examples: enable maximization

examples/fireworks/modules/objects/constants.v

@@ -1,12 +1,20 @@
 module objects
 
-const (
-	width           = 800
-	height          = 800
-	gravity         = Vector{0, -0.03}
-	age_rate        = 1
-	offspring_count = 100
-	rocket_radius   = 5
-	particle_radius = 2.5
-	drag            = 0.98
-)
+pub struct UIParams {
+pub mut:
+	dpi_scale       f32    = 1.0
+	width           int    = 800
+	height          int    = 800
+	gravity         Vector = Vector{0, -0.03}
+	age_rate        int    = 1
+	offspring_count int    = 100
+	rocket_radius   int    = 5
+	particle_radius f32    = 2.5
+	drag            f32    = 0.98
+}
+
+const params = &UIParams{}
+
+pub fn get_params() &UIParams {
+	return objects.params
+}