summaryrefslogtreecommitdiffstats
path: root/src/Entities/SplashPotionEntity.cpp
blob: 35afe0fea3d7c1963db4a9e393355ada55ed8c44 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
#include "Globals.h"  // NOTE: MSVC stupidness requires this to be the same across all modules

#include "SplashPotionEntity.h"
#include "Pawn.h"
#include "../ClientHandle.h"
#include "../EffectID.h"





/** Converts an angle in radians into a byte representation used by the network protocol */
#define ANGLE_TO_PROTO(X) static_cast<Byte>(X * 255 / 360)





////////////////////////////////////////////////////////////////////////////////
// cSplashPotionEntity:

cSplashPotionEntity::cSplashPotionEntity(
	cEntity * a_Creator,
	double a_X, double a_Y, double a_Z,
	const Vector3d & a_Speed,
	const cItem & a_Item
) :
	super(pkSplashPotion, a_Creator, a_X, a_Y, a_Z, 0.25, 0.25),
	m_Item(a_Item),
	m_DestroyTimer(-1)
{
	SetSpeed(a_Speed);
	m_EntityEffectType = cEntityEffect::GetPotionEffectType(a_Item.m_ItemDamage);
	m_EntityEffect = cEntityEffect(
		cEntityEffect::GetPotionEffectDuration(a_Item.m_ItemDamage),
		cEntityEffect::GetPotionEffectIntensity(a_Item.m_ItemDamage)
	);
	m_PotionColor = cEntityEffect::GetPotionColor(a_Item.m_ItemDamage);
}





void cSplashPotionEntity::OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_HitFace)
{
	Splash(a_HitPos);
	m_DestroyTimer = 2;
}





void cSplashPotionEntity::OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_HitPos)
{
	a_EntityHit.TakeDamage(dtRangedAttack, this, 0, 1);
	Splash(a_HitPos);
	m_DestroyTimer = 5;
}





void cSplashPotionEntity::Splash(const Vector3d & a_HitPos)
{
	m_World->ForEachEntity([=](cEntity & a_Entity)
		{
			if (!a_Entity.IsPawn())
			{
				// Not an entity that can take effects
				return false;
			}

			double SplashDistance = (a_Entity.GetPosition() - a_HitPos).Length();
			if (SplashDistance >= 20)
			{
				// Too far away
				return false;
			}

			// y = -0.25x + 1, where x is the distance from the player. Approximation for potion splash.
			// TODO: better equation
			double Reduction = -0.25 * SplashDistance + 1.0;
			Reduction = std::max(Reduction, 0.0);

			static_cast<cPawn &>(a_Entity).AddEntityEffect(m_EntityEffectType, m_EntityEffect.GetDuration(), m_EntityEffect.GetIntensity(), Reduction);
			return false;
		}
	);

	m_World->BroadcastSoundParticleEffect(
		EffectID::PARTICLE_SPLASH_POTION,
		FloorC(a_HitPos.x),
		FloorC(a_HitPos.y),
		FloorC(a_HitPos.z),
		m_PotionColor
	);
}





void cSplashPotionEntity::SpawnOn(cClientHandle & a_Client)
{
	a_Client.SendSpawnObject(*this, 73, m_PotionColor, ANGLE_TO_PROTO(GetYaw()), ANGLE_TO_PROTO(GetPitch()));
	a_Client.SendEntityMetadata(*this);
}