1 /*****************************************************************************
2 * Copyright (c) 2014-2020 OpenRCT2 developers
3 *
4 * For a complete list of all authors, please refer to contributors.md
5 * Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
6 *
7 * OpenRCT2 is licensed under the GNU General Public License version 3.
8 *****************************************************************************/
9
10 #include "../../interface/Viewport.h"
11 #include "../../paint/Paint.h"
12 #include "../../paint/Supports.h"
13 #include "../../world/Entity.h"
14 #include "../Track.h"
15 #include "../TrackPaint.h"
16 #include "../Vehicle.h"
17
18 /** rct2: 0x0142805C */
19 static constexpr const uint32_t merry_go_round_rider_offsets[] = {
20 0, 32, 64, 96, 16, 48, 80, 112,
21 };
22
23 /** rct2: 0x0142807C */
24 static constexpr const uint16_t merry_go_round_breakdown_vibration[] = {
25 0, 1, 2, 3, 4, 3, 2, 1, 0, 0,
26 };
27
28 /**
29 * rct2: 0x0076287D
30 */
paint_merry_go_round_structure(paint_session * session,const Ride * ride,uint8_t direction,int8_t xOffset,int8_t yOffset,uint16_t height)31 static void paint_merry_go_round_structure(
32 paint_session* session, const Ride* ride, uint8_t direction, int8_t xOffset, int8_t yOffset, uint16_t height)
33 {
34 const TileElement* savedTileElement = static_cast<const TileElement*>(session->CurrentlyDrawnItem);
35 height += 7;
36
37 if (ride == nullptr)
38 return;
39
40 auto rideEntry = ride->GetRideEntry();
41 if (rideEntry == nullptr)
42 return;
43
44 uint32_t baseImageId = rideEntry->vehicles[0].base_image_id;
45 auto vehicle = GetEntity<Vehicle>(ride->vehicles[0]);
46 if (ride->lifecycle_flags & RIDE_LIFECYCLE_ON_TRACK && vehicle != nullptr)
47 {
48 session->InteractionType = ViewportInteractionItem::Entity;
49 session->CurrentlyDrawnItem = vehicle;
50
51 if (ride->lifecycle_flags & (RIDE_LIFECYCLE_BREAKDOWN_PENDING | RIDE_LIFECYCLE_BROKEN_DOWN)
52 && ride->breakdown_reason_pending == BREAKDOWN_CONTROL_FAILURE && ride->breakdown_sound_modifier >= 128)
53 {
54 height += merry_go_round_breakdown_vibration[(vehicle->current_time >> 1) & 7];
55 }
56 }
57
58 uint32_t rotationOffset = 0;
59 if (vehicle != nullptr)
60 {
61 uint32_t rotation = ((vehicle->sprite_direction >> 3) + session->CurrentRotation) << 5;
62 rotationOffset = (vehicle->Pitch + rotation) % 128;
63 }
64
65 uint32_t imageOffset = rotationOffset & 0x1F;
66
67 uint32_t imageColourFlags = session->TrackColours[SCHEME_MISC];
68 if (imageColourFlags == IMAGE_TYPE_REMAP)
69 {
70 imageColourFlags = SPRITE_ID_PALETTE_COLOUR_2(ride->vehicle_colours[0].Body, ride->vehicle_colours[0].Trim);
71 }
72
73 uint32_t imageId = (baseImageId + imageOffset) | imageColourFlags;
74 PaintAddImageAsParent(
75 session, imageId, { xOffset, yOffset, height }, { 24, 24, 48 }, { xOffset + 16, yOffset + 16, height });
76
77 rct_drawpixelinfo* dpi = &session->DPI;
78 if (dpi->zoom_level <= 0 && ride->lifecycle_flags & RIDE_LIFECYCLE_ON_TRACK && vehicle != nullptr)
79 {
80 for (int32_t peep = 0; peep <= 14; peep += 2)
81 {
82 if (vehicle->num_peeps <= peep)
83 {
84 break;
85 }
86
87 imageOffset = (merry_go_round_rider_offsets[peep / 2] + rotationOffset) % 128;
88 imageOffset -= 13;
89
90 if (imageOffset >= 68)
