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#include "video/video.h"
#include "game/game.h"
void drawGlow(Camera *pCam, Player *pTarget, PlayerVisual *pV,
Visual *d, float dim) {
float mat[4*4];
float alpha, dist;
float x, y;
glPushMatrix();
getPositionFromData(&x, &y, pTarget->data);
glTranslatef(x, y, 0);
glDepthMask(GL_FALSE);
glEnable(GL_DEPTH_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glEnable(GL_BLEND);
glGetFloatv(GL_MODELVIEW_MATRIX, mat);
mat[0] = mat[5] = mat[10] = 1.0;
mat[1] = mat[2] = 0.0;
mat[4] = mat[6] = 0.0;
mat[8] = mat[9] = 0.0;
glLoadMatrixf(mat);
{
vec3 v;
v.v[0] = x - pCam->cam[0];
v.v[1] = y - pCam->cam[1];
v.v[2] = 0 - pCam->cam[2];
dist = vec3Length(&v);
}
{
const float fMin = 30;
const float fMax = 100;
if(dist < fMin) alpha = 0.0f;
else if(dist > fMax) alpha = 1.0f;
else alpha = (dist - fMin) / (fMax - fMin);
// printf("dist: %.2f, alpha: %.2f\n", dist, alpha);
}
glBegin(GL_TRIANGLE_FAN);
glColor4f(pV->pColorDiffuse[0],
pV->pColorDiffuse[1],
pV->pColorDiffuse[2],
alpha);
glVertex3f(0,TRAIL_HEIGHT/2, 0);
glColor4f(0,0,0,0.0);
glVertex3d(dim*cos(-0.2*3.1415/5.0),
TRAIL_HEIGHT/2+dim*sin(-0.2*3.1415/5.0), 0);
glVertex3d(dim*cos(1.0*3.1415/5.0),
TRAIL_HEIGHT/2+dim*sin(1.0*3.1415/5.0), 0);
glVertex3d(dim*cos(2.0*3.1415/5.0),
TRAIL_HEIGHT/2+dim*sin(2.0*3.1415/5.0), 0);
glVertex3d(dim*cos(3.0*3.1415/5.0),
TRAIL_HEIGHT/2+dim*sin(3.0*3.1415/5.0), 0);
glVertex3d(dim*cos(4.0*3.1415/5.0),
TRAIL_HEIGHT/2+dim*sin(4.0*3.1415/5.0), 0);
glVertex3d(dim*cos(5.2*3.1415/5.0),
TRAIL_HEIGHT/2+dim*sin(5.2*3.1415/5.0), 0);
glEnd();
polycount += 5;
glBegin(GL_TRIANGLES);
glColor4f(pV->pColorDiffuse[0],
pV->pColorDiffuse[1],
pV->pColorDiffuse[2],
alpha);
glVertex3f(0,TRAIL_HEIGHT/2, 0);
glColor4f(0,0,0,0.0);
glVertex3f(0,-TRAIL_HEIGHT/4,0);
glVertex3d(dim*cos(-0.2f*3.1415/5.0),
TRAIL_HEIGHT/2+dim*sin(-0.2*3.1415/5.0), 0);
glColor4f(pV->pColorDiffuse[0],
pV->pColorDiffuse[1],
pV->pColorDiffuse[2],
alpha);
glVertex3f(0,TRAIL_HEIGHT/2, 0);
glColor4f(0,0,0,0.0);
glVertex3d(dim*cos(5.2*3.1415/5.0),
TRAIL_HEIGHT/2+dim*sin(5.2*3.1415/5.0), 0);
glVertex3f(0,-TRAIL_HEIGHT/4,0);
glEnd();
polycount += 3;
glDepthMask(GL_TRUE);
glEnable(GL_DEPTH_TEST);
glPopMatrix();
}
void drawImpact(PlayerVisual *pV) {
glDisable(GL_LIGHTING);
glPushMatrix();
glRotatef(90, 90, 0, 1);
/*
* Drop impact slightly below the floor and move it a tiny bit
* back from the impact point so we don't draw behind the
* trail/wall that's hit.
*/
glTranslatef(0.0, -0.5, -0.5);
glColor3f(0.68f, 0, 0);
drawExplosion(&(pV->impact_radius));
glPopMatrix();
glEnable(GL_LIGHTING);
}
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