1/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
2/* If you are missing that file, acquire a complete release at teeworlds.com. */
3
4#include "projectile_data.h"
5
6#include <base/dbg.h>
7#include <base/log.h>
8
9#include <engine/shared/snapshot.h>
10
11#include <generated/protocol.h>
12
13#include <game/client/prediction/gameworld.h>
14#include <game/collision.h>
15
16static bool UseProjectileExtraInfo(const CNetObj_Projectile *pProj)
17{
18 return pProj->m_VelY >= 0 && (pProj->m_VelY & LEGACYPROJECTILEFLAG_IS_DDNET) != 0;
19}
20
21CProjectileData ExtractProjectileInfo(int NetObjType, const void *pData, CGameWorld *pGameWorld, const CNetObj_EntityEx *pEntEx)
22{
23 CNetObj_Projectile *pProj = (CNetObj_Projectile *)pData;
24
25 if(NetObjType == NETOBJTYPE_DDNETPROJECTILE)
26 {
27 return ExtractProjectileInfoDDNet(pProj: (CNetObj_DDNetProjectile *)pData);
28 }
29 else if(NetObjType == NETOBJTYPE_DDRACEPROJECTILE || (NetObjType == NETOBJTYPE_PROJECTILE && UseProjectileExtraInfo(pProj)))
30 {
31 return ExtractProjectileInfoDDRace(pProj: (CNetObj_DDRaceProjectile *)pData, pGameWorld, pEntEx);
32 }
33
34 CProjectileData Result;
35 Result.m_StartPos.x = pProj->m_X;
36 Result.m_StartPos.y = pProj->m_Y;
37 Result.m_StartVel.x = pProj->m_VelX / 100.0f;
38 Result.m_StartVel.y = pProj->m_VelY / 100.0f;
39 Result.m_Type = pProj->m_Type;
40 Result.m_StartTick = pProj->m_StartTick;
41 Result.m_ExtraInfo = false;
42 Result.m_Owner = -1;
43 Result.m_TuneZone = pGameWorld && pGameWorld->m_WorldConfig.m_UseTuneZones ? pGameWorld->Collision()->IsTune(Index: pGameWorld->Collision()->GetMapIndex(Pos: Result.m_StartPos)) : 0;
44 Result.m_SwitchNumber = pEntEx ? pEntEx->m_SwitchNumber : 0;
45 return Result;
46}
47
48CProjectileData ExtractProjectileInfoDDRace(const CNetObj_DDRaceProjectile *pProj, CGameWorld *pGameWorld, const CNetObj_EntityEx *pEntEx)
49{
50 CProjectileData Result;
51
52 Result.m_StartPos.x = pProj->m_X / 100.0f;
53 Result.m_StartPos.y = pProj->m_Y / 100.0f;
54 float Angle = pProj->m_Angle / 1000000.0f;
55 Result.m_StartVel.x = std::sin(x: -Angle);
56 Result.m_StartVel.y = std::cos(x: -Angle);
57 Result.m_Type = pProj->m_Type;
58 Result.m_StartTick = pProj->m_StartTick;
59
60 Result.m_ExtraInfo = true;
61 Result.m_Owner = pProj->m_Data & 255;
62 if(pProj->m_Data & LEGACYPROJECTILEFLAG_NO_OWNER || Result.m_Owner < 0 || Result.m_Owner >= MAX_CLIENTS)
63 {
64 Result.m_Owner = -1;
65 }
66 // LEGACYPROJECTILEFLAG_BOUNCE_HORIZONTAL, LEGACYPROJECTILEFLAG_BOUNCE_VERTICAL
67 Result.m_Bouncing = (pProj->m_Data >> 10) & 3;
68 Result.m_Explosive = pProj->m_Data & LEGACYPROJECTILEFLAG_EXPLOSIVE;
69 Result.m_Freeze = pProj->m_Data & LEGACYPROJECTILEFLAG_FREEZE;
70 Result.m_TuneZone = pGameWorld && pGameWorld->m_WorldConfig.m_UseTuneZones ? pGameWorld->Collision()->IsTune(Index: pGameWorld->Collision()->GetMapIndex(Pos: Result.m_StartPos)) : 0;
71 Result.m_SwitchNumber = pEntEx ? pEntEx->m_SwitchNumber : 0;
72 return Result;
73}
74
75CProjectileData ExtractProjectileInfoDDNet(const CNetObj_DDNetProjectile *pProj)
76{
77 CProjectileData Result;
78
79 Result.m_StartPos = vec2(pProj->m_X / 100.0f, pProj->m_Y / 100.0f);
80 Result.m_StartVel = pProj->m_Owner < 0 ? vec2(pProj->m_VelX, pProj->m_VelY) / 1e6f : vec2(pProj->m_VelX, pProj->m_VelY);
81
82 if(pProj->m_Flags & PROJECTILEFLAG_NORMALIZE_VEL)
83 {
84 Result.m_StartVel = normalize(v: Result.m_StartVel);
85 }
86
87 Result.m_Type = pProj->m_Type;
88 Result.m_StartTick = pProj->m_StartTick;
89
90 Result.m_ExtraInfo = true;
91 Result.m_Owner = pProj->m_Owner;
92 Result.m_SwitchNumber = pProj->m_SwitchNumber;
93 Result.m_TuneZone = pProj->m_TuneZone;
94
95 Result.m_Bouncing = 0;
96 if(pProj->m_Flags & PROJECTILEFLAG_BOUNCE_HORIZONTAL)
97 {
98 Result.m_Bouncing |= 1;
99 }
100 if(pProj->m_Flags & PROJECTILEFLAG_BOUNCE_VERTICAL)
101 {
102 Result.m_Bouncing |= 2;
103 }
104
105 Result.m_Explosive = pProj->m_Flags & PROJECTILEFLAG_EXPLOSIVE;
106 Result.m_Freeze = pProj->m_Flags & PROJECTILEFLAG_FREEZE;
107
108 return Result;
109}
110
111void DemoObjectRemoveExtraProjectileInfo(CNetObj_Projectile *pProj)
112{
113 if(UseProjectileExtraInfo(pProj))
114 {
115 CProjectileData Data = ExtractProjectileInfo(NetObjType: NETOBJTYPE_PROJECTILE, pData: pProj, pGameWorld: nullptr, pEntEx: nullptr);
116 pProj->m_X = Data.m_StartPos.x;
117 pProj->m_Y = Data.m_StartPos.y;
118 pProj->m_VelX = (int)(Data.m_StartVel.x * 100.0f);
119 pProj->m_VelY = (int)(Data.m_StartVel.y * 100.0f);
120 }
121}
122