77 lines
1.5 KiB
C++
77 lines
1.5 KiB
C++
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//
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// Created by trotfunky on 24/09/2019.
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//
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#include "displayers.h"
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void display_pyramid(float x, float y, float z, float c, float h)
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{
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glBegin(GL_TRIANGLES);
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// First side
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glColor3f(1,0,0);
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// Summit
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glVertex3f(x,y+h,z);
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glVertex3f(x+c/2,y,z+c/2);
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glVertex3f(x-c/2,y,z+c/2);
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// Second side
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glColor3f(0,1,0);
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glVertex3f(x,y+h,z);
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glVertex3f(x+c/2,y,z+c/2);
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glVertex3f(x+c/2,y,z-c/2);
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// Third side
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glColor3f(0,0,1);
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glVertex3f(x,y+h,z);
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glVertex3f(x-c/2,y,z+c/2);
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glVertex3f(x-c/2,y,z-c/2);
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// Fourth side
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glColor3f(1,1,0);
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glVertex3f(x,y+h,z);
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glVertex3f(x-c/2,y,z-c/2);
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glVertex3f(x+c/2,y,z-c/2);
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glEnd();
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// Bottom
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glBegin(GL_QUADS);
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glColor3f(0,1,1);
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glVertex3f(x-c/2,y,z-c/2);
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glVertex3f(x-c/2,y,z+c/2);
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glVertex3f(x+c/2,y,z+c/2);
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glVertex3f(x+c/2,y,z-c/2);
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glEnd();
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}
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void display_rotating_pyramid(float x, float y, float z, float c, float h, float alpha)
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{
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glPushMatrix();
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glTranslatef(x,0,z);
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glRotatef(alpha,0,1,0);
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glTranslatef(-x,0,-z);
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display_pyramid(x,y,z,c,h);
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glPopMatrix();
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}
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void display_tree(float x, float y, float z, float h, float w)
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{
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glBegin(GL_QUADS);
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glVertex3f(x+w/2,y,z);
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glVertex3f(x-w/2,y,z);
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glVertex3f(x-w/2,y+h,z);
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glVertex3f(x+w/2,y+h,z);
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glVertex3f(x,y,z+w/2);
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glVertex3f(x,y,z-w/2);
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glVertex3f(x,y+h,z-w/2);
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glVertex3f(x,y+h,z+w/2);
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glEnd();
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}
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