1/*******************************************************************************************
2*
3* raylib [shapes] example - raylib logo animation
4*
5* This example has been created using raylib 2.3 (www.raylib.com)
6* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
7*
8* Copyright (c) 2014 Ramon Santamaria (@raysan5)
9*
10********************************************************************************************/
11
12#include "raylib.h"
13
14int main(void)
15{
16 // Initialization
17 //--------------------------------------------------------------------------------------
18 const int screenWidth = 800;
19 const int screenHeight = 450;
20
21 InitWindow(screenWidth, screenHeight, "raylib [shapes] example - raylib logo animation");
22
23 int logoPositionX = screenWidth/2 - 128;
24 int logoPositionY = screenHeight/2 - 128;
25
26 int framesCounter = 0;
27 int lettersCount = 0;
28
29 int topSideRecWidth = 16;
30 int leftSideRecHeight = 16;
31
32 int bottomSideRecWidth = 16;
33 int rightSideRecHeight = 16;
34
35 int state = 0; // Tracking animation states (State Machine)
36 float alpha = 1.0f; // Useful for fading
37
38 SetTargetFPS(60); // Set our game to run at 60 frames-per-second
39 //--------------------------------------------------------------------------------------
40
41 // Main game loop
42 while (!WindowShouldClose()) // Detect window close button or ESC key
43 {
44 // Update
45 //----------------------------------------------------------------------------------
46 if (state == 0) // State 0: Small box blinking
47 {
48 framesCounter++;
49
50 if (framesCounter == 120)
51 {
52 state = 1;
53 framesCounter = 0; // Reset counter... will be used later...
54 }
55 }
56 else if (state == 1) // State 1: Top and left bars growing
57 {
58 topSideRecWidth += 4;
59 leftSideRecHeight += 4;
60
61 if (topSideRecWidth == 256) state = 2;
62 }
63 else if (state == 2) // State 2: Bottom and right bars growing
64 {
65 bottomSideRecWidth += 4;
66 rightSideRecHeight += 4;
67
68 if (bottomSideRecWidth == 256) state = 3;
69 }
70 else if (state == 3) // State 3: Letters appearing (one by one)
71 {
72 framesCounter++;
73
74 if (framesCounter/12) // Every 12 frames, one more letter!
75 {
76 lettersCount++;
77 framesCounter = 0;
78 }
79
80 if (lettersCount >= 10) // When all letters have appeared, just fade out everything
81 {
82 alpha -= 0.02f;
83
84 if (alpha <= 0.0f)
85 {
86 alpha = 0.0f;
87 state = 4;
88 }
89 }
90 }
91 else if (state == 4) // State 4: Reset and Replay
92 {
93 if (IsKeyPressed('R'))
94 {
95 framesCounter = 0;
96 lettersCount = 0;
97
98 topSideRecWidth = 16;
99 leftSideRecHeight = 16;
100
101 bottomSideRecWidth = 16;
102 rightSideRecHeight = 16;
103
104 alpha = 1.0f;
105 state = 0; // Return to State 0
106 }
107 }
108 //----------------------------------------------------------------------------------
109
110 // Draw
111 //----------------------------------------------------------------------------------
112 BeginDrawing();
113
114 ClearBackground(RAYWHITE);
115
116 if (state == 0)
117 {
118 if ((framesCounter/15)%2) DrawRectangle(logoPositionX, logoPositionY, 16, 16, BLACK);
119 }
120 else if (state == 1)
121 {
122 DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, BLACK);
123 DrawRectangle(logoPositionX, logoPositionY, 16, leftSideRecHeight, BLACK);
124 }
125 else if (state == 2)
126 {
127 DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, BLACK);
128 DrawRectangle(logoPositionX, logoPositionY, 16, leftSideRecHeight, BLACK);
129
130 DrawRectangle(logoPositionX + 240, logoPositionY, 16, rightSideRecHeight, BLACK);
131 DrawRectangle(logoPositionX, logoPositionY + 240, bottomSideRecWidth, 16, BLACK);
132 }
133 else if (state == 3)
134 {
135 DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, Fade(BLACK, alpha));
136 DrawRectangle(logoPositionX, logoPositionY + 16, 16, leftSideRecHeight - 32, Fade(BLACK, alpha));
137
138 DrawRectangle(logoPositionX + 240, logoPositionY + 16, 16, rightSideRecHeight - 32, Fade(BLACK, alpha));
139 DrawRectangle(logoPositionX, logoPositionY + 240, bottomSideRecWidth, 16, Fade(BLACK, alpha));
140
141 DrawRectangle(screenWidth/2 - 112, screenHeight/2 - 112, 224, 224, Fade(RAYWHITE, alpha));
142
143 DrawText(TextSubtext("raylib", 0, lettersCount), screenWidth/2 - 44, screenHeight/2 + 48, 50, Fade(BLACK, alpha));
144 }
145 else if (state == 4)
146 {
147 DrawText("[R] REPLAY", 340, 200, 20, GRAY);
148 }
149
150 EndDrawing();
151 //----------------------------------------------------------------------------------
152 }
153
154 // De-Initialization
155 //--------------------------------------------------------------------------------------
156 CloseWindow(); // Close window and OpenGL context
157 //--------------------------------------------------------------------------------------
158
159 return 0;
160}