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Update C sources, add new functions

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This commit is contained in:
Milan Nikolic 2018-05-06 09:34:11 +02:00
parent e6a1abb290
commit a6d36a3699
98 changed files with 7964 additions and 2985 deletions
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359
raylib/shapes.c
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@ -4,16 +4,13 @@
*
* CONFIGURATION:
*
* #define SUPPORT_QUADS_ONLY
* Draw shapes using only QUADS, vertex are accumulated in QUADS arrays (like textures)
*
* #define SUPPORT_TRIANGLES_ONLY
* Draw shapes using only TRIANGLES, vertex are accumulated in TRIANGLES arrays
*
* #define USE_DEFAULT_FONT_TEXTURE
* #define SUPPORT_FONT_TEXTURE
* Draw rectangle shapes using font texture white character instead of default white texture
* 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.
* Some lines-based shapes could still use lines
*
* LICENSE: zlib/libpng
*
@ -36,13 +33,12 @@
*
**********************************************************************************************/
#define USE_DEFAULT_FONT_TEXTURE
#include "raylib.h"
#include "config.h" // Defines module configuration flags
#include "raylib.h" // Declares module functions
#include "rlgl.h" // raylib OpenGL abstraction layer to OpenGL 1.1, 2.1, 3.3+ or ES2
#include <stdlib.h> // Required for: abs()
#include <stdlib.h> // Required for: abs(), fabs()
#include <math.h> // Required for: sinf(), cosf(), sqrtf()
//----------------------------------------------------------------------------------
@ -194,37 +190,34 @@ void DrawCircleGradient(int centerX, int centerY, float radius, Color color1, Co
// 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 (rlGetVersion() == OPENGL_11)
{
rlBegin(RL_TRIANGLES);
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);
}
rlEnd();
}
else if ((rlGetVersion() == OPENGL_21) || (rlGetVersion() == OPENGL_33) || (rlGetVersion() == OPENGL_ES_20))
{
rlEnableTexture(GetTextureDefault().id); // Default white texture
#if defined(SUPPORT_QUADS_DRAW_MODE)
rlEnableTexture(GetTextureDefault().id); // Default white texture
rlBegin(RL_QUADS);
for (int i = 0; i < 360; i += 20)
{
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);
rlVertex2f(center.x + sinf(DEG2RAD*(i + 20))*radius, center.y + cosf(DEG2RAD*(i + 20))*radius);
}
rlEnd();
rlBegin(RL_QUADS);
for (int i = 0; i < 360; i += 20)
{
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);
rlVertex2f(center.x + sinf(DEG2RAD*(i + 20))*radius, center.y + cosf(DEG2RAD*(i + 20))*radius);
}
rlEnd();
rlDisableTexture();
}
rlDisableTexture();
#else
rlBegin(RL_TRIANGLES);
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);
}
rlEnd();
#endif
}
// Draw circle outline
@ -255,72 +248,69 @@ void DrawRectangle(int posX, int posY, int width, int height, Color color)
// 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 (rlGetVersion() == OPENGL_11)
{
rlBegin(RL_TRIANGLES);
rlColor4ub(color.r, color.g, color.b, color.a);
#if defined(SUPPORT_QUADS_DRAW_MODE)
#if defined(SUPPORT_FONT_TEXTURE)
// Draw rectangle using font texture white character
rlEnableTexture(GetDefaultFont().texture.id);
rlVertex2i(position.x, position.y);
rlVertex2i(position.x, position.y + size.y);
rlVertex2i(position.x + size.x, position.y + size.y);
rlBegin(RL_QUADS);
rlColor4ub(color.r, color.g, color.b, color.a);
rlNormal3f(0.0f, 0.0f, 1.0f);
rlVertex2i(position.x, position.y);
rlVertex2i(position.x + size.x, position.y + size.y);
rlVertex2i(position.x + size.x, position.y);
rlEnd();
}
else if ((rlGetVersion() == OPENGL_21) || (rlGetVersion() == OPENGL_33) || (rlGetVersion() == OPENGL_ES_20))
{
#if defined(USE_DEFAULT_FONT_TEXTURE)
// Draw rectangle using font texture white character
rlEnableTexture(GetDefaultFont().texture.id);
