113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
|
|
#include "player.h"
|
|
#include "entity.h"
|
|
#include "app.h"
|
|
#include "input.h"
|
|
|
|
#include "types.h"
|
|
#include "util/assert.h"
|
|
#include <stdlib.h>
|
|
|
|
|
|
static inline double dabs(double x) {
|
|
return x < 0.0 ? -x : x;
|
|
}
|
|
|
|
|
|
System_Player *player_NewSystem(App *super) {
|
|
System_Player *sys = malloc(sizeof(System_Player));
|
|
sys->super = super;
|
|
sys->player = NULL;
|
|
return sys;
|
|
}
|
|
void player_DeleteSystem(System_Player *sys) {
|
|
free(sys);
|
|
}
|
|
|
|
static void _player_OnHit(Entity *me, Entity *other, Vec2 triedDelta, void *data) {
|
|
ASSERT(me->player && "_player_OnHit called with ME as non-player");
|
|
// Moving down
|
|
if (triedDelta.y > 0)
|
|
me->player->onGround = true;
|
|
}
|
|
|
|
|
|
void player_AddEntity(System_Player *sys, Entity *e) {
|
|
if (e->player) {
|
|
ASSERT(!sys->player && "Two player entities are added! Did you forget to DeleteEntity for player?");
|
|
sys->player = e->player;
|
|
|
|
ASSERT(e->hitbox && "Player does not have Hitbox component");
|
|
e->hitbox->onHit = &_player_OnHit;
|
|
}
|
|
}
|
|
void player_DeleteEntity(System_Player *sys, uintptr_t id) {
|
|
if (sys->player && sys->player->super->id == id)
|
|
sys->player = NULL;
|
|
}
|
|
|
|
|
|
static double walkSpeed = 300.0, jumpSpeed = 800.0, dashSpeed = 1500.0;
|
|
static int airjumpCount = 1, airdashCount = 1;
|
|
static Duration dashLength = {.microseconds = 150000}, dashCooldown = {.microseconds = 400000};
|
|
|
|
void player_Advance(System_Player *sys, Duration deltaTime) {
|
|
if (!sys->player)
|
|
return;
|
|
// The bulk of player logic right here
|
|
System_Input *input = sys->super->input;
|
|
|
|
if (sys->player->faceDirection != 1 && sys->player->faceDirection != -1)
|
|
sys->player->faceDirection = 1; // Face right by default
|
|
|
|
|
|
double targetVecX = 0.0;
|
|
// Move left/right
|
|
if (input_IsPressed(input->keys[input_Key_Left])) {
|
|
sys->player->faceDirection = -1;
|
|
targetVecX += -walkSpeed;
|
|
}
|
|
if (input_IsPressed(input->keys[input_Key_Right])) {
|
|
sys->player->faceDirection = 1;
|
|
targetVecX += walkSpeed;
|
|
}
|
|
sys->player->super->position->velocity.x = targetVecX;
|
|
|
|
|
|
// Jump
|
|
if (sys->player->onGround)
|
|
sys->player->jumpCount = 0;
|
|
if (sys->super->input->keys[input_Key_Jump] == JustPressed ||
|
|
(sys->super->input->keys[input_Key_Jump] == Pressed && dabs(sys->player->super->position->velocity.y) < 5)) {
|
|
if (sys->player->onGround || sys->player->jumpCount < airjumpCount) {
|
|
sys->player->storedSpeedY = -jumpSpeed;
|
|
if (!sys->player->onGround) // Took the second clause, airjumped
|
|
sys->player->jumpCount++;
|
|
}
|
|
}
|
|
|
|
// Dash
|
|
if (sys->player->onGround)
|
|
sys->player->dashCount = 0;
|
|
if (input_IsPressed(input->keys[input_Key_Dash]) &&
|
|
(sys->player->onGround || sys->player->dashCount < airdashCount) &&
|
|
time_Since(sys->player->lastDash).microseconds > dashCooldown.microseconds) {
|
|
sys->player->lastDash = time_Now();
|
|
if (!sys->player->onGround)
|
|
sys->player->dashCount++;
|
|
}
|
|
// Am I dashing right now?
|
|
if (time_Since(sys->player->lastDash).microseconds < dashLength.microseconds) {
|
|
sys->player->super->position->velocity.x += sys->player->faceDirection * dashSpeed;
|
|
sys->player->super->position->velocity.y = 0;
|
|
} else { // Release the stored Y speed
|
|
sys->player->super->position->velocity.y += sys->player->storedSpeedY;
|
|
sys->player->storedSpeedY = 0;
|
|
}
|
|
|
|
|
|
// Check OnGround again
|
|
if (dabs(sys->player->super->position->velocity.y) > EPS)
|
|
sys->player->onGround = false;
|
|
}
|