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smoother NPC pathing. (credit to Haynar from EQMacEmu)

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This commit is contained in:
regneq
2015-05-11 21:42:48 -07:00
parent cc2a60feb2
commit 052f343e4d
7 changed files with 133 additions and 73 deletions
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zone/map.cpp
+36 -1
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@@ -64,7 +64,7 @@ Map::~Map() {
float Map::FindBestZ(glm::vec3 &start, glm::vec3 *result) const {
if (!imp)
return false;
return BEST_Z_INVALID;
glm::vec3 tmp;
if(!result)
@@ -93,6 +93,41 @@ float Map::FindBestZ(glm::vec3 &start, glm::vec3 *result) const {
return BEST_Z_INVALID;
}
float Map::FindClosestZ(glm::vec3 &start, glm::vec3 *result) const {
// Unlike FindBestZ, this method finds the closest Z value above or below the specified point.
//
if (!imp)
return false;
float ClosestZ = BEST_Z_INVALID;
glm::vec3 tmp;
if (!result)
result = &tmp;
glm::vec3 from(start.x, start.y, start.z);
glm::vec3 to(start.x, start.y, BEST_Z_INVALID);
float hit_distance;
bool hit = false;
// first check is below us
hit = imp->rm->raycast((const RmReal*)&from, (const RmReal*)&to, (RmReal*)result, nullptr, &hit_distance);
if (hit) {
ClosestZ = result->z;
}
// Find nearest Z above us
to.z = -BEST_Z_INVALID;
hit = imp->rm->raycast((const RmReal*)&from, (const RmReal*)&to, (RmReal*)result, nullptr, &hit_distance);
if (hit) {
if (abs(from.z - result->z) < abs(ClosestZ - from.z))
return result->z;
}
return ClosestZ;
}
bool Map::LineIntersectsZone(glm::vec3 start, glm::vec3 end, float step, glm::vec3 *result) const {
if(!imp)
return false;