auts: work on world

elems.v

@@ -1,8 +1,25 @@
 module main
 
+enum ElemType {
+	none_, // None/Empty
+	
+	//// Primary form
+	wood, sand, stone, coal, clay,
+	// Liquid
+	water, oil,
+	// Gas(?)
+	vapour, methane,
+	// Extra(?)
+	biomass,
+	
+	//// Secondary form
+	glass, concrete, brick
+}
+
 struct Elem {
 mut:
 	name string
+	elem_type ElemType
 	density int // XXX per bit?
 	flameable bool
 

main.v

@@ -5,6 +5,7 @@ fn main() {
 
 	mut e := new_elem()
 	e.name = "wood"
+	e.elem_type = .wood
 	e.density = 100
 	e.flameable = true
 	_ = e
@@ -13,16 +14,19 @@ fn main() {
 
 	mut e2 := new_elem()
 	e2.name = "sand"
+	e2.elem_type = .sand
 	e2.density = 2000
 
 	println("e2: ${e2}")
 
 	mut e3 := new_elem()
 	e3.name = "glass"
+	e3.elem_type = .glass
 	e3.density = 2200
 
 	mut e4 := new_elem()
 	e4.name = "stone"
+	e4.elem_type = .stone
 	e4.density = 8000
 
 	//
@@ -91,5 +95,20 @@ fn main() {
 	//ob.elem.generic_processor0.process(ob)
 	//e4.generic_processor0.process(ob)
 
+	//
+	// World
+	//
+
+	w := new_world()
+
+	b1 := Bit{
+		elem_type: .wood,
+	}
+	
+	w.bits[0][0] = b1
+
+	println("w b1: ${w.bits[0][0]}")
+	println("w 1 0: ${w.bits[1][0]}")
+
 	println("done")
 }

world.v

@@ -0,0 +1,28 @@
+module main
+
+// World bit
+//  size: 50x50x50cm (?)
+struct Bit {
+mut:
+	elem_type ElemType
+}
+
+struct CompoundBit {
+mut:
+	elem1_type ElemType
+	elem1_amt i8
+	elem2_type ElemType
+	elem2_amt i8
+}
+
+struct World {
+mut:
+	//bits [][][]Bit
+	//bits [10][10][10]Bit
+	bits [10][10]Bit // 2d (only surface bits)
+}
+
+fn new_world() &World {
+	w := &World{}
+	return w
+}