fix typo in distance that was causing range to be further than intended, increase range of archer

game/math2d.odin

@@ -17,7 +17,7 @@ screen_to_grid :: proc(px, py: f32) -> (int, int) {
 distance :: proc(a, b: Vec2) -> f32 {
 	dx := b.x - a.x
 	dy := b.y - a.y
-	return math.sqrt(dx * dx + dy + dy)
+	return math.sqrt(dx * dx + dy * dy)
 }
 
 move_toward :: proc(pos: ^Vec2, target: Vec2, speed, dt: f32) {

game/tower.odin

@@ -36,7 +36,7 @@ Tower_Archetype :: struct {
 TOWER_ARCHETYPES: [Tower_Kind]Tower_Archetype = {
 	.Archer = {
 		kind = .Archer,
-		range = 50,
+		range = 100,
 		damage = 12,
 		fire_rate = 0.45,
 		cost = TOWER_COST,