creator.core.input source code

1 module creator.core.input;
2 import creator.core;
3 import inochi2d.core;
4 import inochi2d.math;
5 import bindbc.imgui;
6 
7 private {
8     vec2 mpos;
9     ImGuiIO* io;
10 }
11 
12 /**
13     Begins a UI input pass
14 */
15 void incInputBegin() {
16     io = igGetIO();
17 }
18 
19 /**
20     Sets the mouse within the viewport
21 */
22 void incInputSetViewportMouse(float x, float y) {
23     vec2 camPos = inGetCamera().position;
24     vec2 camScale = inGetCamera().scale;
25     vec2 camCenter = inGetCamera().getCenterOffset();
26 
27     mpos = (
28         mat4.translation(
29             camPos.x+camCenter.x, 
30             camPos.y+camCenter.y, 
31             0
32         ) * 
33         mat4.scaling(
34             camScale.x, 
35             camScale.y, 
36             1
37         ).inverse() *
38         mat4.translation(
39             x, 
40             y, 
41             0
42         ) *
43         vec4(0, 0, 0, 1)
44     ).xy;
45 }
46 
47 /**
48     Gets the position of the mouse in the viewport
49 */
50 vec2 incInputGetMousePosition() {
51     return mpos;
52 }
53 
54 /**
55     Gets whether a key is held down
56 */
57 bool incInputIsKeyDown(ImGuiKey key) {
58     return igIsKeyDown(igGetKeyIndex(key));
59 }
60 
61 /**
62     Gets whether a key is held down
63 */
64 bool incInputIsKeyUp(ImGuiKey key) {
65     return !incInputIsKeyDown(key);
66 }
67 
68 /**
69     Gets whether a key is held down
70 */
71 bool incInputIsKeyPressed(ImGuiKey key) {
72     return igIsKeyPressed(igGetKeyIndex(key));
73 }