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Enemies will now fight back if they're cornered. Was actually way easier than I thought.

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This commit is contained in:
Zed A. Shaw 2025-08-21 23:32:34 -04:00
parent 7ffa6025ce
commit 586343a614
3 changed files with 37 additions and 25 deletions
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54
systems.cpp
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@ -107,6 +107,9 @@ void System::enemy_pathing() {
map.random_walk(out, motion.random, PATHING_TOWARD);
} else if(enemy_ai.wants_to("run_away")) {
map.random_walk(out, motion.random, PATHING_AWAY);
} else {
motion = {0,0};
return; // enemy doesn't want to move
}
motion = { int(out.x - position.location.x), int(out.y - position.location.y)};
@ -117,31 +120,38 @@ void System::enemy_pathing() {
}
inline void move_entity(SpatialMap &collider, Map &game_map, Position &position, Motion &motion, Entity ent) {
Point move_to = {
position.location.x + motion.dx,
position.location.y + motion.dy
};
motion = {0,0}; // clear it after getting it
// it's a wall, skip
if(!game_map.can_move(move_to)) return;
// there's collision skip
if(collider.occupied(move_to)) return;
// all good, do the move
collider.move(position.location, move_to, ent);
position.location = move_to;
}
void System::motion() {
auto& level = GameDB::current_level();
level.world->query<Position, Motion>(
auto world = level.world;
auto map = level.map;
auto collider = level.collision;
world->query<Position, Motion>(
[&](auto ent, auto &position, auto &motion) {
// don't process entities that don't move
if(motion.dx != 0 || motion.dy != 0) {
move_entity(*level.collision, *level.map, position, motion, ent);
}
// skip enemies that aren't moving
if(motion.dx == 0 && motion.dy == 0) return;
Point move_to = {
position.location.x + motion.dx,
position.location.y + motion.dy
};
motion = {0,0}; // clear it after getting it
dbc::check(map->can_move(move_to), "Enemy pathing failed, move_to is wall.");
bool cant_move = collider->occupied(move_to);
if(auto enemy_ai = world->get_if<ai::EntityAI>(ent)) {
enemy_ai->set_state("cant_move", cant_move);
}
// it's a wall, skip
if(cant_move) return;
// all good, do the move
collider->move(position.location, move_to, ent);
position.location = move_to;
});
}