140 lines
4.2 KiB
Plaintext
140 lines
4.2 KiB
Plaintext
#include <raylib.h>
|
|
#include <rdrawing.h>
|
|
#include <math.h>
|
|
|
|
#define RAYGUI_IMPLEMENTATION
|
|
#include <raygui/raygui.h>
|
|
|
|
void updateRadius(int baseL, int innerL,int pointL, int *pBaseR, int *pInnerR, int *pPointR) {
|
|
int totalL=baseL;
|
|
if (innerL>baseL) {
|
|
if (innerL>pointL)
|
|
totalL = (2*innerL-baseL);
|
|
else {
|
|
totalL = (innerL+pointL-baseL);
|
|
}
|
|
} else {
|
|
if (pointL>innerL)
|
|
totalL = baseL-innerL+pointL;
|
|
}
|
|
int totalR = 420;
|
|
int remainder = totalR % totalL;
|
|
if (remainder!=0) {
|
|
if (remainder < totalL / 2) {
|
|
totalR -= remainder;
|
|
} else {
|
|
totalR += ( totalL - remainder);
|
|
}
|
|
}
|
|
*pBaseR = totalR / totalL * baseL;
|
|
*pInnerR = totalR / totalL * innerL;
|
|
*pPointR = totalR / totalL * pointL;
|
|
}
|
|
|
|
|
|
int main() {
|
|
int baseL=6;
|
|
int innerL=3;
|
|
int pointL=6;
|
|
int baseR,innerR,pointR;
|
|
int cx=450,cy=450;
|
|
int speed = 1;
|
|
Color trackColor = BLUE;
|
|
updateRadius(baseL, innerL, pointL, &baseR, &innerR, &pointR);
|
|
InitWindow(1300,900,"Hypotrochoid");
|
|
SetTraceLogLevel(LOG_WARNING);
|
|
SetTargetFPS(60);
|
|
GuiSetStyle(DEFAULT,TEXT_SIZE,20);
|
|
|
|
Image trackImage=GenImageColor(900,900,WHITE);
|
|
//border
|
|
ImageFillRectangleEx(&trackImage,0,0,900,900,LIGHTGRAY);
|
|
ImageFillRectangleEx(&trackImage,5,5,890,890,WHITE);
|
|
|
|
Image circlesImage = GenImageColor(900,900,BLANK);
|
|
float r=0;
|
|
int lastx,lasty;
|
|
bool skip=true;
|
|
lasty=cy;
|
|
lastx=cx+baseR;
|
|
int frameCount = 0;
|
|
while(!WindowShouldClose()) {
|
|
//GUI
|
|
int newInnerL = GuiSliderBar((Rectangle){ 70, 20, 200, 30 },"Inner",TextFormat("%i", (int)innerL), innerL, 1, 50);
|
|
int newBaseL = GuiSliderBar((Rectangle){ 70, 60, 200, 30 },"Base",TextFormat("%i", (int)baseL), baseL, 1, 50);
|
|
int newPointL = GuiSliderBar((Rectangle){ 70, 100, 200, 30 },"Point",TextFormat("%i", (int)pointL), pointL, 1, 50);
|
|
speed = GuiSliderBar((Rectangle){ 70, 150, 200, 30 },"Speed",TextFormat("%i", (int)speed), speed, 1, 50);
|
|
GuiLabel((Rectangle){ 20, 220, 80, 30 },TextFormat("Color: 0x%X%X%X ",(int)(trackColor.r), (int)(trackColor.g),(int)(trackColor.b)));
|
|
trackColor= GuiColorPicker((Rectangle){ 50, 250, 196, 192 }, NULL, trackColor);
|
|
int doClear = GuiButton((Rectangle){ 120, 700, 80, 30 },"Clear");
|
|
if (newInnerL!=innerL || newBaseL!=baseL || newPointL!=pointL) {
|
|
if (newInnerL!=innerL)
|
|
pointL=newInnerL;
|
|
else
|
|
pointL=newPointL;
|
|
innerL=newInnerL;
|
|
baseL=newBaseL;
|
|
updateRadius(baseL, innerL, pointL, &baseR, &innerR, &pointR);
|
|
r=0;
|
|
skip=true;
|
|
ImageClearBackground(&trackImage,WHITE);
|
|
ImageFillRectangleEx(&trackImage,0,0,900,900,LIGHTGRAY);
|
|
ImageFillRectangleEx(&trackImage,5,5,890,890,WHITE);
|
|
} else if (doClear) {
|
|
ImageClearBackground(&trackImage,WHITE);
|
|
ImageFillRectangleEx(&trackImage,0,0,900,900,LIGHTGRAY);
|
|
ImageFillRectangleEx(&trackImage,5,5,890,890,WHITE);
|
|
}
|
|
//update datas
|
|
float innerCX=cx+ (baseR-innerR)*cos(r);
|
|
float innerCY=cy+ (baseR-innerR)*sin(r);
|
|
int x,y;
|
|
float theta;
|
|
if (innerL<baseL) {
|
|
theta = r * (baseL-innerL) / innerL;
|
|
x=round(innerCX + pointR * cos(theta));
|
|
y=round(innerCY - pointR * sin(theta));
|
|
} else {
|
|
theta = r * (innerL-baseL) / innerL;
|
|
x=round(innerCX + pointR * cos(theta));
|
|
y=round(innerCY + pointR * sin(theta));
|
|
}
|
|
|
|
//update image (in CPU)
|
|
//ImageClearBackground(&trackImage,WHITE);
|
|
if (!skip)
|
|
ImageDrawLineEx(&trackImage,lastx,lasty,x,y,3,trackColor);
|
|
|
|
frameCount++;
|
|
if (frameCount>=speed) {
|
|
ImageClearBackground(&circlesImage,BLANK);
|
|
//base circle
|
|
ImageDrawCircleEx(&circlesImage,cx,cy,baseR,1,LIGHTRED);
|
|
ImageDrawCircleEx(&circlesImage,innerCX,innerCY,innerR,1,LIGHTGRAY);
|
|
ImageDrawLineEx(&circlesImage,innerCX,innerCY,cx,cy,1,LIGHTRED);
|
|
ImageDrawLineEx(&circlesImage,innerCX,innerCY,x,y,1,LIGHTGRAY);
|
|
ImageDrawPointEx(&circlesImage,x,y,7,RED);
|
|
|
|
//Drawing in GPU
|
|
Texture trackTexture = LoadTextureFromImage(trackImage);
|
|
Texture circlesTexture = LoadTextureFromImage(circlesImage);
|
|
BeginDrawing();
|
|
ClearBackground(WHITE);
|
|
DrawTexture(trackTexture,300,0,WHITE);
|
|
DrawTexture(circlesTexture,300,0,WHITE);
|
|
EndDrawing();
|
|
UnloadTexture(circlesTexture);
|
|
UnloadTexture(trackTexture);
|
|
frameCount=0;
|
|
}
|
|
lastx=x;
|
|
lasty=y;
|
|
skip=false;
|
|
r+=0.01;
|
|
}
|
|
|
|
//Clean up
|
|
UnloadImage(circlesImage);
|
|
UnloadImage(trackImage);
|
|
CloseWindow();
|
|
} |