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Draw water bottom

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This commit is contained in:
Marijn van der Werf 2016-04-30 13:37:21 +02:00
parent 8b64f29dd0
commit ec80cbe6c8
1 changed files with 135 additions and 23 deletions
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154
src/interface/paint_surface.c
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@ -815,55 +815,167 @@ void viewport_surface_draw_water_side_top(enum edge edge, uint8 height, uint8 te
/**
* rct2: 0x0065F8B9, 0x0065FE26
*/
void viewport_surface_draw_water_side_bottom(enum edge edge, uint8 height, uint8 terrain, struct tile_descriptor self, struct tile_descriptor neighbour)
void viewport_surface_draw_water_side_bottom(enum edge edge, uint8 height, uint8 edgeStyle, struct tile_descriptor self, struct tile_descriptor neighbour)
{
uint32 baseImageId;
registers regs;
rct_xy8 offset = {0, 0};
rct_xy8 bounds = {0, 0};
rct_xy16 tunnelBounds = {1, 1};
rct_xy16 tunnelTopBoundBoxOffset = {0, 0};
uint32 tunnelArray;
switch (edge) {
case EDGE_BOTTOMLEFT:
baseImageId = 1841;
regs.ah = self.corner_heights.left;
regs.ch = self.corner_heights.bottom;
regs.al = self.corner_heights.left;
regs.cl = self.corner_heights.bottom;
regs.ah = neighbour.corner_heights.top;
regs.ch = neighbour.corner_heights.right;
offset.x = 30;
bounds.y = 30;
tunnelBounds.x = 32;
tunnelTopBoundBoxOffset.y = 31;
tunnelArray = 0x9E3138;
break;
case EDGE_BOTTOMRIGHT:
baseImageId = 1846;
regs.ah = self.corner_heights.right;
regs.ch = self.corner_heights.bottom;
regs.al = self.corner_heights.right;
regs.cl = self.corner_heights.bottom;
regs.ah = neighbour.corner_heights.top;
regs.ch = neighbour.corner_heights.left;
offset.y = 30;
bounds.x = 30;
tunnelBounds.y = 32;
tunnelTopBoundBoxOffset.x = 31;
tunnelArray = 0x009E30B6;
break;
default:
return;
}
if (neighbour.map_element != NULL) {
regs.ah = max(neighbour.map_element->properties.surface.terrain & 0x1F, regs.ah);
regs.ch = max(neighbour.map_element->properties.surface.terrain & 0x1F, regs.ch);
regs.dl = height;
if (neighbour.map_element == 0) {
regs.ch = 1;
regs.ah = 1;
} else {
regs.dh = neighbour.map_element->properties.surface.terrain & 0x1F;
if (regs.dl == regs.dh) {
return;
}
regs.al = regs.dl;
regs.cl = regs.dl;
}
if (regs.al <= regs.ah && regs.cl <= regs.ch) {
return;
}
uint32 base_image_id = stru_97B5C0[edgeStyle][0];
if (gCurrentViewportFlags & VIEWPORT_FLAG_UNDERGROUND_INSIDE) {
base_image_id = stru_97B5C0[edgeStyle][1];
}
if (edge == EDGE_BOTTOMRIGHT) {
base_image_id += 5;
}
uint8 curHeight = min(regs.ah, regs.ch);
uint16 waterHeight = self.map_element->properties.surface.terrain & 0x1F;
if (regs.ch != regs.ah) {
// If bottom part of edge isn't straight, add a filler
uint32 image_offset = 3;
if (regs.ah != regs.ch) {
uint32 imageId;
if (regs.ah < regs.ch) {
imageId = baseImageId + 4;
} else {
imageId = baseImageId + 3;
if (regs.ch >= regs.ah) {
image_offset = 4;
}
sub_98196C(imageId, offset.x, offset.y, bounds.x, bounds.y, 15, curHeight * 16, get_current_rotation());
if (curHeight != regs.al && curHeight != regs.cl) {
uint32 image_id = base_image_id + image_offset;
sub_98196C(image_id, offset.x, offset.y, bounds.x, bounds.y, 15, curHeight * 16, get_current_rotation());
curHeight++;
}
}
while (true) {
if (curHeight >= regs.al || curHeight >= regs.cl) {
// If top of edge isn't straight, add a filler
uint32 image_offset = 1;
if (curHeight >= regs.al) {
image_offset = 2;
if (curHeight >= regs.cl) {
return;
}
}
uint32 image_id = base_image_id + image_offset;
sub_98196C(image_id, offset.x, offset.y, bounds.x, bounds.y, 15, curHeight * 16, get_current_rotation());
return;
}
if (curHeight != RCT2_GLOBAL(tunnelArray, uint8)) {
// Normal walls
while (curHeight > RCT2_GLOBAL(tunnelArray, uint8)) {
for (int offset = 0; offset <= 0x7E; offset += 4) {
RCT2_GLOBAL(tunnelArray + offset, uint32) = RCT2_GLOBAL(tunnelArray + 2 + offset, uint32);
}
}
sub_98196C(base_image_id, offset.x, offset.y, bounds.x, bounds.y, 15, curHeight * 16, get_current_rotation());
while (curHeight < waterHeight) {
sub_98196C(baseImageId, offset.x, offset.y, bounds.x, bounds.y, 15, curHeight * 16, get_current_rotation());
curHeight++;
continue;
}
// Tunnels
uint8 tunnelType = RCT2_GLOBAL(tunnelArray + 1, uint8);
uint8 tunnelHeight = stru_97B570[tunnelType][0];
sint16 zOffset = curHeight;
if ((zOffset + tunnelHeight) > regs.ah || (zOffset + tunnelHeight) > regs.al) {
tunnelType = byte_97B5B0[tunnelType];
}
zOffset *= 16;
sint16 boundBoxOffsetZ = zOffset + word_97B590[tunnelType];
sint8 boundBoxLength = stru_97B570[tunnelType][1] * 16;
if (boundBoxOffsetZ < 16) {
boundBoxOffsetZ += 16;
boundBoxLength -= 16;
}
uint32 image_id = stru_97B640[edgeStyle][tunnelType] + (edge == EDGE_BOTTOMRIGHT ? 2 : 0);
sub_98197C(image_id, offset.x, offset.y, tunnelBounds.x, tunnelBounds.y, boundBoxLength - 1, zOffset, 0, 0, boundBoxOffsetZ, get_current_rotation());
boundBoxOffsetZ = curHeight * 16;
boundBoxLength = stru_97B570[tunnelType][1] * 16;
boundBoxOffsetZ += word_97B590[tunnelType];
if (boundBoxOffsetZ == 0) {
boundBoxOffsetZ += 16;
boundBoxLength -= 16;
}
image_id = stru_97B640[edgeStyle][tunnelType] + (edge == EDGE_BOTTOMRIGHT ? 2 : 0) + 1;
sub_98197C(image_id, offset.x, offset.y, tunnelBounds.x, tunnelBounds.y, boundBoxLength - 1, curHeight * 16, tunnelTopBoundBoxOffset.x, tunnelTopBoundBoxOffset.y, boundBoxOffsetZ, get_current_rotation());
curHeight += stru_97B570[tunnelType][0];
for (int offset = 0; offset <= 0x7E; offset += 4) {
RCT2_GLOBAL(tunnelArray + offset, uint32) = RCT2_GLOBAL(tunnelArray + 2 + offset, uint32);
}
}
}