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55 lines
1.5 KiB
55 lines
1.5 KiB
#include "player.h"
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#include "actor.h"
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#include "game.h"
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#include "sdk/joypad.h"
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#define PLAYER_SPEED 2
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#define GRAVITY 0x002e //!< 0.18
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#define PLAYER_INIT_JUMP_VY 0x0399 //!< 3.6
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#define PLAYER_INIT_FALL_VY 0xff1a //!< -1.1015625
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#define MAX_VY 0xf900 //!< -7.0
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player_t PLAYER;
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void player_update(void) {
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if ((joypad_pressed & PAD_UP) && PLAYER.state != PLAYER_STATE_JUMP) {
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PLAYER.state = PLAYER_STATE_JUMP;
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PLAYER.vy = PLAYER_INIT_JUMP_VY;
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}
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if (PLAYER.state == PLAYER_STATE_JUMP) {
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PLAYER.vy -= GRAVITY;
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PLAYER.y -= PLAYER.vy;
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if (player_bg_collides()) {
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PLAYER.y += PLAYER.vy;
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if (PLAYER.vy & (1 << 15)) {
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PLAYER.state = PLAYER_STATE_WALK;
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}
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PLAYER.vy = 0;
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}
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}
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if ((joypad_state & PAD_RIGHT) && PLAYER.x + TILE_WIDTH * 2 > SCRN_X) {
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PLAYER.dir = DIR_RIGHT;
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PLAYER.x += PLAYER_SPEED;
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if (player_bg_collides()) {
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PLAYER.x -= PLAYER_SPEED;
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}
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} else if ((joypad_state & PAD_LEFT) && PLAYER.x > 0) {
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PLAYER.dir = DIR_LEFT;
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PLAYER.x -= PLAYER_SPEED;
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if (player_bg_collides()) {
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PLAYER.x += PLAYER_SPEED;
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}
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}
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if (player_in_air() && PLAYER.state != PLAYER_STATE_JUMP) {
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PLAYER.state = PLAYER_STATE_JUMP;
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PLAYER.vy = PLAYER_INIT_FALL_VY;
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}
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PLAYER_ACTOR->x = PLAYER.x;
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PLAYER_ACTOR->y = PLAYER.y;
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}
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