items

engine/items/backpack.go

@@ -0,0 +1,33 @@
+package items
+
+import "lab.zaar.be/thefish/alchemyst-go/engine/ecs"
+
+type Backpack struct {
+	MaxNumber int
+	MaxBulk   int
+	MaxMass   int
+	items     []ecs.Entity
+}
+
+func (b Backpack) Type() string {
+	return ecs.BackpackComponent
+}
+
+func (b *Backpack) HasFreeSpace(Bulk, Mass int) bool {
+	totalBulk, totalMass := 0, 0
+	for i, _ := range  b.items {
+		tmp := Controller.GetComponent(b.items[i], Carried{}.Type()).(Carried)
+		carried := tmp
+		totalBulk += carried.Bulk
+		totalMass += carried.Mass
+	}
+	if totalMass >= b.MaxMass {
+		//fixme return message along - 'too heavy'
+		return false
+	}
+	if totalBulk >= b.MaxMass {
+		//fixme return message along - 'doesnt fit to your backpack'
+		return false
+	}
+	return true
+}