#!/usr/bin/env bash
# #95/#84 CONFIRMATION: are missiles TUNNELLING through the target?
#
# Contact is a fixed 10-unit sphere sampled ONCE PER FRAME.  Logged field speeds
# reach v=955, which at 60fps is a ~16 unit step -- larger than the radius, so
# consecutive samples can straddle the target entirely.  Prediction: a salvo
# lands only the rounds that pass near dead centre, and the rest hit the flight
# cap and FIZZLE.  BT_PROJ_LOG=1 turns on the fizzle line (it is gated, which is
# why the field logs could not answer this).
#
# Verdict = the IMPACT:FIZZLE ratio per salvo.
set -x
. /c/git/bt411/scratchpad/night6/bench_common.sh
cd /c/git/bt411/content || exit 1
taskkill //F //IM btl4.exe > /dev/null 2>&1
sleep 2
sed "s/^map=.*/map=grass/; s/^time=.*/time=day/" MP.EGG > SALVO.EGG

LOG=salvo_${1:-pre}.log
rm -f "$LOG"

# Walk up to the spawned target and hold the missile group down.
BT_PROJ_LOG=1 BT_DMG_LOG=1 BT_FIRE_LOG=1 \
BT_SPAWN_ENEMY=1 BT_GOTO=enemy BT_GOTO_STOP=2 \
BT_AUTOFIRE=1 BT_AF_MISSILE=1 BT_AF_PERIOD=3 \
  bt_launch "$LOG" SALVO.EGG 0x03

sleep 100
taskkill //F //IM btl4.exe > /dev/null 2>&1
sleep 2

echo "=== impacts vs fizzles ==="
printf "IMPACT  %s\n" "$(grep -c 'projectile\] IMPACT' "$LOG")"
printf "FIZZLE  %s\n" "$(grep -c 'projectile\] FIZZLE' "$LOG")"
printf "WORLD   %s\n" "$(grep -c 'projectile\] WORLD' "$LOG")"
echo "=== impact speeds (the tunnelling driver) ==="
grep -o 'IMPACT .*v=[0-9.]*' "$LOG" | grep -o 'v=[0-9.]*' | sort -t= -k2 -n | tail -3