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https://github.com/pmmp/PocketMine-MP.git
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Added simple Matrices
This commit is contained in:
Shoghi Cervantes
parent
02721c09a4
commit
19d0c70669
@ -1367,7 +1367,7 @@ class Player{
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}
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break;
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case MC_INTERACT:
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if($this->spawned === false or $this->blocked === true){
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if($this->spawned === false){
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break;
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}
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$this->craftingItems = array();
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@ -1376,9 +1376,7 @@ class Player{
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if($this->gamemode !== VIEW and $this->blocked === false and ($target instanceof Entity) and $this->entity->distance($target) <= 8){
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$data["targetentity"] = $target;
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$data["entity"] = $this->entity;
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if(!($target instanceof Entity)){
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break;
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}elseif($target->class === ENTITY_PLAYER and ($this->server->api->getProperty("pvp") == false or $this->server->difficulty <= 0 or ($target->player->gamemode & 0x01) === 0x01)){
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if($target->class === ENTITY_PLAYER and ($this->server->api->getProperty("pvp") == false or $this->server->difficulty <= 0 or ($target->player->gamemode & 0x01) === 0x01)){
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break;
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}elseif($this->server->handle("player.interact", $data) !== false){
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$slot = $this->getSlot($this->slot);
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193
src/math/Matrix.php
Normal file
193
src/math/Matrix.php
Normal file
@ -0,0 +1,193 @@
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<?php
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/*
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-
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/ \
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/ \
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/ PocketMine \
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/ MP \
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|\ @shoghicp /|
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|. \ / .|
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| .. \ / .. |
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| .. | .. |
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| .. | .. |
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\ | /
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\ | /
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\ | /
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\ | /
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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*/
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class Matrix implements ArrayAccess{
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private $matrix = array();
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private $rows = 0;
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private $columns = 0;
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public function offsetExists($offset){
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return isset($this->matrix[(int) $offset]);
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}
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public function offsetGet($offset){
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return $this->matrix[(int) $offset];
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}
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public function offsetSet($offset, $value){
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$this->matrix[(int) $offset] = $value;
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}
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public function offsetUnset($offset){
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unset($this->matrix[(int) $offset]);
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}
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public function __construct($rows, $columns, array $set = array()){
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$this->rows = max(1, (int) $rows);
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$this->columns = max(1, (int) $columns);
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$this->set($set);
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}
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public function set(array $m){
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for($r = 0; $r < $this->rows; ++$r){
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$this->matrix[$r] = array();
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for($c = 0; $c < $this->columns; ++$c){
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$this->matrix[$r][$c] = isset($m[$r][$c]) ? $m[$r][$c] : 0;
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}
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}
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}
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public function getRows(){
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return ($this->rows);
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}
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public function getColumns(){
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return ($this->columns);
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}
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public function setElement($row, $column, $value){
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if($row > $this->rows or $row < 0 or $column > $this->columns or $column < 0){
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return false;
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}
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$this->matrix[(int) $row][(int) $column] = $value;
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return true;
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}
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public function getElement($row, $column){
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if($row > $this->rows or $row < 0 or $column > $this->columns or $column < 0){
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return false;
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}
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return $this->matrix[(int) $row][(int) $column];
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}
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public function isSquare(){
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return $this->rows === $this->columns;
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}
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public function add(Matrix $matrix){
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if($this->rows !== $matrix->getRows() or $this->columns !== $matrix->getColumns()){
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return false;
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}
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$result = new Matrix($this->rows, $this->columns);
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for($r = 0; $r < $this->rows; ++$r){
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for($c = 0; $c < $this->columns; ++$c){
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$result->setElement($r, $c, $this->matrix[$r][$c] + $matrix->getElement($r, $c));
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}
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}
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return $result;
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}
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public function substract(Matrix $matrix){
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if($this->rows !== $matrix->getRows() or $this->columns !== $matrix->getColumns()){
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return false;
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}
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$result = clone $this;
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for($r = 0; $r < $this->rows; ++$r){
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for($c = 0; $c < $this->columns; ++$c){
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$result->setElement($r, $c, $this->matrix[$r][$c] - $matrix->getElement($r, $c));
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}
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}
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return $result;
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}
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public function multiplyScalar($number){
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$result = clone $this;
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for($r = 0; $r < $this->rows; ++$r){
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for($c = 0; $c < $this->columns; ++$c){
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$result->setElement($r, $c, $this->matrix[$r][$c] * $number);
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}
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}
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return $result;
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}
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public function divideScalar($number){
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$result = clone $this;
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for($r = 0; $r < $this->rows; ++$r){
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for($c = 0; $c < $this->columns; ++$c){
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$result->setElement($r, $c, $this->matrix[$r][$c] / $number);
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}
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}
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return $result;
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}
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public function transpose(){
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$result = new Matrix($this->columns, $this->rows);
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for($r = 0; $r < $this->rows; ++$r){
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for($c = 0; $c < $this->columns; ++$c){
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$result->setElement($c, $r, $this->matrix[$r][$c]);
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}
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}
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return $result;
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}
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//Naive Matrix product, O(n^3)
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public function product(Matrix $matrix){
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if($this->columns !== $matrix->getRows()){
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return false;
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}
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$c = $matrix->getColumns();
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$result = new Matrix($this->rows, $c);
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for($i = 0; $i < $this->rows; ++$i){
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for($j = 0; $j < $c; ++$j){
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$sum = 0;
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for($k = 0; $k < $this->columns; ++$k){
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$sum += $this->matrix[$i][$k] * $matrix->getElement($k, $j);
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}
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$result->setElement($i, $j, $sum);
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}
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}
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return $result;
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}
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//Computation of the determinant of 2x2 and 3x3 matrices
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public function determinant(){
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if($this->isSquare() !== true){
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return false;
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}
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switch($this->rows){
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case 1:
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return 0;
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case 2:
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return $this->matrix[0][0] * $this->matrix[1][1] - $this->matrix[0][1] * $this->matrix[1][0];
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case 3:
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return $this->matrix[0][0] * $this->matrix[1][1] * $this->matrix[2][2] + $this->matrix[0][1] * $this->matrix[1][2] * $this->matrix[2][0] + $this->matrix[0][2] * $this->matrix[1][0] * $this->matrix[2][1] - $this->matrix[2][0] * $this->matrix[1][1] * $this->matrix[0][2] - $this->matrix[2][1] * $this->matrix[1][2] * $this->matrix[0][0] - $this->matrix[2][2] * $this->matrix[1][0] * $this->matrix[0][1];
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}
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return false;
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}
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public function __toString(){
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$s = "";
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for($r = 0; $r < $this->rows; ++$r){
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$s .= implode(",", $this->matrix[$r]).";";
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}
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return "Matrix({$this->rows}x{$this->columns};".substr($s, 0, -1).")";
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}
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}
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