1 /*
2 Copyright (C) 2009-2021 Parallel Realities
3 
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8 
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 
13 See the GNU General Public License for more details.
14 
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA.
18 */
19 
20 #include "../headers.h"
21 
22 #include "../entity.h"
23 #include "../graphics/animation.h"
24 #include "../system/error.h"
25 #include "../system/properties.h"
26 
27 extern Entity *self;
28 
29 static void entityWait(void);
30 static void init(void);
31 
addConveyorBelt(char * name,int x,int y)32 Entity *addConveyorBelt(char *name, int x, int y)
33 {
34 	Entity *e = getFreeEntity();
35 
36 	if (e == NULL)
37 	{
38 		showErrorAndExit("No free slots to add a Conveyor Belt");
39 	}
40 
41 	loadProperties(name, e);
42 
43 	e->x = x;
44 	e->y = y;
45 
46 	e->action = &init;
47 	e->draw = &drawLoopingAnimationToMap;
48 	e->touch = &pushEntity;
49 
50 	setEntityAnimation(e, "STAND");
51 
52 	return e;
53 }
54 
entityWait()55 static void entityWait()
56 {
57 	if (self->active != self->dirY)
58 	{
59 		if (self->health == 0)
60 		{
61 			if (self->active == TRUE)
62 			{
63 				self->dirX = self->face == LEFT ? -fabs(self->speed) : self->speed;
64 
65 				self->frameSpeed = 1;
66 			}
67 
68 			else
69 			{
70 				self->dirX = 0;
71 
72 				self->frameSpeed = 0;
73 			}
74 		}
75 
76 		else
77 		{
78 			if (self->active == TRUE)
79 			{
80 				self->dirX = self->face == LEFT ? -fabs(self->speed) : self->speed;
81 
82 				self->frameSpeed = abs(self->frameSpeed);
83 			}
84 
85 			else
86 			{
87 				self->dirX = self->face == RIGHT ? -fabs(self->speed) : self->speed;
88 
89 				self->frameSpeed = -abs(self->frameSpeed);
90 			}
91 		}
92 
93 		self->dirY = self->active;
94 	}
95 }
96 
init()97 static void init()
98 {
99 	if (self->health == 0)
100 	{
101 		if (self->active == TRUE)
102 		{
103 			self->dirX = self->face == LEFT ? -fabs(self->speed) : self->speed;
104 
105 			self->frameSpeed = 1;
106 		}
107 
108 		else
109 		{
110 			self->dirX = 0;
111 
112 			self->frameSpeed = 0;
113 		}
114 	}
115 
116 	else
117 	{
118 		if (self->active == TRUE)
119 		{
120 			self->dirX = self->face == LEFT ? -fabs(self->speed) : self->speed;
121 
122 			self->frameSpeed = abs(self->frameSpeed);
123 		}
124 
125 		else
126 		{
127 			self->dirX = self->face == RIGHT ? -fabs(self->speed) : self->speed;
128 
129 			self->frameSpeed = -abs(self->frameSpeed);
130 		}
131 	}
132 
133 	self->dirY = self->active;
134 
135 	self->action = &entityWait;
136 }
137