feat: lock and spawn shapes

main.go

@@ -14,10 +14,11 @@ import (
 )
 
 var (
-	shape     = game.NewShape(game.SHAPE_O)
-	shape_pos = core.Vec2i8{X: 4, Y: 0}
+	shape     game.Shape
+	shape_pos core.Vec2i8
 	dropTimer = core.NewIntervalTimer(0.3)
 	grid      = game.Grid{}
+	nextShape game.ShapeType
 
 	r = draw.Renderer{
 		Theme: &draw.Theme{
@@ -30,13 +31,29 @@ var (
 	}
 )
 
+func SpawnShape() {
+	shape = game.NewShape(nextShape)
+	shape_pos = core.Vec2i8{X: 4, Y: 0}
+	nextShape = (nextShape + 1) % 7
+}
+
+func LockShape() {
+	for _, block := range shape.Coordinates() {
+		block = shape_pos.Add(block)
+		grid.Set(byte(block.X), byte(block.Y), shape.GetBlock())
+	}
+}
+
 func Update(delta float32) {
 	if dropTimer.UpdateReset(delta) {
 		new_pos := shape_pos
 		new_pos.Y += 1
 
 		// Update position if it does not collide
-		if !game.CheckShapeCollision(new_pos, &shape, &grid) {
+		if game.CheckShapeCollision(new_pos, &shape, &grid) {
+			LockShape()
+			SpawnShape()
+		} else {
 			shape_pos = new_pos
 		}
 	}
@@ -71,6 +88,8 @@ func main() {
 	render.SetTexture(texture)
 	render.SetFont(&assets.Font)
 
+	SpawnShape()
+
 	for !rl.WindowShouldClose() {
 		Update(rl.GetFrameTime())
 		Render()