feat: add game/grid.go

game/grid.go

@@ -0,0 +1,32 @@
+package game
+
+import (
+	"tetris/engine/graphics"
+)
+
+const (
+	GRID_WIDTH  = 10
+	GRID_HEIGHT = 16
+)
+
+type Grid [GRID_WIDTH * GRID_HEIGHT]Block
+
+func (Grid) Width() int32 {
+	return GRID_WIDTH
+}
+
+func (Grid) Height() int32 {
+	return GRID_HEIGHT
+}
+
+func (g Grid) At(x, y byte) Block {
+	return g[uint16(x)+(uint16(y)*GRID_WIDTH)]
+}
+
+func (g Grid) Tile(x, y byte) graphics.Tile {
+	return g.At(x, y).Tile()
+}
+
+func (g *Grid) Set(x, y byte, c Block) {
+	(*g)[uint16(x)+(uint16(y)*GRID_WIDTH)] = c
+}