Ross Martin
Hello all,
I am currently having problems with the following code. I am not able to have the mouseCursor sprite follow the mouse. It is just stuck at the initial 20, 20 position. Any help would be greatly appreciated
Ross
1#include<iostream>
2#include<allegro5\allegro5.h>
3#include<allegro5\allegro_native_dialog.h>
4#include<allegro5\allegro_image.h>
5
6#define Height 640
7#define Width 640
8
9void render();
10void cursor();
11bool collision();
12void loadImages();
13void spawnControll();
14
15
16enum direction{down, left, right, up};
17enum color {red, green, blue};
18ALLEGRO_DISPLAY *display;
19
20class bubbleEnemy
21{
22 public:
23 int x , y, moveSpeed, color;
24 void setUpBubble();
25
26};
27
28void setUpBubble()
29{
30
31}
32
33class projectile
34{
35public:
36 projectile();
37 ~projectile();
38 int movespeed, color, x, y, targetX, targetY;
39 ALLEGRO_BITMAP *projectileSprite;
40
41};
42projectile::projectile()
43{
44
45
46}
47projectile::~projectile()
48{
49
50}
51
52class player
53{
54 public:
55 player();
56 ~player();
57 void loadImages();
58 void playerDraw();
59 void animate(bool active);
60 int playerMoveSpeed;
61 int sourceX, sourceY;
62 int dir;
63 ALLEGRO_BITMAP *playerSprite;
64 float playerX, playerY;
65
66};
67
68player::player()
69{
70 playerMoveSpeed = 4;
71 int dir = down;
72 playerX = 300;
73 playerY = 300;
74
75}
76player::~player()
77{
78 al_destroy_bitmap(playerSprite);
79}
80
81void player::playerDraw(){
82 al_draw_bitmap_region(playerSprite, sourceX, sourceY * al_get_bitmap_height(playerSprite) / 4, 32, 32, playerX, playerY, NULL);
83}
84
85void player::animate(bool active)
86{
87 if(active)
88 sourceX += al_get_bitmap_width(playerSprite) / 3;
89 else
90 sourceX = 32;
91
92 if(sourceX >= al_get_bitmap_width(playerSprite))
93 sourceX = 0;
94
95 sourceY = dir;
96
97}
98
99class mousePointer
100{
101public:
102 int mousePointerX, mousePointerY;
103 mousePointer();
104 ~mousePointer();
105 ALLEGRO_BITMAP *mousePointerSprite;
106 void mouseDraw();
107};
108
109mousePointer::mousePointer()
110{
111 mousePointerX = 20;
112 mousePointerY = 20;
113}
114
115mousePointer::~mousePointer()
116{
117 al_destroy_bitmap(mousePointerSprite);
118}
119
120void mousePointer::mouseDraw()
121{
122 al_draw_bitmap(mousePointerSprite, mousePointerX, mousePointerY, NULL );
123}
124
125bool done, paused, active;
126bubbleEnemy enemyList[100];
127int enemyactive[100];
128projectile projectilelist[4];
129mousePointer mouseCursor;
130player player1;
131
132int main()
133{
134 al_init();
135 al_install_keyboard();
136 al_init_image_addon();
137 al_install_mouse();
138 done = false;
139 int drawSpeed = 10, FPS = 60;
140
141 display = al_create_display(Width, Height);
142
143 if(!display)
144 al_show_native_message_box(NULL, "Error" , NULL, "Could not create Allegro Display" , NULL, NULL);
145
146 al_set_window_position(display, 200, 200);
147 done = false;
148
149 ALLEGRO_KEYBOARD_STATE keyState;
150 ALLEGRO_EVENT_QUEUE *event_queue = al_create_event_queue();
151
152 ALLEGRO_TIMER *drawTimer = al_create_timer(1.0/drawSpeed);
153 ALLEGRO_TIMER *fpsTimer = al_create_timer(1.0/FPS);
154
155 al_register_event_source(event_queue, al_get_timer_event_source(drawTimer));
156 al_register_event_source(event_queue, al_get_timer_event_source(fpsTimer));