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)GetDefaultFont().chars[95].rec.x/GetDefaultFont().texture.width,
(float)GetDefaultFont().chars[95].rec.y/GetDefaultFont().texture.height);
rlVertex2f(position.x, position.y);
rlTexCoord2f((float)GetDefaultFont().chars[95].rec.x/GetDefaultFont().texture.width,
(float)(GetDefaultFont().chars[95].rec.y + GetDefaultFont().chars[95].rec.height)/GetDefaultFont().texture.height);
rlVertex2f(position.x, position.y + size.y);
rlTexCoord2f((float)(GetDefaultFont().chars[95].rec.x + GetDefaultFont().chars[95].rec.width)/GetDefaultFont().texture.width,
(float)(GetDefaultFont().chars[95].rec.y + GetDefaultFont().chars[95].rec.height)/GetDefaultFont().texture.height);
rlVertex2f(position.x + size.x, position.y + size.y);
rlTexCoord2f((float)(GetDefaultFont().chars[95].rec.x + GetDefaultFont().chars[95].rec.width)/GetDefaultFont().texture.width,
(float)GetDefaultFont().chars[95].rec.y/GetDefaultFont().texture.height);
rlVertex2f(position.x + size.x, position.y);
rlEnd();
// NOTE: Default raylib font character 95 is a white square
rlTexCoord2f((float)GetDefaultFont().chars[95].rec.x/GetDefaultFont().texture.width,
(float)GetDefaultFont().chars[95].rec.y/GetDefaultFont().texture.height);
rlVertex2f(position.x, position.y);
rlDisableTexture();
rlTexCoord2f((float)GetDefaultFont().chars[95].rec.x/GetDefaultFont().texture.width,
(float)(GetDefaultFont().chars[95].rec.y + GetDefaultFont().chars[95].rec.height)/GetDefaultFont().texture.height);
rlVertex2f(position.x, position.y + size.y);
rlTexCoord2f((float)(GetDefaultFont().chars[95].rec.x + GetDefaultFont().chars[95].rec.width)/GetDefaultFont().texture.width,
(float)(GetDefaultFont().chars[95].rec.y + GetDefaultFont().chars[95].rec.height)/GetDefaultFont().texture.height);
rlVertex2f(position.x + size.x, position.y + size.y);
rlTexCoord2f((float)(GetDefaultFont().chars[95].rec.x + GetDefaultFont().chars[95].rec.width)/GetDefaultFont().texture.width,
(float)GetDefaultFont().chars[95].rec.y/GetDefaultFont().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
rlEnableTexture(GetTextureDefault().id); // Default white texture
rlBegin(RL_TRIANGLES);
rlColor4ub(color.r, color.g, color.b, color.a);
rlBegin(RL_QUADS);
rlColor4ub(color.r, color.g, color.b, color.a);
rlNormal3f(0.0f, 0.0f, 1.0f);
rlVertex2i(position.x, position.y);
rlVertex2i(position.x, position.y + size.y);
rlVertex2i(position.x + size.x, position.y + size.y);
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
}
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
}
// Draw a color-filled rectangle
@ -334,7 +324,7 @@ void DrawRectanglePro(Rectangle rec, Vector2 origin, float rotation, Color color
rlEnableTexture(GetTextureDefault().id);
rlPushMatrix();
rlTranslatef((float)rec.x, (float)rec.y, 0);
rlTranslatef(rec.x, rec.y, 0);
rlRotatef(rotation, 0, 0, 1);
rlTranslatef(-origin.x, -origin.y, 0);
@ -343,9 +333,9 @@ void DrawRectanglePro(Rectangle rec, Vector2 origin, float rotation, Color color
rlNormal3f(0.0f, 0.0f, 1.0f); // Normal vector pointing towards viewer
rlVertex2f(0.0f, 0.0f);
rlVertex2f(0.0f, (float)rec.height);
rlVertex2f((float)rec.width, (float)rec.height);
rlVertex2f((float)rec.width, 0.0f);
rlVertex2f(0.0f, rec.height);
rlVertex2f(rec.width, rec.height);
rlVertex2f(rec.width, 0.0f);
rlEnd();
rlPopMatrix();
@ -370,7 +360,7 @@ 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(USE_DEFAULT_FONT_TEXTURE)
#if defined(SUPPORT_FONT_TEXTURE)
// Draw rectangle using font texture white character
rlEnableTexture(GetDefaultFont().texture.id);
@ -379,23 +369,23 @@ void DrawRectangleGradientEx(Rectangle rec, Color col1, Color col2, Color col3,
// NOTE: Default raylib font character 95 is a white square
rlColor4ub(col1.r, col1.g, col1.b, col1.a);
rlTexCoord2f((float)GetDefaultFont().chars[95].rec.x/GetDefaultFont().texture.width,
(float)GetDefaultFont().chars[95].rec.y/GetDefaultFont().texture.height);
