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further improves fire behavior

This commit is contained in:
Matthew Rothlisberger 2025-06-20 10:23:17 -04:00
parent ab23631e66
commit 1c5686ea54
1 changed files with 15 additions and 11 deletions
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26
src/animations/Doom.zig
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@ -24,14 +24,14 @@ pub fn init(allocator: Allocator, terminal_buffer: *TerminalBuffer, fire_height:
Cell.init(0x2591, 0x070707, TerminalBuffer.Color.DEFAULT),
Cell.init(0x2592, 0x470F07, TerminalBuffer.Color.DEFAULT),
Cell.init(0x2593, 0x771F07, TerminalBuffer.Color.DEFAULT),
Cell.init(0x2588, 0xAF3F07, TerminalBuffer.Color.DEFAULT),
Cell.init(0x2591, 0xC74707, 0xAF3F07),
Cell.init(0x2592, 0xDF5707, 0xAF3F07),
Cell.init(0x2593, 0xCF6F0F, 0xAF3F07),
Cell.init(0x2588, 0xC78F17, 0xAF3F07),
Cell.init(0x2591, 0xBF9F1F, 0xAF3F07),
Cell.init(0x2592, 0xBFAF2F, 0xAF3F07),
Cell.init(0x2593, 0xCFCF6F, 0xAF3F07),
Cell.init(0x2588, 0x9F2F07, TerminalBuffer.Color.DEFAULT),
Cell.init(0x2591, 0xBF4707, 0xAF3F07),
Cell.init(0x2592, 0xC74707, 0xAF3F07),
Cell.init(0x2593, 0xDF5707, 0xAF3F07),
Cell.init(0x2588, 0xCF6F0F, 0xAF3F07),
Cell.init(0x2591, 0xC78F17, 0xAF3F07),
Cell.init(0x2592, 0xBF9F1F, 0xAF3F07),
Cell.init(0x2593, 0xBFAF2F, 0xAF3F07),
Cell.init(0x2588, 0xFFFFFF, 0xAF3F07),
}
else
@ -82,10 +82,12 @@ fn draw(self: *Doom) void {
const from = y * self.terminal_buffer.width + x;
// Generate random datum for fire propagation
const random = (self.terminal_buffer.random.int(u16) % 10);
const random = (self.terminal_buffer.random.int(u8) % 10);
// Select semi-random target cell
const to = from -| self.terminal_buffer.width -| (random & 3) + 1;
const to_x = to % self.terminal_buffer.width;
const to_y = to / self.terminal_buffer.width;
// Get fire level of current cell
const level_buf_from = self.buffer[from];
@ -95,9 +97,11 @@ fn draw(self: *Doom) void {
if (random >= self.height) level_buf_to -|= 1;
self.buffer[to] = @intCast(level_buf_to);
// Send fire level to terminal buffer
// Send known fire levels to terminal buffer
const from_cell = self.fire[level_buf_from];
const to_cell = self.fire[level_buf_to];
to_cell.put(x, y);
from_cell.put(x, y);
to_cell.put(to_x, to_y);
}
// Draw bottom line (fire source)