buzz_syntax_cheatsheet

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buzz_syntax_cheatsheet [2016/04/09 22:00] – rootbuzz_syntax_cheatsheet [2016/09/02 20:27] – ilpincy
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 ^ Category ^ Examples ^ ^ Category ^ Examples ^
 ^ Comments | <code buzz># This is a comment</code> | ^ Comments | <code buzz># This is a comment</code> |
-^ File inclusion | <code>include "otherfile.bzz"+^ File inclusion | <code buzz>include "otherfile.bzz"
  
-# NOTE: A specific file can be included only once. Any 'include' statement for a file is ignored after the first inclusion occurred. Relative paths are automatically transformed into absolute paths before including a file.</code>|+# NOTE: A specific file can be included only once. 
 +# Any 'include' statement for a file is ignored after the first inclusion 
 +# occurred. 
 +# Relative paths are automatically transformed into absolute paths before 
 +# including a file.</code>|
 ^ Variables | <code buzz># assignment (by default variables are global) ^ Variables | <code buzz># assignment (by default variables are global)
 x = 2.55   # number x = 2.55   # number
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 # printing on the ARGoS logger # printing on the ARGoS logger
 log("INFO: x = " , x)</code> | log("INFO: x = " , x)</code> |
-^ Conditionals | <code># simple if/then+^ Conditionals | <code buzz># simple if/then
 if (x > 3) { if (x > 3) {
    log("x is too big")    log("x is too big")
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 if (not (x < 3)) if (not (x < 3))
    log("x is <= 3")</code> |    log("x is <= 3")</code> |
-^ Loops |<code># 'while' loop to print 1 2 3 4 5+^ Loops |<code buzz># 'while' loop to print 1 2 3 4 5
 x = 0 x = 0
 while (x < 5) { while (x < 5) {
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    log(x)    log(x)
 }</code> | }</code> |
-^ Tables |<code># creating an empty table+^ Tables |<code buzz># creating an empty table
 t = {} t = {}
  
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 # prints the number of elements in a # prints the number of elements in a
 log(size(a))</code> | log(size(a))</code> |
-^ Functions |<code># defining a function+^ Functions |<code buzz># defining a function
 function my_fun(p) { function my_fun(p) {
    log("Called my_fun(", p, ")")    log("Called my_fun(", p, ")")
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 # creating a lambda # creating a lambda
-f = function(a, b) {+lambda = function(a, b) {
    return a + b    return a + b
-}</code> | +} 
-^ Math |<code># all the math functions are part of the 'math' table+lambda(1,2)</code> | 
 +^ Math |<code buzz># all the math functions are part of the 'math' table
  
 # setting a 2D vector from length and angle # setting a 2D vector from length and angle
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    v1.y = v1.y + v2.y    v1.y = v1.y + v2.y
 } }
-v1 = { x=1, y=2 } +v1 = { .x=1, .y=2 } 
-v2 = { x=3, y=1 }+v2 = { .x=3, .y=1 }
 vec2_sum(v1, v2) vec2_sum(v1, v2)
  
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    return math.atan2(v.y, v.x)    return math.atan2(v.y, v.x)
 }</code> | }</code> |
-^ Swarm management |<code># creation of a swarm with identifier 1+^ Swarm management |<code buzz># creation of a swarm with identifier 1
 s = swarm.create(1) s = swarm.create(1)
  
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 # Create a new swarm n as the negation of swarm s # Create a new swarm n as the negation of swarm s
 n = s.others(103)</code> | n = s.others(103)</code> |
-^ Neighbor management | <code># Iteration (rid is the neighbor's id)+^ Neighbor management | <code buzz># Iteration (rid is the neighbor's id)
 neighbors.foreach( neighbors.foreach(
   function(rid, data) {   function(rid, data) {
     log("robot ", rid, ": ",     log("robot ", rid, ": ",
-        "distance  = ", data.distance, ", " +        "distance  = ", data.distance, ", ", 
-        "azimuth   = ", data.azimuth, ", "+        "azimuth   = ", data.azimuth, ", ",
         "elevation = ", data.elevation) })         "elevation = ", data.elevation) })
  
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           math.sin(data.azimuth)           math.sin(data.azimuth)
     c.z = data.distance * math.sin(data.elevation)     c.z = data.distance * math.sin(data.elevation)
-    return c })+    return c 
 +  })
  
 # Reduction (accum is a table) # Reduction (accum is a table)
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     accum.z = accum.z + data.z     accum.z = accum.z + data.z
     return accum     return accum
-  }, {x=0, y=0, z=0})+  }, {.x=0, .y=0, .z=0})
  
 # Filtering # Filtering
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 # Broadcasting a (key,value) pair # Broadcasting a (key,value) pair
 neighbors.broadcast("key", value)</code> | neighbors.broadcast("key", value)</code> |
-^ Virtual stigmergy | <code># Create a new virtual stigmergy+^ Virtual stigmergy | <code buzz># Create a new virtual stigmergy
 # A unique id (1 here) must be passed # A unique id (1 here) must be passed
 v = stigmergy.create(1) v = stigmergy.create(1)
  • buzz_syntax_cheatsheet.txt
  • Last modified: 2018/03/23 18:17
  • by jayam