feat: add makeSunAvoiderTree and makeTreeForRole to Behavior
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dualfroz committed
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1 file changed
+139
@@ -617,3 +617,142 @@ BehaviorTree makeGrazingAnimalTree(const BehaviorTuning& tuning) {
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return BehaviorStatus::Running;
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return BehaviorStatus::Running;
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}));
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}));
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auto lured = std::unique_ptr<SequenceNode>(new SequenceNode("followHeldFood"));
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lured->add(condition("playerOffersFood", [](BehaviorContext& ctx) {
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if (!ctx.playerPresent) return false;
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if (!isBreedingFood(ctx.agent->species, ctx.playerHeldItem)) return false;
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return behaviorHorizontalDistance(ctx.agent->position, ctx.playerPosition) <=
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ctx.tuning.followFoodRadius;
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}));
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lured->add(action("stepTowardPlayer", [](BehaviorContext& ctx) {
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BehaviorAgent& agent = *ctx.agent;
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float distance = behaviorHorizontalDistance(agent.position, ctx.playerPosition);
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if (distance <= ctx.tuning.breedRadius) {
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ctx.blackboard.setFlag("inLove", true);
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return BehaviorStatus::Success;
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}
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stepTowardPoint(agent, ctx.playerPosition, ctx.tuning.arriveEpsilon);
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return BehaviorStatus::Running;
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}));
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auto breed = std::unique_ptr<SequenceNode>(new SequenceNode("breed"));
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breed->add(condition("mateReady", [](BehaviorContext& ctx) {
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if (!ctx.matePresent) return false;
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if (!ctx.blackboard.flag("inLove")) return false;
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return behaviorHorizontalDistance(ctx.agent->position, ctx.matePosition) <=
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ctx.tuning.breedRadius;
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}));
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breed->add(std::unique_ptr<BehaviorNode>(new CooldownNode(
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"breedCooldown",
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action("breed",
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[](BehaviorContext& ctx) {
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++ctx.agent->breedCount;
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ctx.blackboard.setFlag("inLove", false);
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ctx.blackboard.setCount("lastBreedTick", static_cast<int>(ctx.tick));
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return BehaviorStatus::Success;
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}),
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tuning.breedCooldownTicks)));
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auto graze = std::unique_ptr<SequenceNode>(new SequenceNode("graze"));
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graze->add(condition("standingOnGrass", [](BehaviorContext& ctx) {
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Vec3i below = ctx.agent->cell();
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return ctx.world->blockAt(below.x, below.y - 1, below.z) == Block::Grass;
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}));
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graze->add(std::unique_ptr<BehaviorNode>(new TimeLimitNode(
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"grazeWindow",
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action("chew",
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[](BehaviorContext& ctx) {
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BehaviorAgent& agent = *ctx.agent;
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++agent.grazeTicks;
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if (agent.grazeTicks < ctx.tuning.grazeDurationTicks)
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return BehaviorStatus::Running;
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agent.grazeTicks = 0;
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ctx.blackboard.setCount("meals", ctx.blackboard.count("meals") + 1);
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return BehaviorStatus::Success;
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}),
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tuning.grazeDurationTicks * 5)));
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auto root = std::unique_ptr<SelectorNode>(new SelectorNode("animalRoot"));
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root->add(std::move(flee));
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root->add(std::move(breed));
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root->add(std::move(lured));
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root->add(std::move(graze));
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root->add(action("wander", [](BehaviorContext& ctx) {
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BehaviorAgent& agent = *ctx.agent;
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if (length(agent.heading) < 1e-3f || behaviorNextRandom(agent.rng) % 32u == 0u)
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agent.heading = horizontalHeading(agent.rng);
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stepTowardPoint(agent, agent.position + agent.heading * 2.0f, ctx.tuning.arriveEpsilon);
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return BehaviorStatus::Success;
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}));
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return BehaviorTree(std::move(root));
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}
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BehaviorTree makeSunAvoiderTree(const BehaviorTuning& tuning) {
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auto seekShade = std::unique_ptr<SequenceNode>(new SequenceNode("seekShade"));
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seekShade->add(condition("exposedToSun", [](BehaviorContext& ctx) {
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BehaviorAgent& agent = *ctx.agent;
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agent.sheltered = cellIsShaded(*ctx.world, agent.cell());
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if (!ctx.daylight) return false;
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if (ctx.skyLight < ctx.tuning.sunLightThreshold) return false;
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return !agent.sheltered;
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}));
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seekShade->add(action("findShade", [](BehaviorContext& ctx) {
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Vec3i shade;
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if (!findShadedCell(*ctx.world, ctx.agent->cell(), ctx.tuning.shadeSearchRadius, ctx.path,
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shade)) {
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return BehaviorStatus::Failure;
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}
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ctx.blackboard.setCell("shadeCell", shade);
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return BehaviorStatus::Success;
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}));
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seekShade->add(std::unique_ptr<BehaviorNode>(new TimeLimitNode(
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"shadeRun",
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action("walkToShade",
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[](BehaviorContext& ctx) {
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Vec3i shade = ctx.blackboard.cell("shadeCell");
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if (!planRouteTo(ctx, shade, false)) {
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ctx.agent->sheltered = cellIsShaded(*ctx.world, ctx.agent->cell());
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return ctx.agent->sheltered ? BehaviorStatus::Success
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: BehaviorStatus::Failure;
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}
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BehaviorStatus status = followRouteStep(ctx);
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if (status == BehaviorStatus::Success) {
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ctx.agent->sheltered = cellIsShaded(*ctx.world, ctx.agent->cell());
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}
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return status;
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}),
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tuning.shadeRunTicks)));
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auto hold = std::unique_ptr<SequenceNode>(new SequenceNode("holdShelter"));
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hold->add(condition("daylightNow", [](BehaviorContext& ctx) { return ctx.daylight; }));
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hold->add(action("waitOutDay", [](BehaviorContext& ctx) {
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++ctx.agent->shelterTicks;
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if (ctx.agent->shelterTicks >= ctx.tuning.shelterHoldTicks) return BehaviorStatus::Success;
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return BehaviorStatus::Running;
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}));
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auto root = std::unique_ptr<SelectorNode>(new SelectorNode("sunAvoiderRoot"));
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root->add(std::move(seekShade));
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root->add(std::move(hold));
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root->add(action("nightPatrol", [](BehaviorContext& ctx) {
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BehaviorAgent& agent = *ctx.agent;
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agent.shelterTicks = 0;
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if (length(agent.heading) < 1e-3f || behaviorNextRandom(agent.rng) % 24u == 0u)
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agent.heading = horizontalHeading(agent.rng);
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stepTowardPoint(agent, agent.position + agent.heading * 2.0f, ctx.tuning.arriveEpsilon);
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return BehaviorStatus::Success;
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}));
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return BehaviorTree(std::move(root));
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}
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BehaviorTree makeTreeForRole(BehaviorRole role, const BehaviorTuning& tuning) {
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switch (role) {
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case BehaviorRole::HostileHunter: return makeHostileHunterTree(tuning);
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case BehaviorRole::SunAvoider: return makeSunAvoiderTree(tuning);
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default: return makeGrazingAnimalTree(tuning);
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}
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}
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} // namespace vf
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