*修改文件名

1 files changed, 128 insertions, 0 deletions

diff --git a/src/libjin/Graphics/je_shapes.cpp b/src/libjin/Graphics/je_shapes.cpp
new file mode 100644
index 0000000..31c793f
--- /dev/null
+++ b/src/libjin/Graphics/je_shapes.cpp
@@ -0,0 +1,128 @@
+#include "../core/je_configuration.h"
+#if LIBJIN_MODULES_RENDER
+
+#include <string>
+
+#include "../math/je_matrix.h"
+#include "../math/je_constant.h"
+
+#include "shader/je_shader.h"
+#include "je_shapes.h" 
+
+namespace jin
+{
+	namespace graphics
+	{
+
+		using namespace math;
+
+		void point(int x, int y)
+		{
+			float verts[] = { x + 0.5f , y + 0.5f };
+
+			Shader* shader = Shader::getCurrentShader();
+			shader->bindVertexPointer(2, GL_FLOAT, 0, verts);
+			gl.ModelMatrix.setIdentity();
+			shader->sendMatrix4(SHADER_MODEL_MATRIX, &gl.ModelMatrix);
+			shader->sendMatrix4(SHADER_PROJECTION_MATRIX, &gl.ProjectionMatrix);
+
+			glDrawArrays(GL_POINTS, 0, 1);
+		}
+
+		void points(int n, GLshort* p)
+		{
+			Shader* shader = Shader::getCurrentShader();
+			shader->bindVertexPointer(2, GL_SHORT, 0, p);
+			gl.ModelMatrix.setIdentity();
+			shader->sendMatrix4(SHADER_MODEL_MATRIX, &gl.ModelMatrix);
+			shader->sendMatrix4(SHADER_PROJECTION_MATRIX, &gl.ProjectionMatrix);
+        
+			glDrawArrays(GL_POINTS, 0, n);
+		}
+
+		void line(int x1, int y1, int x2, int y2)
+		{
+			float verts[] = {
+				x1, y1,
+				x2, y2
+			};
+		
+			Shader* shader = Shader::getCurrentShader();
+			shader->bindVertexPointer(2, GL_FLOAT, 0, verts);
+			gl.ModelMatrix.setIdentity();
+			shader->sendMatrix4(SHADER_MODEL_MATRIX, &gl.ModelMatrix);
+			shader->sendMatrix4(SHADER_PROJECTION_MATRIX, &gl.ProjectionMatrix);
+        
+			glDrawArrays(GL_LINES, 0, 2);
+		}
+
+		void circle(RenderMode 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(RenderMode 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(RenderMode 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)
+		{
+			Shader* shader = Shader::getCurrentShader();
+			gl.ModelMatrix.setIdentity();
+			shader->sendMatrix4(SHADER_MODEL_MATRIX, &gl.ModelMatrix);
+			shader->sendMatrix4(SHADER_PROJECTION_MATRIX, &gl.ProjectionMatrix);
+			shader->bindVertexPointer(2, GL_FLOAT, 0, p);
+
+			glDrawArrays(GL_LINE_LOOP, 0, count);
+		}
+
+		void polygon(RenderMode mode, float* p, int count)
+		{
+			if (mode == LINE)
+			{
+				polygon_line(p, count);
+			}
+			else if (mode == FILL)
+			{
+				Shader* shader = Shader::getCurrentShader();
+				gl.ModelMatrix.setIdentity();
+				shader->sendMatrix4(SHADER_MODEL_MATRIX, &gl.ModelMatrix);
+				shader->sendMatrix4(SHADER_PROJECTION_MATRIX, &gl.ProjectionMatrix);
+				shader->bindVertexPointer(2, GL_FLOAT, 0, p);
+
+				glDrawArrays(GL_POLYGON, 0, count);
+			}
+		}
+
+	} // namespace graphics
+} // namespace jin
+
+#endif // LIBJIN_MODULES_RENDER
\ No newline at end of file