1 files changed, 71 insertions, 0 deletions
diff --git a/src/piece.cpp b/src/piece.cpp
new file mode 100644
index 0000000..51e8dc7
--- /dev/null
+++ b/src/piece.cpp
@@ -0,0 +1,71 @@
+#include "piece.h"
+
+Piece::Piece(Piece::PieceType type, int xpos){
+    switch (type){
+        case PieceType::LINE:
+            blocks[0] = { 1, 0 };
+            blocks[1] = { 1, 1 };
+            blocks[2] = { 1, 2 };
+            blocks[3] = { 1, 3 };
+            break;
+        case PieceType::BLOCK:
+            blocks[0] = { 1, 1 };
+            blocks[1] = { 1, 2 };
+            blocks[2] = { 2, 1 };
+            blocks[3] = { 2, 2 };
+            break;
+        case PieceType::S:
+            blocks[0] = { 1, 0 };
+            blocks[1] = { 1, 1 };
+            blocks[2] = { 1, 2 };
+            blocks[3] = { 1, 3 };
+            break;
+        case PieceType::T:
+            blocks[0] = { 1, 0 };
+            blocks[1] = { 1, 1 };
+            blocks[2] = { 1, 2 };
+            blocks[3] = { 1, 3 };
+            break;
+        case PieceType::L:
+            blocks[0] = { 1, 0 };
+            blocks[1] = { 1, 1 };
+            blocks[2] = { 1, 2 };
+            blocks[3] = { 1, 3 };
+            break;
+    }
+    position_ = {xpos, 0};
+}
+
+void Piece::initIterator(){
+    iterator = 0;
+}
+
+Point* Piece::nextAbsBlockPos(){
+    current_block_ = blocks[iterator++];
+    current_block_.x += position_.x;
+    current_block_.y += position_.y;
+    if( iterator > SIZE ){
+        iterator = 0;
+        return nullptr;
+    }
+    return &current_block_;
+}
+
+void Piece::rotate(){
+    int tmp;
+
+    // FLIP
+    for( int i = 0; i < SIZE; i++ ){
+        tmp = blocks[i].y;
+        blocks[i].y = blocks[i].x;
+        blocks[i].x = tmp;
+    }
+    // MIRROR
+    for( int i = 0; i < SIZE; i++ ){
+        blocks[i].x = blocks[i].x * (-1) + (SIZE-1);
+    }
+}
+
+void Piece::advance(){
+    position_.y++;
+}