RGBCube/DOOM-fire-zig
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added fps

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const-void 2022-01-15 20:11:24 -05:00
parent 4a442111f9
commit add37add17
1 changed files with 16 additions and 3 deletions
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19
src/main.zig
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@ -4,7 +4,9 @@
// Copy/paste as it helps!
//
const std = @import("std");
const allocator = std.heap.page_allocator;
const allocator = std.heap.page_allocator;
const stdout = std.io.getStdOut().writer();
const stdin = std.io.getStdIn().reader();
@ -454,6 +456,11 @@ var bs_sz_min:u32=0;
var bs_sz_max:u32=0;
var bs_sz_avg:u32=0;
var bs_frame_tic:u32=0;
var t_start:i64=0;
var t_now:i64=0;
var t_dur:f64=0.0;
var fps:f64=0.0;
pub fn initBuf() void {
//some lazy guesswork to make sure we have enough of a buffer to render DOOM fire.
@ -465,6 +472,7 @@ pub fn initBuf() void {
const bs_sz:u64=screen_sz+overflow_sz;
bs=allocator.alloc(u8,bs_sz*2) catch unreachable;
t_start=std.time.milliTimestamp();
resetBuf();
}
@ -486,6 +494,7 @@ pub fn drawBuf(s:[]const u8) void {
//print buffer to string...can be a decent amount of text!
pub fn paintBuf() void {
emit(bs[0..bs_len-1]);
t_now=std.time.milliTimestamp();
bs_frame_tic+=1;
if (bs_sz_min==0) {
//first frame
@ -498,8 +507,12 @@ pub fn paintBuf() void {
if( bs_len > bs_sz_max) { bs_sz_max=bs_len; }
bs_sz_avg=bs_sz_avg*(bs_frame_tic-1)/bs_frame_tic+bs_len/bs_frame_tic;
}
t_dur=@intToFloat(f64,t_now-t_start)/1000.0;
fps=@intToFloat(f64,bs_frame_tic)/t_dur;
emit(fg[0]);
emit_fmt("mem: {s:.2} min / {s:.2} avg / {s:.2} max",.{std.fmt.fmtIntSizeBin(bs_sz_min), std.fmt.fmtIntSizeBin(bs_sz_avg), std.fmt.fmtIntSizeBin(bs_sz_max)});
emit_fmt("mem: {s:.2} min / {s:.2} avg / {s:.2} max [ {d:.2} fps ]",.{std.fmt.fmtIntSizeBin(bs_sz_min), std.fmt.fmtIntSizeBin(bs_sz_avg), std.fmt.fmtIntSizeBin(bs_sz_max), fps});
}
// initBuf(); defer freeBuf();
@ -638,7 +651,7 @@ pub fn showDoomFire() void {
px_prev_hi=px_hi;
px_prev_lo=px_lo;
}
drawBuf(nl);
drawBuf(nl); //is this needed?
}
paintBuf();
resetBuf();