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https://github.com/4jcraft/4jcraft.git
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91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
#include "../../Platform/stdafx.h"
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#include "../../Headers/net.minecraft.world.entity.ai.navigation.h"
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#include "../../Headers/net.minecraft.world.entity.h"
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#include "../../Headers/net.minecraft.world.phys.h"
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#include "LookControl.h"
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LookControl::LookControl(Mob* mob) {
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yMax = xMax = 0.0f;
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hasWanted = false;
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wantedX = wantedY = wantedZ = 0.0;
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this->mob = mob;
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}
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void LookControl::setLookAt(std::shared_ptr<Entity> target, float yMax,
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float xMax) {
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wantedX = target->x;
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if (target->instanceof(eTYPE_LIVINGENTITY))
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wantedY =
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target->y +
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std::dynamic_pointer_cast<LivingEntity>(target)->getHeadHeight();
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else
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wantedY = (target->bb->y0 + target->bb->y1) / 2;
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wantedZ = target->z;
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this->yMax = yMax;
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this->xMax = xMax;
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hasWanted = true;
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}
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void LookControl::setLookAt(double x, double y, double z, float yMax,
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float xMax) {
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wantedX = x;
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wantedY = y;
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wantedZ = z;
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this->yMax = yMax;
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this->xMax = xMax;
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hasWanted = true;
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}
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void LookControl::tick() {
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mob->xRot = 0;
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if (hasWanted) {
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hasWanted = false;
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double xd = wantedX - mob->x;
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double yd = wantedY - (mob->y + mob->getHeadHeight());
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double zd = wantedZ - mob->z;
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double sd = sqrt(xd * xd + zd * zd);
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float yRotD = (float)(atan2(zd, xd) * 180 / PI) - 90;
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float xRotD = (float)-(atan2(yd, sd) * 180 / PI);
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mob->xRot = rotlerp(mob->xRot, xRotD, xMax);
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mob->yHeadRot = rotlerp(mob->yHeadRot, yRotD, yMax);
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} else {
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mob->yHeadRot = rotlerp(mob->yHeadRot, mob->yBodyRot, 10);
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}
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float headDiffBody = Mth::wrapDegrees(mob->yHeadRot - mob->yBodyRot);
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if (!mob->getNavigation()->isDone()) {
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// head clamped to body
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if (headDiffBody < -75) mob->yHeadRot = mob->yBodyRot - 75;
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if (headDiffBody > 75) mob->yHeadRot = mob->yBodyRot + 75;
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}
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}
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float LookControl::rotlerp(float a, float b, float max) {
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float diff = b - a;
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while (diff < -180) diff += 360;
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while (diff >= 180) diff -= 360;
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if (diff > max) {
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diff = max;
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}
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if (diff < -max) {
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diff = -max;
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}
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return a + diff;
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}
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bool LookControl::isHasWanted() { return hasWanted; }
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float LookControl::getYMax() { return yMax; }
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float LookControl::getXMax() { return xMax; }
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double LookControl::getWantedX() { return wantedX; }
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double LookControl::getWantedY() { return wantedY; }
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double LookControl::getWantedZ() { return wantedZ; } |