corrade-http-templates – Diff between revs 12 and 77

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1 <?php 1 <?php
2 2
3 ########################################################################### 3 ###########################################################################
4 ## Copyright (C) Wizardry and Steamworks 2015 - License: GNU GPLv3 ## 4 ## Copyright (C) Wizardry and Steamworks 2015 - License: GNU GPLv3 ##
5 ########################################################################### 5 ###########################################################################
6 ## This is a script that uses Corrade's "getterrainheight" command in ## 6 ## This is a script that uses Corrade's "getterrainheight" command in ##
7 ## order to genereate a red-channel height-map of the terrain without ## 7 ## order to genereate a red-channel height-map of the terrain without ##
8 ## the need to be an estate / region owner. Essentially this script can ## 8 ## the need to be an estate / region owner. Essentially this script can ##
9 ## be used to give an overview of the terrain height for any region. ## 9 ## be used to give an overview of the terrain height for any region. ##
10 ########################################################################### 10 ###########################################################################
11   11  
12 ########################################################################### 12 ###########################################################################
13 ## CONFIGURATION ## 13 ## CONFIGURATION ##
14 ########################################################################### 14 ###########################################################################
15   15  
16 # The configuration file for this script containing the settings. 16 # The configuration file for this script containing the settings.
17 require_once("config.php"); 17 require_once('config.php');
18 require_once('functions.php'); 18 require_once('vendor/was/utilities/src/formats/kvp/kvp.php');
-   19 require_once('vendor/was/utilities/src/mathematics/algebra.php');
19   20  
20 ########################################################################### 21 ###########################################################################
21 ## INTERNALS ## 22 ## INTERNALS ##
22 ########################################################################### 23 ###########################################################################
23   24  
24 #### 25 ####
25 # I. Get the terrain height. 26 # I. Get the terrain height.
26 $params = array( 27 $params = array(
27 'command' => 'getterrainheight', 28 'command' => 'getterrainheight',
28 'group' => $GROUP, 29 'group' => $GROUP,
29 'entity' => 'region', 30 'entity' => 'region',
30 'password' => $PASSWORD 31 'password' => $PASSWORD
31 ); 32 );
32 33
33 # We now escape each key and value: this is very important, because the 34 # We now escape each key and value: this is very important, because the
34 # data we send to Corrade may contain the '&' or '=' characters (we don't 35 # data we send to Corrade may contain the '&' or '=' characters (we don't
35 # in this example though but this will not hurt anyone). 36 # in this example though but this will not hurt anyone).
36 array_walk($params, 37 array_walk($params,
37 function(&$value, $key) { 38 function(&$value, $key) {
38 $value = urlencode($key)."=".urlencode($value); 39 $value = urlencode($key)."=".urlencode($value);
39 } 40 }
40 ); 41 );
41 $postvars = implode('&', $params); 42 $postvars = implode('&', $params);
42 43
43 # Set the options, send the request and then display the outcome 44 # Set the options, send the request and then display the outcome
44 if (!($curl = curl_init())) { 45 if (!($curl = curl_init())) {
45 echo "Could not initialise CURL".PHP_EOL; 46 echo "Could not initialise CURL".PHP_EOL;
46 } 47 }
47 48
48 curl_setopt($curl, CURLOPT_URL, $URL); 49 curl_setopt($curl, CURLOPT_URL, $URL);
49 curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); 50 curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
50 curl_setopt($curl, CURLOPT_POST, true); 51 curl_setopt($curl, CURLOPT_POST, true);
51 curl_setopt($curl, CURLOPT_POSTFIELDS, $postvars); 52 curl_setopt($curl, CURLOPT_POSTFIELDS, $postvars);
52 $return = curl_exec($curl); 53 $return = curl_exec($curl);
53 curl_close($curl); 54 curl_close($curl);
54   55  
55 $success = urldecode( 56 $success = urldecode(
56 wasKeyValueGet( 57 wasKeyValueGet(
57 "success", 58 "success",
58 $return 59 $return
59 ) 60 )
60 ); 61 );
61   62  
62 // Unable to get the region heights? 63 // Unable to get the region heights?
63 if($success == 'False') return -1; 64 if($success == 'False') return -1;
64   65  
65 $map = str_getcsv( 66 $map = str_getcsv(
66 urldecode( 67 urldecode(
67 wasKeyValueGet( 68 wasKeyValueGet(
68 "data", 69 "data",
69 $return 70 $return
70 ) 71 )
71 ) 72 )
72 ); 73 );
73   74  
74 #### 75 ####
75 # II. If we did not have exactly 256 x 256 array elements, then abort. 76 # II. If we did not have exactly 256 x 256 array elements, then abort.
76 if(count($map) != 65536) return -1; 77 if(count($map) != 65536) return -1;
77   78  
78 // Find the maximal height of the terrain. 79 // Find the maximal height of the terrain.
79 $max = max($map); 80 $max = max($map);
80   81  
81 #### 82 ####
82 # III. Create a new image by encoding the elevations to the red channel. 83 # III. Create a new image by encoding the elevations to the red channel.
83 $im = imagecreatetruecolor(256, 256); 84 $im = imagecreatetruecolor(256, 256);
84 foreach(range(0, 255) as $x) { 85 foreach(range(0, 255) as $x) {
85 foreach(range(0, 255) as $y) { 86 foreach(range(0, 255) as $y) {
86 $red = mapValueToRange( 87 $red = mapValueToRange(
87 $map[256 * $x + $y], 88 $map[256 * $x + $y],
88 0, 89 0,
89 $max, 90 $max,
90 0, 91 0,
91 256 92 256
92 ); 93 );
93 imagesetpixel( 94 imagesetpixel(
94 $im, 95 $im,
95 $x, 96 $x,
96 256-$y, 97 256-$y,
97 imagecolorallocate( 98 imagecolorallocate(
98 $im, 99 $im,
99 $red, 100 $red,
100 0, 101 0,
101 0 102 0
102 ) 103 )
103 ); 104 );
104 } 105 }
105 } 106 }
106   107  
107   108  
108   109  
109 #### 110 ####
110 # IV. Output the image as Base64 encoded data. 111 # IV. Output the image as Base64 encoded data.
111 ob_start(); 112 ob_start();
112 imagepng($im); 113 imagepng($im);
113 $png = ob_get_contents(); 114 $png = ob_get_contents();
114 imagedestroy($im); 115 imagedestroy($im);
115 ob_end_clean(); 116 ob_end_clean();
116   117  
117 echo base64_encode($png); 118 echo base64_encode($png);
118   119  
119 ?> 120 ?>
120   121  
121
Generated by GNU Enscript 1.6.5.90.
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Generated by GNU Enscript 1.6.5.90.
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