place blocks

internal/entity/entity.go

@@ -64,6 +64,7 @@ func NewEntity(typename string, pos itype.Vec3d) *Entity {
 		b:    b,
 		pos:  pos,
 		name: typename,
+		ds:   make(itype.Dataset),
 	}
 }
 
@@ -106,3 +107,29 @@ func (e *Entity) EyeHeight() float64 {
 func (e *Entity) EyePosition() itype.Vec3d {
 	return e.pos.Addv(0, e.EyeHeight(), 0)
 }
+
+func (e *Entity) DatasetI(name string) int64 {
+	return e.ds[name].(int64)
+}
+func (e *Entity) DatasetF(name string) float64 {
+	return e.ds[name].(float64)
+}
+func (e *Entity) DatasetS(name string) string {
+	return e.ds[name].(string)
+}
+func (e *Entity) DatasetB(name string) bool {
+	return e.ds[name].(bool)
+}
+
+func (e *Entity) SetDatasetI(name string, val int64) {
+	e.ds[name] = val
+}
+func (e *Entity) SetDatasetF(name string, val float64) {
+	e.ds[name] = val
+}
+func (e *Entity) SetDatasetS(name string, val string) {
+	e.ds[name] = val
+}
+func (e *Entity) SetDatasetB(name string, val bool) {
+	e.ds[name] = val
+}