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RobinsAviary 2025-11-14 18:59:05 -05:00
parent 5e765c02df
commit 43396137ec
1 changed files with 18 additions and 18 deletions
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36
examples/shapes/shapes_rlgl_color_wheel.c
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@ -46,7 +46,7 @@ int main(void)
float value = 1.0f; float value = 1.0f;
// The center of the screen // The center of the screen
Vector2 center = { (float)screenWidth / 2.0f, (float)screenHeight / 2.0f }; Vector2 center = { (float)screenWidth/2.0f, (float)screenHeight/2.0f };
// The location of the color wheel // The location of the color wheel
Vector2 circlePosition = center; Vector2 circlePosition = center;
@ -121,12 +121,12 @@ int main(void)
circlePosition = Vector2Add(Vector2Multiply(Vector2Subtract(circlePosition, center), (Vector2){ 0.975f, 0.975f }), center); circlePosition = Vector2Add(Vector2Multiply(Vector2Subtract(circlePosition, center), (Vector2){ 0.975f, 0.975f }), center);
} }
float distance = Vector2Distance(center, circlePosition) / pointScale; float distance = Vector2Distance(center, circlePosition)/pointScale;
float angle = ((Vector2Angle((Vector2){ 0.0f, -pointScale }, Vector2Subtract(center, circlePosition)) / PI + 1.0f) / 2.0f); float angle = ((Vector2Angle((Vector2){ 0.0f, -pointScale }, Vector2Subtract(center, circlePosition))/PI + 1.0f) / 2.0f);
if (distance > 1.0f) if (distance > 1.0f)
{ {
circlePosition = Vector2Add((Vector2){ sinf(angle * (PI * 2.0f)) * pointScale, -cosf(angle * (PI * 2.0f)) * pointScale }, center); circlePosition = Vector2Add((Vector2){ sinf(angle*(PI * 2.0f)) * pointScale, -cosf(angle*(PI*2.0f))*pointScale }, center);
} }
} }
@ -150,17 +150,17 @@ int main(void)
circlePosition = GetMousePosition(); circlePosition = GetMousePosition();
float distance = Vector2Distance(center, circlePosition) / pointScale; float distance = Vector2Distance(center, circlePosition) / pointScale;
float angle = ((Vector2Angle((Vector2){ 0.0f, -pointScale }, Vector2Subtract(center, circlePosition)) / PI + 1.0f) / 2.0f); float angle = ((Vector2Angle((Vector2){ 0.0f, -pointScale }, Vector2Subtract(center, circlePosition))/PI + 1.0f)/2.0f);
float angle360 = angle * 360.0f; float angle360 = angle*360.0f;
if (distance > 1.0f) if (distance > 1.0f)
{ {
circlePosition = Vector2Add((Vector2){ sinf(angle * (PI * 2.0f)) * pointScale, -cosf(angle * (PI * 2.0f)) * pointScale }, center); circlePosition = Vector2Add((Vector2){ sinf(angle*(PI*2.0f))*pointScale, -cosf(angle*(PI* 2.0f))*pointScale }, center);
} }
float valueActual = Clamp(distance, 0.0f, 1.0f); float valueActual = Clamp(distance, 0.0f, 1.0f);
color = ColorLerp((Color){ (int)(value * 255.0f), (int)(value * 255.0f), (int)(value * 255.0f), 255 }, ColorFromHSV(angle360, Clamp(distance, 0.0f, 1.0f), 1.0f), valueActual); color = ColorLerp((Color){ (int)(value*255.0f), (int)(value*255.0f), (int)(value*255.0f), 255 }, ColorFromHSV(angle360, Clamp(distance, 0.0f, 1.0f), 1.0f), valueActual);
} }
// Update render mode accordingly // Update render mode accordingly
@ -179,9 +179,9 @@ int main(void)
rlBegin(renderType); rlBegin(renderType);
for (unsigned int i = 0; i < triangleCount; i++) for (unsigned int i = 0; i < triangleCount; i++)
{ {
float angleOffset = ((PI * 2.0f) / (float)triangleCount); float angleOffset = ((PI*2.0f)/(float)triangleCount);
float angle = angleOffset * (float)i; float angle = angleOffset*(float)i;
float angleOffsetCalculated = ((float)i + 1) * angleOffset; float angleOffsetCalculated = ((float)i + 1)*angleOffset;
Vector2 scale = (Vector2){ pointScale, pointScale }; Vector2 scale = (Vector2){ pointScale, pointScale };
Vector2 offset = Vector2Multiply((Vector2){ sinf(angle), -cosf(angle) }, scale); Vector2 offset = Vector2Multiply((Vector2){ sinf(angle), -cosf(angle) }, scale);
@ -190,8 +190,8 @@ int main(void)
Vector2 position = Vector2Add(center, offset); Vector2 position = Vector2Add(center, offset);
Vector2 position2 = Vector2Add(center, offset2); Vector2 position2 = Vector2Add(center, offset2);
float angleNonRadian = (angle / (2.0f * PI)) * 360.0f; float angleNonRadian = (angle/(2.0f*PI))*360.0f;
float angleNonRadianOffset = (angleOffset / (2.0f * PI)) * 360.0f; float angleNonRadianOffset = (angleOffset/(2.0f*PI))*360.0f;
Color currentColor = ColorFromHSV(angleNonRadian, 1.0f, 1.0f); Color currentColor = ColorFromHSV(angleNonRadian, 1.0f, 1.0f);
Color offsetColor = ColorFromHSV(angleNonRadian + angleNonRadianOffset, 1.0f, 1.0f); Color offsetColor = ColorFromHSV(angleNonRadian + angleNonRadianOffset, 1.0f, 1.0f);
@ -229,7 +229,7 @@ int main(void)
// Make the handle slightly more visible overtop darker colors // Make the handle slightly more visible overtop darker colors
Color handleColor = BLACK; Color handleColor = BLACK;
if (Vector2Distance(center, circlePosition) / pointScale <= 0.5f && value <= 0.5f) if (Vector2Distance(center, circlePosition)/pointScale <= 0.5f && value <= 0.5f)
{ {
handleColor = DARKGRAY; handleColor = DARKGRAY;
} }
@ -265,13 +265,13 @@ int main(void)
// If the slider was clicked, update the current color // If the slider was clicked, update the current color
if (sliderClicked) if (sliderClicked)
{ {
float distance = Vector2Distance(center, circlePosition) / pointScale; float distance = Vector2Distance(center, circlePosition)/pointScale;
float angle = ((Vector2Angle((Vector2){ 0.0f, -pointScale }, Vector2Subtract(center, circlePosition)) / PI + 1.0f) / 2.0f); float angle = ((Vector2Angle((Vector2){ 0.0f, -pointScale }, Vector2Subtract(center, circlePosition))/PI + 1.0f)/2.0f);
float angle360 = angle * 360.0f; float angle360 = angle*360.0f;
float valueActual = Clamp(distance, 0.0f, 1.0f); float valueActual = Clamp(distance, 0.0f, 1.0f);
color = ColorLerp((Color){ (int)(value * 255.0f), (int)(value * 255.0f), (int)(value * 255.0f), 255 }, ColorFromHSV(angle360, Clamp(distance, 0.0f, 1.0f), 1.0f), valueActual); color = ColorLerp((Color){ (int)(value*255.0f), (int)(value*255.0f), (int)(value*255.0f), 255 }, ColorFromHSV(angle360, Clamp(distance, 0.0f, 1.0f), 1.0f), valueActual);
} }
// Draw FPS next to outlined color preview // Draw FPS next to outlined color preview