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NAME(player);
static const i32 grace = 10;
static const i32 jumpBuffer = 6;
static const f32 maxSpeed = 1.f;
static const f32 groundAcceleration = .4f;
static const f32 groundFriction = (groundAcceleration / maxSpeed);
static const f32 airAcceleration = .2f;
static const f32 airFriction = (airAcceleration / maxSpeed);
static const f32 airResistance = .01f;
static const f32 jumpSpeed = -2.f;
static const f32 gravity = .05f;
enum AirState {
AirState_NEUTRAL,
AirState_RISING,
AirState_BREAKING
};
INIT {
DIM.x = DIM.y = 6;
this->reverseGravity = false;
this->grace = 0;
this->djump = false;
this->air = AirState_NEUTRAL;
}
INIT_POST {
while (!collide_solid(v2(0, 1)))
POS.y += 1;
}
UPDATE {
if (input_pressed("reset")) {
g->room_restart = 1;
return;
}
if (this->dead) {
this->tick += 1;
return;
}
const bool reverse_gravity = this->reverseGravity;
if (reverse_gravity) VEL.y *= -1;
const bool on_ground = collide_solid(v2(0, reverse_gravity ? -1 : 1));
if (input_axis("move x"))
this->flip_x = (input_axis("move x") < 0);
if (input_pressed("jump"))
this->jump_buffer = jumpBuffer;
else if (this->jump_buffer > 0)
this->jump_buffer -= 1;
if (on_ground) {
this->grace = grace;
this->djump = true;
} else if (this->grace > 0)
this->grace -= 1;
const bool can_jump = this->grace || this->djump;
if (on_ground) {
VEL.x *= 1 - groundFriction;
VEL.x += input_axis("move x") * groundAcceleration;
} else {
VEL.x *= 1 - airFriction;
VEL.x += input_axis("move x") * airAcceleration;
}
if (this->air == AirState_RISING && !input_down("jump"))
this->air = AirState_BREAKING;
if (this->air == AirState_BREAKING && VEL.y > gravity * grace / 2)
this->air = AirState_NEUTRAL;
VEL.y *= 1.f - airResistance;
if (can_jump && this->jump_buffer) {
this->jump_buffer = 0;
if (this->grace) {
g->ev.jump = true;
this->grace = 0;
} else {
g->ev.djump = true;
this->djump = false;
}
VEL.y = jumpSpeed;
REM.y = 0;
this->air = AirState_RISING;
} else if (!on_ground) {
if (this->air == AirState_BREAKING)
VEL.y += gravity * 6;
else
VEL.y += gravity;
}
if (reverse_gravity) VEL.y *= -1;
vec2 vel = move(VEL);
if (collide_spike(v2_zero())) {
g->ev.death = true;
this->dead = true;
}
VEL = vel;
}
DRAW {
TZR_DrawSetColor(1, 1, 1);
if (this->dead && this->tick / 4 % 2 == 0)
return;
TZR_DrawImage(TZR_RES("res/player.bmp"), v2_unpack(POS), .center=true);
}
DRAW_END {
if (!this->dead || this->tick / 32 % 2 == 1)
return;
font_center(cfg.display_width/2, cfg.display_height/2 - cfg.tile_height/2,
"game over");
font_center(cfg.display_width/2, cfg.display_height/2 + cfg.tile_height/2,
"press r");
}
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