Declares a 2D 5x5 array of Entities Each element refers to an Entity object ( Worth 0 1 GPA ) Defines a constructor which initializes each array element to 'null' The element at 1 1 will refer to an Entity object (the starting location of the one entity in the simulation) ( Worth 0 3 GPA , 0 2 initializing the entire array, 0 1 for specifying the correct starting location of the Entity) Using nested loops the simulated world will be displayed The appearance of an array element depends upon whether it is empty (space character) or the one element that refers to an Entity object (an X appears in the starting code for program but if the appearance is changed to another character (e g E then your program should display an 'E' and no an 'X' ) That is, the display of the Entity is based on the current value of the appearance attribute ( Worth 0 4 GPA , 0 2 GPA for each case) Each element is bound above, below, left and right by a line (see Figure 1) ( Worth 1 2 GPA if every element bounded in the 4 directions ) Cases where every cell is bounded except for the following Misses one of the following top row, bottom row, left row, right row (Worth 1 0 GPA) Misses two of the following top row, bottom row, left row, right row (Worth 0 8 GPA) Misses three of the following top row, bottom row, left row, right row (Worth 0 6 GPA) Misses all of the following top row, bottom row, left row, right row (Worth 0 4 GPA) Cases where only the outer boundary is bounded Only the very top AND the bottom is bounded Worth 0 2 GPA) Only the very top OR the bottom is bounded Worth 0 1 GPA) Figure 1 The display of array elements bounded in the four directions (starting location of object at 1 1 ) Loop the display of the world until the user enters a negative location for the row or column (next feature) ( Worth 0 1 GPA ) (1) Prompts the user for the destination (row column) to move the entity (2) A negative value for either coordinate will end the program (regardless of what value was entered for the other coordinate e g , ( 1 1), ( 1,0), (20, 22) will all end the program) (3) A value outside the bounds of the array will result in an appropriate error message, non negative out of bound values will still allow the program to prompt again as long as the other coordinate is not negative ( Worth 0 6 GPA , 0 2 GPA for each feature) Figure 2 Any out of bound destinations will result in an error message Any negative coordinates will end the simulation program (The previous feature must be implemented first) Assuming that no out of bound coordinates have been entered, the program moves the entity to the specified destination The previous cell will appear 'empty' (space) whereas the destination will take on the appearance of the entity ('X' in the starting code) Movement must work for multiple turns in order to get credit (and not just 'apparently' work for one turn and thereafter producing an incorrect result) ( Worth 1 3 GPA , 0 7 GPA for properly setting the destination cell, 0 6 GPA for properly setting the source cell)

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Question: Declares a 2D 5x5 array of Entities. Each element refers to an Entity object. ( Worth 0.1 GPA ) Defines a constructor which initializes each

Declares a 2D 5x5 "array of Entities". Each element refers to an Entity object. (Worth 0.1 GPA)
Defines a constructor which initializes each array element to 'null'. The element at [1][1] will refer to an Entity object (the starting location of the one entity in the simulation). (Worth 0.3 GPA, 0.2 initializing the entire array, 0.1 for specifying the correct starting location of the Entity)
Using nested loops the simulated world will be displayed. The appearance of an array element depends upon whether it is empty (space character) or the one element that refers to an Entity object (an X appears in the starting code for program but if the appearance is changed to another character (e.g. E then your program should display an 'E' and no an 'X' ). That is, the display of the Entity is based on the current value of the appearance attribute. (Worth 0.4 GPA, 0.2 GPA for each case)
Each element is bound above, below, left and right by a line (see Figure 1). (Worth 1.2 GPA if every element bounded in the 4 directions). Cases where every cell is bounded except for the following: Misses one of the following: top row, bottom row, left row, right row. (Worth 1.0 GPA) Misses two of the following: top row, bottom row, left row, right row. (Worth 0.8 GPA) Misses three of the following: top row, bottom row, left row, right row. (Worth 0.6 GPA) Misses all of the following: top row, bottom row, left row, right row. (Worth 0.4 GPA) Cases where only the outer boundary is bounded: Only the very top AND the bottom is bounded: Worth 0.2 GPA) Only the very top OR the bottom is bounded: Worth 0.1 GPA)
	Figure 1: The display of array elements bounded in the four directions (starting location of object at [1][1])
Loop the display of the world until the user enters a negative location for the row or column (next feature). (Worth 0.1 GPA)
(1) Prompts the user for the destination (row/column) to move the entity. (2) A negative value for either coordinate will end the program (regardless of what value was entered for the other coordinate e.g., (-1/-1), (-1,0), (20,-22) will all end the program). (3) A value outside the bounds of the array will result in an appropriate error message, non-negative out-of-bound values will still allow the program to prompt again as long as the other coordinate is not negative. (Worth 0.6 GPA, 0.2 GPA for each feature)
	Figure 2: Any out-of-bound destinations will result in an error message. Any negative coordinates will end the simulation program.
(The previous feature must be implemented first). Assuming that no out-of-bound coordinates have been entered, the program "moves" the entity to the specified destination. The previous cell will appear 'empty' (space) whereas the destination will take on the appearance of the entity ('X' in the starting code). Movement must work for multiple turns in order to get credit (and not just 'apparently' work for one turn and thereafter producing an incorrect result). (Worth 1.3 GPA, 0.7 GPA for properly setting the destination cell, 0.6 GPA for properly setting the source cell)

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