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| public:t-vien-08-1:lab_1_materials [2008/01/10 10:58] – hannes | public:t-vien-08-1:lab_1_materials [2024/04/29 13:33] (current) – external edit 127.0.0.1 |
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| - **A Class:**\\ Add the class **''Tool''** to your program. This class represents a useful object that is made from some particular material. The problem is that the tool sometimes breaks when it is being used, depending on its material strength. You will simulate this behavior with this class. | - **A Class:**\\ Add the class **''Tool''** to your program. This class represents a useful object that is made from some particular material. The problem is that the tool sometimes breaks when it is being used, depending on its material strength. You will simulate this behavior with this class. |
| - Initialize the **''Tool''** class properties **''name''**, **''material''** and ''**working**'' in the constructor, with the first two being passed in and the last one set to the default value of **''True''**. | - Initialize the **''Tool''** class properties **''name''**, **''material''** and ''**working**'' in the constructor, with the first two being passed in and the last one set to the default value of **''True''**. |
| - Add the method **''use''** to the class, which prints out "You can't use this broken [name]" if the tool is not working (''working is False''), prints out "Dang! The [name] just broke!" (ands sets ''working=False'') if a test of material strength fails (see next) or prints out "The [name] came in really handy!" if nothing catastrophic occurs. | - Add the method **''use''** to the class, which prints out "You can't use this broken [name]" if the tool is not working (''working is False''), prints out "Dang! The [name] just broke!" (ands sets ''working=False'') if a test of material strength fails (see next) or prints out "The [name] really came in handy!" if nothing catastrophic occurs. |
| - To help with testing the material strength, declare a global dictionary called ''**material_strength**'', keyed on material names (like **''"glass", "plastic", "wood", "metal"''**) and mapping them to strength values between 0 and 100 (your choice). | - To help with testing the material strength, declare a global dictionary called ''**material_strength**'', keyed on material names (like **''"glass", "plastic", "wood", "metal"''**) and mapping them to strength values between 0 and 100 (your choice). |
| - The test in the **''use''** method of a tool fails if a random value in the 0 to 100 range is higher than the strength of the item's named material. | - The test in the **''use''** method of a tool fails if a random value in the 0 to 100 range is higher than the strength of the item's named material. |
