purchase or until used,
184 whichever comes first.^
185 ^Good Luck!";
186
187 ! ----------------------------------------------------------------------------
Last updated 23 June 2004.
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