diff options
author | chai <chaifix@163.com> | 2018-08-22 14:01:31 +0800 |
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committer | chai <chaifix@163.com> | 2018-08-22 14:01:31 +0800 |
commit | 4013357b9dd88c614906263cd5b0657b535bd9cb (patch) | |
tree | fde8bb6f4f99b46f453e9e290bc5d7b122d9fbf1 /src/libjin/Graphics/Geometry.cpp | |
parent | 36621e6be9604517c900adc0d97665e975c2b325 (diff) |
*update
Diffstat (limited to 'src/libjin/Graphics/Geometry.cpp')
-rw-r--r-- | src/libjin/Graphics/Geometry.cpp | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/src/libjin/Graphics/Geometry.cpp b/src/libjin/Graphics/Geometry.cpp deleted file mode 100644 index 69e3596..0000000 --- a/src/libjin/Graphics/Geometry.cpp +++ /dev/null @@ -1,122 +0,0 @@ -#include "../modules.h" -#if JIN_MODULES_RENDER - -#include "Geometry.h" -#include "../math/matrix.h" -#include "../math/constant.h" -#include <string> - -namespace jin -{ -namespace graphics -{ - - void point(int x, int y) - { - float vers[] = { x + 0.5f , y + 0.5f }; - glEnableClientState(GL_VERTEX_ARRAY); - glVertexPointer(2, GL_FLOAT, 0, (GLvoid*)vers); - glDrawArrays(GL_POINTS, 0, 1); - glDisableClientState(GL_VERTEX_ARRAY); - } - - void points(int n, GLshort* p) - { - glEnableClientState(GL_VERTEX_ARRAY); - - glVertexPointer(2, GL_SHORT, 0, (GLvoid*)p); - glDrawArrays(GL_POINTS, 0, n); - - glDisableClientState(GL_VERTEX_ARRAY); - } - - void line(int x1, int y1, int x2, int y2) - { - glDisable(GL_TEXTURE_2D); - float verts[] = { - x1, y1, - x2, y2 - }; - - glEnableClientState(GL_VERTEX_ARRAY); - glVertexPointer(2, GL_FLOAT, 0, (GLvoid*)verts); - glDrawArrays(GL_LINES, 0, 2); - glDisableClientState(GL_VERTEX_ARRAY); - } - - void circle(RENDER_MODE mode, int x, int y, int r) - { - r = r < 0 ? 0 : r; - - int points = 40; - float two_pi = static_cast<float>(PI * 2); - if (points <= 0) points = 1; - float angle_shift = (two_pi / points); - float phi = .0f; - - float *coords = new float[2 * (points + 1)]; - for (int i = 0; i < points; ++i, phi += angle_shift) - { - coords[2 * i] = x + r * cos(phi); - coords[2 * i + 1] = y + r * sin(phi); - } - - coords[2 * points] = coords[0]; - coords[2 * points + 1] = coords[1]; - - polygon(mode, coords, points); - - delete[] coords; - } - - void rect(RENDER_MODE mode, int x, int y, int w, int h) - { - float coords[] = { x, y, x + w, y, x + w, y + h, x, y + h }; - polygon(mode, coords, 4); - } - - void triangle(RENDER_MODE mode, int x1, int y1, int x2, int y2, int x3, int y3) - { - float coords[] = { x1, y1, x2, y2, x3, y3 }; - polygon(mode, coords, 3); - } - - void polygon_line(float* p, int count) - { - float* verts = new float[count * 4]; - for (int i = 0; i < count; ++i) - { - // each line has two point n,n+1 - verts[i * 4] = p[i * 2]; - verts[i * 4 + 1] = p[i * 2 + 1]; - verts[i * 4 + 2] = p[(i + 1) % count * 2]; - verts[i * 4 + 3] = p[(i + 1) % count * 2 + 1]; - } - - glEnableClientState(GL_VERTEX_ARRAY); - glVertexPointer(2, GL_FLOAT, 0, (GLvoid*)verts); - glDrawArrays(GL_LINES, 0, count * 2); - glDisableClientState(GL_VERTEX_ARRAY); - - delete[] verts; - } - - void polygon(RENDER_MODE mode, float* p, int count) - { - if (mode == LINE) - { - polygon_line(p, count); - } - else if (mode == FILL) - { - glEnableClientState(GL_VERTEX_ARRAY); - glVertexPointer(2, GL_FLOAT, 0, (const GLvoid*)p); - glDrawArrays(GL_POLYGON, 0, count); - glDisableClientState(GL_VERTEX_ARRAY); - } - } - -} -} - -#endif // JIN_MODULES_RENDER
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