hip.event.handlers.inputmap source code

1 module hip.event.handlers.inputmap;
2 import hip.util.reflection;
3 import hip.data.jsonc;
4 import hip.filesystem.hipfs;
5 import hip.error.handler;
6 import hip.api.input;
7 import hip.event.api;
8 
9 class HipInputMap : IHipInputMap
10 {
11     alias Context = IHipInputMap.Context;
12     Context[string] inputMapping;
13     ubyte id;
14     //registerInputAction("menu", MOUSE_BTN_R, TOUCH_0 | TOUCH_1, KEY_WINDOWS)
15     private pragma(inline) Context* getAction(string actionName)
16     {
17         Context* ctx = actionName in inputMapping;
18         if(ctx == null)
19         {
20             ErrorHandler.showErrorMessage("HipInputMap action getter error",
21             '"'~actionName~"' does not exists on input mapping");
22         }
23         return ctx;
24     }
25     float isActionPressed(string actionName)
26     {
27         Context* c = getAction(actionName);
28         if(!c) return 0.0f;
29         float greatest = 0;
30         foreach(g; c.btns) if(isGamepadButtonPressed(g, id))
31             greatest = 1.0f;
32         foreach(k; c.keys) if(isKeyPressed(k, id))
33             greatest = 1.0f;
34         return greatest;
35     }
36     float isActionJustPressed(string actionName)
37     {
38         Context* c = getAction(actionName);
39         if(!c) return 0.0f;
40         float greatest = 0;
41         foreach(g; c.btns) if(isGamepadButtonJustPressed(g, id))
42             greatest = 1.0f;
43         foreach(k; c.keys) if(isKeyJustPressed(k, id))
44             greatest = 1.0f;
45         return greatest;
46     }
47     float isActionJustReleased(string actionName)
48     {
49         Context* c = getAction(actionName);
50         if(!c) return 0.0f;
51         float greatest = 0;
52         foreach(g; c.btns) if(isGamepadButtonJustReleased(g, id))
53             greatest = 1.0f;
54         foreach(k; c.keys) if(isKeyJustReleased(k, id))
55             greatest = 1.0f;
56         return greatest;
57     }
58 
59     void registerInputAction(string actionName, Context ctx)
60     {
61         mixin(ErrorHandler.assertReturn!q{actionName != ""}("Register Input Action should contain a name"));
62         inputMapping[actionName] = ctx;
63 
64     }
65 
66     @ExportD("Mem") static IHipInputMap parseInputMap(ubyte[] file, string fileName, ubyte id = 0)
67     {
68         HipInputMap ret = new HipInputMap();
69         JSONValue inputJson = parseJSON(cast(string)file);
70 
71         JSONValue* temp = ("actions" in inputJson.object);
72         ErrorHandler.assertLazyErrorMessage(temp != null, "HipInputMap wrong formatting", 
73         "\"actions\" not found in "~fileName);
74 
75         foreach(k, v; temp.object)
76         {
77             string actionName = k;
78             JSONValue* kb = ("keyboard" in v.object);
79             JSONValue* gp = ("gamepad" in v.object);
80 
81             Context ctx;
82             if(kb != null)
83             {
84                 foreach(key; kb.array) //Keyboard
85                     ctx.keys~= key.str[0];
86             }
87             if(gp != null)
88             {
89                 foreach(btn; gp.array) //Gamepad
90                     ctx.btns ~=  gamepadButtonFromString(btn.str);
91             }
92             ret.inputMapping[actionName] = ctx;
93             ctx.name = actionName;
94         }
95         return ret;
96     }
97 }
98 
99 
100 mixin ExportDFunctions!(hip.event.handlers.inputmap);