minecraft - minecraft.go

     1  // Package minecraft is a level viewer/editor for the popular creative game minecraft
     2  package minecraft // import "vimagination.zapto.org/minecraft"
     3  
     4  // TransparentBlockList is a slice of the block ids that are transparent.
     5  type TransparentBlockList []uint16
     6  
     7  // Add is a convenience method for the transparent block list. It adds a new
     8  // block id to the list, making sure to not add duplicates
     9  func (t *TransparentBlockList) Add(blockID uint16) bool {
    10  	for _, b := range *t {
    11  		if b == blockID {
    12  			return false
    13  		}
    14  	}
    15  	*t = append(*t, blockID)
    16  	return true
    17  }
    18  
    19  // Remove is a convenience method to remove a block id from the transparent
    20  // block list
    21  func (t *TransparentBlockList) Remove(blockID uint16) bool {
    22  	for n, b := range *t {
    23  		if b == blockID {
    24  			lt := len(*t) - 1
    25  			(*t)[n], (*t) = (*t)[lt], (*t)[:lt]
    26  			return true
    27  		}
    28  	}
    29  	return false
    30  }
    31  
    32  // LightBlockList is a map of block ids to the amount of light they give off
    33  type LightBlockList map[uint16]uint8
    34  
    35  // Add is a convenience method for the light block list. It adds a new block id
    36  // to the list with its corresponding light level
    37  func (l LightBlockList) Add(blockID uint16, light uint8) bool {
    38  	toRet := true
    39  	if _, ok := l[blockID]; ok {
    40  		toRet = false
    41  	}
    42  	l[blockID] = light
    43  	return toRet
    44  }
    45  
    46  // Remove is a convenience method to remove a block id from the light block
    47  // list
    48  func (l LightBlockList) Remove(blockID uint16) bool {
    49  	if _, ok := l[blockID]; ok {
    50  		delete(l, blockID)
    51  		return true
    52  	}
    53  	return false
    54  }
    55  
    56  var (
    57  	// TransparentBlocks is a slice of the block ids that are transparent.
    58  	// This is used in lighting calculations and is user overrideable for custom
    59  	// blocks
    60  	TransparentBlocks = TransparentBlockList{0, 6, 18, 20, 26, 27, 28, 29, 30, 31, 33, 34, 37, 38, 39, 40, 50, 51, 52, 54, 55, 59, 63, 64, 65, 66, 69, 70, 71, 75, 76, 77, 78, 79, 81, 83, 85, 90, 92, 93, 94, 96, 102, 106, 107, 117, 118, 119, 120, 750}
    61  	// LightBlocks is a map of block ids to the amount of light they give off
    62  	LightBlocks = LightBlockList{
    63  		10:  15,
    64  		11:  15,
    65  		39:  1,
    66  		50:  14,
    67  		51:  15,
    68  		62:  13,
    69  		74:  13,
    70  		76:  7,
    71  		89:  15,
    72  		90:  11,
    73  		91:  15,
    74  		94:  9,
    75  		117: 1,
    76  		119: 15,
    77  		120: 1,
    78  		122: 1,
    79  		124: 15,
    80  		130: 7,
    81  		138: 15,
    82  	}
    83  )
    84