rlTexCoord2f(GetDefaultFont().chars[95].rec.x/GetDefaultFont().texture.width,
GetDefaultFont().chars[95].rec.y/GetDefaultFont().texture.height);
rlVertex2f(rec.x, rec.y);
rlColor4ub(col2.r, col2.g, col2.b, col2.a);
rlTexCoord2f((float)GetDefaultFont().chars[95].rec.x/GetDefaultFont().texture.width,
(float)(GetDefaultFont().chars[95].rec.y + GetDefaultFont().chars[95].rec.height)/GetDefaultFont().texture.height);
rlTexCoord2f(GetDefaultFont().chars[95].rec.x/GetDefaultFont().texture.width,
(GetDefaultFont().chars[95].rec.y + GetDefaultFont().chars[95].rec.height)/GetDefaultFont().texture.height);
rlVertex2f(rec.x, rec.y + rec.height);
rlColor4ub(col3.r, col3.g, col3.b, col3.a);
rlTexCoord2f((float)(GetDefaultFont().chars[95].rec.x + GetDefaultFont().chars[95].rec.width)/GetDefaultFont().texture.width,
(float)(GetDefaultFont().chars[95].rec.y + GetDefaultFont().chars[95].rec.height)/GetDefaultFont().texture.height);
rlTexCoord2f((GetDefaultFont().chars[95].rec.x + GetDefaultFont().chars[95].rec.width)/GetDefaultFont().texture.width,
(GetDefaultFont().chars[95].rec.y + GetDefaultFont().chars[95].rec.height)/GetDefaultFont().texture.height);
rlVertex2f(rec.x + rec.width, rec.y + rec.height);
rlColor4ub(col4.r, col4.g, col4.b, col4.a);
rlTexCoord2f((float)(GetDefaultFont().chars[95].rec.x + GetDefaultFont().chars[95].rec.width)/GetDefaultFont().texture.width,
(float)GetDefaultFont().chars[95].rec.y/GetDefaultFont().texture.height);
rlTexCoord2f((GetDefaultFont().chars[95].rec.x + GetDefaultFont().chars[95].rec.width)/GetDefaultFont().texture.width,
GetDefaultFont().chars[95].rec.y/GetDefaultFont().texture.height);
rlVertex2f(rec.x + rec.width, rec.y);
rlEnd();
@ -431,30 +421,27 @@ void DrawRectangleGradientEx(Rectangle rec, Color col1, Color col2, Color col3,
// 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 (rlGetVersion() == OPENGL_11)
{
rlBegin(RL_LINES);
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2i(posX + 1, posY + 1);
rlVertex2i(posX + width, posY + 1);
#if defined(SUPPORT_QUADS_DRAW_MODE)
DrawRectangle(posX, posY, width, 1, color);
DrawRectangle(posX + width - 1, posY + 1, 1, height - 2, color);
DrawRectangle(posX, posY + height - 1, width, 1, color);
DrawRectangle(posX, posY + 1, 1, height - 2, color);
#else
rlBegin(RL_LINES);
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2i(posX + 1, posY + 1);
rlVertex2i(posX + width, posY + 1);
rlVertex2i(posX + width, posY + 1);
rlVertex2i(posX + width, posY + height);
rlVertex2i(posX + width, posY + 1);
rlVertex2i(posX + width, posY + height);
rlVertex2i(posX + width, posY + height);
rlVertex2i(posX + 1, posY + height);
rlVertex2i(posX + width, posY + height);
rlVertex2i(posX + 1, posY + height);
rlVertex2i(posX + 1, posY + height);
rlVertex2i(posX + 1, posY + 1);
rlEnd();
}
else if ((rlGetVersion() == OPENGL_21) || (rlGetVersion() == OPENGL_33) || (rlGetVersion() == OPENGL_ES_20))
{
DrawRectangle(posX, posY, width, 1, color);
DrawRectangle(posX + width - 1, posY + 1, 1, height - 2, color);
DrawRectangle(posX, posY + height - 1, width, 1, color);
DrawRectangle(posX, posY + 1, 1, height - 2, color);
}
rlVertex2i(posX + 1, posY + height);
rlVertex2i(posX + 1, posY + 1);
rlEnd();
#endif
}
// Draw rectangle outline with extended parameters
@ -475,31 +462,29 @@ void DrawRectangleLinesEx(Rectangle rec, int lineThick, Color color)
// Draw a triangle
void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color)
{
if (rlGetVersion() == OPENGL_11)
{
rlBegin(RL_TRIANGLES);
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2f(v1.x, v1.y);
rlVertex2f(v2.x, v2.y);
rlVertex2f(v3.x, v3.y);
rlEnd();
}
else if ((rlGetVersion() == OPENGL_21) || (rlGetVersion() == OPENGL_33) || (rlGetVersion() == OPENGL_ES_20))
{
rlEnableTexture(GetTextureDefault().id); // Default white texture
#if defined(SUPPORT_QUADS_DRAW_MODE)