91 {
92 continue;
93 }
94
95 imageColourFlags = SPRITE_ID_PALETTE_COLOUR_2(
96 vehicle->peep_tshirt_colours[peep], vehicle->peep_tshirt_colours[peep + 1]);
97 imageId = (baseImageId + 32 + imageOffset) | imageColourFlags;
98 PaintAddImageAsChild(session, imageId, xOffset, yOffset, 24, 24, 48, height, xOffset + 16, yOffset + 16, height);
99 }
100 }
101
102 session->CurrentlyDrawnItem = savedTileElement;
103 session->InteractionType = ViewportInteractionItem::Ride;
104 }
105
106 /**
107 * rct2: 0x00761B0C
108 */
paint_merry_go_round(paint_session * session,const Ride * ride,uint8_t trackSequence,uint8_t direction,int32_t height,const TrackElement & trackElement)109 static void paint_merry_go_round(
110 paint_session* session, const Ride* ride, uint8_t trackSequence, uint8_t direction, int32_t height,
111 const TrackElement& trackElement)
112 {
113 trackSequence = track_map_3x3[direction][trackSequence];
114
115 int32_t edges = edges_3x3[trackSequence];
116
117 wooden_a_supports_paint_setup(session, (direction & 1), 0, height, session->TrackColours[SCHEME_MISC]);
118
119 StationObject* stationObject = nullptr;
120 if (ride != nullptr)
121 stationObject = ride_get_station_object(ride);
122
123 track_paint_util_paint_floor(session, edges, session->TrackColours[SCHEME_TRACK], height, floorSpritesCork, stationObject);
124
125 if (ride != nullptr)
126 {
127 track_paint_util_paint_fences(
128 session, edges, session->MapPosition, trackElement, ride, session->TrackColours[SCHEME_MISC], height,
129 fenceSpritesRope, session->CurrentRotation);
130 }
131
132 switch (trackSequence)
133 {
134 case 1:
135 paint_merry_go_round_structure(session, ride, direction, 32, 32, height);
136 break;
137 case 3:
138 paint_merry_go_round_structure(session, ride, direction, 32, -32, height);
139 break;
140 case 5:
141 paint_merry_go_round_structure(session, ride, direction, 0, -32, height);
142 break;
143 case 6:
144 paint_merry_go_round_structure(session, ride, direction, -32, 32, height);
145 break;
146 case 7:
147 paint_merry_go_round_structure(session, ride, direction, -32, -32, height);
148 break;
149 case 8:
150 paint_merry_go_round_structure(session, ride, direction, -32, 0, height);
151 break;
152 }
153
154 int32_t cornerSegments = 0;
155 switch (trackSequence)
156 {
157 case 1:
158 // top
159 cornerSegments = SEGMENT_B4 | SEGMENT_C8 | SEGMENT_CC;
160 break;
161 case 3:
162 // right
163 cornerSegments = SEGMENT_CC | SEGMENT_BC | SEGMENT_D4;
164 break;
165 case 6:
166 // left
167 cornerSegments = SEGMENT_C8 | SEGMENT_B8 | SEGMENT_D0;
168 break;
169 case 7:
170 // bottom
171 cornerSegments = SEGMENT_D0 | SEGMENT_C0 | SEGMENT_D4;
172 break;
173 }
174
175 paint_util_set_segment_support_height(session, cornerSegments, height + 2, 0x20);
176 paint_util_set_segment_support_height(session, SEGMENTS_ALL & ~cornerSegments, 0xFFFF, 0);
177 paint_util_set_general_support_height(session, height + 64, 0x20);
178 }
179
180 /**
181 * rct2: 0x0076190C
182 */
get_track_paint_function_merry_go_round(int32_t trackType)183 TRACK_PAINT_FUNCTION get_track_paint_function_merry_go_round(int32_t trackType)
184 {
185 if (trackType != TrackElemType::FlatTrack3x3)
186 {
187 return nullptr;
188 }
189
190 return paint_merry_go_round;
191 }
192