C
Claudiu
Guest
Hi to all! I want to know how to start to implement finite state machine in my game. Until now i done some codes on work very well but i know will be hard if i continue like that and will be better to organize in scripts for each state. For now i have : idle, walk, run, jump, fall and landing animation. i will like if someone can help how to make script from my events. Thanks and those are my codes.
Code:
///Initialize Variables
grav = 3.5;
hsp = 0;
vsp = 0;
spd = 0;
facing = 0;
doubletap = 0;
walkspeed = 8;
runspeed = 24;
jumpspeed = 48;
land_timer = 0;
Code:
///Control the Player
//Get the player input
var key_right = keyboard_check(vk_right) || gamepad_button_check(0, gp_padr) > 0;
var key_right_pressed = keyboard_check_pressed(vk_right) || gamepad_button_check_pressed(0, gp_padr) > 0;
var key_left = keyboard_check(vk_left) || gamepad_button_check(0, gp_padl) > 0;
var key_left_pressed = keyboard_check_pressed(vk_left) || gamepad_button_check_pressed(0, gp_padl) > 0;
var key_jump = keyboard_check_pressed(vk_space) || gamepad_button_check_pressed(0, gp_face1);
var key_jump_held = keyboard_check(vk_space) || gamepad_button_check(0, gp_face1);
var key_block = keyboard_check(ord("Q")) || gamepad_button_check(0, gp_shoulderlb) > 0;
var key_block_init = keyboard_check_pressed(ord("Q")) || gamepad_button_check_pressed(0, gp_shoulderlb) > 0;
var key_block_end = keyboard_check_released(ord("Q")) || gamepad_button_check_released(0, gp_shoulderlb) >0;
//Horizontal Movement
hsp = 0;
doubletap--;
if key_right && !key_left {
if key_right_pressed {
if doubletap > 0 and place_meeting(x,y+1,par_wall)
spd = runspeed;
else
spd = walkspeed;
doubletap = 10;
}
if place_free(x + walkspeed, y) {
facing = 0;
hsp = spd;
}
}
if key_left && !key_right {
if key_left_pressed {
if doubletap > 0 and place_meeting(x,y+1,par_wall)
spd = runspeed;
else
spd = walkspeed;
doubletap = 10;
}
if place_free(x - walkspeed, y) {
facing = 1;
hsp = -spd;
}
}
if key_left && key_right
spd = walkspeed;
//Vertical Movement
if vsp < 48
vsp += grav;
if place_meeting(x, y + 1, par_wall)
vsp = key_jump * -jumpspeed
if !key_jump_held
vsp = max(vsp, 0);
if land_timer > 0 {
land_timer--;
hsp = 0;
}
//Horizontal and Slopes Collision
if place_meeting(x + hsp, y, par_wall) {
yplus = 0;
while (place_meeting(x+hsp,y-yplus,par_wall) && yplus <= abs(1*hsp)) yplus +=1;
if place_meeting(x+hsp,y-yplus,par_wall) {
while !place_meeting(x + sign(hsp), y, par_wall)
x += sign(hsp);
hsp = 0;
}
else{
y -= yplus;
}
}
x += hsp;
if !place_meeting(x,y,par_wall) && vsp >= 0 && place_meeting(x,y+2+abs(hsp),par_wall) {
while(!place_meeting(x,y+1,par_wall)) {
y += 1;
}
}
//Vertical and Slopes Collision
if place_meeting(x, y + vsp, par_wall) {
while !place_meeting(x, y + sign(vsp), par_wall)
y += sign(vsp);
vsp = 0;
}
y += vsp;
Code:
///Animation
//Right Animation
if facing == 0 { // He facing to right
if place_meeting(x, y + 1, par_wall) {
switch sprite_index {
case spr_alucard_fall_r:
sprite_index = spr_alucard_fall_end_r; // He landing to right
exit;
case spr_alucard_fall_end_r:
land_timer = 2;
if image_index < image_number - 1
exit;
}
if hsp == 0 { // He relax to right
if sprite_index != spr_alucard_relax_r
image_index = 0;
sprite_index = spr_alucard_relax_r;
} else if hsp == 8 { // He walk to right
if sprite_index != spr_alucard_walk_r
image_index = 0;
sprite_index = spr_alucard_walk_r;
} else {
if hsp > 8 && sprite_index != spr_alucard_run_r // He run to right
image_index = 0;
sprite_index = spr_alucard_run_r;
}
image_speed = 1;
}
if !place_meeting(x, y + 1, par_wall) {
if vsp < 0 { // He jump to the right
if sprite_index != spr_alucard_jump_r
image_index = 0;
sprite_index = spr_alucard_jump_r;
image_speed = 1;
}
if vsp > 0 { // He fall to the right
if sprite_index != spr_alucard_fall_r
image_index = 0;
sprite_index = spr_alucard_fall_r;
image_speed = 1;
}
}
}
//Left Animation
if facing == 1 { // He facing to left
if place_meeting(x, y + 1, par_wall) {
switch sprite_index {
case spr_alucard_fall_l:
sprite_index = spr_alucard_fall_end_l; //He landing to left
exit;
case spr_alucard_fall_end_l:
land_timer = 2;
if image_index < image_number - 1
exit;
}
if hsp == 0 { // He relax to left
if sprite_index != spr_alucard_relax_l
image_index = 0;
sprite_index = spr_alucard_relax_l;
} else if hsp == -8 { // He walk to left
if sprite_index != spr_alucard_walk_l
image_index = 0;
sprite_index = spr_alucard_walk_l;
} else {
if hsp > -8 && sprite_index != spr_alucard_run_l // He run to left
image_index = 0;
sprite_index = spr_alucard_run_l;
}
image_speed = 1;
}
if !place_meeting(x, y + 1, par_wall) {
if vsp < 0 { // He jump to the left
if sprite_index != spr_alucard_jump_l
image_index = 0;
sprite_index = spr_alucard_jump_l;
image_speed = 1;
}
if vsp > 0 { // He fall to the left
if sprite_index != spr_alucard_fall_l
image_index = 0;
sprite_index = spr_alucard_fall_l;
image_speed = 1;
}
}
}
