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Update C sources, add new functions

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This commit is contained in:
Milan Nikolic 2018-11-17 21:34:52 +01:00
parent adf3401c3c
commit 48689803b8
28 changed files with 2681 additions and 1918 deletions
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286
raylib/shapes.c
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@ -9,7 +9,7 @@
* Allows drawing rectangles and text with a single draw call, very useful for GUI systems!
*
* #define SUPPORT_QUADS_DRAW_MODE
* Use QUADS instead of TRIANGLES for drawing when possible.
* Use QUADS instead of TRIANGLES for drawing when possible.
* Some lines-based shapes could still use lines
*
* LICENSE: zlib/libpng
@ -54,12 +54,14 @@
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
// ...
static Texture2D texShapes = { 0 };
static Rectangle recTexShapes = { 0 };
//----------------------------------------------------------------------------------
// Module specific Functions Declaration
//----------------------------------------------------------------------------------
static float EaseCubicInOut(float t, float b, float c, float d); // Cubic easing
static Texture2D GetShapesTexture(void); // Get texture to draw shapes
//----------------------------------------------------------------------------------
// Module Functions Definition
@ -114,27 +116,34 @@ void DrawLineEx(Vector2 startPos, Vector2 endPos, float thick, Color color)
startPos = endPos;
endPos = tempPos;
}
float dx = endPos.x - startPos.x;
float dy = endPos.y - startPos.y;
float d = sqrtf(dx*dx + dy*dy);
float angle = asinf(dy/d);
rlEnableTexture(GetTextureDefault().id);
rlEnableTexture(GetShapesTexture().id);
rlPushMatrix();
rlTranslatef((float)startPos.x, (float)startPos.y, 0);
rlRotatef(RAD2DEG*angle, 0, 0, 1);
rlTranslatef(0, -thick/2.0f, 0);
rlTranslatef(0, (thick > 1.0f) ? -thick/2.0f : -1.0f, 0);
rlBegin(RL_QUADS);
rlColor4ub(color.r, color.g, color.b, color.a);
rlNormal3f(0.0f, 0.0f, 1.0f);
rlTexCoord2f(recTexShapes.x/texShapes.width, recTexShapes.y/texShapes.height);
rlVertex2f(0.0f, 0.0f);
rlTexCoord2f(recTexShapes.x/texShapes.width, (recTexShapes.y + recTexShapes.height)/texShapes.height);
rlVertex2f(0.0f, thick);
rlTexCoord2f((recTexShapes.x + recTexShapes.width)/texShapes.width, (recTexShapes.y + recTexShapes.height)/texShapes.height);
rlVertex2f(d, thick);
rlTexCoord2f((recTexShapes.x + recTexShapes.width)/texShapes.width, recTexShapes.y/texShapes.height);
rlVertex2f(d, 0.0f);
rlEnd();
rlPopMatrix();
@ -153,12 +162,12 @@ void DrawLineBezier(Vector2 startPos, Vector2 endPos, float thick, Color color)
for (int i = 1; i <= LINE_DIVISIONS; i++)
{
// Cubic easing in-out
// NOTE: Easing is calculated only for y position value
// NOTE: Easing is calculated only for y position value
current.y = EaseCubicInOut((float)i, startPos.y, endPos.y - startPos.y, (float)LINE_DIVISIONS);
current.x = previous.x + (endPos.x - startPos.x)/ (float)LINE_DIVISIONS;
DrawLineEx(previous, current, thick, color);
previous = current;
}
}
@ -174,7 +183,7 @@ void DrawCircle(int centerX, int centerY, float radius, Color color)
