99 lines
2 KiB
JavaScript
99 lines
2 KiB
JavaScript
'use strict';
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/*global require, module*/
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/************************************************************************
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### Drone.prism() method
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Creates a prism. This is useful for roofs on houses.
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#### Parameters
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* block - the block id - e.g. 6 for an oak sapling or '6:2' for a birch sapling.
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Alternatively you can use any one of the `blocks` values e.g. `blocks.sapling.birch`
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* width - the width of the prism
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* length - the length of the prism (will be 2 time its height)
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#### Example
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prism(blocks.oak,3,12);
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### Drone.prism0() method
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A variation on `prism` which hollows out the inside of the prism. It
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uses the same parameters as `prism`.
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***/
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var STAIRBLOCKS = {
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53: '5:0' // oak wood
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,67: 4 // cobblestone
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,108: 45 // brick
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,109: 98 // stone brick
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,114: 112 // nether brick
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,128: 24 // sandstone
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,134: '5:1' // spruce wood
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,135: '5:2' // birch wood
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,136: '5:3' // jungle wood
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,156: 155 // quartz
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};
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//
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// prism private implementation
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//
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function prism( block, w, d ) {
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var stairEquiv = STAIRBLOCKS[block];
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if ( stairEquiv ) {
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this
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.fwd()
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.prism( stairEquiv,w,d-2 )
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.back()
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.stairs(block, w, d / 2)
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.fwd(d - 1)
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.right(w - 1)
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.turn(2)
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.stairs(block, w, d / 2)
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.turn(2)
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.left(w - 1)
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.back(d - 1);
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}else{
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var c = 0;
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var d2 = d;
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while ( d2 >= 1 ) {
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this.cuboid(block,w,1,d2 );
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d2 -= 2;
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this.fwd( ).up( );
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c++;
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}
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this.down(c ).back(c );
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}
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return this;
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};
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//
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// prism0 private implementation
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//
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function prism0( block,w,d ) {
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this
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.stairs(block,w,d/2)
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.fwd(d-1)
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.right(w-1)
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.turn(2)
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.stairs(block,w,d/2)
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.turn(2)
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.left(w-1)
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.back(d-1);
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var se = STAIRBLOCKS[block];
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if (se) {
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this
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.fwd()
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.prism(se,1,d-2)
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.right(w-1)
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.prism(se,1,d-2)
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.left(w-1)
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.back();
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}
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}
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module.exports = function(Drone){
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Drone.extend(prism0);
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Drone.extend(prism);
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};
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