example.gameentity source code

1 module example.gameentity;
2 
3 version(GAMEEXAMPLE){
4 
5 import nudsfml.graphics;
6 
7 import std.stdio;
8 
9 import gamemap;
10 
11 class Entity {
12     Vector2f position;
13     Vector2i mapLocation;
14     int id;
15     bool destroy=false;
16 
17     this(){} 
18     void update(float dt){}
19     void draw(RenderTarget target){}
20 }
21 
22 
23 class SnakeEntity : Entity {
24     int partsID;
25     int parentID;
26     int childID;
27 
28     RectangleShape shape;
29 
30     Texture texture;
31 
32     this (Texture t){
33         texture=t;
34         shape = new RectangleShape();
35         shape.size(Vector2f(32,48));
36         shape.fillColor(Color.White);
37         shape.setTexture(texture);
38         shape.textureRect = IntRect(6*32,2*48,32,48);
39     }
40 
41     override void update(float dt){
42         if(destroy){
43             return;
44         }
45     }
46 
47     override void draw(RenderTarget target){
48         position = Vector2f(mapLocation.x * 32, mapLocation.y * 32);
49         shape.position = position;
50         target.draw(shape);   
51     }
52 }
53 
54 
55 class AppleEntity : Entity {
56     Vector2f offset = Vector2f(0, -8);
57 
58     float floatTime = 0;
59     float floatTimeMultiplyer = 1.0;
60 
61     Texture texture;
62     RectangleShape shape;
63     RectangleShape shadow;
64 
65     this(Texture t) {
66         texture = t;
67         shape = new RectangleShape();
68         shape.setTexture(t);
69         //TODO!!! - load tile texture position and size from file 
70         shape.size(Vector2f(32, 48));
71         shape.textureRect = IntRect(32 * 4, 48*2, 32, 48);
72         shape.fillColor = Color.White;
73 
74         shadow = new RectangleShape();
75         shadow.setTexture(t);
76         //TODO!!! - load tile texture position and size from file 
77         shadow.size(Vector2f(32, 48));
78         shadow.textureRect = IntRect(32 * 5, 48*2, 32, 48);
79         shadow.fillColor = Color.White;
80 
81         super();
82     }
83 
84     override void update(float deltaTime){
85         
86         floatTime += deltaTime * floatTimeMultiplyer;
87         //writeln("deltaTime: ", deltaTime ," floatTime: ", floatTime, " multiplier: ", floatTimeMultiplyer);
88         if(floatTime > .75 ){
89             floatTime = .75;
90             floatTimeMultiplyer = -floatTimeMultiplyer;
91         }
92         if(floatTime < 0 ){
93             floatTime = 0.0;
94             floatTimeMultiplyer = -floatTimeMultiplyer;
95         }
96 
97         super.update(deltaTime);
98     }
99 
100     override void draw(RenderTarget target){
101         shadow.position = position;
102         target.draw(shadow);
103         
104         shape.position = position + offset * (floatTime/0.75);
105         target.draw(shape);
106 
107         super.draw(target);
108     }
109 }
110 }