mirror of
https://github.com/Kelsidavis/WoWee.git
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e163813dee
Implements charge rush-to-target for spell IDs 100/6178/11578 with smoothstep lerp movement, vertical red-orange ribbon trail, dust puffs, client-side range validation, and sound fallback chain.
107 lines
3 KiB
C++
107 lines
3 KiB
C++
#pragma once
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#include <GL/glew.h>
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#include <glm/glm.hpp>
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#include <memory>
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#include <vector>
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#include <deque>
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#include <cstdint>
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namespace wowee {
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namespace pipeline { class AssetManager; }
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namespace rendering {
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class Camera;
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class Shader;
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class M2Renderer;
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/// Renders a red-orange ribbon streak trailing behind the warrior during Charge,
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/// plus small dust puffs at ground level.
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class ChargeEffect {
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public:
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ChargeEffect();
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~ChargeEffect();
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bool initialize();
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void shutdown();
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/// Try to load M2 spell models (Charge_Caster.m2, etc.)
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void tryLoadM2Models(M2Renderer* m2Renderer, pipeline::AssetManager* assets);
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/// Start the trail (call once when charge begins)
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void start(const glm::vec3& position, const glm::vec3& direction);
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/// Feed current position each frame while charging
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void emit(const glm::vec3& position, const glm::vec3& direction);
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/// Stop adding trail points (existing ribbon fades out)
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void stop();
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/// Spawn M2 impact burst at target position
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void triggerImpact(const glm::vec3& position);
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void update(float deltaTime);
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void render(const Camera& camera);
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bool isActive() const { return emitting_ || !trail_.empty() || !dustPuffs_.empty(); }
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private:
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// --- Ribbon trail ---
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struct TrailPoint {
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glm::vec3 center; // World position of trail spine
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glm::vec3 side; // Perpendicular direction (for ribbon width)
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float age; // Seconds since spawned
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};
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static constexpr int MAX_TRAIL_POINTS = 64;
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static constexpr float TRAIL_LIFETIME = 0.5f; // Seconds before trail point fades
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static constexpr float TRAIL_HALF_WIDTH = 0.8f; // Half-width of ribbon
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static constexpr float TRAIL_SPAWN_DIST = 0.4f; // Min distance between trail points
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std::deque<TrailPoint> trail_;
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GLuint ribbonVao_ = 0;
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GLuint ribbonVbo_ = 0;
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std::unique_ptr<Shader> ribbonShader_;
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std::vector<float> ribbonVerts_; // pos(3) + alpha(1) + heat(1) = 5 floats per vert
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// --- Dust puffs (small point sprites at feet) ---
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struct DustPuff {
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glm::vec3 position;
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glm::vec3 velocity;
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float lifetime;
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float maxLifetime;
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float size;
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float alpha;
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};
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static constexpr int MAX_DUST = 80;
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std::vector<DustPuff> dustPuffs_;
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GLuint dustVao_ = 0;
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GLuint dustVbo_ = 0;
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std::unique_ptr<Shader> dustShader_;
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std::vector<float> dustVerts_;
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bool emitting_ = false;
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glm::vec3 lastEmitPos_{0.0f};
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float dustAccum_ = 0.0f;
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// --- M2 spell effect models (optional) ---
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static constexpr uint32_t CASTER_MODEL_ID = 999800;
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static constexpr uint32_t IMPACT_MODEL_ID = 999801;
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static constexpr float M2_EFFECT_DURATION = 2.0f;
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M2Renderer* m2Renderer_ = nullptr;
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bool casterModelLoaded_ = false;
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bool impactModelLoaded_ = false;
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uint32_t activeCasterInstanceId_ = 0;
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struct ActiveM2 {
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uint32_t instanceId;
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float elapsed;
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};
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std::vector<ActiveM2> activeImpacts_;
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};
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} // namespace rendering
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} // namespace wowee
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