DaVid95
Hello.
I decided to learn some programming in Allegro so I tried to write some elements from a tutorial. And now I have odd problem with my application, here is the code:
1#pragma once
2#include <stdio.h>
3#include "allegro5/allegro_primitives.h"
4#include "allegro5/allegro_font.h"
5#include "allegro5/allegro_ttf.h"
6
7
8int main(int argc, char **argv)
9{
10 ALLEGRO_DISPLAY *display = NULL;
11 ALLEGRO_EVENT_QUEUE *event_queue = NULL;
12 ALLEGRO_BITMAP *bitmap = NULL;
13 ALLEGRO_FONT *font = NULL;
14 ALLEGRO_EVENT event;
15
16 if (!al_init()) {
17 fprintf(stderr, "failed to initialize allegro!\n");
18 return -1;
19 }
20 if (!al_install_keyboard()) {
21 fprintf(stderr, "failed to initialize the keyboard!\n");
22 return -1;
23 }
24 al_init_font_addon();
25 al_init_ttf_addon();
26 if (!al_install_mouse()) {
27 fprintf(stderr, "failed to initialize the mouse!\n");
28 return -1;
29 }
30 display = al_create_display(800, 600);
31 if (!display) {
32 fprintf(stderr, "failed to create display!\n");
33 return -1;
34 }
35 event_queue = al_create_event_queue();
36 if (!event_queue) {
37 fprintf(stderr, "failed to create event_queue!\n");
38 return -1;
39 }
40 font = al_load_ttf_font("Fonts/R-2014.ttf", 12, 0);
41 if (!font)
42 {
43 fprintf(stderr, "Could not load 'R-2014.ttf'.\n");
44 return -1;
45 }
46
47 al_register_event_source(event_queue, al_get_display_event_source(display));
48 al_register_event_source(event_queue, al_get_mouse_event_source());
49 al_register_event_source(event_queue, al_get_keyboard_event_source());
50
51 al_set_window_title(display, "Title!");
52
53 al_init_primitives_addon();
54 al_clear_to_color(al_map_rgb(255, 255, 255));
55 bitmap = al_create_bitmap(100, 100);
56 al_set_target_bitmap(bitmap);
57 al_clear_to_color(al_map_rgb(0, 0, 255));
58 al_set_target_bitmap(al_get_backbuffer(display));
59
60 al_flip_display();
61
62 int x = 0, y = 0;
63 int xx = 0, yy = 0;
64 unsigned long int frames = 0, cframes = 0, time1 = al_get_time(), time2 = 0;
65 //al_hide_mouse_cursor(display);
66 bool get_event;
67 for (;;)
68 {
69 get_event = al_get_next_event(event_queue, &event);
70 if (get_event)
71 {
72 if (event.type == ALLEGRO_EVENT_DISPLAY_CLOSE)
73 {
74 break;
75 }
76 else if (event.type == ALLEGRO_EVENT_MOUSE_AXES || ALLEGRO_EVENT_MOUSE_ENTER_DISPLAY)
77 {
78 xx = event.mouse.x;
79 yy = event.mouse.y;
80 }
81 else if (event.type == ALLEGRO_EVENT_KEY_DOWN)
82 {
83 switch (event.keyboard.keycode)
84 {
85 case ALLEGRO_KEY_UP: --y; break;
86 case ALLEGRO_KEY_DOWN: ++y; break;
87 case ALLEGRO_KEY_LEFT: --x; break;
88 case ALLEGRO_KEY_RIGHT: ++x; break;
89 }
90 if (x > 800) x = -100;
91 if (x < -100) x = 800;
92 if (y > 600) y = -100;
93 if (y < -100) y = 600;
94 }
95 }
96 ++frames;
97
98 time2 = al_get_time();
99 if (time2 != time1)
100 {
101 time1 = time2;
102 printf("%d\n", frames);
103 cframes = frames;
104 frames = 0;
105 }
106
107 if (al_is_event_queue_empty(event_queue))
108 {
109 al_clear_to_color(al_map_rgb(0, 0, 0));
110 al_set_target_bitmap(bitmap);
111 al_clear_to_color(al_map_rgb(255, 0, 0));
112 al_set_target_bitmap(al_get_backbuffer(display));
113 al_draw_bitmap(bitmap, x, y, 0);
114
115 al_draw_filled_ellipse(xx, yy, 5, 5, al_map_rgba(0, 255, 255, 255));
116
117 al_draw_textf(font, al_map_rgb(255, 255, 255), 0, 0, 0, "%d", cframes);
118 al_flip_display();
119 }
120 }
121
122 al_destroy_display(display);
123 al_destroy_event_queue(event_queue);
124 al_destroy_bitmap(bitmap);
125 return 0;
126}
I have problem with events, when I press arrows, a square doesn't move and a circle under mouse cursor 'teleports' to upper left corner, and I absolutely don't know why. Here is a video of the problem:
When I swap a part of code...:
1 //...
2 else if (event.type == ALLEGRO_EVENT_KEY_DOWN)
3 {
4 switch (event.keyboard.keycode)
5 {
6 case ALLEGRO_KEY_UP: --y; break;
7 case ALLEGRO_KEY_DOWN: ++y; break;
8 case ALLEGRO_KEY_LEFT: --x; break;
9 case ALLEGRO_KEY_RIGHT: ++x; break;
10 }
11 if (x > 800) x = -100;
12 if (x < -100) x = 800;
13 if (y > 600) y = -100;
14 if (y < -100) y = 600;
15 }
16
17 else if (event.type == ALLEGRO_EVENT_MOUSE_AXES || ALLEGRO_EVENT_MOUSE_ENTER_DISPLAY)
18 {
19 xx = event.mouse.x;
20 yy = event.mouse.y;
21 }
22 //...
... the square moves, but the circle still teleports:
What am I doing wrong 
Please help.
I add that I don't want to limit fps, so the program should gets events in every frame.
And sorry if there is any language mistakes, but my english is very bad 
SiegeLord
This line contains the error:
else if (event.type == ALLEGRO_EVENT_MOUSE_AXES || ALLEGRO_EVENT_MOUSE_ENTER_DISPLAY)
You want it to be:
else if (event.type == ALLEGRO_EVENT_MOUSE_AXES || event.type == ALLEGRO_EVENT_MOUSE_ENTER_DISPLAY)
Make sure you understand the difference between those two 
.
DaVid95
Yes, of course 
I didn't notice this, thanks for the help.