A game engine for top-down 2D RPG games.
emmeline.girlkisser.top
rpg
game-engine
raylib
c99
1#include "keraforge/bini.h"
2#include <keraforge.h>
3
4
5static
6void _player_tick_move(struct kf_actor *self)
7{
8 struct kf_vec2(f32) v = {0, 0};
9
10 /* gamepad axis movement */
11 f32 gpx = kf_getgamepadaxis(kf_inputbind_move_left);
12 f32 gpy = kf_getgamepadaxis(kf_inputbind_move_up);
13 if (gpx > kf_deadzone || gpx < -kf_deadzone || gpy > kf_deadzone || gpy < -kf_deadzone)
14 {
15 v.y = gpy;
16 v.x = gpx;
17
18 f32 angle = Vector2LineAngle(Vector2Zero(), (Vector2){gpx, gpy}) * RAD2DEG;
19 angle /= 90;
20 switch ((int)roundf(angle))
21 {
22 case 0: self->pointing = kf_east; break;
23 case 1: self->pointing = kf_north; break;
24 case -2: /* fallthrough */
25 case 2: self->pointing = kf_west; break;
26 case -1: self->pointing = kf_south; break;
27 }
28
29 goto done;
30 }
31
32 /* non-axis movement */
33 bool w = kf_checkinputdown(kf_inputbind_move_up);
34 bool s = kf_checkinputdown(kf_inputbind_move_down);
35 bool a = kf_checkinputdown(kf_inputbind_move_left);
36 bool d = kf_checkinputdown(kf_inputbind_move_right);
37
38 if (a && d) { v.x = 0; }
39 else if (a) { v.x = -1; self->pointing = kf_west; }
40 else if (d) { v.x = 1; self->pointing = kf_east; }
41
42 if (w && s) { v.y = 0; }
43 else if (w) { v.y = -1; self->pointing = kf_north; }
44 else if (s) { v.y = 1; self->pointing = kf_south; }
45
46 v = kf_normalize_vec2(f32)(v);
47
48done:
49 if (v.x || v.y)
50 kf_actor_addforce(self, v);
51}
52
53void kf_player_tick(struct kf_actor *self)
54{
55 if (!kf_window.menu && self->controlled)
56 {
57 _player_tick_move(self);
58
59 if (kf_checkinputpress(kf_inputbind_run))
60 {
61 self->running = true;
62 self->speedmod = 1.5;
63 }
64 else if (kf_checkinputrelease(kf_inputbind_run))
65 {
66 self->running = false;
67 self->speedmod = 1;
68 }
69 }
70
71 kf_actor_move(kf_window.room, self, kf_dts);
72}
73
74void kf_player_draw(struct kf_actor *self)
75{
76 kf_actor_draw(self);
77
78 if (self->controlled)
79 {
80 kf_window.cam.target.x = self->pos.x + (self->size.x / 2);
81 kf_window.cam.target.y = self->pos.y + (self->size.y / 2);
82 }
83}
84
85void kf_player_serialize(struct kf_actor *self, struct bini_stream *bs)
86{
87 bini_wf(bs, self->pos.x);
88 bini_wf(bs, self->pos.y);
89 bini_wb(bs, self->controlled);
90}
91
92void kf_player_deserialize(struct kf_actor *self, struct bini_stream *bs)
93{
94 self->pos.x = bini_rf(bs);
95 self->pos.y = bini_rf(bs);
96 self->controlled = bini_rb(bs);
97}