You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
176 lines
6.2 KiB
176 lines
6.2 KiB
/*******************************************************************************************
|
|
*
|
|
* raylib [core] example - Generates a random sequence
|
|
*
|
|
* Example originally created with raylib 5.0, last time updated with raylib 5.0
|
|
*
|
|
* Example contributed by Dalton Overmyer (@REDl3east) and reviewed by Ramon Santamaria (@raysan5)
|
|
*
|
|
* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
|
|
* BSD-like license that allows static linking with closed source software
|
|
*
|
|
* Copyright (c) 2023 Dalton Overmyer (@REDl3east)
|
|
*
|
|
********************************************************************************************/
|
|
|
|
#include "raylib.h"
|
|
#include "raymath.h"
|
|
|
|
#include <stdlib.h> // Required for: malloc() and free()
|
|
|
|
typedef struct ColorRect{
|
|
Color c;
|
|
Rectangle r;
|
|
} ColorRect;
|
|
|
|
static Color GenerateRandomColor();
|
|
static ColorRect* GenerateRandomColorRectSequence(float rectCount, float rectWidth, float screenWidth, float screenHeight);
|
|
static void ShuffleColorRectSequence(ColorRect* rectangles, int rectCount);
|
|
static void DrawTextCenterKeyHelp(const char* key, const char* text, int posX, int posY, int fontSize, Color color);
|
|
|
|
//------------------------------------------------------------------------------------
|
|
// Program main entry point
|
|
//------------------------------------------------------------------------------------
|
|
int main(void) {
|
|
// Initialization
|
|
//--------------------------------------------------------------------------------------
|
|
const int screenWidth = 800;
|
|
const int screenHeight = 450;
|
|
|
|
InitWindow(screenWidth, screenHeight, "raylib [core] example - Generates a random sequence");
|
|
|
|
int rectCount = 20;
|
|
float rectSize = (float)screenWidth/rectCount;
|
|
ColorRect* rectangles = GenerateRandomColorRectSequence((float)rectCount, rectSize, (float)screenWidth, 0.75f * screenHeight);
|
|
|
|
SetTargetFPS(60);
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
// Main game loop
|
|
while (!WindowShouldClose()) // Detect window close button or ESC key
|
|
{
|
|
// Update
|
|
//----------------------------------------------------------------------------------
|
|
|
|
if(IsKeyPressed(KEY_SPACE))
|
|
{
|
|
ShuffleColorRectSequence(rectangles, rectCount);
|
|
}
|
|
|
|
if(IsKeyPressed(KEY_UP))
|
|
{
|
|
rectCount++;
|
|
rectSize = (float)screenWidth/rectCount;
|
|
free(rectangles);
|
|
rectangles = GenerateRandomColorRectSequence((float)rectCount, rectSize, (float)screenWidth, 0.75f * screenHeight);
|
|
}
|
|
|
|
if(IsKeyPressed(KEY_DOWN))
|
|
{
|
|
if(rectCount >= 4){
|
|
rectCount--;
|
|
rectSize = (float)screenWidth/rectCount;
|
|
free(rectangles);
|
|
rectangles = GenerateRandomColorRectSequence((float)rectCount, rectSize, (float)screenWidth, 0.75f * screenHeight);
|
|
}
|
|
}
|
|
|
|
// Draw
|
|
//----------------------------------------------------------------------------------
|
|
BeginDrawing();
|
|
|
|
ClearBackground(RAYWHITE);
|
|
|
|
int fontSize = 20;
|
|
for(int x=0;x<rectCount;x++)
|
|
{
|
|
DrawRectangleRec(rectangles[x].r, rectangles[x].c);
|