void DrawCircleGradient(int centerX, int centerY, float radius, Color color1, Color color2)
{
if (rlCheckBufferLimit(RL_TRIANGLES, 3*36)) rlglDraw();
rlBegin(RL_TRIANGLES);
for (int i = 0; i < 360; i += 10)
{
@ -191,24 +200,31 @@ void DrawCircleGradient(int centerX, int centerY, float radius, Color color1, Co
// Draw a color-filled circle (Vector version)
// NOTE: On OpenGL 3.3 and ES2 we use QUADS to avoid drawing order issues (view rlglDraw)
void DrawCircleV(Vector2 center, float radius, Color color)
{
{
#if defined(SUPPORT_QUADS_DRAW_MODE)
if (rlCheckBufferLimit(RL_QUADS, 4*(36/2))) rlglDraw();
rlEnableTexture(GetTextureDefault().id); // Default white texture
rlEnableTexture(GetShapesTexture().id);
rlBegin(RL_QUADS);
for (int i = 0; i < 360; i += 20)
{
rlColor4ub(color.r, color.g, color.b, color.a);
rlTexCoord2f(recTexShapes.x/texShapes.width, recTexShapes.y/texShapes.height);
rlVertex2f(center.x, center.y);
rlTexCoord2f(recTexShapes.x/texShapes.width, (recTexShapes.y + recTexShapes.height)/texShapes.height);
rlVertex2f(center.x + sinf(DEG2RAD*i)*radius, center.y + cosf(DEG2RAD*i)*radius);
rlTexCoord2f((recTexShapes.x + recTexShapes.width)/texShapes.width, (recTexShapes.y + recTexShapes.height)/texShapes.height);
rlVertex2f(center.x + sinf(DEG2RAD*(i + 10))*radius, center.y + cosf(DEG2RAD*(i + 10))*radius);
rlTexCoord2f((recTexShapes.x + recTexShapes.width)/texShapes.width, recTexShapes.y/texShapes.height);
rlVertex2f(center.x + sinf(DEG2RAD*(i + 20))*radius, center.y + cosf(DEG2RAD*(i + 20))*radius);
}
rlEnd();
rlDisableTexture();
#else
if (rlCheckBufferLimit(RL_TRIANGLES, 3*(36/2))) rlglDraw();
@ -217,7 +233,7 @@ void DrawCircleV(Vector2 center, float radius, Color color)
for (int i = 0; i < 360; i += 10)
{
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2f(center.x, center.y);
rlVertex2f(center.x + sinf(DEG2RAD*i)*radius, center.y + cosf(DEG2RAD*i)*radius);
rlVertex2f(center.x + sinf(DEG2RAD*(i + 10))*radius, center.y + cosf(DEG2RAD*(i + 10))*radius);
@ -230,7 +246,7 @@ void DrawCircleV(Vector2 center, float radius, Color color)
void DrawCircleLines(int centerX, int centerY, float radius, Color color)
{
if (rlCheckBufferLimit(RL_LINES, 2*36)) rlglDraw();
rlBegin(RL_LINES);
rlColor4ub(color.r, color.g, color.b, color.a);
@ -246,104 +262,55 @@ void DrawCircleLines(int centerX, int centerY, float radius, Color color)
// Draw a color-filled rectangle
void DrawRectangle(int posX, int posY, int width, int height, Color color)
{
Vector2 position = { (float)posX, (float)posY };
Vector2 size = { (float)width, (float)height };
DrawRectangleV(position, size, color);
DrawRectangleV((Vector2){ (float)posX, (float)posY }, (Vector2){ (float)width, (float)height }, color);
}
// Draw a color-filled rectangle (Vector version)
// NOTE: On OpenGL 3.3 and ES2 we use QUADS to avoid drawing order issues (view rlglDraw)
void DrawRectangleV(Vector2 position, Vector2 size, Color color)
{
#if defined(SUPPORT_QUADS_DRAW_MODE)
#if defined(SUPPORT_FONT_TEXTURE)
// Draw rectangle using font texture white character
rlEnableTexture(GetFontDefault().texture.id);
Color colors[4] = { color, color, color, color };
rlBegin(RL_QUADS);
rlColor4ub(color.r, color.g, color.b, color.a);
