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Merge pull request #2714 from LRFLEW/sub_69A997 

Decompiled sub_69A997
This commit is contained in:
Duncan 2016-01-16 09:43:31 +00:00
parent e69e384d43 758c2d3d3e
commit 30594f28e9
1 changed files with 88 additions and 9 deletions
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97
src/peep/peep.c
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@ -7133,17 +7133,96 @@ uint8 sub_69A60A(rct_peep* peep){
*
* rct2: 0x0069A997
*/
static int sub_69A997(sint16 x, sint16 y, uint8 z, int test_edge) {
int eax = x, ebx, ecx = y, edx = z, esi, edi = 0xFFFF, ebp = test_edge;
RCT2_CALLFUNC_X(0x0069A997, &eax, &ebx, &ecx, &edx, &esi, &edi, &ebp);
return edi;
static int sub_69A997(sint16 x, sint16 y, uint8 z, uint8 counter, uint16 score, int test_edge) {
x += TileDirectionDelta[test_edge].x;
y += TileDirectionDelta[test_edge].y;
if (--RCT2_GLOBAL(0x00F1AED4, sint32) < 0) return score;
if (++counter > 200) return score;
uint16 x_delta = abs(RCT2_GLOBAL(RCT2_ADDRESS_PEEP_PATHFINDING_GOAL_X, sint16) - x);
uint16 y_delta = abs(RCT2_GLOBAL(RCT2_ADDRESS_PEEP_PATHFINDING_GOAL_Y, sint16) - y);
if (x_delta < y_delta) x_delta >>= 4;
else y_delta >>= 4;
uint16 new_score = x_delta + y_delta;
uint16 z_delta = abs(RCT2_GLOBAL(RCT2_ADDRESS_PEEP_PATHFINDING_GOAL_Z, uint8) - z);
z_delta <<= 1;
new_score += z_delta;
if (new_score < score || (new_score == score && counter < RCT2_GLOBAL(0x00F1AED3, uint8))) {
score = new_score;
RCT2_GLOBAL(0x00F1AED3, uint8) = counter;
if (score == 0) return score;
}
bool found = false;
rct_map_element *path = map_get_first_element_at(x / 32, y / 32);
do {
if (map_element_get_type(path) != MAP_ELEMENT_TYPE_PATH) continue;
uint8 slope_dir;
if (footpath_element_is_sloped(path) &&
(slope_dir = footpath_element_get_slope_direction(path)) != test_edge) {
slope_dir ^= 2;
if (slope_dir != test_edge) continue;
if (path->base_height + 2 != z) continue;
} else {
if (z != path->base_height) continue;
if (footpath_element_is_wide(path)) continue;
}
if ((!footpath_element_is_queue(path) ||
RCT2_GLOBAL(0x00F1AEE1, uint8) != path->properties.path.ride_index) &&
(path->type & RCT2_GLOBAL(0x00F1AEE0, uint8))) continue;
found = true;
break;
} while (map_element_is_last_for_tile(path++));
if (!found) return score;
uint8 edges = path_get_permitted_edges(path);
z = path->base_height;
edges &= ~(1 << (test_edge ^ 2));
test_edge = bitscanforward(edges);
if (test_edge == -1) return score;
edges &= ~(1 << test_edge);
if (edges == 0) {
if (footpath_element_is_sloped(path) &&
footpath_element_get_slope_direction(path) == test_edge) {
z += 2;
}
++RCT2_GLOBAL(0x00F1AEDE, sint16);
return sub_69A997(x, y, z, counter, score, test_edge);
}
if (RCT2_GLOBAL(0x00F1AEDE, sint16) != 0) {
--RCT2_GLOBAL(0x00F1AEDC, sint8);
}
--RCT2_GLOBAL(0x00F1AEDC, sint8);
if (RCT2_GLOBAL(0x00F1AEDC, sint8) < 0) return score;
do {
edges &= ~(1 << test_edge);
int saved_f1aedc = RCT2_GLOBAL(0x00F1AEDC, int);
uint8 height = z;
RCT2_GLOBAL(0x00F1AEDE, sint16) = 0;
if (footpath_element_is_sloped(path) &&
footpath_element_get_slope_direction(path) == test_edge) {
height += 2;
}
sub_69A997(x, y, height, counter, score, test_edge);
RCT2_GLOBAL(0x00F1AEDC, int) = saved_f1aedc;
} while ((test_edge = bitscanforward(edges)) != -1);
return score;
}
/**
*
* rct2: 0x0069A5F0
*/
static int guest_pathfind_choose_direction(sint16 x, sint16 y, sint16 z, rct_peep *peep, rct_map_element *map_element) {
static int guest_pathfind_choose_direction(sint16 x, sint16 y, uint8 z, rct_peep *peep, rct_map_element *map_element) {
RCT2_GLOBAL(0x00F1AEDC, uint8) = sub_69A60A(peep);
uint8 x_goal = RCT2_GLOBAL(RCT2_ADDRESS_PEEP_PATHFINDING_GOAL_X, sint16) / 32;
uint8 y_goal = RCT2_GLOBAL(RCT2_ADDRESS_PEEP_PATHFINDING_GOAL_Y, sint16) / 32;
@ -7183,8 +7262,8 @@ static int guest_pathfind_choose_direction(sint16 x, sint16 y, sint16 z, rct_pee
for (int test_edge = chosen_edge; test_edge != -1; test_edge = bitscanforward(edges)) {
edges &= ~(1 << test_edge);
uint8 height = (uint8)z;
int k = RCT2_GLOBAL(0x00F1AEDC, int);
uint8 height = z;
int saved_f1aedc = RCT2_GLOBAL(0x00F1AEDC, int);
if (footpath_element_is_sloped(dest_map_element) &&
footpath_element_get_slope_direction(dest_map_element) == test_edge)
height += 0x2;
@ -7192,8 +7271,8 @@ static int guest_pathfind_choose_direction(sint16 x, sint16 y, sint16 z, rct_pee
RCT2_GLOBAL(0x00F1AED3, uint8) = 0xFF;
RCT2_GLOBAL(0x00F1AED4, int) = RCT2_GLOBAL(0x00F1AED8, int);
RCT2_GLOBAL(0x00F1AEDE, uint16) = 0;
uint16 score = sub_69A997(x, y, height, test_edge);
RCT2_GLOBAL(0x00F1AEDC, int) = k;
uint16 score = sub_69A997(x, y, height, 0, 0xFFFF, test_edge);
RCT2_GLOBAL(0x00F1AEDC, int) = saved_f1aedc;
if (score < best_score || (score == best_score && RCT2_GLOBAL(0x00F1AED3, uint8) < best_sub)) {
chosen_edge = test_edge;