creator.core.egg source code

1 /*
2     Copyright © 2022, Inochi2D Project
3     Distributed under the 2-Clause BSD License, see LICENSE file.
4     
5     Authors: Luna Nielsen
6 */
7 module creator.core.egg;
8 import creator.core;
9 import inochi2d;
10 import bindbc.sdl;
11 import bindbc.opengl;
12 import std.stdio;
13 import std.random;
14 
15 version(InBranding) {
16     private {
17         int logoClickCounter;
18         vec2 adaOffset;
19         vec2 adaVelocity;
20         enum ADA_SIZE = 396;
21         enum CLICK_THRESH = 25;
22 
23         enum JUMP_SPEED_X = 500;
24         enum JUMP_SPEED_Y = 700;
25         bool lhs;
26         Camera cam;
27 
28         Shader adaShader;
29     }
30 
31     void incAdaTickOne() {
32         logoClickCounter++;
33         if (logoClickCounter == CLICK_THRESH) {
34             lhs = !lhs;
35 
36             float uiScale = incGetUIScale();
37             int w, h;
38             SDL_GetWindowSize(incGetWindowPtr(), &w, &h);
39 
40             float adaHalf = (ADA_SIZE*uiScale)/2;
41             float hws = (w/2)/uiScale;
42 
43             // Alternate jumping from left and right
44             float spawnX = lhs ? uniform(-(hws+adaHalf), -adaHalf) : uniform(adaHalf, hws-adaHalf);
45             float dirX = (lhs ? uniform(-JUMP_SPEED_X, -100) : uniform(100, JUMP_SPEED_X))*uiScale;
46             adaVelocity = vec2(dirX, -JUMP_SPEED_Y*uiScale);
47             adaOffset = vec2(spawnX, 0);
48         }
49     }
50 
51     // UwU
52     void incAdaUpdate() {
53         if (logoClickCounter >= CLICK_THRESH) {
54             float uiScale = incGetUIScale();
55 
56             int w, h;
57             int ww, wh;
58             inGetViewport(ww, wh);
59             SDL_GetWindowSize(incGetWindowPtr(), &w, &h);
60 
61             glDisable(GL_DEPTH_TEST);
62             glDisable(GL_CULL_FACE);
63             glEnable(GL_BLEND);
64             glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
65 
66             float halfWidth = w/2;
67             float halfHeight = h/2;
68 
69             adaOffset -= adaVelocity*deltaTime();
70             adaVelocity.y += 500.0*deltaTime();
71 
72             inSetViewport(w, h);
73             inDrawTextureAtRect(
74                 incGetAda(), 
75                 rect(adaOffset.x, halfHeight-adaOffset.y, ADA_SIZE*uiScale, ADA_SIZE*uiScale),
76                 rect(0, 0, 1, 1),
77                 1,
78                 vec3(1, 1, 1),
79                 vec3(0, 0, 0),
80                 adaShader,
81                 cam
82             );
83 
84             inSetViewport(ww, wh);
85 
86             // Animation is over
87             if (adaOffset.y < -((ADA_SIZE+32)*uiScale)) {
88                 logoClickCounter = 0;
89             }
90         }
91     }
92 
93     void incInitAda() {
94         adaShader = new Shader(import("shaders/ada.vert"), import("shaders/ada.frag"));
95             
96         cam = new Camera();
97         cam.position = vec2(0, 0);
98         cam.scale = vec2(1, 1);
99         cam.rotation = 0;
100     }
101 }