rlNormal3f(0.0f, 0.0f, 1.0f);
// NOTE: Default raylib font character 95 is a white square
rlTexCoord2f((float)GetFontDefault().chars[95].rec.x/GetFontDefault().texture.width,
(float)GetFontDefault().chars[95].rec.y/GetFontDefault().texture.height);
rlVertex2f(position.x, position.y);
rlTexCoord2f((float)GetFontDefault().chars[95].rec.x/GetFontDefault().texture.width,
(float)(GetFontDefault().chars[95].rec.y + GetFontDefault().chars[95].rec.height)/GetFontDefault().texture.height);
rlVertex2f(position.x, position.y + size.y);
rlTexCoord2f((float)(GetFontDefault().chars[95].rec.x + GetFontDefault().chars[95].rec.width)/GetFontDefault().texture.width,
(float)(GetFontDefault().chars[95].rec.y + GetFontDefault().chars[95].rec.height)/GetFontDefault().texture.height);
rlVertex2f(position.x + size.x, position.y + size.y);
rlTexCoord2f((float)(GetFontDefault().chars[95].rec.x + GetFontDefault().chars[95].rec.width)/GetFontDefault().texture.width,
(float)GetFontDefault().chars[95].rec.y/GetFontDefault().texture.height);
rlVertex2f(position.x + size.x, position.y);
rlEnd();
rlDisableTexture();
#else
rlEnableTexture(GetTextureDefault().id); // Default white texture
rlBegin(RL_QUADS);
rlColor4ub(color.r, color.g, color.b, color.a);
rlNormal3f(0.0f, 0.0f, 1.0f);
rlTexCoord2f(0.0f, 0.0f);
rlVertex2f(position.x, position.y);
rlTexCoord2f(0.0f, 1.0f);
rlVertex2f(position.x, position.y + size.y);
rlTexCoord2f(1.0f, 1.0f);
rlVertex2f(position.x + size.x, position.y + size.y);
rlTexCoord2f(1.0f, 0.0f);
rlVertex2f(position.x + size.x, position.y);
rlEnd();
rlDisableTexture();
#endif // SUPPORT_FONT_TEXTURE
#else
rlBegin(RL_TRIANGLES);
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2i(position.x, position.y);
rlVertex2i(position.x, position.y + size.y);
rlVertex2i(position.x + size.x, position.y + size.y);
rlVertex2i(position.x, position.y);
rlVertex2i(position.x + size.x, position.y + size.y);
rlVertex2i(position.x + size.x, position.y);
rlEnd();
#endif // SUPPORT_QUADS_DRAW_MODE
DrawRectanglePro((Rectangle){ position.x, position.y, size.x, size.y }, (Vector2){ 0.0f, 0.0f }, 0.0f, colors);
}
// Draw a color-filled rectangle
void DrawRectangleRec(Rectangle rec, Color color)
{
DrawRectangle((int)rec.x, (int)rec.y, (int)rec.width, (int)rec.height, color);
Color colors[4] = { color, color, color, color };
DrawRectanglePro(rec, (Vector2){ 0.0f, 0.0f }, 0.0f, colors);
}
void DrawRectanglePro(Rectangle rec, Vector2 origin, float rotation, Color color)
// Draw a color-filled rectangle with pro parameters
void DrawRectanglePro(Rectangle rec, Vector2 origin, float rotation, Color colors[4])
{
rlEnableTexture(GetTextureDefault().id);
rlEnableTexture(GetShapesTexture().id);
rlPushMatrix();
rlTranslatef(rec.x, rec.y, 0);
//rlTranslatef(rec.x, rec.y, 0); // Already considered on vertex position
rlRotatef(rotation, 0, 0, 1);
rlTranslatef(-origin.x, -origin.y, 0);
rlBegin(RL_QUADS);
rlColor4ub(color.r, color.g, color.b, color.a);
rlNormal3f(0.0f, 0.0f, 1.0f); // Normal vector pointing towards viewer
rlNormal3f(0.0f, 0.0f, 1.0f);
rlVertex2f(0.0f, 0.0f);
rlVertex2f(0.0f, rec.height);
rlVertex2f(rec.width, rec.height);