157 al_register_event_source(event_queue, al_get_display_event_source(display));
158 al_register_event_source(event_queue, al_get_keyboard_event_source());
159 al_register_event_source(event_queue, al_get_mouse_event_source());
160
161 loadImages();
162 al_hide_mouse_cursor(display);
163
164 al_start_timer(fpsTimer);
165 al_start_timer(drawTimer);
166
167 while(!done)
168 {
169 ALLEGRO_EVENT events;
170 al_wait_for_event(event_queue, &events);
171 al_get_keyboard_state(&keyState);
172
173 if(events.type == ALLEGRO_EVENT_DISPLAY_CLOSE)
174 {
175 done = true;
176 break;
177 }
178 else if(events.type == ALLEGRO_EVENT_TIMER)
179 {
180 if(events.timer.source == fpsTimer)
181 {
182 active = true;
183 if(events.type == ALLEGRO_EVENT_MOUSE_AXES)
184 {
185 mouseCursor.mousePointerY = events.mouse.y;
186 mouseCursor.mousePointerX = events.mouse.x;
187 }
188 else if(al_key_down(&keyState, ALLEGRO_KEY_S))
189 {
190 player1.playerY += player1.playerMoveSpeed;
191 player1.dir = down;
192 }
193 else if(al_key_down(&keyState, ALLEGRO_KEY_W))
194 {
195 player1.playerY -= player1.playerMoveSpeed;
196 player1.dir = up;
197 }
198 else if(al_key_down(&keyState, ALLEGRO_KEY_A))
199 {
200 player1.playerX -= player1.playerMoveSpeed;
201 player1.dir = left;
202 }
203 else if(al_key_down(&keyState, ALLEGRO_KEY_D))
204 {
205 player1.playerX += player1.playerMoveSpeed;
206 player1.dir = right;
207 }
208
209 else
210 active = false;
211
212
213
214 }
215
216 else if(events.timer.source == drawTimer)
217 {
218 player1.animate(active);
219 }
220
221
222 }
223 render();
224
225 }
226 player1.~player();
227 mouseCursor.~mousePointer();
228 al_destroy_timer(fpsTimer);
229 al_destroy_timer(drawTimer);
230 al_destroy_event_queue(event_queue);
231 al_destroy_display(display);
232}
233
234void spawnControll()
235{
236
237}
238
239bool collision(ALLEGRO_BITMAP *player)
240{
241
242}
243
244void render()
245{
246
247 player1.playerDraw();
248 mouseCursor.mouseDraw();
249 al_flip_display();
250 al_clear_to_color(al_map_rgb(0,0,0));
251}
252
253void loadImages(){
254
255 player1.playerSprite = al_load_bitmap("playerImage.png");
256 mouseCursor.mousePointerSprite = al_load_bitmap("pointer.png");
257 al_convert_mask_to_alpha(mouseCursor.mousePointerSprite, al_map_rgb(255,255,255));
258}
pkrcel
do you ever get the MOUSE_AXES event at all?
I'm actually unsure that nesting it into the timer event may mask it at all and you get a MOUSE_WARPED event (?)
l j
else if(events.type == ALLEGRO_EVENT_TIMER) { if(events.timer.source == fpsTimer) { active = true; if(events.type == ALLEGRO_EVENT_MOUSE_AXES) { mouseCursor.mousePointerY = events.mouse.y; mouseCursor.mousePointerX = events.mouse.x; }
events.type will not just magically change.
Check for ALLEGRO_EVENT_MOUSE_AXES events outside of your timer event.
Ross Martin
Thank you. That was the problem i don't quite understand why, but it fixed it. Thanks 
count
Ross Martin said:
i don't quite understand why
// Let 's say events.type is ALLEGRO_EVENT_TIMER else if(events.type == ALLEGRO_EVENT_TIMER) // then THIS is true { [...snip...] if(events.type == ALLEGRO_EVENT_MOUSE_AXES) // this will never be true because events.type is STILL ALLEGRO_EVENT_TIMER
Does that make things clearer? Would be good if you understand why this solution fixed your problem. Give a man a fish... etc 