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WIP for NPC spell push, off by default for now

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Michael Cook (mackal)
2018-03-07 16:50:24 -05:00
parent 0d63c8b9ef
commit ae966e546b
8 changed files with 94 additions and 18 deletions
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zone/mob_ai.cpp
+66
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@@ -29,12 +29,16 @@
#include "quest_parser_collection.h"
#include "string_ids.h"
#include "water_map.h"
#include "fastmath.h"
#include <glm/gtx/projection.hpp>
#include <algorithm>
#include <iostream>
#include <limits>
#include <math.h>
extern EntityList entity_list;
extern FastMath g_Math;
extern Zone *zone;
@@ -953,6 +957,68 @@ void Mob::AI_Process() {
if (!(AI_think_timer->Check() || attack_timer.Check(false)))
return;
// we are being pushed, we will hijack this movement timer
// this also needs to be done before casting to have a chance to interrupt
// this flag won't be set if the mob can't be pushed (rooted etc)
if (ForcedMovement && AI_movement_timer->Check()) {
bool bPassed = true;
auto z_off = GetZOffset();
glm::vec3 normal;
glm::vec3 new_pos = m_Position + m_Delta;
new_pos.z += z_off;
// no zone map = fucked
if (zone->HasMap()) {
// in front
m_CollisionBox[0].x = m_Position.x + 3.0f * g_Math.FastSin(0.0f);
m_CollisionBox[0].y = m_Position.y + 3.0f * g_Math.FastCos(0.0f);
m_CollisionBox[0].z = m_Position.z + z_off;
// to right
m_CollisionBox[1].x = m_Position.x + 3.0f * g_Math.FastSin(128.0f);
m_CollisionBox[1].y = m_Position.y + 3.0f * g_Math.FastCos(128.0f);
m_CollisionBox[1].z = m_Position.z + z_off;
// behind
m_CollisionBox[2].x = m_Position.x + 3.0f * g_Math.FastSin(256.0f);
m_CollisionBox[2].y = m_Position.y + 3.0f * g_Math.FastCos(256.0f);
m_CollisionBox[2].z = m_Position.z + z_off;
// to left
m_CollisionBox[3].x = m_Position.x + 3.0f * g_Math.FastSin(384.0f);
m_CollisionBox[3].y = m_Position.y + 3.0f * g_Math.FastCos(384.0f);
m_CollisionBox[3].z = m_Position.z + z_off;
// collision happened, need to move along the wall
float distance = 0.0f, shortest = std::numeric_limits<float>::infinity();
glm::vec3 tmp_nrm;
for (auto &vec : m_CollisionBox) {
if (zone->zonemap->DoCollisionCheck(vec, new_pos, tmp_nrm, distance)) {
bPassed = false; // lets try with new projection next pass
if (distance < shortest) {
normal = tmp_nrm;
shortest = distance;
}
}
}
}
if (bPassed) {
ForcedMovement = 0;
m_Delta = glm::vec4();
Teleport(new_pos);
SendPositionUpdate();
pLastChange = Timer::GetCurrentTime();
} else if (--ForcedMovement) {
auto proj = glm::proj(static_cast<glm::vec3>(m_Delta), normal);
m_Delta.x -= proj.x;
m_Delta.y -= proj.y;
m_Delta.z -= proj.z;
} else {
m_Delta = glm::vec4(); // well, we failed to find a spot to be forced to, lets give up
}
}
if (IsCasting())
return;