rlVertex2f(rec.width, 0.0f);
// NOTE: Default raylib font character 95 is a white square
rlColor4ub(colors[0].r, colors[0].g, colors[0].b, colors[0].a);
rlTexCoord2f(recTexShapes.x/texShapes.width, recTexShapes.y/texShapes.height);
rlVertex2f(rec.x, rec.y);
rlColor4ub(colors[1].r, colors[1].g, colors[1].b, colors[1].a);
rlTexCoord2f(recTexShapes.x/texShapes.width, (recTexShapes.y + recTexShapes.height)/texShapes.height);
rlVertex2f(rec.x, rec.y + rec.height);
rlColor4ub(colors[2].r, colors[2].g, colors[2].b, colors[2].a);
rlTexCoord2f((recTexShapes.x + recTexShapes.width)/texShapes.width, (recTexShapes.y + recTexShapes.height)/texShapes.height);
rlVertex2f(rec.x + rec.width, rec.y + rec.height);
rlColor4ub(colors[3].r, colors[3].g, colors[3].b, colors[3].a);
rlTexCoord2f((recTexShapes.x + recTexShapes.width)/texShapes.width, recTexShapes.y/texShapes.height);
rlVertex2f(rec.x + rec.width, rec.y);
rlEnd();
rlPopMatrix();
@ -368,67 +335,15 @@ void DrawRectangleGradientH(int posX, int posY, int width, int height, Color col
// NOTE: Colors refer to corners, starting at top-lef corner and counter-clockwise
void DrawRectangleGradientEx(Rectangle rec, Color col1, Color col2, Color col3, Color col4)
{
#if defined(SUPPORT_FONT_TEXTURE)
// Draw rectangle using font texture white character
rlEnableTexture(GetFontDefault().texture.id);
Color colors[4] = { col1, col2, col3, col4 };
rlBegin(RL_QUADS);
rlNormal3f(0.0f, 0.0f, 1.0f);
// NOTE: Default raylib font character 95 is a white square
rlColor4ub(col1.r, col1.g, col1.b, col1.a);
rlTexCoord2f(GetFontDefault().chars[95].rec.x/GetFontDefault().texture.width,
GetFontDefault().chars[95].rec.y/GetFontDefault().texture.height);
rlVertex2f(rec.x, rec.y);
rlColor4ub(col2.r, col2.g, col2.b, col2.a);
rlTexCoord2f(GetFontDefault().chars[95].rec.x/GetFontDefault().texture.width,
(GetFontDefault().chars[95].rec.y + GetFontDefault().chars[95].rec.height)/GetFontDefault().texture.height);
rlVertex2f(rec.x, rec.y + rec.height);
rlColor4ub(col3.r, col3.g, col3.b, col3.a);
rlTexCoord2f((GetFontDefault().chars[95].rec.x + GetFontDefault().chars[95].rec.width)/GetFontDefault().texture.width,
(GetFontDefault().chars[95].rec.y + GetFontDefault().chars[95].rec.height)/GetFontDefault().texture.height);
rlVertex2f(rec.x + rec.width, rec.y + rec.height);
rlColor4ub(col4.r, col4.g, col4.b, col4.a);
rlTexCoord2f((GetFontDefault().chars[95].rec.x + GetFontDefault().chars[95].rec.width)/GetFontDefault().texture.width,
GetFontDefault().chars[95].rec.y/GetFontDefault().texture.height);
rlVertex2f(rec.x + rec.width, rec.y);
rlEnd();
rlDisableTexture();
#else
rlEnableTexture(GetTextureDefault().id); // Default white texture
rlBegin(RL_QUADS);
rlNormal3f(0.0f, 0.0f, 1.0f);
rlColor4ub(col1.r, col1.g, col1.b, col1.a);
rlTexCoord2f(0.0f, 0.0f);
rlVertex2f(rec.x, rec.y);
rlColor4ub(col2.r, col2.g, col2.b, col2.a);
rlTexCoord2f(0.0f, 1.0f);
rlVertex2f(rec.x, rec.y + rec.height);
rlColor4ub(col3.r, col3.g, col3.b, col3.a);
rlTexCoord2f(1.0f, 1.0f);
rlVertex2f(rec.x + rec.width, rec.y + rec.height);
rlColor4ub(col4.r, col4.g, col4.b, col4.a);
rlTexCoord2f(1.0f, 0.0f);
rlVertex2f(rec.x + rec.width, rec.y);
rlEnd();
rlDisableTexture();
#endif
