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Sand simulation game

Home Page: https://mrmarble.github.io/rusty-city/

Rust 100.00%

rust powdertoy sandbox simulation wasm

rusty-city's Introduction

Rusty City

A work in progress sand simulation game

Controls

Enter: Reset universe
Mouse Wheel: Change brush size
0: erase
1: use Sand
2: use Water
3: use Wall
Space Pause
Right Arrow Next Frame (only when paused)

Debug

Click on top of the fps counter to show the debug window

rusty-city's People

Contributors

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lsroa

rusty-city's Issues

Resizing the window breaks the brush

When resizing the window, the brush doesn't align with the real cursor position

Using floats was a bad idea

Probably when I convert f32 to i32 enough decimals are being lost causing the cell matrix to lose cells.

Hypothesis based on the inclination of the white strips and the fact that the number of white bands changes depending on the window size

Broken erase brush

Buffer overflow

You can "erase" particles even in the background and therefore make a buffer overflow in the particles vec

How to reproduce it

Erase particles until you reach 0

Broken cell counter

Cell counter grows even when painting over non empty cells.
Related to #1

Check for Empty Cell

These changes introduced in pr #1 fixed two bugs but created a new one.

rusty-city/src/universe.rs

Lines 80 to 91 in 28bfe67

 let current_specie = self.get_cell(px, py).specie(); 

 if mat == current_specie { 

 continue; 

 } else { 

 self.cells[i] = Cell::new(mat, self.generation) 

 } 

 if mat == Species::Empty { 

 self.non_empty_cells -= 1; 

 } else if !(current_specie != Species::Empty) { 

 self.non_empty_cells += 1; 

 }

Now you can "paint" over an existing cell which is not a desired behavior.
We should change this to check for Species::Empty

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	let current_specie = self.get_cell(px, py).specie();
	if mat == current_specie {
	continue;
	} else {
	self.cells[i] = Cell::new(mat, self.generation)
	}

	if mat == Species::Empty {
	self.non_empty_cells -= 1;
	} else if !(current_specie != Species::Empty) {
	self.non_empty_cells += 1;
	}