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#include <allegro5/allegro.h>
#include <allegro5/allegro_font.h>
#include <allegro5/allegro_primitives.h>
#include <stdio.h>
#include "common.c"
int width = 640;
int height = 480;
int main(int argc, char **argv)
{
ALLEGRO_FONT *font;
ALLEGRO_DISPLAY *display;
ALLEGRO_EVENT_QUEUE *event_queue;
ALLEGRO_EVENT event;
bool right_button_down = false;
bool redraw = true;
int fake_x = 0, fake_y = 0;
ALLEGRO_COLOR white;
(void)argc;
(void)argv;
if (!al_init()) {
abort_example("Could not init Allegro.\n");
}
open_log();
al_init_primitives_addon();
al_init_font_addon();
al_install_mouse();
al_install_keyboard();
al_set_new_display_flags(ALLEGRO_WINDOWED);
display = al_create_display(width, height);
if (!display) {
abort_example("Could not create display.\n");
}
memset(&event, 0, sizeof(event));
event_queue = al_create_event_queue();
al_register_event_source(event_queue, al_get_display_event_source(display));
al_register_event_source(event_queue, al_get_mouse_event_source());
al_register_event_source(event_queue, al_get_keyboard_event_source());
font = al_create_builtin_font();
white = al_map_rgb_f(1, 1, 1);
while (1) {
if (redraw && al_is_event_queue_empty(event_queue)) {
int th = al_get_font_line_height(font);
al_clear_to_color(al_map_rgb_f(0, 0, 0));
if (right_button_down) {
al_draw_line(width / 2, height / 2, fake_x, fake_y,
al_map_rgb_f(1, 0, 0), 1);
al_draw_line(fake_x - 5, fake_y, fake_x + 5, fake_y,
al_map_rgb_f(1, 1, 1), 2);
al_draw_line(fake_x, fake_y - 5, fake_x, fake_y + 5,
al_map_rgb_f(1, 1, 1), 2);
}
al_draw_textf(font, white, 0, 0, 0, "x: %i y: %i dx: %i dy %i",
event.mouse.x, event.mouse.y,
event.mouse.dx, event.mouse.dy);
al_draw_textf(font, white, width / 2, height / 2 - th, ALLEGRO_ALIGN_CENTRE,
"Left-Click to warp pointer to the middle once.");
al_draw_textf(font, white, width / 2, height / 2, ALLEGRO_ALIGN_CENTRE,
"Hold right mouse button to constantly move pointer to the middle.");
al_flip_display();
redraw = false;
}
al_wait_for_event(event_queue, &event);
if (event.type == ALLEGRO_EVENT_DISPLAY_CLOSE) {
break;
}
if (event.type == ALLEGRO_EVENT_KEY_DOWN) {
if (event.keyboard.keycode == ALLEGRO_KEY_ESCAPE)
break;
}
if (event.type == ALLEGRO_EVENT_MOUSE_WARPED) {
log_printf("Warp\n");
}
if (event.type == ALLEGRO_EVENT_MOUSE_AXES) {
if (right_button_down) {
al_set_mouse_xy(display, width / 2, height / 2);
fake_x += event.mouse.dx;
fake_y += event.mouse.dy;
}
redraw = true;
}
if (event.type == ALLEGRO_EVENT_MOUSE_BUTTON_DOWN) {
if (event.mouse.button == 1)
al_set_mouse_xy(display, width / 2, height / 2);
if (event.mouse.button == 2) {
right_button_down = true;
fake_x = width / 2;
fake_y = height / 2;
}
}
if (event.type == ALLEGRO_EVENT_MOUSE_BUTTON_UP) {
if (event.mouse.button == 2) {
right_button_down = false;
}
}
}
al_destroy_event_queue(event_queue);
al_destroy_display(display);
close_log(false);
return 0;
}
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