DrawRectanglePro(rec, (Vector2){ 0.0f, 0.0f }, 0.0f, colors);
}
// Draw rectangle outline
// NOTE: On OpenGL 3.3 and ES2 we use QUADS to avoid drawing order issues (view rlglDraw)
void DrawRectangleLines(int posX, int posY, int width, int height, Color color)
{
{
#if defined(SUPPORT_QUADS_DRAW_MODE)
DrawRectangle(posX, posY, width, 1, color);
DrawRectangle(posX + width - 1, posY + 1, 1, height - 2, color);
@ -454,13 +369,13 @@ void DrawRectangleLines(int posX, int posY, int width, int height, Color color)
// Draw rectangle outline with extended parameters
void DrawRectangleLinesEx(Rectangle rec, int lineThick, Color color)
{
{
if (lineThick > rec.width || lineThick > rec.height)
{
if(rec.width > rec.height) lineThick = (int)rec.height/2;
else if (rec.width < rec.height) lineThick = (int)rec.width/2;
}
}
DrawRectangle( (int)rec.x, (int)rec.y, (int)rec.width, lineThick, color);
DrawRectangle( (int)(rec.x - lineThick + rec.width), (int)(rec.y + lineThick), lineThick, (int)(rec.height - lineThick*2.0f), color);
DrawRectangle( (int)rec.x, (int)(rec.y + rec.height - lineThick), (int)rec.width, lineThick, color);
@ -471,16 +386,24 @@ void DrawRectangleLinesEx(Rectangle rec, int lineThick, Color color)
void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color)
{
#if defined(SUPPORT_QUADS_DRAW_MODE)
rlEnableTexture(GetTextureDefault().id); // Default white texture
rlEnableTexture(GetShapesTexture().id);
rlBegin(RL_QUADS);
rlColor4ub(color.r, color.g, color.b, color.a);
rlTexCoord2f(recTexShapes.x/texShapes.width, recTexShapes.y/texShapes.height);
rlVertex2f(v1.x, v1.y);
rlTexCoord2f(recTexShapes.x/texShapes.width, (recTexShapes.y + recTexShapes.height)/texShapes.height);
rlVertex2f(v2.x, v2.y);
rlTexCoord2f((recTexShapes.x + recTexShapes.width)/texShapes.width, (recTexShapes.y + recTexShapes.height)/texShapes.height);
rlVertex2f(v2.x, v2.y);
rlTexCoord2f((recTexShapes.x + recTexShapes.width)/texShapes.width, recTexShapes.y/texShapes.height);
rlVertex2f(v3.x, v3.y);
rlEnd();
rlDisableTexture();
#else
rlBegin(RL_TRIANGLES);
@ -512,24 +435,31 @@ void DrawTriangleLines(Vector2 v1, Vector2 v2, Vector2 v3, Color color)
void DrawPoly(Vector2 center, int sides, float radius, float rotation, Color color)
{
if (sides < 3) sides = 3;
if (rlCheckBufferLimit(RL_QUADS, 4*(360/sides))) rlglDraw();
rlPushMatrix();
rlTranslatef(center.x, center.y, 0.0);
rlRotatef(rotation, 0, 0, 1);
#if defined(SUPPORT_QUADS_DRAW_MODE)
rlEnableTexture(GetTextureDefault().id); // Default white texture
rlEnableTexture(GetShapesTexture().id);
rlBegin(RL_QUADS);
for (int i = 0; i < 360; i += 360/sides)
{
rlColor4ub(color.r, color.g, color.b, color.a);
rlTexCoord2f(recTexShapes.x/texShapes.width, recTexShapes.y/texShapes.height);
rlVertex2f(0, 0);
rlTexCoord2f(recTexShapes.x/texShapes.width, (recTexShapes.y + recTexShapes.height)/texShapes.height);
rlVertex2f(sinf(DEG2RAD*i)*radius, cosf(DEG2RAD*i)*radius);
rlTexCoord2f((recTexShapes.x + recTexShapes.width)/texShapes.width, (recTexShapes.y + recTexShapes.height)/texShapes.height);
rlVertex2f(sinf(DEG2RAD*i)*radius, cosf(DEG2RAD*i)*radius);
rlTexCoord2f((recTexShapes.x + recTexShapes.width)/texShapes.width, recTexShapes.y/texShapes.height);
