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In agent::Sys, perform target selection periodically to avoid agents going after their target too singlemindedly.

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This commit is contained in:
Avi Weinstock 2021-03-23 23:00:05 -04:00
parent 6021a746b0
commit ebc8e945d4
2 changed files with 19 additions and 2 deletions
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1
common/src/comp/agent.rs
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@ -197,6 +197,7 @@ pub enum AgentEvent {
pub struct Target {
pub target: EcsEntity,
pub hostile: bool,
pub selected_at: f64,
}
#[derive(Clone, Debug, Default)]

20
server/src/sys/agent.rs
View File

@ -103,6 +103,7 @@ const SEARCH_DIST: f32 = 48.0;
const SIGHT_DIST: f32 = 80.0;
const SNEAK_COEFFICIENT: f32 = 0.25;
const AVG_FOLLOW_DIST: f32 = 6.0;
const RETARGETING_THRESHOLD_SECONDS: f64 = 10.0;
/// This system will allow NPCs to modify their controller
#[derive(Default)]
@ -280,7 +281,7 @@ impl<'a> System<'a> for Sys {
// glider fall vertical speed)
if vel.0.z < -26.0 {
controller.actions.push(ControlAction::GlideWield);
if let Some(Target { target, hostile: _ }) = agent.target {
if let Some(Target { target, .. }) = agent.target {
if let Some(tgt_pos) = read_data.positions.get(target) {
controller.inputs.move_dir = (pos.0 - tgt_pos.0)
.xy()
@ -289,7 +290,15 @@ impl<'a> System<'a> for Sys {
}
}
}
} else if let Some(Target { target, hostile }) = agent.target {
} else if let Some(Target {
target,
hostile,
selected_at,
}) = agent.target
{
if read_data.time.0 - selected_at > RETARGETING_THRESHOLD_SECONDS {
data.choose_target(agent, controller, &read_data, &mut event_emitter);
}
if let Some(tgt_health) = read_data.healths.get(target) {
// If the target is hostile (either based on alignment or if
// the target just attacked
@ -329,6 +338,7 @@ impl<'a> System<'a> for Sys {
agent.target = Some(Target {
target: attacker,
hostile: true,
selected_at: read_data.time.0,
});
if let Some(tgt_pos) =
read_data.positions.get(attacker)
@ -340,6 +350,7 @@ impl<'a> System<'a> for Sys {
agent.target = Some(Target {
target,
hostile: false,
selected_at: read_data.time.0,
});
data.idle(
agent, controller, &read_data,
@ -423,6 +434,7 @@ impl<'a> System<'a> for Sys {
agent.target = Some(Target {
target: attacker,
hostile: true,
selected_at: read_data.time.0,
});
data.attack(
agent,
@ -508,6 +520,7 @@ impl<'a> AgentData<'a> {
agent.target = Some(Target {
target: owner,
hostile: false,
selected_at: read_data.time.0,
});
}
}
@ -808,6 +821,7 @@ impl<'a> AgentData<'a> {
agent.target = Some(Target {
target,
hostile: false,
selected_at: read_data.time.0,
});
if let Some(tgt_pos) = read_data.positions.get(target) {
let eye_offset = self.body.map_or(0.0, |b| b.eye_height());
@ -882,6 +896,7 @@ impl<'a> AgentData<'a> {
agent.target = Some(Target {
target,
hostile: false,
selected_at: read_data.time.0,
});
}
controller
@ -1138,6 +1153,7 @@ impl<'a> AgentData<'a> {
agent.target = Some(Target {
target,
hostile: true,
selected_at: read_data.time.0,
})
} else {
agent.target = None;