Initial commit

game/draw/grid/grid.go

@@ -0,0 +1,47 @@
+package grid
+
+import (
+	"image/color"
+
+	"tetris/engine/render"
+
+	rl "github.com/gen2brain/raylib-go/raylib"
+)
+
+const (
+	// How many pixels wide and tall each cell is.
+	CELL_SIZE = 32
+
+	// Number of pixels between each cell
+	CELL_SPACING = 1
+)
+
+func DrawBackground(rect rl.RectangleInt32, col color.RGBA, border_size int32, border_col color.RGBA) {
+	render.DrawRectBorder(rl.RectangleInt32{
+		X:      int32(rect.X),
+		Y:      int32(rect.Y),
+		Width:  int32((rect.Width * (CELL_SIZE + CELL_SPACING)) + CELL_SPACING),
+		Height: int32((rect.Height * (CELL_SIZE + CELL_SPACING)) + CELL_SPACING),
+	}, col, border_size, border_col)
+}
+
+func Draw(rect rl.RectangleInt32) {
+	// offset for background.
+	rect.X = rect.X + CELL_SPACING
+	rect.Y = rect.Y + CELL_SPACING
+
+	cell := rl.Rectangle{
+		X:      0,
+		Y:      0,
+		Width:  float32(CELL_SIZE),
+		Height: float32(CELL_SIZE),
+	}
+
+	for y := range rect.Height {
+		for x := range rect.Width {
+			cell.X = float32(rect.X + (x * (CELL_SIZE + CELL_SPACING)))
+			cell.Y = float32(rect.Y + (y * (CELL_SIZE + CELL_SPACING)))
+			rl.DrawRectangleRec(cell, rl.Black)
+		}
+	}
+}