rlVertex2f(sinf(DEG2RAD*(i + 360/sides))*radius, cosf(DEG2RAD*(i + 360/sides))*radius);
}
rlEnd();
@ -555,9 +485,9 @@ void DrawPolyEx(Vector2 *points, int pointsCount, Color color)
if (pointsCount >= 3)
{
if (rlCheckBufferLimit(RL_QUADS, pointsCount)) rlglDraw();
#if defined(SUPPORT_QUADS_DRAW_MODE)
rlEnableTexture(GetTextureDefault().id); // Default white texture
rlEnableTexture(GetShapesTexture().id);
rlBegin(RL_QUADS);
rlColor4ub(color.r, color.g, color.b, color.a);
@ -605,6 +535,13 @@ void DrawPolyExLines(Vector2 *points, int pointsCount, Color color)
}
}
// Define default texture used to draw shapes
void SetShapesTexture(Texture2D texture, Rectangle source)
{
texShapes = texture;
recTexShapes = source;
}
//----------------------------------------------------------------------------------
// Module Functions Definition - Collision Detection functions
//----------------------------------------------------------------------------------
@ -647,7 +584,7 @@ bool CheckCollisionPointTriangle(Vector2 point, Vector2 p1, Vector2 p2, Vector2
bool CheckCollisionRecs(Rectangle rec1, Rectangle rec2)
{
bool collision = false;
if ((rec1.x <= (rec2.x + rec2.width) && (rec1.x + rec1.width) >= rec2.x) &&
(rec1.y <= (rec2.y + rec2.height) && (rec1.y + rec1.height) >= rec2.y)) collision = true;
@ -675,7 +612,7 @@ bool CheckCollisionCircleRec(Vector2 center, float radius, Rectangle rec)
{
int recCenterX = (int)(rec.x + rec.width/2.0f);
int recCenterY = (int)(rec.y + rec.height/2.0f);
float dx = (float)fabs(center.x - recCenterX);
float dy = (float)fabs(center.y - recCenterY);
@ -685,7 +622,7 @@ bool CheckCollisionCircleRec(Vector2 center, float radius, Rectangle rec)
if (dx <= (rec.width/2.0f)) { return true; }
if (dy <= (rec.height/2.0f)) { return true; }
float cornerDistanceSq = (dx - rec.width/2.0f)*(dx - rec.width/2.0f) +
float cornerDistanceSq = (dx - rec.width/2.0f)*(dx - rec.width/2.0f) +
(dy - rec.height/2.0f)*(dy - rec.height/2.0f);
return (cornerDistanceSq <= (radius*radius));
@ -744,7 +681,7 @@ Rectangle GetCollisionRec(Rectangle rec1, Rectangle rec2)
{
if (retRec.width >= rec1.width) retRec.width = rec1.width;
}
if (rec1.height > rec2.height)
{
if (retRec.height >= rec2.height) retRec.height = rec2.height;
@ -762,12 +699,29 @@ Rectangle GetCollisionRec(Rectangle rec1, Rectangle rec2)
// Module specific Functions Definition
//----------------------------------------------------------------------------------
// Cubic easing in-out
// Cubic easing in-out
// NOTE: Required for DrawLineBezier()
static float EaseCubicInOut(float t, float b, float c, float d)
{
static float EaseCubicInOut(float t, float b, float c, float d)
{
if ((t /= 0.5f*d) < 1)
return 0.5f*c*t*t*t + b;
t -= 2;
return 0.5f*c*(t*t*t + 2.0f) + b;
}
// Get texture to draw shapes (RAII)
static Texture2D GetShapesTexture(void)
{
if (texShapes.id <= 0)
{
#if defined(SUPPORT_FONT_TEXTURE)
texShapes = GetFontDefault().texture; // Use font texture white character
recTexShapes = GetFontDefault().chars[95].rec;
#else
texShapes = GetTextureDefault(); // Use default white texture
recTexShapes = { 0.0f, 0.0f, 1.0f, 1.0f };
#endif
}
return texShapes;
}