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src/activities/algebra_by/algebra.js
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| 27 | var secondOperandVal | 27 | var secondOperandVal | ||
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| 28 | var firstOperandVal | 28 | var firstOperandVal | ||
| 29 | var operations = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] | 29 | var operations = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] | ||
| 30 | var OperandsEnum = { | ||||
| 31 | TIMES_SIGN : "\u00D7", | ||||
| 32 | PLUS_SIGN : "\u002B", | ||||
| 33 | MINUS_SIGN : "\u2212", | ||||
| 34 | DIVIDE_SIGN : "\u2215" | ||||
| 35 | } | ||||
| 30 | 36 | | |||
| 31 | var nbLevel = operations.length | 37 | var nbLevel = operations.length | ||
| 32 | 38 | | |||
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| 40 | // currentLevel * N (N behind random) | 46 | // currentLevel * N (N behind random) | ||
| 41 | // where the last levels will do: | 47 | // where the last levels will do: | ||
| 42 | // N * currentLevel | 48 | // N * currentLevel | ||
| 43 | if(operand.text === "x" || operand.text === "+") | 49 | if(operand.text === OperandsEnum.TIMES_SIGN || operand.text === OperandsEnum.PLUS_SIGN) | ||
| 44 | nbLevel = 2 * operations.length | 50 | nbLevel = 2 * operations.length | ||
| 45 | else | 51 | else | ||
| 46 | nbLevel = operations.length | 52 | nbLevel = operations.length | ||
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| 82 | { | 88 | { | ||
| 83 | switch(operand.text) | 89 | switch(operand.text) | ||
| 84 | { | 90 | { | ||
| 85 | case "x": | 91 | case OperandsEnum.TIMES_SIGN: | ||
| 86 | firstOperandVal = coreItems.bar.level | 92 | firstOperandVal = coreItems.bar.level | ||
| 87 | secondOperandVal = operations[coreItems.score.currentSubLevel - 1] | 93 | secondOperandVal = operations[coreItems.score.currentSubLevel - 1] | ||
| 88 | break; | 94 | break; | ||
| 89 | case "+": | 95 | case OperandsEnum.PLUS_SIGN: | ||
| 90 | firstOperandVal = coreItems.bar.level | 96 | firstOperandVal = coreItems.bar.level | ||
| 91 | secondOperandVal = operations[coreItems.score.currentSubLevel - 1] | 97 | secondOperandVal = operations[coreItems.score.currentSubLevel - 1] | ||
| 92 | break; | 98 | break; | ||
| 93 | case "-": | 99 | case OperandsEnum.MINUS_SIGN: | ||
| 94 | firstOperandVal = coreItems.bar.level + 9 | 100 | firstOperandVal = coreItems.bar.level + 9 | ||
| 95 | secondOperandVal = operations[coreItems.score.currentSubLevel - 1] | 101 | secondOperandVal = operations[coreItems.score.currentSubLevel - 1] | ||
| 96 | break; | 102 | break; | ||
| 97 | case "/": | 103 | case OperandsEnum.DIVIDE_SIGN: | ||
| 98 | firstOperandVal = coreItems.bar.level * operations[coreItems.score.currentSubLevel - 1] | 104 | firstOperandVal = coreItems.bar.level * operations[coreItems.score.currentSubLevel - 1] | ||
| 99 | secondOperandVal = coreItems.bar.level | 105 | secondOperandVal = coreItems.bar.level | ||
| 100 | break; | 106 | break; | ||
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| 115 | function getAnswer() { | 121 | function getAnswer() { | ||
| 116 | switch(operand.text) | 122 | switch(operand.text) | ||
| 117 | { | 123 | { | ||
| 118 | case "x": | 124 | case OperandsEnum.TIMES_SIGN: | ||
| 119 | return (firstOperandVal * secondOperandVal) | 125 | return (firstOperandVal * secondOperandVal) | ||
| 120 | 126 | | |||
| 121 | case "+": | 127 | case OperandsEnum.PLUS_SIGN: | ||
| 122 | return (firstOperandVal + secondOperandVal) | 128 | return (firstOperandVal + secondOperandVal) | ||
| 123 | 129 | | |||
| 124 | case "-": | 130 | case OperandsEnum.MINUS_SIGN: | ||
| 125 | return (firstOperandVal - secondOperandVal) | 131 | return (firstOperandVal - secondOperandVal) | ||
| 126 | 132 | | |||
| 127 | case "/": | 133 | case OperandsEnum.DIVIDE_SIGN: | ||
| 128 | return (firstOperandVal / secondOperandVal) | 134 | return (firstOperandVal / secondOperandVal) | ||
| 129 | } | 135 | } | ||
| 130 | } | 136 | } | ||
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