|
DrawTextCenterKeyHelp("SPACE", "to shuffle the sequence.", 10, screenHeight - 96, fontSize, BLACK);
|
|
DrawTextCenterKeyHelp("UP", "to add a rectangle and generate a new sequence.", 10, screenHeight - 64, fontSize, BLACK);
|
|
DrawTextCenterKeyHelp("DOWN", "to remove a rectangle and generate a new sequence.", 10, screenHeight - 32, fontSize, BLACK);
|
|
}
|
|
|
|
const char* rectCountText = TextFormat("%d rectangles", rectCount);
|
|
int rectCountTextSize = MeasureText(rectCountText, fontSize);
|
|
DrawText(rectCountText, screenWidth - rectCountTextSize - 10, 10, fontSize, BLACK);
|
|
|
|
DrawFPS(10, 10);
|
|
|
|
EndDrawing();
|
|
//----------------------------------------------------------------------------------
|
|
}
|
|
|
|
// De-Initialization
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
free(rectangles);
|
|
CloseWindow(); // Close window and OpenGL context
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
return 0;
|
|
}
|
|
|
|
static Color GenerateRandomColor()
|
|
{
|
|
return CLITERAL(Color){
|
|
GetRandomValue(0, 255),
|
|
GetRandomValue(0, 255),
|
|
GetRandomValue(0, 255),
|
|
255,
|
|
};
|
|
}
|
|
|
|
static ColorRect* GenerateRandomColorRectSequence(float rectCount, float rectWidth, float screenWidth, float screenHeight){
|
|
int *seq = LoadRandomSequence((unsigned int)rectCount, 0, (unsigned int)rectCount-1);
|
|
ColorRect* rectangles = (ColorRect *)malloc((int)rectCount*sizeof(ColorRect));
|
|
|
|
float rectSeqWidth = rectCount * rectWidth;
|
|
float startX = (screenWidth - rectSeqWidth) * 0.5f;
|
|
|
|
for(int x=0;x<rectCount;x++){
|
|
int rectHeight = (int)Remap((float)seq[x], 0, rectCount-1, 0, screenHeight);
|
|
rectangles[x].c = GenerateRandomColor();
|
|
rectangles[x].r = CLITERAL(Rectangle){
|
|
startX + x * rectWidth, screenHeight - rectHeight, rectWidth, (float)rectHeight
|
|
};
|
|
}
|
|
UnloadRandomSequence(seq);
|
|
return rectangles;
|
|
}
|
|
|
|
static void ShuffleColorRectSequence(ColorRect* rectangles, int rectCount)
|
|
{
|
|
int *seq = LoadRandomSequence(rectCount, 0, rectCount-1);
|
|
for(int i1=0;i1<rectCount;i1++){
|
|
ColorRect* r1 = &rectangles[i1];
|
|
ColorRect* r2 = &rectangles[seq[i1]];
|
|
|
|
// swap only the color and height
|
|
ColorRect tmp = *r1;
|
|
r1->c = r2->c;
|
|
r1->r.height = r2->r.height;
|
|
r1->r.y = r2->r.y;
|
|
r2->c = tmp.c;
|
|
r2->r.height = tmp.r.height;
|
|
r2->r.y = tmp.r.y;
|
|
|
|
}
|
|
UnloadRandomSequence(seq);
|
|
}
|
|
|
|
static void DrawTextCenterKeyHelp(const char* key, const char* text, int posX, int posY, int fontSize, Color color)
|
|
{
|
|
int spaceSize = MeasureText(" ", fontSize);
|
|
int pressSize = MeasureText("Press", fontSize);
|
|
int keySize = MeasureText(key, fontSize);
|
|
int textSize = MeasureText(text, fontSize);
|
|
int totalSize = pressSize + 2 * spaceSize + keySize + 2 * spaceSize + textSize;
|
|
int textSizeCurrent = 0;
|
|
|
|
DrawText("Press", posX, posY, fontSize, color);
|
|
textSizeCurrent += pressSize + 2 * spaceSize;
|
|
DrawText(key, posX + textSizeCurrent, posY, fontSize, RED);
|
|
DrawRectangle(posX + textSizeCurrent, posY + fontSize, keySize, 3, RED);
|
|
textSizeCurrent += keySize + 2 * spaceSize;
|
|
DrawText(text, posX + textSizeCurrent, posY, fontSize, color);
|
|
}
|