mirror of https://github.com/nmlgc/ReC98.git
75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
/// Constants
|
|
/// ---------
|
|
|
|
static const int MISSILE_COUNT = 50;
|
|
|
|
static const pixel_t MISSILE_W = PTN_QUARTER_W;
|
|
static const pixel_t MISSILE_H = PTN_QUARTER_H;
|
|
|
|
// Missiles explode when reaching these coordinates.
|
|
static const screen_x_t MISSILE_LEFT_MIN = PLAYFIELD_LEFT;
|
|
static const screen_y_t MISSILE_TOP_MIN = PLAYFIELD_TOP;
|
|
static const screen_x_t MISSILE_LEFT_MAX = (PLAYFIELD_RIGHT - MISSILE_W);
|
|
static const screen_y_t MISSILE_TOP_MAX = (PLAYFIELD_BOTTOM - 1);
|
|
|
|
// Indicates that this missile hasn't been rendered before. Should not exist,
|
|
// because there's already Subpixel::None() for that.
|
|
static const subpixel_t MISSILE_NEW = -1;
|
|
/// ---------
|
|
|
|
// Sprites
|
|
// -------
|
|
|
|
static const int MISSILE_CELS = 16;
|
|
static const int MISSILE_PTNS = (MISSILE_CELS / 4);
|
|
|
|
static const int MISSILE_HIT_IMAGE = (MISSILE_CELS / 4);
|
|
static const int MISSILE_HIT_CELS = 2;
|
|
// -------
|
|
|
|
enum missile_flag_t {
|
|
MF_FREE = 0,
|
|
MF_MOVING = 1,
|
|
MF_HIT = 2,
|
|
MF_HIT_last = (MF_HIT + MISSILE_HIT_CELS - 1),
|
|
|
|
_missile_flag_t_FORCE_UINT8 = 0xFF
|
|
};
|
|
|
|
class CMissiles {
|
|
Subpixel cur_left[MISSILE_COUNT];
|
|
Subpixel cur_top[MISSILE_COUNT];
|
|
Subpixel prev_left[MISSILE_COUNT];
|
|
Subpixel prev_top[MISSILE_COUNT];
|
|
Subpixel velocity_x[MISSILE_COUNT];
|
|
Subpixel velocity_y[MISSILE_COUNT];
|
|
int16_t unused[MISSILE_COUNT];
|
|
int8_t unknown[MISSILE_COUNT];
|
|
uint8_t ptn_id_base; // main_ptn_id_t. Very bold to limit this to 8 bits!
|
|
missile_flag_t flag[MISSILE_COUNT];
|
|
|
|
protected:
|
|
// Calculates the current [ptn_id] and [quarter] for the missile at the
|
|
// given index.
|
|
void ptn_cel_for(int i, main_ptn_id_t& ptn_id, int& quarter) const;
|
|
|
|
public:
|
|
// Loads the missile sprites into the given .PTN [slot].
|
|
void load(main_ptn_slot_t slot) {
|
|
ptn_load(slot, "boss3_m.ptn");
|
|
ptn_id_base = PTN_ID(slot, 0);
|
|
}
|
|
|
|
// Spawns a new missile if there is a free slot left. [velocity_x] and
|
|
// [velocity_y] are limited to Subpixel resolution.
|
|
void add(
|
|
screen_x_t left, screen_x_t top, double velocity_x, double velocity_y,
|
|
int8_t unknown = 0
|
|
);
|
|
|
|
void reset(void);
|
|
void unput_update_render(void);
|
|
};
|
|
|
|
extern CMissiles Missiles;
|