![]() ![]() The R/G/B triggers could represent Red, Green, or Blue The four states in our diagram could represent fourĬaves, or four islands, or four stations in an underground tube system. We can catch - to trigger the transition to the next cave, or the next island. We can exit from, or passages in the caves, or directions that we can go, or ships that We have a limited number of choices (these are the inputs to the FSM) - perhaps doors that That is part of a bigger system of caves, or on an island in a bigger system of islands. When it gets an additional coin in the “two” state it would transition back to “zero” state,īut attached to that transition we’d want an additional “dispense chocolate” action.Ī number of games involve being somewhere (i.e. It might have three cyclic states representing the monetary balance (zero, one, two). There were no additional actions (besides state transitions)Īs another example, suppose a vending machine needs three coins to buy a chocolate: After every transition we arrived inĪ new state. Our earlier traffic light FSM can now be described in terms of this definition: Whenever a particular state is entered,.Whenever a particular transition occurs between one state and another,.A set of additional actions that can occur.Īctions can be triggered in one of three situations:.For each state that the machine can be in, andįor each possible input, this mechanism describes what the next state will be. (We’ll call these FSM events,īecause we don’t want to confuse them with C# events.) A set of possible inputs (or events) to the machine.A set of states that the machine can be in.A DARK, FOREBODING PASSAGE EXITS TO THE SOUTH.Definition of a Finite State Machine (FSM)Īn FSM is described by a few components (all finite): OWN, WHICH LENDS AN ADDITIONAL INFERNAL SPLENDOR TO THE ALREADY THE FAR RIGHT WALL IS AFLAME WITH AN INCANDESCENCE OF ITS THE RIGHT, AN IMMENSE GEYSER OF BLISTERING STEAM ERUPTS CONTINUOUSLYįROM A BARREN ISLAND IN THE CENTER OF A SULFUROUS LAKE, WHICH BUBBLES GORGE, AND PLUMMETS INTO A BOTTOMLESS PIT FAR OFF TO YOUR LEFT. AN IMMENSE RIVER OF FIREĬRASHES OUT FROM THE DEPTHS OF THE VOLCANO, BURNS ITS WAY THROUGH THE GORGE, FILLED WITH A BIZARRE CHAOS OF TORTURED ROCK WHICH SEEMS TO ![]() LIGHT INTO SINISTER APPARITIONS UPON THE WALLS. EMBEDDED IN THE JAGGED ROOF FAR OVERHEAD ARE MYRIAD TWISTEDįORMATIONS COMPOSED OF PURE WHITE ALABASTER, WHICH SCATTER THE MURKY THE TOUCH, AND THE THUNDERING OF THE VOLCANO DROWNS OUT ALL OTHER SPARKS OF ASH AND A HEAVY SMELL OF BRIMSTONE. THE GLOWING ROCK FILLS THEįARTHEST REACHES OF THE CAVERN WITH A BLOOD-RED GLARE, GIVING EVERY. OUT, CASCADING BACK DOWN INTO THE DEPTHS. FAR BELOW YOU IS ANĪCTIVE VOLCANO, FROM WHICH GREAT GOUTS OF MOLTEN LAVA COME SURGING ![]() YOU ARE ON THE EDGE OF A BREATH-TAKING VIEW. SMALL WINDOW CAN BE SEEN IN EITHER WALL, SOME FIFTY FEET UP. (THE MIRROR IS OBVIOUSLY PROVIDEDįOR THE USE OF THE DWARVES, WHO AS YOU KNOW, ARE EXTREMELY VAIN.) A SUSPENDED FROM SOME UNSEEN POINT FARĪBOVE YOU, AN ENORMOUS TWO-SIDED MIRROR IS HANGING PARALLEL TO AND THE FLOOR ISĬOVERED BY WHITE MIST SEEPING IN FROM THE NORTH. YOU ARE IN A NORTH/SOUTH CANYON ABOUT 25 FEET ACROSS. YOU ARE IN A MAZE OF TWISTY LITTLE PASSAGES, ALL ALIKE. ![]() YOU ARE IN A MAZE OF LITTLE TWISTY PASSAGES, ALL DIFFERENT. YOU ARE IN A MAZE OF LITTLE TWISTING PASSAGES, ALL DIFFERENT. YOU ARE IN A LITTLE TWISTY MAZE OF PASSAGES, ALL DIFFERENT. YOU ARE IN A TWISTY MAZE OF LITTLE PASSAGES, ALL DIFFERENT. YOU ARE IN A TWISTY LITTLE MAZE OF PASSAGES, ALL DIFFERENT. YOU ARE IN A TWISTING LITTLE MAZE OF PASSAGES, ALL DIFFERENT. YOU ARE IN A TWISTING MAZE OF LITTLE PASSAGES, ALL DIFFERENT. YOU ARE IN A LITTLE MAZE OF TWISTY PASSAGES, ALL DIFFERENT. YOU ARE IN A MAZE OF TWISTING LITTLE PASSAGES, ALL DIFFERENT. YOU ARE IN A LITTLE MAZE OF TWISTING PASSAGES, ALL DIFFERENT. YOU ARE IN A MAZE OF TWISTY LITTLE PASSAGES, ALL DIFFERENT. A SMALL STREAM FLOWS OUT OF THE BUILDING AND YOU ARE STANDING AT THE END OF A ROAD BEFORE A SMALL BRICK BUILDING.ĪROUND YOU IS A FOREST. Colossal Cave Adventure or Adventure, ADVENT, or Colossal Cave was originally written for the PDP-10 in 1976 by Willie Crowther and Don Woods, and was the first ever text adventure game. ![]()
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