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Add blocking objects opcodes

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This commit is contained in:
Alexander Batalov 2023-04-20 11:22:47 +03:00
parent 6ca1329720
commit df3ac30de6
1 changed files with 58 additions and 0 deletions
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58
src/sfall_opcodes.cc
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@ -1,5 +1,6 @@
#include "sfall_opcodes.h"
#include "animation.h"
#include "art.h"
#include "combat.h"
#include "debug.h"
@ -496,6 +497,61 @@ static void opRound(Program* program)
programStackPushInteger(program, integerValue);
}
enum BlockType {
BLOCKING_TYPE_BLOCK,
BLOCKING_TYPE_SHOOT,
BLOCKING_TYPE_AI,
BLOCKING_TYPE_SIGHT,
BLOCKING_TYPE_SCROLL,
};
PathBuilderCallback* get_blocking_func(int type)
{
switch (type) {
case BLOCKING_TYPE_SHOOT:
return _obj_shoot_blocking_at;
case BLOCKING_TYPE_AI:
return _obj_ai_blocking_at;
case BLOCKING_TYPE_SIGHT:
return _obj_sight_blocking_at;
default:
return _obj_blocking_at;
}
}
// obj_blocking_line
static void op_make_straight_path(Program* program)
{
int type = programStackPopInteger(program);
int dest = programStackPopInteger(program);
Object* object = static_cast<Object*>(programStackPopPointer(program));
int flags = type == BLOCKING_TYPE_SHOOT ? 32 : 0;
Object* obstacle = nullptr;
_make_straight_path_func(object, object->tile, dest, nullptr, &obstacle, flags, get_blocking_func(type));
programStackPushPointer(program, obstacle);
}
// obj_blocking_tile
static void op_obj_blocking_at(Program* program)
{
int type = programStackPopInteger(program);
int elevation = programStackPopInteger(program);
int tile = programStackPopInteger(program);
PathBuilderCallback* func = get_blocking_func(type);
Object* obstacle = func(NULL, tile, elevation);
if (obstacle != NULL) {
if (type == BLOCKING_TYPE_SHOOT) {
if ((obstacle->flags & OBJECT_SHOOT_THRU) != 0) {
obstacle = nullptr;
}
}
}
programStackPushPointer(program, obstacle);
}
// art_exists
static void opArtExists(Program* program)
{
@ -570,6 +626,8 @@ void sfallOpcodesInit()
interpreterRegisterOpcode(0x8263, op_power);
interpreterRegisterOpcode(0x826B, opGetMessage);
interpreterRegisterOpcode(0x8267, opRound);
interpreterRegisterOpcode(0x826E, op_make_straight_path);
interpreterRegisterOpcode(0x826F, op_obj_blocking_at);
interpreterRegisterOpcode(0x8274, opArtExists);
interpreterRegisterOpcode(0x827F, op_div);
}