rlEnableTexture(GetTextureDefault().id); // Default white texture
rlBegin(RL_QUADS);
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2f(v1.x, v1.y);
rlVertex2f(v2.x, v2.y);
rlVertex2f(v2.x, v2.y);
rlVertex2f(v3.x, v3.y);
rlEnd();
rlDisableTexture();
}
rlBegin(RL_QUADS);
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2f(v1.x, v1.y);
rlVertex2f(v2.x, v2.y);
rlVertex2f(v2.x, v2.y);
rlVertex2f(v3.x, v3.y);
rlEnd();
rlDisableTexture();
#else
rlBegin(RL_TRIANGLES);
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2f(v1.x, v1.y);
rlVertex2f(v2.x, v2.y);
rlVertex2f(v3.x, v3.y);
rlEnd();
#endif
}
// Draw a triangle using lines
void DrawTriangleLines(Vector2 v1, Vector2 v2, Vector2 v3, Color color)
{
rlBegin(RL_LINES);
@ -523,7 +508,23 @@ void DrawPoly(Vector2 center, int sides, float radius, float rotation, Color col
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
rlBegin(RL_QUADS);
for (int i = 0; i < 360; i += 360/sides)
{
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2f(0, 0);
rlVertex2f(sinf(DEG2RAD*i)*radius, cosf(DEG2RAD*i)*radius);
rlVertex2f(sinf(DEG2RAD*i)*radius, cosf(DEG2RAD*i)*radius);
rlVertex2f(sinf(DEG2RAD*(i + 360/sides))*radius, cosf(DEG2RAD*(i + 360/sides))*radius);
}
rlEnd();
rlDisableTexture();
#else
rlBegin(RL_TRIANGLES);
for (int i = 0; i < 360; i += 360/sides)
{
@ -534,38 +535,54 @@ void DrawPoly(Vector2 center, int sides, float radius, float rotation, Color col
rlVertex2f(sinf(DEG2RAD*(i + 360/sides))*radius, cosf(DEG2RAD*(i + 360/sides))*radius);
}
rlEnd();
#endif
rlPopMatrix();
}
// Draw a closed polygon defined by points
// NOTE: Array num elements MUST be passed as parameter to function
void DrawPolyEx(Vector2 *points, int numPoints, Color color)
void DrawPolyEx(Vector2 *points, int pointsCount, Color color)
{
if (numPoints >= 3)
if (pointsCount >= 3)
{
#if defined(SUPPORT_QUADS_DRAW_MODE)
rlEnableTexture(GetTextureDefault().id); // Default white texture
rlBegin(RL_QUADS);
rlColor4ub(color.r, color.g, color.b, color.a);
for (int i = 1; i < pointsCount - 1; i++)
{
rlVertex2f(points[0].x, points[0].y);
rlVertex2f(points[i].x, points[i].y);
rlVertex2f(points[i].x, points[i].y);
rlVertex2f(points[i + 1].x, points[i + 1].y);
}
rlEnd();
rlDisableTexture();
#else
rlBegin(RL_TRIANGLES);
rlColor4ub(color.r, color.g, color.b, color.a);
for (int i = 1; i < numPoints - 1; i++)
for (int i = 1; i < pointsCount - 1; i++)
{
rlVertex2f(points[0].x, points[0].y);
rlVertex2f(points[i].x, points[i].y);
rlVertex2f(points[i + 1].x, points[i + 1].y);
}
rlEnd();
#endif
}
}
// Draw polygon lines
// NOTE: Array num elements MUST be passed as parameter to function
void DrawPolyExLines(Vector2 *points, int numPoints, Color color)
// Draw polygon using lines
void DrawPolyExLines(Vector2 *points, int pointsCount, Color color)
{
if (numPoints >= 2)
if (pointsCount >= 2)
{
rlBegin(RL_LINES);
rlColor4ub(color.r, color.g, color.b, color.a);
for (int i = 0; i < numPoints - 1; i++)
for (int i = 0; i < pointsCount - 1; i++)
{
rlVertex2f(points[i].x, points[i].y);
rlVertex2f(points[i + 1].x, points[i + 1].y);
@ -650,14 +667,14 @@ bool CheckCollisionCircleRec(Vector2 center, float radius, Rectangle rec)
float dx = fabsf(center.x - recCenterX);
float dy = fabsf(center.y - recCenterY);
if (dx > ((float)rec.width/2.0f + radius)) { return false; }
if (dy > ((float)rec.height/2.0f + radius)) { return false; }
if (dx > (rec.width/2.0f + radius)) { return false; }
if (dy > (rec.height/2.0f + radius)) { return false; }
if (dx <= ((float)rec.width/2.0f)) { return true; }
if (dy <= ((float)rec.height/2.0f)) { return true; }
if (dx <= (rec.width/2.0f)) { return true; }
if (dy <= (rec.height/2.0f)) { return true; }
float cornerDistanceSq = (dx - (float)rec.width/2.0f)*(dx - (float)rec.width/2.0f) +
(dy - (float)rec.height/2.0f)*(dy - (float)rec.height/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));
}