| 26 | | The first lesson is '''conifer_intro.php''': |
| | 30 | For example, the first lesson is |
| | 31 | [/browser/trunk/bolt_examples/user/conifer_intro.php conifer_intro.php]. |
| | 32 | |
| | 33 | The course structure is defined by a "course document", |
| | 34 | [/browser/trunk/bolt_examples/inc/conifer1.php]. |
| | 35 | |
| | 36 | A course document is like an outline for the course; |
| | 37 | it is a hierarchy of '''units'''. |
| | 38 | The bottom-level unites are '''lessons''' and '''exercises'''. |
| | 39 | Each lesson is specified by: |
| 28 | | <?php |
| 29 | | |
| 30 | | echo " |
| 31 | | <h2>California conifers</h2> |
| 32 | | |
| 33 | | Throughout California's Sierra Nevada mountains, |
| 34 | | and especially at high altitudes, |
| 35 | | the dominant plants are tall, straight trees called <b>conifers</b>. |
| 36 | | Conifers are remarkable in many ways: |
| 37 | | <ul> |
| 38 | | <li> They have existed in approximately their current form |
| 39 | | for 240 million years. |
| 40 | | <li> |
| 41 | | They display remarkable tenacity and adaptibility, |
| 42 | | managing to grow in the most unlikely places: |
| 43 | | <img src=jeffrey_pine.jpg> |
| 44 | | <p class=caption>A Jeffrey pine growing on granite in the High Sierra</p> |
| 45 | | <li> The largest living thing is a conifer: |
| 46 | | the General Sherman, a Giant Sequoia in Sequoia National Park. |
| 47 | | Its trunk volume is 52,500 cubic feet. |
| 48 | | <img src=general_sherman.jpg> |
| 49 | | <li> |
| 50 | | The oldest known living thing is a conifer: |
| 51 | | a 4,500-year-old bristlecone pine in the White Mountains |
| 52 | | (a mountain range that neighbors the Sierra Nevada). |
| 53 | | <img src=bristlecone-pine.jpg> |
| 54 | | <p class=caption>A bristlecone pine.</p> |
| 55 | | </ul> |
| 56 | | |
| 57 | | This course will teach you how to identify |
| 58 | | the most common types of California conifers. |
| 59 | | "; |
| 60 | | ?> |
| | 41 | lesson( |
| | 42 | filename("file_name") |
| | 43 | ) |
| 69 | | function intro_lessons() { |
| 70 | | return sequence( |
| 71 | | name('intro lessons'), |
| 72 | | lesson( |
| 73 | | title('Introduction'), |
| 74 | | filename('conifer_intro.php') |
| 75 | | ), |
| 76 | | lesson( |
| 77 | | title('Conifers and deciduous trees'), |
| 78 | | filename('conifer_decid.php') |
| 79 | | ), |
| 80 | | lesson( |
| 81 | | title('Conifers taxonomy'), |
| 82 | | filename('taxonomy.html') |
| 83 | | ) |
| 84 | | ); |
| 85 | | } |
| 86 | | |
| 87 | | function cypress_lessons() { |
| 88 | | return sequence( |
| 89 | | name('Cypress genera'), |
| 90 | | lesson( |
| 91 | | title('Incense-Cedar'), |
| 92 | | filename('incense-cedar.html') |
| 93 | | ), |
| 94 | | lesson( |
| 95 | | title('Juniper'), |
| 96 | | filename('juniper.html') |
| 97 | | ), |
| 98 | | lesson( |
| 99 | | title('Coast Redwood'), |
| 100 | | filename('coast-redwood.html') |
| 101 | | ), |
| 102 | | lesson( |
| 103 | | title('Giant Sequoia'), |
| 104 | | filename('giant-sequoia.html') |
| 105 | | ), |
| 106 | | lesson( |
| 107 | | title('Red Cedar'), |
| 108 | | filename('red-cedar.html') |
| 109 | | ) |
| 110 | | ); |
| 111 | | } |
| 112 | | |
| 113 | | function pine_lessons() { |
| 114 | | return random( |
| 115 | | name('Pine genera'), |
| 116 | | lesson( |
| 117 | | title('Pines'), |
| 118 | | filename('pine.html') |
| 119 | | ), |
| 120 | | lesson( |
| 121 | | title('Spruces'), |
| 122 | | filename('spruce.html') |
| 123 | | ), |
| 124 | | lesson( |
| 125 | | title('Douglas Fir'), |
| 126 | | filename('douglas-fir.html') |
| 127 | | ), |
| 128 | | lesson( |
| 129 | | title('Hemlock'), |
| 130 | | filename('hemlock.html') |
| 131 | | ), |
| 132 | | lesson( |
| 133 | | title('Firs'), |
| 134 | | filename('fir.html') |
| 135 | | ) |
| 136 | | ); |
| 137 | | } |
| 138 | | |
| | 61 | The course document is a PHP file. |
| | 62 | It must return a Bolt control structure. |
| | 63 | In this case, this is done as follows (lines 75-79): |
| | 64 | {{{ |
