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Rendo 2026-08-03 00:56:44 +05:00
commit dea1b8599a
5 changed files with 144 additions and 38 deletions
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56
src/simulation.rs
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@ -16,6 +16,10 @@ enum GridAction{
from: UVec3,
to: UVec3,
amount: u32,
},
SpawnLiquid {
at: UVec3,
amount: u32,
}
}
@ -52,29 +56,41 @@ pub fn tick(mut grid: ResMut<Grid>) {
transfer_amount = transfer_amount.min(MAX_HORIZONTAL_FLOW) / 4;
if transfer_amount > 0 {
for lookup_vector in [UVec3::new(1,0,0),UVec3::new(0,0,1)] {
if let Some(toward_vector) = vector.checked_add(lookup_vector) {
if let Some(index) = grid.indexify(toward_vector) {
if let Some(toward_amount) = grid.data
[index]
.try_fill(transfer_amount.min(MAX_VERTICAL_FLOW)) {
stack.push(GridAction::MoveLiquid { from: vector, to: toward_vector, amount: toward_amount });
}
}
for lookup_vector in [IVec3::new(1,0,0),IVec3::new(0,0,1),IVec3::new(-1,0,0),IVec3::new(0,0,-1)] {
let push_vector = (vector.as_ivec3() + lookup_vector).max(IVec3::ZERO).as_uvec3();
if push_vector == vector {
continue;
}
let Some(push_index) = grid.indexify(push_vector) else {
continue;
};
if let Some(toward_vector) = vector.checked_sub(lookup_vector) {
if let Some(index) = grid.indexify(toward_vector) {
if let Some(toward_amount) = grid.data
[index]
.try_fill(transfer_amount.min(MAX_VERTICAL_FLOW)) {
stack.push(GridAction::MoveLiquid { from: vector, to: toward_vector, amount: toward_amount });
}
}
}
let Some(push_amount) = grid.data[push_index].try_fill(transfer_amount) else {
continue;
};
stack.push(GridAction::MoveLiquid { from: vector, to: push_vector, amount: push_amount });
}
}
},
GridElement::Source { source_amount } => {
if let Some(gravity_vector) = vector.checked_sub(UVec3::new(0,1,0)) {
if grid.data[grid.indexify(gravity_vector).unwrap()].can_fill() {
stack.push(GridAction::SpawnLiquid { at: gravity_vector, amount: source_amount });
}
}
for lookup_vector in [IVec3::new(1,0,0),IVec3::new(0,0,1),IVec3::new(-1,0,0),IVec3::new(0,0,-1)] {
let push_vector = (vector.as_ivec3() + lookup_vector).max(IVec3::ZERO).as_uvec3();
let Some(push_index) = grid.indexify(push_vector) else {
continue;
};
if grid.data[push_index].can_fill() == false {
continue;
}
stack.push(GridAction::SpawnLiquid { at: push_vector, amount: source_amount });
}
},
_ => {},
}
@ -88,6 +104,10 @@ pub fn tick(mut grid: ResMut<Grid>) {
let (from_index, to_index) = (grid.indexify(from).unwrap(), grid.indexify(to).unwrap());
grid.tranfer_fluid(from_index, to_index, amount);
},
GridAction::SpawnLiquid { at, amount } => {
let at_index = grid.indexify(at).unwrap();
grid.fill(at_index, amount);
}
}
}